HomeMy WebLinkAbout0169.094FebI1lary 17, 1994
HONORABLE CIT¥ COUNCIL
Palo Alto, California
Matadero Creek -Phase V. Application by the Santa
Clara Valley water District (SCVWD) for Park
Imprgysment QpdinanLe SaaemgntB and Site and Design Reyiew
Members of the Council!
RRPPRT IN BBIEF
This report requests COuncil approval of a Park Improvement
Ordinance, both temporary construction permits and permanent
easements. and a Site and Design Application for the SCVWD'5
Matadero Creek -Phase V project. The project consists of the
construction of 4~300 feet of unde~und concrete box culvert, a
confluence s~ructure at Matadero Creek, a new bridge across
Matadero Creek (which viII replace an existing hridge) and
modification of two existing sediment basins along Barron Creek.
The proj ect extends along the Bol Park bicycle path from varian
Associates (611 Iian.en Nay) to Henry M. Gunn High Scbool (760
Arast.radero Road) _ The improvements are d.esigned to divert a
major portion of the One Hundred Year Flood from both Matadero
and Ban-on Creeks to Matadero Creek downstream of Xl Camino Real_
An aDalysis ot the project is contained in the Planning
Coamission staff report dated January 21, 1..994 _ A copy is
attached. Minu.tes of both the Planning Corcmission meeting and
the Architectural Review Board meeting are included in the City
Council packet.
The recQr!lDeUdations contained in. tbis report are the result of an
intense cooperative effort over the past three months between the
staff of the Planning and Public works DepartmentB~ the Santa
Clara Valley Hater District~ and residents of the area affected
by the project_ This collaborative effort has resulted in
significant improvement to the quality of the project and
reduction in its impacts.
r
PJ,ANNING COltit SS IeN AcrroN
The ?lanning Commission, at its meeting of January 26. 199~1
voted 5-1-1 (Commissioner Gla2ier voting No and Commissioner
Cassel absent), to recommend City Council adoption of the
mitigated negative declarativn and approval of the requested site
and design application (see the attached minutes). The majority
of the Planning Commission indicated that although the project
involved a number of incon~eniences for the neighbors, it
preserves the cI:eek in its natural state and mitigates the one
HUndred Year Flood 1 which has been a concern of the Barron park
neighborhood. They indicated ~hat the vast majority of trees
were being preserved, and the large trees to be removed would be
replaced at a 3:1 ratio. They also not~ the long public review
process and the amount of outreach to the neighborhood by the
SCVWD. ~e Commission add~d two conditions regarding ~raffic on
Matadero Avenue and one condition requiring security measures to
prevent children and wildlife from entering the underground hex
culvert {see the discussion below). 'The {',hangee recOttD'lended by
the Commdssion are incorporated into the conditions below and are
shown in italics.
Commdssioner Glazier voted against the application because h~
felt that additional measures were needed before the project
impacts couJ.d be adequately mitigated. Specifically~ he
i.nclicated. tbat the project would have a significant impact upon
the neighborhood because tbe application was incomplete in the
following ways: there was not a statement of justification for
ebe project, there was no independent confirmation from a tbird
party engineer regarding the need for a 12-foot by 12-foot
concrete box culvert, and there was no clear sense of the amount
of gradLng that was anticipated or what was going to be done with
the construction traffic.
Traffic on Matad'rq Ayenue
The Planning Commission added a cOndition requiring the SCVWD to
revise the project plans and specification& to require that the
majority of excavated soil from Stages A and B be used as
backfill in the project, rather than hauled otf the site and
replaced with imported material, so that not more than 10,000
cubic yards of soil is hauled on Matadero Avenue. The intent of
this condition was to reduce the number of construction truck
trips cn Matadero Avenue. The revised grading quantities and
number of truck trips are shown an the attached truck traffic
tables.
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ThE Commission also revised the condition regarding tr.affic
mitigation on Matadero Avenue to require that the SCVWD develop a
revised traffic plan in consultation with the neighbors. The
Cammdssion suggested that the following additional traffic
mitigation measure~ be considered in the revised plan:
• Enforcement provisions for a 20-mile-per-hour speed limit on
Matadero Avenue;
* No parking on Matadero Avenuei
• Improved visibility along Matadero Avenue;
• Speed bumps i and
• Flaggers with autt~rity to control traffic.
Pursuant to the re~ommendation hy the Planning Commission that
the SCVWD develop a revised traffic plan in consultation with the
neighbors, two meetings were scheduled with Barron Park
residents. The first meeting held on Tuesday, February Bth was
organized by the Barron Park residents to air concerns about
traffic safety on Matadero Avenue during co~truction and to
identify other requirements that could be incorporated into an
improvec:i traffic plan. At this meeting, which was attended b}'
approximately 30 residents, most Of tbe key traffic safety
concerns were resolved to the satisfaction of the SCVWD s City
Traffic Engineer and meeting attendees. A revised traffic plan
was presented to the neighborhood at a meeting ~nsored by the
SC\IWD on Wednesday, February 8th (the resu.lts of that meeting
will he reported at the Council meeting). As shown on the
attached Proposed Traffic Safety Plan, which was EUbltitted by the
SCVND following the February 16th meeting, the contractor would
be allowed to use Matadero Avenue only tor hauling away excavated
soil (i.e., one-way eastbound truck traffic during the six months
designated us~ of Matadero Avenue) .
Street Maintenance
Since the projected amount of truck traffic on Matadero Avenu.e
has been reduced by over 90 percent from. tbe SCVWD's original
estimate, statt recommends the elimination of the requir~t
that the scvw.o resurface the street at the conclusion of the
project, since it may not be necessary. As an alternative
condition of approval, staff recommends that the City and SCVWD
document the condition of the street prior to the project and
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that the SC\·~ be required t~ restore the stre~t t~ its original
condition at the conclusion of work. Restoration may incl~de
base failure repair. surface treatment, or asphalt overlay,
dep~nding upon the actual Bcreet condition at the conclusion of
the project. If it is d~termined that the S~~ is not requir~d
to resurface Matadero Av~nue as part of it~ project, staff will
reevaluate the condition of the street for possible inclusion in
the City's annual resurfacing program in the year fo~lowing
Matadero V construction. Based upon the expected Matadero V work
schedule j 1996 would be the earliest possible date for
resurfacing of Matadero Avenue by the City.
Security MeaSUres fpr Concrete Box CJlv~
The Planning Commission also expressed concern about the
possibility of children and wildlife entering the undergrcund box
culvert. A condition was added requiring the S~TWD to consider
installing security measures to pre~~nt children and wildlife
from entering the box culvert. Since the security measures could
restrict the flow of flood waters~ the Commission indicated that
the instal~ation of the security measures should depend 00 the
result of hydraulic studies. Staff recommends t~~t the design of
the security measures be reviewed by a wildlife biologist,
because the security measures could also be a barrier to fish
movement.
ape ACTION
On February 3, 19~4 the Architectural Review Board comp1imen~ed
the landscape architect on the replacement landscaping design and
recommended P1anning Commission acd City Council approval of the
site and design application with the conditions recommended by
the Planni~g Commission and staff, with four modifications. Tbe
changes recommended by the Board address tree preservation, the
Mata4ero Creek bridge aurface material, the height ot the bridge
railiD3, and construction vehicle and worker parking. The
changes recommended by the ARB are inccrporatea into the
conditions mentioned be~ow and are shown in italics. No one from
the public spoke at the ARB meeting+
Tree Proseryatign
'nle ARB recoamended that measures be taken to preserve Tree #28
in its present location and as many other trees in the general
viCinity as possible. This may involve realigning the box
culvert in this location to save trees on the east side of the
box cuJ.vert in Stage A. The Sc\"WD is .:urrently studying the
possibility of realigning t.he box culvert in this location. At
the City Council meeting, the SCVWD will be prepared to discuss
the feasibility of realigning the box culvert_
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Matagero Creek~~ Surface Material and R3iling Height
As discussed in the attached Planning Commission staff report. it
was recotrmenc1.ed that the bridge surface material be changed to
COkcrete for improved maintenance and to provide a better surface
for bicycles. The Planning Commission discussed ~his issue and
deferred it to the ARB~ Acknowledging the superior maintenance
qualities of concrete and the bicyclists' preference, the.~
thought that the aesthetic a~vantages of a wood bridge surface
would be of greater cOtZl'DUDity value and more consistent with the
character of BarrOD P3rk. The ARB also recommended that the
bridge be designed to allow the surface to breathe and dry out.
The Beard further recommended that the height of the bridge
railiog shall be 3 feet. 9 inches, as proposed by the SCVWD. For
safety reasons, staff had reconmended t,hat the height of the
railing be increased to 4.5 feet (this is the minimum recommended
height in CALn~.NS Kigbway Design Manual). The Board felt that a
3-foot. 9-inch high railing would provide adequate safety,
because that is approximately the height of the existing railing;
anci there have been no reported safety problems.
Staff has surveyed the railing height on nine bicycle/pedestrian
bridges in Palo Alto. Of these l only the Duncan Place bridge and
the subject Bel Park bridge at Matadero are ~der 5 feet in
height. Railings of all the other bridges are either 5 feet or 6
feet high and are a combination of eolid wood and open vertical
rails, or open wood or prefabricated steel rail~ Even the
railing on the Bol Park Bike Bridge over the Barron Park sediment
basin is 6 feet. 3 inches high. The Transportation Division
recommends that the railing height be increased to 4.5 feet
C9netruction Vehicle and Worker Parkipg
The Board added a condition requiring that temporary parking for
construction vehicles and workers be limited to three or four
specifiC areas that are built for that purpose (e.g., with
gravel) and that t~~se areas be restored afterward to the same
standards as the remainder of the site, and that cons~ruction
worker parking not be allowed outside of those areas. Following
the ARB meeting, t.he SCVWD bas expressed concern regarding the
practicality of enforcing this condition and w~~ld like to
further discuss the condition at the City Council meeting.
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ANAI,YSIS
The attached Grant of Easement (Exh~it A to the Resolution) will
convey to the S~D the necessary right-of-way fer flood control
management and/or sto~ drainage purposes. and the right to
install, operate, maintain and repair associated improvements and
facilities. Tbe Grant of Basement requires that the design.
mate~ialB, location and extent of work he subject to the review
and approval of the City's Director of Public Works. There are
ex~sting City utilities ~ithin the easement area; ~~ under the
Grant of Easement, tbe City reserves the right to maintain,
operate~ repair, r~~ or replace ~ly existing facilities which
are located within the easement area. Any required relocation of
these facilities will be at the sole c~st and expense of the
SCVlm.
Mitigatipn Mpnitpring prpgrgm
Attached is a condition and mitigation monitoring program for the
proposed proje~t. Tbe adoption of a ttitigation monitoring
program is required by AB 31S0 {section ~1081.Q of the California
Public Resources Code). The pu~se of the monitoring program is
to assure that tbe mitigation measures recommended in the
Negative Declaration and adopted by the City are i~ fact
i~lemented. For each mitigation measure recoumended in the
Negative Declaration~ this program:
• Identifies the party responsible for implementation;
• Describes the action to be taken by that party; and.
• Identifies the target date for completion of the action
described.
f'INQINGS
The findings at the site and design application recommended by
the Planning Commission and Architectural Revi~w Board in support
of the prqposal are as follows:
1. That the project~ as conditioned, will not have any
significant environmental impacts, in that measures
have been incorporated into tbe proj ect to mi..n.imize the
impacts on the n,a,tural environment along Barron Creek
and Matadero Creek, and the construction period impacts
have be'2I1 reduced;
2. The project design, aB conditioned, will be orderly,
harmonious, and compatible with existing or potential
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PRI QR TO MARC"d 1 ST
l. The upper one-third of Tree #662 on Plan Sheet 9 (i_e. the
plans entitled ~Matadero Creek -Phase v· prepared by the
santa Clara Valley Water District dated December a, 1993)
shall be topped by the City of Palo Alto prior to March 1st.
If it is determined that Tree #231 is a potential nesting
site by tbe City Arborist in consultation with a wildlife
biologist, the upper one~third of that tree ehall also be
topped by March 1st.
PRIOR TO APYDTISING THE PROJjCT POR BIDS
2. The SCVJiID shall revise the project pla..~s and specifications
to allo~ not more than ~O,OOO cubic yards of off-haul soil
from Stages A and B (the revised plans and specifications
shall be submitted to the City or Palo ~to Planning
Division for re\"'iew and approval).
3. The SCVWD sbal.~ revise the project plans and specifications
to pr~Berve Tree 128 in its present location and as many
other trees in the general vicini ty as poss ibl e. (The
revised plSllS and speci£.i.cat:ioDs shall be submitted to the
City of Palo Alto Public Works Brlgineering Division and
Planning Division for review and approval).
4. The SCllftlD shal.l. revise rbe project plans and specifications
to ensure that the Ma~adero creek bridge surface maceriAl
breathes, so it will adequately dry out after rainy periods
(revised plans and specifications sb.a11 be sul:mitted to t:l1e
City of Palo AJto Public Works Engineering Division and
Planning Division :for re¥iew and approval}.
S. The SCVND shaJl revise tbe project plans and specifications
to li.mjt parking Eol." construction vehicles and workers to
certain areas that: are built for t1:Iat pu.-pose. Following
COllstructio.o, those areas s..~l be res Cored to the same
standards as tbe remainder of the S3 te (tlle revised. pl~s
and specifications shall be submitted to the City of Palo
AJto Public HOrks EDginee~ing Division and Planning Division
for reviev and approval) _
6. The SCVWD shall incorporate language into the project
specifications requiring the con,tractor to develop and
implement a temporaxy Brosion and Sediment Control Plan
(BSCP} _ Tbe ESCP shall be submitted for review and approval
(within one week of receipt) ~y the City of Palo ~to Public
Works Bngineering Division. Prior to submittal to the City.
the ESCP shall be revi ewed and approved by th$ SCVWO _ The
ES~ shall describe existing Boil conditions and the
potential for erosion, proposed soil stabilization and
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uses of adjoining prcp€rty. in that the proposed
impr~,ements will be similar to other improvements in
the area, and more extensive flood control improvements
(e.g.~ concrete channelization of the creeks) which
could have more significant irnpacts on the natural
environment were avoided;
3. The proje~t. as conditioned, will maintain de~irability
of investment in the same or adjacent areas, in that
the required on-site improv~ments, revegetation, and
conatruction standards governed by the current codes
wi~l assure flood control and mitigation measures that
will maintain the current wildlife and ae9thetic value
of the park, and 'Will improve surrounding property
values protecting approximately 300 bomes in Barron
Park from being flooded by a 100 year flood;
c. Tbe proposed design. ae conditioned r Observes Bound
prinCiples of environmental design and ecological
~ance, ir. that meaaures which have been incorporated
into the project design will help to minimize phy~ical
impacts of development;
S. The proposed improvement:.B~ a8 conditioned, will be in
accord with the Palo ~to Comprehensive Plan, in that
the proposed improvements conform with the following
policies and programs of the Environmental Resources
Element: Policy 1 to minimize the effects of water
runoff; and Program :2 to require replanting where
vegetation bas been removed.
COliI)ITIOHS
The tollowLn9 conditions of the site and design application are
recommended by the Planning Commission and Architeceural Review
Board i.D support of the proposal. Those conditions which are
marked with an asterisk and bold were modified or added since the
Planning commission and Architectural Review Board meetiDgs~
pur~t to their direction to work further with the 5arron Park
neighborhood and SCVWD on the traffic control plan for
construction.
Contrary to the recommendation of the Planning Commission and
Architectural Review Board, the Transporta~ion Division
rec:ovmencJs that the wording in condition #15 recOOIlIending a
bridge railing of at least 4-6-in height be retained.
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7.
sediment control practices. The ESCP shall emphasize
preserving existing vegetation ~d th~ constr~ction areas
shall be revegetated as soon as fea6~9. At a minimum j
soil stabilization practices shall be in place between
OCtober lS and April 15~ or when there is flow present in
the creeks~
The SCVWD shall require the contractor to implement the
following (thesE measures shall be incorporated into the
project plans and specifications and shall be submitted to
the City of Palo Alto Public Works Bngineering Division for
review and approval) :
a. In order to reduce dust levels during con&truction~
exposed earth surfaces shall be watered frequently,
with rec1aimed water, during the late morning and at
the end of the day, with frequeney of watering
increasing on windy days. Spillage resulting from
hauling operations along or across any public or
private property shall be removed i1!ll1ediately at the
expense of the contractor. Dose nuisances originating
from the construction operations shall be controlled at
the contractor's expense~ The SCVWD project inspector
and the City of Palo Alto Public Works Department shall
monitor ehe contractor's dust control operations.
*b. The contractor shall c~ly with the requirements ot
the Palo ~to Noise Ordinance~ Construction work ...
tlZL_ .lI:liBe ahall not be conducted on Sundays or
holidays and shall be limited to the following hours,
Stages A & B: Monday -Friday: 8:00 am -5:30 pm'
Stage C, Monday-Friday: s:oo ill!! -6:00 pm
Stage D: Monday-Friday: s:oo am -8:00 pm
Saturday: ~:co am B: 00 pm
C. Mufflers and housings shall be provided on construction
vehicles and equipment.
d. Overfilling of trucks by the contractor shall be
prohibited.
e~ Any apills on City streets shall be cleaned up
immediately by the contract.or.
f. While it is being usad as a ccnstruction access route,
Matadero Avenue shall be swept with a mechanical
sweeper at the end of each working day by the
contractor.
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8. The SCVWD shall incorporate language into the project
specifications requiring the contractor to prepa::-e a
Stormwater ~ollution Prevention Plan :SWPPPl incorporating
best management pracrices (BMP'S) for stormwater pollution
prevention in all construction operations, in conformance
with the Santa Cla1:'a Valley Nonpoint Source Pollution
Control Program and State of California Water Resources
control aoard~ Tbese measures sball be included in the
project specifications. The SWPPP shall be submdtted for
review and approval (within one week of receipt} by the City
of Palo Alto Public Works Bngi~eering Division. Prior to
submi~tal to toe City, the SWPPP shall be reviewed and
approved by the SCVWD. The SC'VWD shall comply with ,,11
provisions of the State of california's General Permit for
discharge of stormwater associated with construction
activities and shall provide a copy of the Notice of Intent
(NOI} to the City of Palo Alto, Director of Public Works.
9. The fol~owi.ng measures shall be incorporated into a detailed
planting and irrigation plan which shall be submitted to the
City of Palo ~to Planning Division for review and approval.
Minor modifications to the plan may be made during
installation, subject to the Planning Division's approval.
a. All existing trees which are removed &hall be replaced
with Dew native trees on a 3:1 replacement ratio for
trees over six inches in diameter, and on a 1: 1
replacement ratio for trees under six inches in
diameter. The new trees shall be five gallon cont.ainer
stOCk and shall be planted in the Vicinity of the
original tree, unless the City Arbarist determines that
an alternative location is appropriate~
b. Plan Sheet 9 shall be revised to include baff~e& and a
low-flow channel invert or grouted. rock in the stream
channel to prevent creating a velocity barrier to fish
migration.
c~ Plan Sheet TA-S shall be revised to show replacement
plantings around the entire perimeter of the lower
sediment basin (i.e., southern portion of the basin) ~
d. Plan Sheet TA-9 shall be revised to include berbaceous
p~ants (e.g., plugs of native grasses) in the openings
of the gabions (midbank to upperbankl along the
proposed confluence structure. The Planning Division.
in consultation with a habitat restoration speCialist,
shall develop a herbaceous plant. mix to be included in
the final design.
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e. Plan ShEet PL-3 shall be revised to continue
hydro seeding southward to ~he end of the project area
~ the vicinity of Gunn High School (i.e .. currently,
the proposed southern limit of hydroaeeding is at
Matadero Creek) .
f. Tbe hydroseed mix shall consist of native wildf~ower
and native grass species and shall be subject to review
and approval by the City of Palo ~to Planning
Division l in consultation with a revegetation
specialist. It is recommended that:
• The seeding rates per acre should be increased as
follows! purple stipa --f~ 1 Lb. to 6 Lbs.;
blue rye --from" Lbs. to 5 Lbs.; and
• The number of proposed. .species should be increased
(po~ential additions include California brome at 5
!be. per acre, and sticky monkeyflower at :2 Lbs.
per acre) .
g. on Plan Sheet TA-8, the following species shall be
added to the shrub layer: California blackberry, wild
rose, blue elderberry, and red flowering currant.
h. On Plan Sheet TA-8. the proposed white aJ.der trees
shall be changed to oaks 'coast: live or valley oak) or
sycamore trees.
1. On Plan Sheet TA-g. the following species shall be
added to the shrub layer: vila rose, California hazel
and red flowe!:ing cu--rant.
j. On Plan Sheet TA-.9, at least half of the replacement
willows shall_he yellow willow.
10. The SCVWD shall require the contractor to implement the
following (theae measures s~l be incorporated into the
project plans and specifications and shall be submitted to
the City of Palo Alto Planning Division for review and
approval) ,
a. If any existing shrubs are removed during construction
which are not designated tor removal on the plans. they
shall be replaced by the contractor with readily
available native shrubs on a 1:1 ratio. The new shrubs
shall be native species a.ru1 one gallon in size and
pl&D.ted in the vicinity of the original shrub ~ unless
the SCVWD, in consultation with the, City Arborist,
determines that an alternative location is appropriate.
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b. The fcllcwing requirements shall apply to the trees to
be transplanted:
• Only trees in vigorous health and between the
sizes of 4-10 inches in diameter may be
transplanted;
• Watering basins ~hall be large enough to encompass
the dripline of the tree (generally 36 inches in
diameter);
• A revegetation specialist or certifie~ arborist
sball ~upervise all tree salvage and r~plantiDg
activities;
• &~ring the three year maintenance period~ the
contractor shall be responsible for watering,
pruning. and treating the trees for pest or
disease problems;
• If any transplanted trees die within the three
year maintenance period, they shall be replaced at
a 3:1 ratio with new native tree species in the
viCinity of the transplanted tree. Tbe new trees
shall be five gallon container stock and planted
in the vicinity of the original tree, ~ess the
SCVWD, in consultation witb the City Arborist,
determines that an al ternati ve location is need~ ~
• ~l replacement plantings s~l be native species.
C ~ The planting holes .for new trees and shrubs sha1l be
excavated. to a depth equal to twice the size of the
root ball of the plant. Slow-release fertilizer shall
be placed in the bottom of each planting hole. The
holes shall be back-filled with native soil from the
project area. A layer of coarse =ulch shall be placed
around the base of the plants to conserve moisture and
control weeds.
d. Watering basins a~ new and transplanted plants
shall extend far enough to encompass the dripline of
the canqpy of the tree or shrub. If the ground is
sloping, a 4-inch high, band-compacted earth berm shaU
be coutructed along the forward edge ot the planting
terrace. If the ground is level, a 4-inch high~ haDd
compacted earth berm 36 inches in diameter shall be
constructed around tbe plant hole.
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e. Trees to be retained which are located within or
adjacent to the zone of disturbance shall ~ protected
throughout the construction phase-by the following
measures:
• Temporary plastic construction fencing that is
secured with metal T-postB shall be installed
around the trees to be retained. The fencing
shall be six teet in height ~~ installed at the
tree's dripline. In cases where construction
access is required, the fencing may be placed
clcser to the trunk. The placement and adequacy
of the protective fencing shall be periodically
inspected by the City's A~borist and the SCVWD
inspector .
• Where construction. access is required under the
dripline of trees to be retained, a gravel cushion
of 6 inches in depth shall be provided.
f. For trees with branches or roots which overhang into
the conBtruction zone, lower branches and exposed roots
shall be pruned to provide clearance for the movement
and operation of construction equipment. Pruning shall
consist of clean cuts by a qualified tree surgeon
possessing a C-27 Landscape Contractor'S License. All
pruning shall be subject to review and approval by the
City Arboriat.
g~ A revegetation maintenance program tor maintaining the
inst&.l~ed container stock and transplanted trees shall
be submitted tor review and approval by the City
Arborist. The maintenance program shall be for three
years followiog completion of the project and shall
include provisions for the .following: maintenance of
watering basins, weed control. irrigation .. pruning and
thinning .. plane protection, supplemental planting, and
debri 8 removal.
b. During the tbzee year maintenance period, the frequency
and duration dt irrigation shall be monitored by a
re\~tation apecialist/atborist. Irrigation equipment
sbal.l tie imJpected, repaired# and replaced as required
to eDsu...-e proper operatiOJl ard adequate plant growth.
i. Plants that do not survive during tbe three year
maintenance period shall be replanted under the
supervision of the SCVWC' s inspector. The following
survival rates shall be required~ 90l survival rate
for new trees and Sh.~S, ~OO, survival rate tor
transplanted trees. and 60' survival rate tor
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herbaceolls cover. If at any time during the thre~ year
maintenance period, the pezc~nt survival falls below
the remedial rate, plantings will· be necessary.
~l. The SCVWD shall require the contractor to implement the
following (these measureB shall be incorporated into the
p~oject plans and specifications and shall be submitted to
the City of Palo Alto Planning Division for review ~~d
approval) ,
a. Each of the extraction veIl laterals shall be tied to a
buried support (e.g., steel I-beams) apanning the ~idth
of the box culvert excavation. The SCVWIJI s contractor
shall excavate below tbe structurally supported
pipelines while the laterals remain in service. The
support will also provide a measure of physical
protection to the exposed pipelines.
b. We~ls BP-46A/46B and BP-62A will be ~hut down prior to
the excavation ot their respective laterals. This
disruption shall last no more than one week at each
location in order to minimize the amount of extracted
groundwater that could be released in the event of
pipeline damage ~ Well operations will resume once the
excavation for the box culvert is completed.
c. The lateral and its supporting structure at Well BP-58
shall be removed while the SCVWD's contract'-or pours
concrete for the roof of the box culvert. Disruption
of groundwater extraction ae that well shall last no
longer than one month. Tbe lateral shall be replaced
once the box culvert concrete is cured.
d. During construction of the Phase V project, all wells
withi& the project area shall be proteceed using
techniques such as sheet piling, installation of
traffic bollards, ut',ility boxes, and heavy steel trench
plate. Tbe act~ techniques used to protect tbe wells
during construction shall be approved by the California
Department of Toxic Substances Control prior to the
commencement of work on the Phase V project.
e. Air 'lIOnitoring for worker's health and safety shall be
conducted by the SC\1'WD's contractor in accordance with
the contractorls Health and Safety Plan for ~he
project. The project Health and Safety Plan shall be
reviewed and approved by a Certified Industrial
Hygienist retained by the contractor. If preexisting
contamination is encountered during construction, the
contractor shall immediately suspend all operations and
notify the SCVWD. City of Palo Alto Public Works
CMR,169,94
p,\ __ \mot.wInc.CII::'
2/17/94
Page 14
,-
-~:/ .... :
~----.........:.---
Department and California Department of Toxic
Substances Control.
-.-. '. '.--.~~,)
t. Sho~ld previously undetected soil contamination be
encountered during const~ction. the Health and Safety
Plan prepared tor the site (which shall be reviewed and
approved by a Certified Industrial Hygienist) shall be
amended to addresB the specific potential ha~a~ds to
workers and any others who will be involved in the
construction that could result from exposure to the
detected contaminant's).
g. The Scvw.o·s contractor shall provide the necessary
personal protective equipment for the workers during
project construction. Personal protective equipment
shali be in accordance with the requirements of the
project Health and Safety Plan~ The Health and Safety
Plan shall be re~riewed, and approved by the contractor's
Certified Industrial Hygienist.
12. The SCVWD shall require the contractor to implement the
following (these measures shall be incorporated into the
project plans and specifications and shall be submdtted to
the City of Palo Alto Public Works Engineering Division acd
Transportation Division for review and approval):
a. upon completion of the flood control improvements
within Stages A and B, restoration of the bicycle path
and revegetation within these areas shall be commenced
immediately. Stage A sball be reopened to the public
as soon as the bicycle path is completed and accepted
by the SCVliD and the City" (revegetation work may
continue after the path is reopened). Stage B shall be
reopened to the public as soon as tbe bicycle path and
revegetation work are completed and accepted by the
SCVWD and the City. The remaining stages of the
project shall be reopened to tbe public as soon as the
area is completed and accepted by the SCVWO for flood
control purposes and the City for public use purposes.
b. Standard construction a.rea signs. subject to review and
approval of the City of Palo Alto Transportation
Division, shall be posted along Matatiero Avenue ..
Miranda and other streets, as necesBary~ to warn the
public of the ongoing construction traffic.
c. No contractor worker parking shall be permitted on City
streets. The City will limit OD-street parking on
Matadero Avenue during construct.ion hours as needed for
traffic safety reasons.
CMR:J.69 :94
p,'~,cm:
2/17/94
page 1.5
d. No storage of equipment or waterials shall b~ permitted
on City streets.
e. Eroergency vehicle access and access to all residences
along Matadero Avenue and other stree~s affected by the
project shall be maintained at all times.
13. Tne SCVWD shall require the contractor to implement the
following regarding the proposed Matadero Avenue
construction access for Stages A and B (these measures shall
be incorpor~ted into the project plans and specifications
'and shall be sublnit.ted. to the City of Palo Alto Public Works
Engineering Division for review ~~ approval):
a. Use of Matadero Avenue &hall be limited to a period not
to exceed six consecutive calendar months.
b4 Use of Matadero Avenue shall be limited to the hours cf
8:30 a.m. to 5:30 p.m., Monday through Friday
(excluding holidays) .
c. Construction traffic shall be limited to trucks with no
more chan five axles .
... d ~ Use of Ma tadero A venue sha 11 be 1 imi 'ted to eructs
carrying up to 10,000 cy ot excavated EMterials Lram
Stages A &: B eravel.i.!::lg eastboUDd from the COllstruct1on
site eo 81 Camino Real. No other coDstruceiOZl rela'ted
traffic shall be pezmitted to use Matadero Aveoue as a
coZls"truction access rollte~
-e. Const~ction traffic on Matadero Avenue shall be
subject to a 20 mph construction z-one speed limit.
riDe. oE ~100 per v.!o~at:i= abll be ...... ed by
Dlatrict Eoz: &cy cfocvJoeDted v.!olaU"" oE tlIe 20 mp/I
c:oa.tzuctiOZl .-eme ~ed 11.a1 t by C~truCt1OD trucka CD
.Katadero.
f. A fu11-time flagger shall be stationed at Matadero
Avenue where it crosses tbe construction site to
control traffic, A flagger shall also be stationed at
the intersection of Matadero Avenue/Josina Avenue
between 1:30 p~m to 3;30 p.m. on scbool days to aesist
school chi1dreD in crossing Matadero Avenue.
• 2'11. Elaggera provided OZI Mat«dero at rtpp&w1.a~/Jo.1.Da
aDd at LagwHI abl~ be trataed aDd ~l ... ced 11} tbo
proper t_tquea tor tlawi.z>g ..,d tratttc coatrol.
2'he tlawera abll coorply nCb. Calt ...... a.ADdard. Ear
COlJtrol o~ tr.~~ic t:b..rougla IIJ'Qr.k .OD" •• de.cr1bed! .1.J1
tbe Cooltr.". 2'ratt!c: .... u.al (CbaJ>ter 5-07). rt ~l.wer
CMR:169:94
p,\~ .....
2/17/94
Page 16
1a not per~Or.aiDg hi~ dueiB~ to the .ati.~.ctjoa oE ~e
C~t'Y o-L " .. l.o Alto PolJ.ce D.~rt.me.ct, the contractor
&hall be required to ~eplace tbe ~l.gger w1tb • police
o~E1cer •
• g. SCVfItD .b .. l1 employ .. aobJ.le IJJHNd .8lO.nitoriag ~ada.r
tn.flar .alODg Xat:adero Avenue during the ~r1.od o~
laean •• t true.t act.fn ty along .lr&tadero A'V8I2:u. ••
• h~ Construction traffic shall be controlled such that oaly
01:1. truck shall be ne eli! !:lolte are permitted foe ~a88 eae~
eehe~ on Matadero Avenue at any given time. Prior to
constr.lction, a traffic control plan shall De submitted
for review and approval by the City of Palo Alto
Transportation Division which sr~ll be prepared in
cansulriition with the neighbors. The plan shall assure
tra£fic safety, describe the methodology for ensuring
that only one truck uses Matadero Avenue at any given
time l .,1 .t '01 ae ... :lclH' ... :f.e:l:1aIllH,~
This requirement shall be monitored by the SC1/lID's project
.inspector.
~4~ The SCVWD shall require the contractor to i~lement the
following (these measures shall be incorp.:Jrated into the
project plans and specifications and shall be .ubmitted to
the City of Palo Alto Public Works Engineering Division fer
review and approval) :
a ~ The COlltractor shall iDl'nediately repair any damages or
potholes caused by construction traffic on any City
streets in accordance with City of Pa10 A1to
construction standards~
b. Matadero Avenue shall be swept with a mechanical
sweeper at the end of each working day. Potholes
resulticg from the construction traffic on Matadero
Avenue shall be promptly repaired by the contractor.
CMR,169 ,94
",\--~,-
2/17/94
page 17
!
/
'-.' .
• Prior to "sbig lUt.d.ro AveJlul!' ..... CO.:lstruction ac:c:es.
route, l:.b.. SCVJfD project: inspector, Cbe Sc:vwD'.
C'ODtractor, ADd tb:,. CJ. ty' • .Public:-WOrn Inspector .all
:Lc.~ct t.b. street &l2d doCWae.c:t 1. t:s exist11lg cond.i t.i.Q!2.
fbe SCVND ~ll provide video dOCYmaatatiaa o~ ebe
.treet: ~
• At the cODclv.-jOJl o~ tbe use of Jlatadero Avaaue a. oS
cOD.tructiOfl ace... rou ta, tbe SC'VND .1llBpector, the
SCVWD'. coatractor, aud tbe City'. ~1c WOrka
ZDs"pector sball reinspect tile .. treet ADd' detenatDe t.b:e
d.a.IIage, if aay, cau.ed by the cOIItractor'. operaf:1o.c ••
The SCVIIll G&ll be respoZlaibJ e ~or per ~oz:mJ.tJg all
correct1ve ... sur •• , incl~d1ng ~. ~ailure re,pa1.r,
.ur~.c. tr •• eaent or r •• ~~.c~g, required to re.tor.
tlIe tr.~f1c lo.d.tng capac-1ty and' surLace eO.lu:Utio.c of
ICatade.ro A:VWZIue to its pre-Foject Co.ZU:UtjCD~
c. All work within the public right-at-way to be
maintained by the City (City utility relocations.
bicycle path improvementsi landscaping, etc.) shall be
subject to inspection and approval by the Public Works
Inspector and/or Utilities Department inspectors. The
S~'s contractor 8~l obtain a street ~ning permit
from the City of Palo Alto Public Works Engineering
Divis;i.Dn (the fee will be waived). The SCVWD's
cont.ractor shall also name the City of Palo Alto as an
additional insured on their liability insurance policy.
15. Be~ail e 17 eft Plan Saeee 17 .~ll ee ~e.i8e~ ee ,PBJide a
eeserete ~pid!e ~iaee .. ~e~ial 1 eris!e ~ail~B! .~ leaB~
If 6' ~i~~. te ~ke aseiafaetiee sf t~e ~.p.~.a~ieB
&i 4"!i a it 8ft &Bot P'tIlsl i e WerlE! Bft!Jiae el'ia! a i • i. i 8ft.
16. Depending on the resillt of hydraulic studies, the SCTnID
shall COllsider installing security meast:.res to prevent:
cll.ildren and wildlife from entering the undergroWld box
culvert. To ensure that the security measures are not a
barrier to wildlife, the design of the security measures
sha11 be subject to review by a wildlife biologist.
pRYOR TO <:9HSTR.PCTIQH
17. Prior to construction, the SCVWD shall provide the City wit.h
video documentation of all existing veget~tion within the
proj ect area.
OORlNG CQNSTJWCTIOW
18. The SC\'WD sha.l1 continue implementing a public outreach
program to keep area residents updated on the construction
CMR,169:94 2/17/94
p,\~_~.__ Page ~B
>'~~ .. -.
i ~
schedule and the use of Matadl::!ro Avenue as a constructior..
access route.
13~ The SCVWD and the contractor shall comply with the
recr.J.i-rements of Appendix 11: of the Guidelines to the
California Environmental Quality Act, including the
following (these measures shall bQ incorporated into the
project plans and specifications and shall be submitted to
the City of Palo Alto Planning Di·.;ision for review and
approval prior to advertising the project for bidsJ:
a. Upon unearthing any archaeological artifacts or a
burial site as evidenced by human skeletal remains,
work shall be suspended and the person making such
discovery shall i~iately notjfy the SCVWD. City of
Palo Alto Planning Department and the project
archeologist~
b. If a burial site is ~earthed. the County Coroner shall
be nocified immediate1y. If the County Coroner
determines that the remains are Native American, the
Coroner will contact the California Native American
Heritage Commission and the County Coordinator of
Indian Affairs. No further disturbance of the site may
be made except as authorized tr.l the County Coordinator
of !Ddian Affairs.
7'8BB'J.' HaRS mTJp!mG IH$T!TJ ,TrOti' CP PllmsCAPma
20. During the three year maintenance period.
~nitoring shall be conducted by the SCVWO in
conjunction with a landscape architect and habitat
restoration specialist. Tbe monitoring shall
include reconnai8~ance·level surveys, quantitative
sampling, photo ~ntationt and annual
monitoring reports that document the results of
the monitoring, maintenanc~. and revegetation
acti vi ties. The annual reports shall recoumend
remedial actions to be undertaken if the project
is not meeting performance criteria. The reports
shall be submitted for review aDd approval to the
City of palo Alto Planning Division.
roW m Flf'TBBN Y"Bi!PS POLLQWoo PlST!:I,I,!TION OP T.lOOjscaplw
21. Long-term monitoring (i.e., from four to fifteen yearB after
planting) sball be conducted by the City of Palo Alto.
Long~term performance criteria shall be established by the
City Arborist and shall address the follOWing: average tree
beight (by speCies), percent canopy cover trees, pereent
canopy cover shrubs, percent of invasive non· native plant
CMR,169,94 2/17/94
p,\~.-Page 19
-,..',.'
...::---.
species. and habitat value in te~~ of vildli!e use. Long
te~ monito~ing s~~ll be conducted at three-year intervals
by a ~lalitied habitat restoration specialist. The res~lts
of reconnaissance-level surveys, photo documentation, and
remedial measures (if applicable) shall be included in
monitoring reports.
RBQ?MMRNQhTIQN
Staff recommends that the City Council, based on the !indin9B and
cC"nditions abo ... ·e, adopt the attached Negative Declaration~
Mitigation Monitoring Frogram, Park Improvement Ordi~~e and
Resolution Authorizing the Mayor to Execute the Grant Of Basement
~Exhibit A to the Resolution), and approve the site and design
application.
Respectf~ly submitted,
~~
ROBBRT SCIlUBBRT
Planner
City Manager
Attachment.s:
Bnvironmental Impact Assessment
Hi t igat ion Monitoring program
Park Improvement Ordina.nce
XBNIIE'I'I! R" SCHREIBER
Director of Planning and
Community Environment
~u..~r
GLENN ROBERTS
Director of Public Norks
Resolution Authorizing the ~.ayor to Rxecute the Gra...,t of Basement
Truck Traffic Tables -M&tadero creek Phase V Froject
Proposed Traffic Safety Plan
1/21/94 Planning Commission staff report (Council Members Only)
Minutes of 1/26/94 Planning Coamission Meeting (Council Members
Only)
Minutes of 2/3/~4 ARB meeting (Council Members Only)
COII1II8Ilts from the Public (Council Men>bers Only)
Plans (Council Members Only)
CNR:U9:94
.:\--~.--
2/1.7/~4
Page 20
'"
cc:
Planning Commission
Architectural Review Board
Nai Bsueh, Santa Clara Valley Water District
Paula Kakimoto, Stanford Management Company
Al Wanger, Dept. of Toxic Substances Control
David Marrs, Brown and Caldwell
Veterans ~~nistration
Kachy Berzing. Hewlett Packard Company
Dr. Inge Barding-Barlow
Linda Bl.kind
Arthur Bayce
John Jnynt
Will Beckett, President, Barron Park Association
Douglas Moran, 790 Hatadero Avenue
Dan Parley, 712 Matadero A~~nue
Rakesh Agarwal, 709 Matadero Avenue
Thelma Wolffers, 904 Matadero Court
Raul Serrano, 827 Chimalus Dri va
Kathy Olmstead, 906 Matadero Court
Lisa Friedman, 930 Roble Ridge
Douglas Graham, 984 Ilima Way
Paul I!dwards, 4047 Manzana Lane
Roy Stark, 4000 Bl. Cerrito Road
Margery Benedict, 797 Matadero Avenue
Bob Moss, 4010 Orme
iJiane-Wren and Jean Wren,. 800 Matadero Avenue
Jobn R. Pierce, 4008 Xl Cerrito Road
Flora Chu, 3509 Laguna Court
Marjori'!t Hans, 703 Josina Avenue
Brenda Woodward-Pierce, 4008 £1 ce~7ito Road
Christian Kalar, 3728 Laguna Avenue
Clara Sharpless, 777 La Para
George Bagdon, Public 'Norks BDgineering
Joe Teresi, Public Works Engineering
Gayle Likens, Transportation
Doris Maez J Bnvir01lmental
Dave Sandage, City Arbcrist
Martha Miller, Real Estate
Don Piana, Parks and Recreation
am, 1.69 dl'
.''-~.J:IR
~.' '".
2/1.1/94
Page 21
Environmental Documents -City of Palo Alto
Eh-'{IRQNMENJ'AL bSSESSMEN1.'
Project Description/Title: MaLadero Creek phase V Star:~
Channel to A..-"stradero Road -The Santa Clara Valley Water District
proposes to cOnstruct 4 ZQO feet of underground b)yass culvert. a
confluence structure at Matadero Creek. a r.ew bridge across
Matadero Creek 'which will replace an existing bridge) and D~ify
two existing sediment basins alQrer Barren Creek The irnprqvpments
are designed tp divert a major portion of the one percenc flows
fram both Mgtadero and Barron Creeks tg Matadehg Creek dOwnstream
of iii Carp.i[r.o Real
Location/Address: The project ex~ends along a bicycle path from
Ya,rian Msociates (611 Hansen Way) to Hpnpr M GuM High School
(780 Arastaderg Road) in Pal0---Alt0. The project area includes
apPXQximate1y IBO feet of M§taderg Creek near the exiBting bridge
as well as two existing sediment basins on the east and west sides
of the "iating bike path. near GuM High School.
Sponsoring Agency/Applicant: Santa Clara Valley Water District
Address and Telephone of Applicant: Nai Hsueh, 575Q Almaden
Rxpree§w&y. San Jose, CA 95118-3686 '408> 927-07+0
Application for: Site and Design applicaticn Park ImprOVement
Qrdlnap,e and granting of a 9@rm'pept storm dra~n easement and a
temporary construction access easement
Zoning at Project Location: ~
NOTICE Of DE'TRRMINAIIQN
Pee Receipt No.: H.LA
Based upon revie~ of the project files. the undersigned member of
the Planning Department has concluded:
IX!Negatiye . Pec] aration.: The project has no significant
environmental impact. No Environmental Impact Report is required.
The reasons for a Negative Declaration are:
in t.he attached initial study. A h@Cord of project aGtion is
available tor review at thg Pal 0 Alto Planning Department, located
on the 5th floor of City Hall. 250 Hamilton AvemJ9, Palg Alto, rA
lll.Ql..
1:IThe project majt have a significant environmental impact. An
Environmental Impact R~port will be prepared.
Planning Department Official, 1?A;:t 5~
Planning Director.:
The proj.,ct bas been approved .Date ,
The project haa been denied. Date ,
File No.: "u-RIb-;6
ENiIRONKENTAl IlOCllKENTS • PALO ALTO
INITIAl STUDY'·'
l.Projeet Title/Address: Mitaderp Creek, phase V -Stanforg Channe1 to
Arastradctg Road. The project ext4!"ods along a b1cyc:1e pat~ from Varian
ASSQ;litfS (611 Hansen Way) to He~ry M. Gun" High School 1780 Arastadero Road!.
iI.Project Description: See att!ched proiect description.
IV. Environmental Impact Check.list ,Explanation of all "yes" answers are-in
S&etlon Y)
1. lldh· Wil1 tile proposal resu1t in: ill !!Arn: H2
<. Unstable earth conditions or changes .L !n geologic substructures?
b. Disruptions, displacements, compac-
tion or overcover1ng of the 50i) .L
c. Change In topography Dr ground
surface relief feature!? .L
d. The destruction, covering or modi-
fication Df any unique geDloglc or
Physical features? .L
e. Any increase 1n wind Dr water erosion
of soils, either on Dr off the site? -'--
f. Exposure of people or property to
geologic hazards s~c" as earthquakes,
landslides, mudslides, ground fail~re
or similar hazards? .L
g. Changes ;~ s11tatio~t deposition, or
erosiDn which eoy modify the channel
of a river Dr the bed of a b~ or
inlet? -'--
• Adapted from Appendix I, Ca1ifornia Guidelines for Impl .... ntatiDn of
CEQA, December 14, 1976 .
.... Updated May 1982, June 1983
z.
3.
4.
AJ.!. Will th2 proposal result in: ill
I. Substl~tial air emissions O~ de-
ter1oration of a~bient air quality? 1-
b. The cr~ation of objectionable odors?
c. ~lt&rltion of air movement, moisture
t~rature, Dr any change in cli-
mate, either locally or regional?
I!ilir.. Will tne propos.l result In:
... Changes in absorption rates, drainage
patterns. Dr the rate and amo~nt of
surface water runoff? 1-
b. Alteraticms to the co'Urse or f1 ow of
fl oed .. aters? 1-
c. D1scharge into surfice vaters, or in
any alteration of surface water
quality, including but not 11.lted to
teaperature, dissolved oxygen or
turbidity?
d. Alteration of the ~irectio" or rate
of flow of ground .ater.?
•• Exposure of people Dr property to
"ater related hazards such as flood-
ing or tidal wa.e?
f. Change in the quantity of ground
water., either through direct
additions or withdrawals, or thrDugh
interceptions of an aqu'f~r by cuts
or exc.avat io",s?
ellD:t L ~ T~~ W;ll the proposal result in:
I. Change in tne diversity of spECies, or
number of any species of plants (in
cluding trees, shrubs) grlss, crops,
mlcroflora and aquatic pi ants}? 1-
b. Reduction of the numbers of any
unique, rare or endangered spec.ies
of plants?
c. Introduction of new species of
z
,-
,-. ,*,-J":
,.
plants into an area, or in i barrier
to the normal replenishment of
ill
eXisting species? .....L
d. ~eduction in acreage of any
agricultural crop?
5. Antmal Life. Will the proposal result in:
a. Cnango in the diversity of species,
or of any syecies of animals (birds,
land animals inc1ud1"9 reptiles,
fish and 5~el1fjsh, bentbic organisms,
insects or microfaunaj? ...!....
b. Reduction of tho numbers of any
unique, rare ar endangered spec.ies
of animal s? -L
c. IntrQd~ctiQn Df new spe~ies of
animals into an art~, or result in
a barrier to the migration Qr BOve·
ment of ani •• lsl -L
d. Deterioration in eXisting fish or
wildl ife habitat? ..!..
6. ~. Will the propos.l result in:
a. Increases 1n existing noise levels? -'-
b. Exp'OSGre of people to seye,.·e noise
leyel s? ...L
7. light and Glare. Vii] th! proposal
produce new light glare?
8. land Use. Will the pnJposal result in
a substantial alteration of the present
or planne~ land use Qf an area?
9. I:1ergyl]atyril Resourcts. Will the
proposal result In:
•. Use of ,ubst •• li.l imO"nts of fuel
or energy:
b. Substantial increa •• in demand upon
existing sources of energy, or
3
..!..
·
ill !!Am 1IQ
require the development of new
sources or energy? ...L
c. IncreasE in tne rate of use of any
naturil resources? ...L
d. Substantia' depleti~n of Iny nonre-
newable natura' resource? ...L
10. Bi~t Qf ~~al. noes the PTOpos.l
involve a risk of an explosion or the
release of hazardous substances (in-
cluding, but not li.ited to , oil,
pestiCides, chemicals or radjation) in
the event of an accident Dr ~pset1 ...L
I!. fGgyJltiQD£Hou;ijng·
a. Wil' the propos.l alter the locltion,
distribution, denSity, or growth Tate
of the human population of an lre~? ...L
1>. ViII the proposal effect existing
hous fng, or create i demaml for
additional housing? ...L
12. I[iD~RgttltjgD£~it'Y]AtigD·
propos a' result In,
Will the
a. G".eration of substanti.l addltiona'
vehicular moY~nt? ...L
b. Effects on existing parking f.cili-
ties, or demand for new parking? ...L
c. Alter~t1ons to presept patterns of
circulation or movement of people
and/or good.? ...L
d. Increase in traffic hazards to .. tor
vehicl •• , bicyclists or pede.trl.n.? ...L
13. fyb]j, St~j~ei· Will the propos.' ha.e
an effect upon, or result in I need for new
or altered govern~ntil services ;n any of
the following areas:
a. Fire protection? ...L
4
,.
ill MnE .till
b. Police protection? L
c. Schools? L
d. Parks or other recreational
fad 1 it ies?
e. Maintenance of public facilities,
1nduding roads? .X-
L Other governmental services? ..L
14. Will the prDposal result Utj]1l:it s .
need for new systems. or substantial
in ..
alterations to the following utilities~
a. Power or natural gas? -L
b. Comunications systems? L
c. Water? -L
d. Sewer or septic tank? -L
". Storm water drainage? ..L
f. Solid waste and disposal? L
15. f:tLlmin 1:tea11;b ~ Will the proposal ",suH
ir.:
a. Creation of any health hazard or
potential health hazard (excluding
""ntal health)? -L
b. Exposure of people to potential
health haz.rds? -L
16. ~itb!tLj'i· Will the propos.l result
in the obstruction ~f any scenic ~istil
or view open to the public, or will the
proposal result in the creatiQn of an
aesthetically offensiY~ site apen tc
pubic view? L
17. ~r£i:tjQIl. Will the proposal result
in an impact upon the qualIty or Quantity
5
.ill Mill /!Q .-
of existing recreational opportunities? ..L
18. '~ltYril B~~QYr~es.
•• Will the proposal result in tne
alteratfon of/or the de~truttion
of a prehistoric or h1storit
.rchaeological site? ....L..
b. Will the propesal result in ad-
verse physical or aesthetic effects
to a prehistoric or historic
building. ~tructure; ~r object? ....L..
c. Do.s tho proposal have the potenti.l
to Ciuse l physical c~ange whicn
WGu1d affect unique cultural v~'ues? ...L
d. Vill the proposal restrict existing
relfgious or sacred uses within the
potential Impact are.? ..L
19. Hinditg[~ EjDdjDg~ gf ~jgDjfj~iD'I.
a. Does the project havo the potential to
degrade the quality of the enviro_nt,
substantially reduce the habitat of •
fish or wildlife species, cau •• a fish
Dr wildlife population to drop below
s.lf-sustaining l ••• ls, threaten to
eliminate a plint ar animal co.awnity,
reduce t~e number or restrict the
range of I rare or endangered plant Qr
animal or eliminate important ox.-pl.s
of the major periods of C.lifornia
history o~ prehistory? ...!..
b. Does the project have the potenliol
to achieve shortateMl, to the dis a
~dY.ntage of lQng~term, environmental
go.l.? (A short·tere imp oct on the
environment is one which occurs in I
relatively brief, definitive period
of time while long-term impacts will
endure well into the future.) ...L
c. Does the pr<>ject ha.e implcts which
are individually limited, but
cumulatively considerable? (A pro-
ject may impact on two r~ ~~re
6
separate resourCES where the impact
on each resource is relatively
sma"I but where th~ ~ffect of the
total of those iMpacts on the
envlronment is s19r.1fl,a~t.)
d. Does the project have environmtntal
effects which will Ciuse s~bstantiil
adverse effects an human beings,
either directly or indirectly?
.'ill
Y. Explanation of ·yes· and -aaybe· anSwers in environmental checklist are
attached.
7
·-'--,
MATADBRO CREEK • PHASE V -ATTACHMENT TO INITIAL STT .. JD'i
1. Introduction
On April 19, ~98S, the Soard of Directo~s of the Santa Clara Valley
Water District (SCVWD) approved the Bngineer's Reporr and a
Negative Declaration (attached) for tbe Matadero and Barron Creeks
Flood Control Projecc which consists of the replacement of nine
bridges and 2,500 feet of concrete channel, addition of floodwal1s
along e, 000 feet of lower Matadero Creu, construction of 2,300
feet long underground high flow bypass box culvert and a 2,500-
foot-long underground diversion box culvert, and miscellaneous
erosion repairs ~~d access ramps in the upper reaches of Matadero
Creek near Foothill Expressway. Phases I-II! of the project have
been cOllstructed and Phase IV is currently being advertiSed for
construction. The Phase V improvett"lents are designed to divert a
major portion of the one percent flows from both Matadero and
Barron Creeks to Hatadero Creek downstream of B1 Camino R~al with
minimal disruption of the natural creek channels within Barron
Park.
Phase v of the Matadero and Barron Creeks Flood Control· Project is
located in a linear park (a portion of Bel Park in Falo ~to) and
City appro-...~l is required for a Park Improvement Ordinaoce~ a Site
and Design Application and both permanent and t~roporary easements.
Pursuant to Section ~5052(a) {2} of the CEQA Guidelines, the City of
Puo Alto bas assumed the role of Lead Agency for Phs.!! V of tbe
project~ ThiB document analyzes the environmental impacts of Phase
V of the Matadero and Barron creek" Flood Control Proj ect in
accordance witl1 CBQA requirements in light of new information
regarding Phase V which was Dot available at the time that the
Negative Declaration (attached) was prepared in OCtober :L987. Tbis
Negative Declaration does not repeat information~ impacts or
mitigation measures discussed in t!le previous Negative Declaration
(attacbed) .
II. Bnj~rpnmeptal Setting
The maj ori ty of Phase V of the Matadero and Barron Creeks F~ood
Control Project extends along an existing bike pat.h betwee..Tl
Stanford Channel and the Barron creek sediment: basins. Land uses
adjacent to the bike path include open space, single family homes.
the U. S. Veterans ~E1tratiOIl Hospital~ Gunn High School and
offi~e buildings. The project area also includes about 180 feet of
Matad.ero Creek on both sides of an existing bridge and two existing
sediment basins along Barron Creek. The sediment basins are
located at, the southenl ~~d of the project area, near Gunn High
School. The bike patb is located within an BO-foot wide former
spur of the Southern Pacific Railroad (SPRR) right-of-way~ The
portion of tbe right -of -way nonh of Matadero Creek is owned by the
City of Palo Alto and the portion ~outh of the creek is owned by
Stanford university. A variety of volunteer native and introduced
B
'" -._---
,:';--I{ _
~q~f-;
:;;".,
•
trees ana shrubs grow on both sides of the bike path. For
additional iuformation .regarding the ~nvironmental setting. see the
attached Negative Declaration; Matadero and Barron Creeks
Biological and Visual Resources Impact Assessment by Harvey and
Stanley Associates dated December 3, 1987; and CUltural Resource
Evaluation of the Matadero Creek Plood Control P~oject by
Archeological Resourc~ Management dated SEptember 1997~
III. Project pftscriptiQn
Phase V of the Matadero and Barron Creeks Flood Control Project
involves the construction of 4.300 feet of underground bypass
culvert, a conflueace structure at Matadero Creek, a new bridge
across Matadero Creek (which will replace L~ existing bridge) and
modifications to two existing sediment basins along Barron Creek.
The project is tentatively scheduled to be adv~rtieed for
construction in early 1994 and work should begin in Spring 1994.
The construction of the flood contral improvements is anticipated
to be approximate~y 1 ~/2 years, followed by six months of
replacement planting and approximatley 15 years of landscape
maintenance (three years b}p the SCVWD and approximatley 12 years by
the City) .
When construction is complete, the bypass culvert will not be
visible because it will be undergrO\md for its entire length. 'The
existing bike path will be replaced, generally in the same location
as the existing path. The Phase V construction is proposed to take
place in tour stages ~ The Btaged construction will minimize
construction impacts and allow early :eopening of completed
portions of the linear park and bike path ~~ the public.
Stage A consists of 570 feet of ~2 X 12-foot reinforced concrete
box culvert (ReB) from Stanford Channel to Matadero Avenue. For
this portion of the project, the box culvert will ~ constructed
beneath the existing bike path. DUring cODstruction, pedestrian
~ bike traffic will be routed to the easterly side of the right
of-way~ adjacent to the rear property lines of seven single family
homes. A temporary compacted gravel path will be constructed along
the rear property lines of seven single family homes on ~he east
side of the b~ke path.
S~ • consists of 1,140 feet of 12 X 12-foot RCB from Matadero
Avenue to north of the bike path crossing over Matadero Creek. The
proposed 12 X 12-foot underground RCB will not be visible from Bol
Park.
Stagw C includes the confluence st~~ctare and extend6 from the end
of Stage B to a point 400 feet south of the confluence area. The
conf:luence has bee!1 designed to allow low flows to continue flowing
in the natural stream channel down to Bl camino Real but divert
higher flows into the underground bypass channel. The existing
bike cmd pedestrian bridge over Matadero Creek will he removed and
9
-'> ... ~
)
replaced with a new structure.
The cew bridge will serve two purposes. First. the bridge will be
a box girder design that: will incorporate the Barron Diversion
Channel box culvert and carry its flows directly into the Matadero
Bypass Channel. Second, it will provide an enlarged opening for
flow passage in Matadero Creek and eliminate the high velocities
which have resulted in erosicn immediately downstream. The design
dimensions of the confluence structure are based on a physical
hydraulic model study. The widened channel conforms to the
existing creek appr-oximately 50 feet downstream of the bridge. The
channel bottom through the bridge will be concrete lined and
incorporate a low flow pilot channel tor fi6h passage.
Stage D consists of a 10 X 6-foot RCB from Stage C to the Barroo
Creek sedi~~t basins. modifications to the lower sediment basin,
and aboUt 550 feec of floodwall at the upper sediment basin. The
underground diversion chrtnnel would be located within the existing
eO-foot wide forme~ SPRR right-of-way that is owned by Stanford
university. Adjacent land uses consist. of the O.S. Veterans
Ar1m 'ni stration Hospital to t:he west and Gunn High Sch()l)l and single
family homes to the east. Tbe San Francisco Water Department's
Betch BetChy pipelines run adjacent to the sediment basics OD the
IlOrtherly side and will be protected during construction of the
diversion. A new overflow structure would be constructed on the
northerly levee of the lower sediment basin. 'rhe structure is
designed to discharge high flows out of the lower Barron Creek
sediment basin and into the underground diversion box culvert. A
two to five foot high concrete floodwall will be constructed alOllg
the upper sediment basin.
IV. ixplep4t,ign of "yeS-and -maybe-answer§ in environmental
CheckliRt.
1.h.,-c., e. 6. sr. ~.
Impact.: Construction of the box culvert. confluence and
modification of the two existing sediment basins will temporarily
ciisrupt and compa.ct soil. Up to appIoximatel),-70 ,000 cubic: yards
of material woul.d be excavated to install the proposed flood
control improvements. The contractor may ha'u,l a.l~ exc:avated
material off site and thereafter import fill material to the site
for backfilling. The total truck loads of earthen material may be
up to 9,300. TIle earthwork quantities and truck loads are based
upon the assumption of trapezoidal excavation with the exception of
500 feet on t.~e north end of the project (i.e .• from the Stanford
Channel sOGth 500 feet) which will have vertica.l cuts. In the
event that the contractor elects t.o excavate vertically in
additional areas (possibly to the north of the propoeed c~luence
and at Strawberry Hill near Gunn High School and the VA Hospital] •
the excavated quantities would be decreased by approximately 20\,
or a net difference of 15.000 cubic yards (i.e., to approximately
In
-.,'
55.000 tot.al cubic yards of ma.terial that would be excavated).
Following cQUlpletion Qf the proj ect, the topography of the site
will be restored to pre-project conditions except at the lower
Barron Creek gediment basin. The existing lower 5edi~~nt basin
levees will be raised by four feet to enable the control structure
to ac~urately divert excess flows to the Barron Creek diversion box
cul~rt in the event of a 1\ flood. Temporari erosion may result
from the widening of the creek banks at the exist.ing bridge
crossing Matadero Creek.
~tigation mea8~r.8: The SCVWD shall require the contractor to
develop aDd implement a temporary Erosion and Sediment Control Plan
'ESCP) . The ESCP shall he submitted for review and approval
{within one week of receipt) by the City of Palo Alto Public Works
~~ineering Division. Prior to submittal to the City, the ESCP
shall be reviewed and approved by the SCVWD. The ESCP shall
describe existing soil conditions and the potential for erosion,
proposed soil stabilization and sediment control practices. The
XSCP shall emphasize p~eserving existing vegetation ar~ the
coost.ruction areas shall be revegetated as soon as feasible. At a
minimum, soil stabili~ation practices shall be in place betw~en
OCtober 1.5 and April 15, or when there is flow preeeI!.t in the
creeks.
2.a. &.U:
:bpI.ct.ll: See the attached Negative Declaration.
titigatlon .... ur .. ; The SC\<'"WI) shall require the contractor to
implement the following (these measures shall be incorporated into
t.he project plans and spe~ifications and shall be submitted to the
City of Palo Alto Public Works Engineering Division for review and
approval. prior t.o advertising the project for bids) !
a. In order tc reduce dust levels during construction ..
exposed earth surfaces shall be watered frequently. with
reclai'll:-Dd irlater, during the late morning and at the end
of the day. with .frequency of watering increasing on
windy days. S:pillage resulting from hauling operat.ions
along or across any public or private property shall be
removed immediately at the expense of the contractor ~
Dubt nuisances originating from the construction
operations shall be controlled at the contractor~s
expense. The SCVWD project inspect-or and the Cit)" of
Palo A1 to Public Works Department. shall monitor the
contractor~s dust control operations.
b. Overfilling of trucks by the contractor shall be
prohli>ited.
c~ Any spills on City streets shall he cleaned up
11
-. ~;;
d,
inmediately by the contractor.
While it is beinq used as a construction access route,
Matadero Avenue shall be swept with a mechanical sweeper
at the end of each working daY4
~.
%mpact.: See the attached Negstive Declaration.
It:itiption ..... ur .. ~ The SCVWD shall raquire the contractor to
imolement the following {these mea~ures shall be incorporated into
the project p!ans and specifications and shall be submitted to the
City of Palo Alto Public works Engineering Division for review and
approval prior to advertising the project for bids)~
a. The contractor shall comply with the req.Jirements of th-e
Palo Alto Noise Ordinance. Construction work and truck
haul.i.!lg shall be limited as follows:
Stages A & B, Monday-Friday -8:30 a,m, to 6:00 p.m,
stage C: Monday-~riday -S:OO a.m. to 6:00 p.m.
Stage ~, Hooday-Friday -8:00 a.m, to 8:00 p,m.
Saturday -9:00 a.m, to 8,00 p,m.
b. Muff~ers and housings shall be provided on construction
vehicles and equipment,
3.a •• ~. ~.
~et8: See the attached Negative Declaration.
Jlitiptiou 1Iea&u%'U: The sevwo shall require the contractor to
prepare a Stormwater Pollution' Prevention Plan (SWPPP}
incorporating best management practicell (BMP's) for stormvater
pollution prevention in all construction oparations. in conformance
"'ith the Santa Clara Valley Nanpoint Source Pollution Control
Prcgram and State of California Water Resources Control Board.
These tneasures shall be included in the proj e,=t specifications.
The SNPPP ahall be submitced for review and approval (within one
week of receipt) by tbe City of Palo Alto Public Works Engineering
Division. Prior t.o. submittal to the City, the SWPPP sha.l~ be
reviewed and approved by tbe SC'VWD, The SCVWD shall comply with all
~rovision& of the State of california's General Permit for
disch.arge of sto:rzawater associated with construction activities and
shall provide a copy of tbe Notice of Intent (NOll to the City of
City of Palo Alto PuDlic Works Department,
••••• c. Plant Lif •• S.a. ~ 4. AQtmal LiCa.
:x.pacta : Existing treeB, slu:ubs and groundcover wi thin the
COn8t".ruceion access area along the bike path and adjacent to
approximately 180 feet of Matadero creek near the existing bridge
12
.,
will be disturbed (see the attache,;:! Biclogical Resources Impact
Assessment prepared by Harvei' and Stanl£:}' Asscciates da'ted December
3, ~9a7). Due to the locations of th~ trees to be removed, there
~ill be minimal impact to privacy of homes in the vicinity of the
project.
A total of approximately 84 trees will be removed during Phase V,
plus 34 additional trees which ~ould be transplanted. The trees to
be transplanted are in vigorous health and are generally between
the sizes of 4-and len DBR.
The trees proposed to be remo".red are either 1} located within the
path of the proposed box culvert or construction trench and are too
large to be transplanted; 2) in poor health, diseased or frost
damaged; or 3) are detrimental to other trees. Of the 84 trees to
be remo-tTed, approximately 6" are in healtt,¥ condition. The
remaining 20 trees to be removed are ei~her dead or diseased. The
largest healthy trees to be removed include a 60" Eucalyptus, 24-
Pepper, .lSII' Eucalyptus, lSr. Blue Elderbe:-Zj', 15" Pine and a 15 n
Oak.
Coamon urban fonus of wildlife, includ.ing ground squirrels, robins.
bouse finche~, scrub jay and mockingbirds utilize the bike path
corridor. HaJ:dtat for these species will be disturbed by the
construction activities. Most wildlife can be expected to move
from the proj ect area during construction to adjacent areas,
including Bol Park, Barron Creek and. Matadero Creek. Construction
will temporarily diElrupt any nesting and foraging of wildlife which
occur .in this area.
The riparian vegetation. along-Matadero creek that will be lost due
to the construction of the confluence consists primarily of Oaks,
Willows, and Blackberry brambles {approximately 21. trees will be
removed Dear the proposed confluence structure). A Blue
Elderberry, California Buckeye and several Eucalyptus trees will
also be removed. None of this vegetation has been observed to be
the habitat for rar~ or endangered species~
The vegetation on the downstream side of the pedestrian bridge
consists of Oaks, Blackberries and Periwinkle. Tbe southern bank
ja currently covered with concrete gunite and ooes not support any
vegetation. A gaoion wing wa12 is proposed to replace the gunite
wall which currently surrounds twe') oak trees. 'The new wall will be
placed arOl.lD.d the root zone of a third Oak tree. The trees are in
healthy condition and should withstand activity in the root zones
because the roots may be reaching ground water and the nev wall
will replace the existing gunite wall which retains wate~ in the
soil around the roots.
Tbe upstream side of the bridge is a diverse and eclectic mix of
native, riparian and exotic nOD-native species. Approximately six
oaks (the largest is 15-), six Willows (the largest is 6-), one
13
r C,
Buckeye and several Elderberry trees (the largest is lBn) will be
removed near the bridge.
Macure Blue Gum Eucalyptus trees are favored nesting sites for the
red-shouldered and red-tailed nawx. These r~wks prefer to nest in
tall (20-80 feet) tXdes near water and are tolerant of proxi~ty to
humans. Nesting sites are frequently used for more than one
season. If hawks resided in the trees last spring, it is possible
that they would retUrD to the same site next year or in future
years. Tree #662 (60 inch DBR Eucalyptus) and Tree #231 (18 inch
DBB Eucalyptus) have ~en identified as possible nesting sites.
Both of the trees are located along Matadero Creek near the
propos:ed confluence structure.
Tbe proposed planting program is intended to restore the vegetative
c~~r, although it will tak~ a number of years for the planted
trees to reach the size of the larger trees whicb will be zemoved
during construct_ion. Tbe SCVWJ)' s proposed landscaping plan for
the Phase V project includes a total of i24 new trees and 118 Dew
shrubs. This represents approximately a proposed :2! 1 tree
replacement ratio tor the 64 healthy trees which are to be removed
(i.e., 126 new trees versus 64 existing healthy trees).
&. To avoid disturbance of potential nest sites of red
tailed and red-shouldered hawks in the eucalyptus trees
along Matadero Creel<, the upper one-third of Tree f66. on
Plan Sheet 51 (i .e~ the plans entitled "'Matadero Creek -
Phase V' prepared by the Santa Clara Valley Water
District dated December 8, 1993) shall be topped by the
City of Palo Alto prior to Marcb 1st. If it is
dete~ed that Tree #~31 is a nesting site by the City
Arborist in consultation with a wildlife biologist, the
upper one-third shall be topped by March 1st.
b. prior ~o constructicn~ the SCVWD shall provide tho City
with videodOC'..unelltal;ion of all existing ~,,..egetation within
the project area.
c. 'I'he following measures shall be incorporated into a
detailed landscape and irrigation plan which shall be
submitted to tbe City of Palo Altc Planning Division for
review and approval prior to advertising the project for
bids. Minor modifications to the plan may be made during
installation. subject to the Planning Division' So
approval.
1. All existing trees which are removed shall be
replaced with new native trees on a 3:1
replacement ratio for trees over six inches in
diameter, and on a 1: 1 replacement ratio for
14
· .
2.
3.
4.
5.
6.
7.
trees w~der s~x inches in diameter. The new
trees shall be five gallon container stock and
shall be planted in the vicinity of the
original tree, unless the City Arborist
determines that an alt.ernat.ive location is
appropriate.
Plan Sheet 9 shall be revised to i:..clude
baftles and a low-flow channel invert or
qrouted rock in the ~tream channel to prevent
creating a velocitj' barrier to fish migration.
Plan Sheet 'I'A-8 shall be revisec1 to shew
replacement plantings around the entire
pQrimeter of the lower sediment basin (i.e.,
southern portion of the basin.
Plan Sheet TA-9 shall be revised to include
herbaceous plants 'e.g., plugs of native
grasEies) in the openings of the gabions
(1I1idbank to upperba.nl<) along the proposed
confluen-ce structure. Tlle P~am1ing Divi!iion~
in consultation with a wildlife biologist,
shall develop a herbaceous plant mix to be
included in tbe. tinal design.
Plan Sheet PL-3 shall be revised to continue
hydroseeding southward to the end of the
proj ect area in the vicini ty of Gunn High
School 'i.e., currently, the proposed southern
limit Of hydroseeding is at Matadero creek) "
The hydroseed mix shall cons ist of nati ~
wildflower and native grass speCies and sball
be subj ect to review and approval by the City
of Palo Alto Planning Division. It is
recommended that,
the seeding rates per acre should be
increased as follows: purple stipa -
trom 1 Lb. to 6 LbS.i blue rye --from 4
Lbs. to 5 Lbs. j" and
the number ot proposed species should
be increased (potential additions
include california brome at 5 Lbs. per
acre, and sticky monkeyflover at 2 Lbs.
per acre).
On Plan Sheet TA-8. the following spec-iee
shall be added to the shrub layer: ~ifornia
blacJd::lerry, wild rClSe~ blue elderberry, and
red flowering curre~t.
15
8 ~ on Plan Sheet. TA-S, the proposed white alder
trees shall be changed to oaks (coast live or
valley oak) or sycanore trees.
9. On Pl,an Sheet TA-9. the following species
shall be added to the shrub layer: wild rose,
California hazel and red flowering curreD~.
10. On Plan Sheet: TA-9, at leas~ half of the
replacement willows shall be yellow willow.
d. The SC\~ shall require the contractor to implement the
following (tbese measures shall be incorporated into the
project plans and specifications and shall be submitted
to the City of Palo Alto Planning Division for review and
approval prior to advertising the p~ject for bids) :
l.. If any existing shrubs are removed during
construction which are not designated for
removal on the plans, they shall be replaced
by the contractor with readily available
native sb.rutls on a l: 1 ratio ~ The new shrubs
shall be native Bpecies~ one gallon in size
an(l planted in the vicinity of the original
shrub, ~ess the SCVWD in consultation with
the Cit}~ Arborist determines that an
alternative location is appropriate.
2 . 'l11e tOUONing requirements shall apply to the
trees to be transplanted,
only trees in vigorous health and
between the si.zes of 4-10 inches in
diameter may be transplanted;
watering basins shall be large enough
to encompass t.he dripline of the tree
(generally 36 inches in diameter);
a revegetation specialist or certified
amorist shall Bupervise all tree
salvage and replanting activities;
during the three year maintenance
period, the contractor shall be
responsible for watering, pruning. and
trea~ing the ~ree& for peat or disease
proolems;
if any transplanted trees die withiD
the three year maintenance period, they
shall be replaced at a 3:1 ratio with
new native tree species ~ the vicinity
of the transplanted tree. The new
trees shall be ti ve gallon container
stock and shall be planted in the
vicinity of the original tree, unless
16
'. t.he SC\";'''D, in cons'll 1 tat i on 'W' i th the
City Arborist, determines that. an
alternative location is needed.
all replacement plantings shall be
nati '\"e species.
3. The planting holes for new trees and shrubs
shall be excavated to be t,wice the size of the
root ball of the plant. Slow-release
fertilizer shall be placed in the bottom of
each planting hole. The holes st~ll be back
filled witb native soil from the project area.
A layer of coarse mulch shall be placed around
the base of the clants to conserve moisture
and control weeds:
4. wat.ering basins around Dew and transplanted
plants shall extend far enough to encompass
the dripline of the canopy of the tree or
shrub. If the ground is sloping, a 4-inch
high, hand-compacted earth berm shall be
cons t ruct ed a10ng tbe forward edge of the
planting terrace~ If tbe ground is level, a
4-inch hi9h~ hand-COfapacted earth berm 36
inches in diameter shall be constructed around
the plant bole.
s. Trees to be retained which are located
adjacent to the zone of disturbance shall be
protected throughout tbe construction phase by
the following measures~
Tempo:rary plastic construction fencing
that is se:cured with metal T-posts
shall be installed around the trees to
be retained. The fencing shall be six
feet in heiqht and installed at the
tree' s ~ipline . Ir.. CAses wh~re
construction access is require-a., the
fencing may be placed closer to the
trunk. TIle placement and adequacy of
the protective fencing s~l be
periodically inspected by the City's
Arborist and the SCVWD inspector ~
Where construction access is required
under the dripline of trees to be
retained, a gravel cushion of 6 inches
in depth shall be provided.
6. For trees with branches or roots which
overhang into the construction %one~ lo-.fer
branches and exposed roots shall be pruned to
provide clearance for the movement a..9].d
17
operation of constr~cticn equipment. Pruning
shall consist of clean cut.s by a qu.alified
tree surgeon possessing a C~27 Landscape
Contractor's License. 1t...ll pruning :=.halJ. be
subject to re,de-w and approval by the City
Arborist.
7, A revegetation maintenance program for
maintaining the installed con':ainer st-ock and
the transplanted trees shall be submdtted for
review =md approval by the City Arborist. The
maintenance program shall be for a period of
three years following completion of the
project and shall incl~de provisions for the
following: maintenance of watering basins,
weed control, irrigation, p~~ing and
thicning, plant protection, supplement.al
planting, and debris removal.
8 . Ouzing the three year maintea&nC'e period, the
frequency and duration of irrigation shall be
monitored by a revegetation specialistl
arborist. Irrigation equipment shall be
inspected, repaired. and replaced as required
to ensure proper operation and adeqr~ate plant
growth.
9. Any plants that do not survive during the
three }-ear maintenance period .hall be
replanted under the supervision of the SCVWD' &
inspector. The following survival rates shall
be required: 90t survival rate for new trees
and shrubs, lOOt survival rate for
t.ransplanted trees" and 60t survival rate for
herbaceous cover. If at any time during the
three year maintenance period, t.he percent
survival falls below the success criteria i
supplemental planting and/or seeding will be
necessary.
e. During tbe three year maintenance period, monitoring
shall be conducted by the SCVWD in conjunction with a
l~cape architect. The monit.oring shall include.
reconnaissance-level surveys, quantitative sampling,
pbotodocumeneaiton i and annual monitoring r~rts that
document the results of the monitoring, maintenance, and
revegetation activities. The annual reports shall
recoomend remedial actions to be undertaken if th-=
project is net meeting performance criteria. The reports
shall be sul:xnitted for review and approval to the City of
Palo Alto Planning Division.
18
. .
.,: ~ :,.
-:,. > ~
;-';~,~:: .
t. Long-term monitoring i i.e. I from four to approximately 15
years after planting), shall he conducted by the City of
Palo Alto. Long-tenn performance criteria shall he
established by the City Arborist and shall address the
following: average tree height (by species), percent
canopy cover trees, percent canopy cover shrJbs l percent
of invasive non-native plant species. and habitat value
in terms of wildlife use. Long-term monitoring shall be
cOJ'I..ducted at three-year intervals by a qualified botanist
or plant ecologist and wildlife biologist. The results
of reconnaissance-level surveys, photodoc~entation, and
remedial measures (if applicable) shall be included in
monitoring repcr~s. The length of the long-term
monitoring period is subject to the project's success,
z.pact.: Sinc~ portions of the project are located within the area
of the Hillview-Porter Regional Program, excavation work may
encounter toxic materialS in the soil or groundwater. A soil and
groundwater contamination report fer the proposed Phase V' project
was prepared by Woodward Clyde Consultants. The report is
a~~ilable at tbe Palo Alta Planning Division, located on the 5~~
floor of City Kall, 250 Hamilton Avenue, Palo Alto. CA 94301.~
~~ Hillview~Portar Regional Program currently maintains
approximately 20 velle: in the vicinity of the Phase V proj ect.
These wells were originally installed for groundwater monitoring.
Eleven of the wells are in the process of being con~~rted for us~
as groundwater extraction wells.
Potential impacts of the SCVWD's Phag~ V project are 1) potential
wellhead damage d!.le to cc!!~l:ruction activities; 2) tempo1'ary
disruption of ~be use of the grouodwater extraction wells which are
located within the project area which could prolong the groundwater
remediation process; 3) exposure of workers to contaminated seils
during excavation activities; and 4) potential problems of
disposing of contaminated soils which will be excavated from the
site.
Items 1 and 2 (above) are addressed in the attached letter from
Brown and caldwe.ll dated December 3, 1993. The letter states t.hat
these potential impacts can be effectively mitigated, as described
below. The letter indicates that there is a minor risk of pipeline
damage to twa wells while soil is ~eing removed around tha laterals
and supports during the initial excavation, The letter also
ind.icates that four 'Jf the 11 groun.cho:ater extraction wells are
located on the east side of the bike path. Three lateral pipelines
connecting these four wel~s to the .nain ground.wal.er extraction
conveyance line along the west sic1e of the bike path will be
constructed as part of the remediation program. Each of these
three laterals cross the proposed excavation for the SCVW01s box
19
cul~rt. Three of thE wells (Wells BP-46A/4~B and BP-62A) will be
shut down for up co one week during the construction of the box
culvert. One well ('Well BP-58} \ldll be Ot.!t of service for up CO
one month. This short-term disruption of the walls for the SC\~
project sboul.d have no measurable impact on the groundwater
remediation program. The mitigation measu:t"es recommer:.ded. in the
lett~r from Brown and Caldwell were reviewed and approved by the
California Department of Toxic Substances. Control (see the attached
letter dated December 14~ 1993).
Items 3 and " (abovei are more fully addressed in the attached
-Discussion of Soils Analysis Resulte-dated December 7, 1993 by
Woodward-Clyde. Since the box culvert is above the esti'C"..ated high
groundwater in wells and borings. soil contamination would have no
significant impact on the project+ None of the analytical results
indicated that the soils within the Phase V alignment excavation
would be classified as chazardous" according to California Title 22
criteria. Soil excavated during construction of the proposed box
culvert is expected to be di:E!pasable at any Class III landtill that
will accept it.
Kit1!!,&UOD ~, The SCVWD shall require the contractor eo
implement the following (these meaa;ures shall be incorporated into
the project plans and specifications and shall be submitted to tbe
City of palo Alto Planning Division for review and approval prior
to advertising the project for bids) :
a. Bach of the extraction well laterals shall be tied to a
buried support (e.g .. steel I-beams) spanning the width
of the box. culvert excavation. The SCV"'ifD's contractor
shall excavate below the structurally supported pipelines
while t.he laterals remaio. in ser-nee. The support will
also provide a measure of physical protection to the
exposed pipelines.
h. Wells BP-46A/46B and BP-62A will be sbut down prior to
the excavation of their respective late::-als+ This
disruption sbal.l last. no more than one week at each
location in order to minimize the amount of ext x'acted.
groundwater that could be relea.sed. in the event of
pipeline damage. wel~ operations wiJ.l resume once the
excavation for the box culvert is completed.
c. 'I'be lateral and its supporting structure at Well BP-Sa'
shall be removed while the SC'VWIi's contractor pours
concrete foZ" ::he :!"oof of the box culvert+ Disruption of
groundwater extraction at that well shall last no longer
than one month. The laceral shall be replaced once the
box culvert concrete is cured.
d+ During construction of the Phase V project. all wells
within the project area shall be protected using
20
r
..... ..
j ,---_ ..... -
techniques such as sheet. p~.11n9, iI'.stallation of traffic
J:;ollards, utilj ty boxes, and hea"\'Y steel t:r-encr. plate.
The actual techniques used to protect the wells during
construction shall be approved by the California
Department of Toxic Substances Control prior to the
commencement of work on the Phase V p~oject.
e. Air monitoring for worker's health and safety shall be
conducted by the SCVWD's contractor in accordance with
the contractor's Health and Safety Plan for the project.
The project Health and Safety Plan shall be reviewed and
approved by a Certified Industrial Hygienist retained by
the contractor. If p~eexisting contamir~tion is
encountered during conRtruction, the contractor shall
imnediately suspend all operations and notify the SCVWD,
City ot Palo Alto Public Works Department and California
D~partment of Toxic Substance Control.
f. Should previously undetected soil contamination be
encountered during con~truction, the Health and Safety
Plan prepared for the site (which shall be reviewed and
approved by a Certified Industrial Hygienist) shall be
amended to address the specific potential hazards to
workers and any othe rs who will be invol ved in t.he
constru_ction that could result from exposure to the
~etected contaminant,s) .
g. The Scvw.o's contractor shall provide the necessary
personal protective equipment. tor the workers during
project construction. Personal protectiV!!! equipment
shall be in accordance with the requirement.s of the
project Health and Safety Plan. The Health and Safety
Plan shall be reviewed and approved by the contractor's
Certified Industri~ Hygienist.
12 • a., b .. , c .. , &: d.. Trln mgrtatiOA!Circ;ulation.
~cts! During construction 1) the existing Bol Park bike path
will be closed and bicycle and foot traffic temporarily detoured;
and 2) construction traffic will impact surrounding neighborhoods.
The existing bike path will be detoured from the Varian site south
to Matadero Avenue~ along Laguna Avenue, Ilima. Way, then enter Gw:m
High Scbool via McGregor Way. and leave Gunn High School
immediately north of the intersection between Miranda Avenue and
Arastradero Road onto Miranda Avenue. The temporary path will
remain U!ltil construction of t.he diversion box culvert and sediment
basin modifications are complete. Following construction of the
underground diversion, a new bike path will be constructed along
the existing alignment and. the disturbed. right-of-way will be
revegetated.
During construction, access to the project area will be from three
21
locations. The proposed construction access is as follows:
a. Matade .... o Aygnue Acces~ rbetween Laguna Avenue and El
Camino Real) -Approximately 1,700 feet of the Matadero
dive=:sion box culyert t'rom Stanford Channel to Matadero
Creek will be cor.structed using this route. The average
daily truck loads on t-1ataaero Avenue are -estimated at 33
trucks/day (baRed on five workdays!w,eek for six months) .
Tbe number of truck. loads on Matadero Avenue will be
reduced if the VA Hospital access is also used for
COnBtruction of this portion of the project.
b. Veteran's Admjni6tratjpn Hgspital Access (from Miranda
A-venue thrO".J.gh the VA Hospital property) -The VA has
approved construction access through it.s property. A
right-at-entry agreew~nt has been executed between the
SCVW[) and the VA. This construct.ion access will only be
available to the contractor for a period Of 1 1/2 years.
c. Arantradero Road Access -the contractor will be allowed
to use the bike path from Arastradero Road throughout: the
construction period.
DUring construction of the proj ect tbere will be up to
approximately 10,400 t.ruck loads of materials transported to and
from the aite, including approximately 9,300 truck loads (in five
axle erucks) of earthen material, 900 concrete truck loads and 200
truck loads of other types of materials (e.g., sand, reinforcing
bars, gravel, water, timber, trees, S'hrubs and rocks). Below is a
scenario the contractor is likely to implement in terms of the
distribution of trucks.
a. Matadem Access: 4 1 300 truck loads
b. VA Access: 2,100 truck loads
c . AraBtrAde ro Ace e9 s: .L..QQ.Q t.ruck loads
10,400 truck loads
111 U!JI'ticm 1le&Sure8,
a. Tbe SCVWD shall continue impl~ting a public outreach
program to keep area residents updated on the
construction schedule and the use of Matadero Avenue as'
a construction access route.
h. The SCVWD shall require the contractor to implement the
following 'these measures 6ha~1 be inco~rated into the
project plans and specifications and shall be submdtted
to the City of Palo Alto Public Works Engineering
Division and Transportation Division for review and
approval pri.or to advertising t.he project for bids) :
22
. '
1. Upon completion of the flood control
improyements wit.hin Stages A and B,
restoration ot the bicycle path and vegetation
within these areas shall be commenced
innediately. stage A shall be reopened to the
public as soon as the bicycle path is
completed and accepted by t.'i1e SCVWO and the
City {revegetation work may continue after th~
path is reope.rled). Stage:S shall be reopened
to the public as soon as the bicycle path and
revegetation work are comp2eted and accepted
by the SCVWD and the City.
2. Standard constnlction area signs, subject to
review and approval of the City of Palo Alto
Transportation Division, shall be posted along
Matadero Avenue, Miranda and other streets; as
necessary; to warn the public of the ongoing
construction traffic.
3. No contractor worker parking shall be
permit.t.ed on City streets. The City shall
limit on-street parking on Matadero Avenue
dur~g conBtruction hours as needed for
traffic Bafety reasons.
4. No Btorage of equipment or materials sball be
permitted on City streets.
5. Emergency vehicle access and access to all
residences along Matadero A"recue and other
st.reets affected by the project shall be
maintained at. all times.
C. The SCVWD shall require the contractor to implement the
following regarding the proposed Matadero Avenue
construction access for Stages A and B (these measures
shall be incorporated into tbe project plans and
specifications aLd shall be submitted to the City of Palo
Alto Public Works Bngineering Division and Transportation
Division for review and approval prior to advertising the
project for bids) :
1. Use of Matadero Avenue shall be limited to a
period not to exceed six consecutive calendar
months.
2. Use of Matadero Avenue shall be limited to the
hours of S,30 a.m. to 6,00 p.m., Monday
througb Friday (exc1. uding bol idays l . See
mitigation measures above under Air and Noise
for haul ins hours on the remai:nch!r of the
23
'~-:,:.>
,,~:':.
-,
project:.
3. Construction traffic shall be limited to
trucks with n:> more t.han five axles.
4. Construction traffic shall be controlled such
that. no trucks are permitted to -pass each
£:.other on Matadero Avenue. Prior to
construction, a traffic control plan shall be
submitted for review and approval by the City
of Palo Alto Transportation DivifOion which
describes the methodology for insuring that
only one trllck uses Matadero Avenue at: any
given time. This requirement shall be
monitored by the Scvw.o's project inspector.
54 construction traffic on Matadero Avenue shall
be subject to A 2D mph constnlction zone speed
limit.
6. A full-ti.... flagger shall be stationed at
Matadero Avenue where it crosses the
construction site to control traffic. A
tlagger shall a.lso be stationed at the
intersection of Matadero Avenue/JoBina Aven~e
between 1,30 p.m. to 3,30 p.m. on school days
to assist school children in crossing Matade.ro
Avenue 4
13 ••• _ PUblic; Suyic;.u.
Illpactl: Road surface conditions on public streets will be
temporarily impacted by the project ,truck traffic.
Jlitigation 1Ieea= .. , The SCVWD shall require the contractor to
implement t.be following (these 1Deasures shall be incorporated into
the project plans and spacifications and shall be submitted to the
City of Palo ~to Public Works Engineering Division for review and
approval prior to advertising the project for bid~) :
a. The C'ontractor shall iumediately repair any damages or
potholes caused by construction traffic on any City
streets in accordance wi th City of Palo AI to standards 4
b. Matadero Avenue Bhal~ be SW2pt with a mechanical sweeper
at the end of each working day. Potholes resulting trom
the construction traffic OD. Matadero Avenue shall be
promptly repaired by th~ contractor. At the conclusion
of the use of Matadero Avenue as a construction access
route, all street failures shall be repaired. and the
street shall be resurfaced. The cost of the street
resurfacing shall be shared by the City and the SCVWD, in
24
'"-"--'-'------'"-------________________ iIlII
accordance with a formal cost-sharing agreement to be
negotiated prior to ccnstr~~tion,
c. All work within the public right-af-way to be ~aintained
by the City (City utility relocations, bicycle path
improvements, landscaping, etc.) shall be subject to
inspection and approval by the Public Works Inspector
and/or Utilities Department ir,spectors. The SC"VWD's
contractor shall obtain a street opening permit from the
City of Palo Al~o Public Works Engineering Division (the
fee will be waived}. The SCVWO's contractor shall also
name the City of palo ~~to as an additional insured on
their liability insurance policy~
~4 .• qb"c •••. d. Utilitils.
:x.pacta: The flood control improvements are designed to divert a
major portion of the one percent. flows from both Matadero and
Barron Creeks to Matadero Creek downstream of Bl Camino Real with
minimal disruption of the natural creek channels within the Barron
Park neighborhood. Sewer, gas and ~treet light utilities will be
impacted during constructioo, resulting in the need for relocation
of some utility lines. Seven street light.s along the existing
bike path will be temporarily disconnected during construction of
the project~ one telephone booth will be temporarily taken out of
service. While temporary disruptions of utilities during
eonstruction are anticipated, major outages are not~
iii tip tioa XeaJlur •• ~ None required.
17 • BegMtiOA.
:IlIIpa.eta: DUring constructicm 1.) the existing Bel Park bike path
will be c10sed and bicycle and foot traffic temporarily detoured
(see the discussion above under Transportation/C~I:cu.lation); and
2! access to 801 Park will be temporarily restricted to Laguna
Avenue. In addition, visual impacts as well as construction noise
and dust will impact park users during this six moct.h period. The
bike path will be restored immediately following the completion of
the concrete box culvert and reopened for public use.
Mitigation Measurea: See mitigation measures above under
Transportation/Circulation.
3.8 .. &~ I: b. CUl.tura1 haO»rScI.
Impacts: See the attached Negathre Declaration and CUltural
Resource Ev~luation of the Matadero Creek Flood Contral Project by
Archeological Resource Management dated S~ptember 1987~
Ilitigation Measure.: The SCVWD and the contractor sball comply
with the requirements of Appendix K of the Guidelines to the
25
.. "
California Environmental Quality Act, including the following
(these meas'Ures shall be incorporated into the proj ect plar.s and
specificationa. and shall De submitted to the City of Palo Alto
Planning Division for review and approval prior to adYertisirLg the
project for bids) :
a. Upon unearthing any archaeological artifacts or a burial
site as evidenced by human skeletal remains. work shall
be suspended and the person making such discovery sr.all
inmed.iat.ely notify t.he SCVWD~ City of Palo Alto Planning
Dep~ment and the project archeologist.
b. If a burial site is unearthed. the County Coron~r shall
be no~ified immediately. If the County Coroner
dete:rmines that the remains are Native American, the
Coroner will contact the California Native American
Heritage Conmission and the County Coordinator of Indian
Affairs. 110 further disturbance of the site may be made
except as authorized by the County COOrdinator of Indian
Affairs.
Attac:bments,
11 Negative Declaration and I~tial Study
Matadero and Barron Creeks Flood Control
Project, october 1987.
21 Matadero and Barron Creeks Biological and
Visual Resources Impact Assessment by Harvey
and Stanley Associates dated December 3, 1987.
31 CUltural Resource Evaluation of tbe Matadero
creek Flood Control Project by Arcbeological
Resource Management dated September 1987.
f) Letter from Brown and caldwell dated December
3, 1993
5) Letter from Cal ifornia Department of Toxic
Substances Control dated December l4. 1993
6) -Discussion of Soils Analysis Results· from
Woodward Clyde consultants dated Decembe:: 7,
1993
7) Letter from Santa Clara Valley Water District
dated Janu&ry 13, 1994
26
,
J
NEGATIVE DECLARATION
Project: M.tadero and Barron Creeks Flood Control Project.
Location: Matadero Creek from just below Bayshore Freeway to the
Foot.hill Expressway. a parallel bypass c'hannel iroll! E1 Camino
Real to the Veterans A.ainiatre.tion Hospital, and a diversion.
channel linkin. 'Barron Creelt and Mat.adero Creek adjacent to the
Veterans Administr&ti~n Heapital, in tbe city of Palo Alto.
Purpoee: The proposed. proj~ct is desi.ned to protect the
Hatadero Creek floodplain from a 1'% flood orilinatina: frem
Matadero Creek. The inclusion-of Barron Creek floodwaters. ,""ould
alleviate floodin. ori.inatina: from Barron Creek as well.
The project would also facilitate the reaoval of sediaent.
debris. and ve.etation that impede flood flows in the channels.
De~cr1pt1()tl of Prohc:.t.; -'fh& project area has been divided into
11 reaches:-Propoaed .ea..urea in Reachea 1 through 6 consist of
the addition of floodwalls, brid,e replacements. and some ,channel
replacement. New brid.les will replace inadequate cullverts. The
existin& earth channel bottom in the vicinity of Bay£hore Freeway
~ould be concrete-lined to allow access by maintenance equipment.
Flood\o:a.lls two to three feet biaz:h Llould be added to the top of
the existing channel to provide the, necessary freeboard required
to .ec,·t FEm standard!oi. So.e portions of t.he esisting concret.e
trape%oidal channel ~ould be re.oved and replaced with a new
v~rtical-~all channel s~ction.
Wher~ new bridges are proposed. the existing road grades would be
ret.ainerl \-litb th'!' exception of" Par-k Boule ... ·ard. Upstream of El
C.amino Real, the natural creek \.:ould remain ,enerall), undistlJrbed
\.:ith the exception of isolated gahion or sacked concrE::te bani.
protection. An underaround box culvert bypass ,"ould allow the
retention of these nea.r-natural creek ccr["ido["s.
An underaround diversion channel is proposed to carry floodwaters
fro. Barron Creek to Matadero Creek. whiCh 'Would ha"'e sufficient
capacity to safeh' pass biah flo,",s, A detailed re6.ch by reach
description of the proposed project is contained in the
Enaz:ineer's Report,
Findings: The Santo. Clara Valle,.. Water District Board of
D_uectoTa I ha'\'ing rev iewed tbe Ini ti.al Study for the proposed
project, and havina: heard at a public .eetina: of the Board, thil!'
comments of all concerned persons and entities includins tbe
l'p.commendation& of slaff, does hereby find and declare that the
~rflpOSt.d project, ~hich inlcude~ the mitigation measures
Jpscribed in th~ l~iti.l Study, will not have a significant
","rre.:t no kthc ~nviron'!llcnt. Con~equer.tly, a Negative Declaration
il::: appropriate.
Bafl.is of Findings..: Host of 'the .e.dverse iollpacts of the proposed
project would be te_por.ry .ieee they ere related to construction
activiti~.. Durin. conatruction, nea~by r~.ident8 would be
st.:bjected to hi'h le\'elB of noi.~. dust, traff1e d.:-laya, auto and
bic;.vele route detours. cOhle8tion at bt"idee cTossin",s. and visual
degradation. Construction would be iaple.ented on a phased basi&
over five years 80 that the enti re project area would not be
disrupted at once, Construction would proceed from downgtre~m to
u~8trea. to avoid inducinc downatream floodin«.
Luna-ter. .leor i.pacts" 'Would reBul t trom the re.oval \of a small
n_ou,.t (If ripariAn ve.et.Btion in the upper portion of the project
nreD, and the re.oval of native and introdoeed trees and shrubs
",1onll t.he Stanford Cbannel and. .-bicycle path located alon. the
Matadero Bypass route. The 10s8 oC riparian \'eS'etatlon is not
considered a .aianifieant illpaet ti .... en the scattered pattern of
re.oval witbin well-vegetated corridors. The re.oval of
land.capin. plant .aterial will be aiti&ated by an extensive
J"e,"ecetation pro"raa. There ia a potential for disturbance to
ar'cbeologieal relloourceaj haw .. v-e~. _iti".tion .CH.sures 'Will be
hl:r]e.~nted which should rp.duce such i_pacta to e .inor le, .. el.
\1~(;
.:.::;-::1: .•
ENVIRONMENTAL IMPACT ASSESSMENT CHECKLIST
EXplanations of all "Yes· and ~Maybe" answers ar€ required on
attached sheets. If impact occurs during construction or is
temporary. indicate with a "C· or ·T~ under Yes or Maybe.
1. Geology and Soils~ Will the project
re:sult in:
8.. An increa£ed ha.zard to the public
resulting from qeoloqic features of
the site (landslide-prone areas, faults~
slumping. etc.)?
b. Se~ious disr~ptions. displacements.
compaction. O~ impezvious covering of
the soil'? -lL
c. Introduction of toxic materials in
the soil or reduction of soil fertility?
d~ Siqnificant change in topography
or 9round surface relie f feature s?
e. The destruction. coverinq or
modification of any unique geologic or
physical features?
__ .£. Any substantia 1 increase in wind
or water erosion of 60ils. eith~r on
or of! the site?
q. Changes in siltation, sedimen~
transport. deposition or erosion which
may modify a river~ stre~" or ether
body of water:?
2. ~ir. W~ll the project result in:
a. Generation of air emissions (such
as dust) that will 5eriou~ly deteriorate
air quality standards (either locally
or reqionally)?
b. The creation of objectionable
odors?
c. Major alteration of air movement.
moisture or temperature. or any change
in c1~te. either locally or regionally?
_\-_x_
_T_
c
x
x
.. .. .. ..
-~.-,'
,<..,,::.
3. Wat~r. will the project result in:
a. changes in ~uxrents. or the co~rBe
or direction of water movements?
b. Changes in in~iltration rates.
sedimentation, drainaqe patterns. or
the rate and anount of surface water
runoff?
c. Alterations in the course or flow
of floodWaters?
. d. An increase in ciaW.tream flood
potential that miqht cause property
damage?
e. Chanqe in the amount of surface
water in any body of water?
f. Contamination or any detrimental
effect on exis~inq wat~r quality or
qua.?J.ti ties 0 f ei. ther surface or sub
surface supplies?
9.. Change in the quantity of grouna
waters, ei~r thro~h direct
additions or withdrawal •• or thrOugh
interception of an aquifer by cuts or
excavations?
h.. .Reduction in the amount of water
otherwise available far public. water
.upp~ies?
4. !2i!£. Will the project increase
existing noise levels durinq construc
tion or operations to the extent that
existing or future residents would be
,
annoyed? ~
5. Plant Life. Will the project re5ult in:
8... Chanqe in the dive.raity of species ..
or numbers 0 f any species of plants
{including trees, shrubs .. qra~8es.
microflora. and aquatic plants)? ~
b.. Reduction of the numbers of any
un ique.. rare or endangered spec ies 0 f_
--~
____ x_
x
_x_
_x_
plants? X
c. Introd~ction of new plant species
into an area. or a barrier to the
norma.l replenishment of existing species? X
" . ) --
, -'
6~ Animal Life. Will the project result
in :
a~ Changes in the diversity of 5pe~ies~
or numbers of any species of animals
(birds~ land an~ls~ including reptiles,
fish and shellfish. benthic or9anisms~
insects or microtauna)? -1L.
b.. Loss ot· disturbance of a nesting
area for resident or migrating bird5? -1-
c.. Reduction of the numbers of any
uniq'.le~ ra.::'e or endangered species of
animal? X
doo l.Dtrodu.cti on 0 f new speed es 0 f
animal into an ar.a~ or result in a
barrier to the. migration or movement of
animals (or fish)?
e. Deterioration of existinq fish or
~dlife habitat?
7.. Land Use/Community Plans and Values.
Wi~ the project result in:
a. Alteration or nonconformance with
reqiqna1 ~ federal ~ state or local land
Use plans ar,d policies of the surround
ing area?
boo Conflict or inconsistency ~th
adopted polic:ies~ plans and goals of
the cOQrnUnity ~here the project is
locat!!!d?
coo Deterioration of the integrity or
quality of the surrounding neig~
hood? Loss of privacy or security to
residents over the long term?
d... Generation of a substantial public
controversy resultinq from environmental
concerns? X
X
X
X
x
X
.. .. .. .. .. .. .. .. .. .. .. •
r
r
r 8.
9.
&conemic. will the project:
a. Foster economic or population
qrowth, either directly or
indirectly~ in the 8urroundinq area
(particularly if faster than planned
fQr) ?
b.. RemOve a major constraint or
obstacle to growth'?
c. Decrease employment -in the
COZIIBunity?
de Reduce mcreaqe ox yield of an
agri.;ultu.r.al crop?
~lation. Will the locat.ion,
aahiPution. characte.r, or density
of the .urrounding human po pu la t; ion
be altered by the project?
JL
10. SOUsing.. Will the project adversely
affec:t exi.stinq housing or result in
tbe relocation of exuting housing? ___ X
11. Tran.p?rtationJc::irsulation~ will the
proje~t reaQlt in:
&.. An adverse impact upon existing
tranaportation BY_teas? ".l"
b. R1tduction in existll'l9 parkinc;
facilities. or create demand for new
parkin9'? '1'
C.. Alterations to pre •• nt patterns of
circul.ation or IIIIOVeIDBnt of people and/or
good.? or
d.. Increa •• i11 t.raffic haz.ara to
moto~ vehicl •• , birycllat., or pede. trians?
12. Public service.. Will the project.
reault in a need for ~ or altered
governmental servica. in any of the
fQ 11 .... in9' o.r_.,
a.
b.
Fire or police protection?
Schools?
Coo Parka or other reereatit1ftAl
facilities?
or
X
x
X
. .:.-
u.
14.
15.
16.
~. Maintenance of public facilities
I_treets. highwayz, public trausit,
etc.)?
e. Flood Protection?
f.. Other 9'o1.~ernmental services?
Utilities. Will the p:z;oje,=l result in
• Deed for new systems, or alterations
to the follCNing utilities:
•• PoWer or natural gas?
b. eom.unications systems?
c.. Water?
d. Sewers or sept ic tanks-?
e. Storm wate~ drainage?
f. Solid waste disposal?
Energy. Will the project result in~
a. -Use of substantial amounts of
.fuel or energy?
b. Substantial demand upon ex.istinq
aourees of energy, ~r require the
development of new sources of e"erqy?
Public a.nd Environmental Health. .-7] 11
the project result in:
a. Creation of any known human health
hazard or potential health hazard
(excluding mental health but includinq
physical injury)? ~
b. Involve the application. use. Qr
disposal of toxic or hazardous
JQa. ter ia ls?
Aesthetics. will the project result in
the obstruction or elimination or any
scenic vista O~ view open to the public~
or vill the project result in the creation
of an aesthetically offensive 5it~ or
structure presently or potentially open
to pub lie view?
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17. Recreation. Will the project result in
an tmpact upon the quality or quantity
of existinq recreational opportunities
(5Q~h as fishing. boating, hiking.
borseback ri.ding., bicycling1?
18. Archeological/Historical. Will the
project result in an alteration of a
significant known archeoloqical or
historical site, structure. object or
building? Is the project in a known
arc:heological1y sensitive area? -1L.
19. Natural. Resources. Will the project
substantially increase the consumption
of an non-ren.eWBl:ll& natural resource
BUell as minera.ls. pr--ecioua metals,
pri..le: agricultural land,. natural goas"
oil. etc.?
20~ Mandatory Findings of Significance.
a. Does the project have the potential
to degrade the qual i ty 0 f the environ
ment,. substantially reduce the habitat
of a fish or wildlife .pecie~ .. cauae a
fiah or wildlife population to drop
below 8~lf-sustaining levels. threaten
to eliminate a plant or an.imal community"
reduce the number .or restriet the. range
of· a rare or andanqered plant or ~.nimal
or eliminate important example. of
the major periods of California historY
or prehistory?
b. Does the project have the potential
to achieve short-term~ to the dis
&dvantage of lon9-term~ environmental
9Qals? (A ahort-term impact on the
env ironment is 0 ne which oc curs in a
relatively brief. definitive period of
time while long-term impact. vill endure
well into the future. J
c. Doe5 the project have impaets Which
are individually limited, b~t c~~ulatively
considerable? (A project may impact on
two or more separa.te re.sources where the
impac:t on each resource is relat.ively
small. but where the effect of the total of
those impacts on the environment is
significant. J
d. Does the proj~ct have environmental
eff~cts Which ~ill cause substantial
adverse effects on human beings, either
directly or inairectly? x
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DETERMINATION
On the basis of this Initial Study:
~ I find the proposed pxoject COULD NOT have I. siqni£icant
~ffect on the environment~ and a NEGATIVE DECLARATION will
be prepared.
~ I ~ind that although the proposed projeot oould have a
significant effect on the environment. there will Dot be a
significant effect in this case because the mitigation
~sures described have beea ftdded to the project.
C7 I find the proposed projeet MAY have a signifioant effect
on the environment,. and an ENVDtONM!NTAL IMPACT UPOitT is
required ..
Dr. »ernard II. Gol~er
Prepared by
Environmental Specialist
Title
Date: October 1987
Michael Karanqio
Harvey' sta.nleY' Associate., IDe.
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E_",VIRONI"tENTA.L EVALUATION
l, Gp.olocy ~ Soils
R~.G\fal aud replAc~ment of portions of the eXlsting tra.pezoidal
concrete channel .nd replacement of bridges with associated
~xcav8tion and grading ~culd temporarily disrupt and compact
soil. The construction of the underground bypass Rnd di version
chann~ls would also result in eKca'stioD and co~paction of 50ils~
Widenine of tbe cbannel in small port ions or the upper reaches
.ay increase erosion on these disturbed soils until the5e areas
rC\fe.eta.te. Bank protectiC'n measures where propcsed would reduce
channpl erosion over the lona-tera.
Because excavation and construction activities are proposed
primarily for areas previou51y disturbed, no significant impacts
~ou]d result. Temporary erosion ~ay result from ~idenini of
cr'C'ek banks. This patentia) te.porary impact ,.:ouid be Iliti.l&.ted
by the use of erosion control .elbods implemented before tbe
Cir&t 8utumn r8jnrall~
Our-ln. con.truetioDt a.ir quali ty would d~teriorat.e in tbe proj~ct
vieiDit, as a result of the e.misaion of t-!:..hau15t. fUllles (roil
ccn~tructlon •• chine-:",. and support vehicles. and froa the
p["oduction of du.e:t~ Oust would prcHluce 8. tell.lporar.v annoyance to
ho.~ r~aident. adjacent to the creek bypass and diversion
C'bllnnels. D~JI;.t woulld be kept t.o a mi[]l.UIIl by the contraC'tor Dt;;
part or cont.rtict ~peC'ifications. ""i ti • .ation would in-;.·ol .... e
welt in. expo!let! soi 1 5urraces t 0 reuH">~ dust generation. limi tin.
~rBdjnc activities on c.'\:c~::.Ish'c!y .... indy Joys, a"nd frequent street
cleaning in the cons.tJ"uction IH'f'as~
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The construction uf the underaround ~Iilt&dero Bypass chnnnp.l wnuld
ch~nge tb~ rOIJrhl! and draina.c pattern of Matadero Cr~ck by
divert in. 9. port jon or tbe high flol.S to .a pl:lt"allel route tha.t
",,"ouJd re~enter the .ain channel at Sl point ",here capacity would.
be suffiL'ient. In addil ion, th~ .ii\'erSlOn or water from Barron
r:'r.·ck into Matadero Creek lJoultl dmnge the -COurse and. natural
dra.,ina"e l,atter-n by allowin.l waters from on"e .... atersbrd to enter
ano:her. ,'illlall cha.n~r.s in the alianlllent or MatDdero Creek are
81""0 vropoaed which lrl\'olve reducing thE nUJllber of sharp turns.
':OIlP. of theBe activities ,""ould result in sianiiicant nee_tive
impllclB. Floodl.n,( would be ei.cnificuntly reduced in the project
IlNae, l"e-liultin,l in pot:ii.ti.ve illlpucts related to flood hazard!!!.
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t..nters j f
sljJl;hl pot.ential rl1r COI.tDlldnalion of ."!8tadil"l"u Creek
to~ic materials are encountered in Boile where
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CXC&"stion is proposed. Where brid£es, underground culverts, and
ex~sting concrete chapnels are to be replaced, gr~und~ater that
i!"l f·onl.amln,,-t.erl with TeE or ot.her toxic chemicals may be
e11~o'Jnlw~ed. 1n uddi~ion, soils contaminated with toxic
che~icals mAy also be exposed. Soil and Iroundwater samples
alonA the const!"uctio;' area -rilht of way ... ould be analyzed by the
District to teat for hazardous chemical contamination prior t.o
construction where the potential for this possibility occurs
(based on known toxic contalllination sites near-by). In the event
that contaminated sa.ples arre found, a contin.ency plan. for the
containment or disposal of the haz.ard would be developed under
the luidelines set by the S~ate Depart.ent of Bealtb Services and
the Re.ional ~ater Quality Control Board.
Heavy ma.chinery used durin. oonstruction 'Would temporarily
increase the level or noise in the site vicinity which ia likely
to disturb residents located within 100 feet of the active
constiu~tiQn area. and to a lesser clearee. disturb residents up
to 400 feet frea the site.
A sound barrier is located alon. the Varian property adjacent to
the proposed bypass channel. Because ch~nel construction would
require openinl sections in this wall •• dditional temporary Doiae
fro. the Varian facilities would i_pact nearby residences durin.
the construction period. The noise impacts from construction and
froa Varian are short-ter. and are thus not oon.idered
sianificant.
Mucb or the project lies within portiona of Matadero Creek ~bich
are constrycted flood control channels lined with conCrete.
These channels are periodically maintained to remove Beal_ent and
vegetation interferina: with flood flows. Thus any project
activitie5s that would. affect vea:etation within tn"ese channels
'Would not have sia:niflcant i.pacta. The loss of trees and shrubs
alon. the Hata.Jero Bypass all&'MIent 'Would bave adverse iJqJactB.
Trees and shrubs would be replaatrd, bowever, .itic:atina these
illlpacta. (Refer to attached !iatadero Creek Biola1jlical I_pact
Aase8s.ent tor details).
New plant .peeiea Dnay be introduced into sreas that are
reve.etated. Altboua;b many will be native California specie.
found in nearby areas, other ornaaental species aappropriate tor
conaitions available Day also be used.
The disturbance resultin. from "excavation in open areaa such aa
alont: tbe bike path in Bol Park could encouraa:e the spread of
locally established weeds such as yellow star thistle and fennel.
Hi ti.lation for this poter,tial impact 'Would be accom.plished b:y
reseed in. and .aintenance of .ras&es al'ld other herbaoeous
species. The application of appropf'"iate berbicides 'Would a180
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reduce weed Qvertrowth.
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Thf' p:] i.inalion of landscaped corridor:! alar ... the proposed by-pass
l-lithin tbe Stl!1nford Channel area and along the bike path north of
Matbdero Av~nue would reduce the numbers of birds and other
~ildlife that require this habitat. Reveaetation would mitigate
ror t.he impacts of lost wildlife habitat. Bridge replacements
could reduce neslin. ha.bitat ror migratory birds such 88 Barn
SW8.110-..:, Cliff S'Wallow, and Black Phoebe. Miti.l8tion of these
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the suamer season after ~esting has been completed or prevention
iapac,ts 'Would require that construct ion activities be limited to ,
of nest ina: prior t,o co~struction. Certain :ni-,"ratory birds are ff
protected under the Federal Migratory Bird Treat)-' Act and cannot "-
be taken without a u.s. Fish and ~ildlife Service Per~it. ~
The creek is not known to support an an~dro~ous fishery.
The p~tential presence or the rare San Francisco forktail
d •• selfly (18chnura semina) was inveati.ated. No adults or
larvae were found on portions of the creek where the stream
bottom would be disturbed by construction Bcti vi ties. For this
reason, it is a68L1med that this species is unlikely to occcur
there, and that no impacts are likely to result to tbis 9peciea
fro. proposed project activities. (Refer to the attacbed
Hatadero Creek Bjolo.i~al A8BeS8me~t for further detai15J.
, . Public Controversy
Thf'! proposed construction of thr '1:ltndero b)~pa.as (re.~h 7B) has
resulted in objection by adjacent ~omeowners ~oncerned ~itb
construction i_pacts o.hrt l09~ of SCI ''''''!'n ing "'eaetation ~i thin the
Stanford Channel right of ~ey. RpnlLj_ning the A portion of the
bypass channel wi~hin the varian parking lot ha~ ~educed, but not
eliminated these ~onc~rng.
11. Transportation ~ Circuhltio1'!.
Two bridge constructionn alternatives are being considered: 1)
Closul-e of Greer, Louis and ROBS bride-es dur-inK construction or
2) sta,ed construction of the br-idges ""hi le perlDittinl tra.f'f tC
across tne bridges. The c01l'l.parati\·e .i.pacts or both options are
!=IhOh--n in th@ attA.ched table. A decision as to which alternative
wi 11 be s~lHctf!d wi 11 be aade subsequent to a public meeting to
L,~ hpld Deeeliber 9 And prior to r:'ollpletion of t.he final N"eCative
DIH; larallon. A cumulat:i Ye traffic impact ana1)"5i8 prepared by
d.t: consultin. fil"II of CH2M Hill is;; attached.
RAilroad ~rafric along SPRR .ould be maintained by e.ployinl
e.']ostruction techniques that would not impact trains. This work
..... i 11 be clo~ely coordinatp.d wi th the Southern· Pacific
Tran~portation CompBny~
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A traffic control plan would be developed in coordination 'With
the District, City of Palo Alto. and the eo~struction contractor
prior ta cor.struction.
Thl!!! construction of the Matadero Bypasa throui:h the parking lot
at Varian would result in t he lempcre.ry-loss of approxiJIIIPtely
lOa parkin. spaces 'Where oonstruction activity would occur. In
addition, about 50 .~re spaces would be lost for the ataSint
area, A total of about 150 ap5ce. would thus be eliminated for a
period of about 6 .onths, P1'esently. this parkin. lot is
underutiliz:ed and thus would aecomodate workers .&.t Varian evefl
'Wi th the propoaed loss of parkin. spaces ~ However, Varian may
expand i te. 1o'0rk force in the next three years, wh i ch would
"require the need for these spaces.
Boeeause the loss of apaces would csuae an inconvenience to
workers at Varian ebould e.ployee nu.bers increase prior or
durin. the construction period. lDeaaures would be necessary to
reduee the i.pact. If parkin. becoaes limited, additional
parkiu apaces could be provided b7 restripinl ,portions or the
parkin. lot for the 6 .ontb construction period. Substandard
atall sl.ze and arr~e1l!ent could increase the nU'!Il.ber of cars that
can 1:)8 parked on tbe site. The number of parkin. atalla
ell.iniated at one time could be reduced bJ stalin~ the
eOMtr:..action in thia area in two phases. Ho'tJever, this would
probably only reduce the 10s8 to about 100 stalls. Arran.ementa
would have to be aade in coordination with the Distriet, Varian,
and tbe contractor.
Where-a box culvert is proposed beneath the ~8tkin8 Johnson site,
ap~ro:'Ciaat.e17 25 parkin. places would be dire':tl,. displaced by
excavation for the underground box"culvert between stations 267
and 2E:8. C<Jnstruction equiJm!ent .torale could a180 eli.inate
approxi.ately 25 -Ilore park.in. stall. ~ In addi t i on I a<:lCe8a
between a series of parkinl Iota on the Watkins Johnson site
could be disrupted if the drive~ay waa bisected for the culvert
construction. The loss of approxicately 50 parkinl spaces would
result in an inconvenience to ~orkers 'Who 'Would be required to
park up to 3/4 of a mile away froll the building: in 'Whicb the,.
work (David Burnhall; Manaa:er of Services and Ple.nnins , "atkins
Johnson. Telephone conversatioD. September 25, 1987). Blockinl
of access to the parkin. iota to the north would &eriou.ly
disrupt parkin. for many e.ployeea. .
Pedestrian circulation betueen buildin&8 could also be disrupted
if a cove rod walkway between two buildinjls were closed d.urinlil
eanstr"uction.
To .itl.ate for these impact. the followin. could be done;
To _it-i.ate for inconvenience to employees ".,h.., would have to
park in outlTing parkin. lot •• the central parking lots
should, if feaaible, be re-striped to accomodate more auto.
te_porar;lJ. durin, the construction period.
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To maintain automobile access between all parking lots on
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the ~it~, the driveway access should be maintained by ,
lpn'porarily brid~in~ tbe channel excavation to &llc~ car
movement throegh the a~ea.
To maintain pedestrian access between buildin.s, th~ box ,
culvert should be tunnelled beneath the covered walkway,
Approxililately ten parklnl spaces at the Veterans Administration ,
Hospit.al 'Would be temporarily lost. durin" construction of an:
undergrr")und i:ulvert at, approxiaately Station 266. The 1025 of
this sIIIal1 number cC parltir,g places is not considered ,
si.ni fi.cant.
A sli2ht te.porar~' jnc:rease in trafrl:: h8:Z.ards~ primar'il:y to ,
motor v~hicles, ~ould result fro~ the phased replacement of
bridges along the project ali"mllent. This would be the result of
narrower lanee acrOss the bridae span and the fact t.hat t.raffic
lanes would CUT'VP. to one side of the bridce. W&rnin. ai.-DB •
not i fyina: traffic of bridce construction 'Would be poBted~.No r
951nificant impacts would result. , ,
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CORRECTION !!
THE PREVIOUS DOCUMENT(S) MAY HAT/E
BEEN FILMED I}.,TCORRECTLY .....
RESHOOT FOLLOWS
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A traffic control plnn w~uld be developed in coorc ination wi tho
the District, City ot Palo Alto t and ~he canstruction ~ontractor
prior to construction.
The const.ruction of the Mat.ade-rc BypQ.ss through t.he parking loOt
at Vari~n would result in t he temporary loss of approxi.ately
100 parkin. Bpac::ea ~nere construction activ-ity would occur. In
&dcition, about 50 .ore spa~e8 ~o~ld be lost for the sts_in.
area. A total of about 150 .paces wbuld thus be eliminated for 4
period of about 6 .onths. Presently, this parkin. lot i6
under-utilized and thus would accollodate workers at Varian even
wi th the proposed loss of parkin. spaces. However, Varian aay
expand ita work force ill. the next three yeara I -which would
"require the need for these 8paces~
Because tbe IOBa of apaces ~ould cause an inconyeni~nce to
workers at Varian should employee nuabers increase prior or
durin« the constr .... ction period, measures would be necessary to
reduce the impact. If parkina becomes licited. additional
perkina: spaces. eould be provided by reatriping port.ions of the
parkin.. lot for the 6 .on:th cen8truetio~ period. Substabdard
atall size and arrangement could. inc:re&ae tbe number of eat's tbat
can be parlred on the site. 'Tbe number of parkin« stalls
eli.iniated at one ti.e could be reduced by stalin; tbe
c-onatruction in thia area in two phases. HOMever I this 'Would
probably only reduee the 10as to about 100 stalls. Arranleaenta
would h.ve to be •• de in coordination with the District. Varian J
and the ecntracto~~
_here a box culvert is proposed beneath the Watkins Johnson site.
appro:xi.IDR.tely 25 parkins: places. would be directly di splaoed by
excavation for the under.round box' culvert between stat,ions 261
and ::68. Conatruction eQ.ui~ent storaa:e could alao eliainate
approximately 25 ·.ore parking atalls. In addition. acc:e5S
between a £eriea of parkin. lots on the Watkins Johnson site
could be disrupted if the driveway was bi5~cted for t.he culvert
coftst.ructiQn. The loss ef approximat.ely 50 parkin .. spaces would
refiult in an inconvenience to 'Workers who would be requil-ed to
park up to 3/4 of a mile aws.y from tbe bUildina in which the7
work ,David Burnha., Manaeer of Service. and Planning, 'Watkins
.1obns.on. Telephone conversation, September 25, 198;». Blocking
of access to the parkin. lots to the nOrtb 'Would seriously
disrupt parkin. for many e.ployees. .
Pedestrian circulation between buildin •• could a180 be disrupted
if • covered walkway between t'Wo buildinlB were clo&ed durina:
construction.
To .itilate fOoT these impacts the followin8 could be done:
To .itia:ate: for inconvenience to employees who ",ould have to
park in outlyina parkin. lots, the central parkin. lots
should J if feaaible, be re-striped to aceom.odate IIIoClre auto.
te.porarily. durIn. tbe conatruction period.
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To maintair, autolnobile access: between &1 i. r,arking lots on
tbe .A.lt~. the dri ... eway access should be maintained b)~
tpn'porarlly bridlinl the chann~l eXC8vat~on to allow car
.ovement throuah the .~ea.
To mAintain pedestrisn access between buildings, the bo~
culvert should be tunnelled benealh the covered 'Walkway.
Approxi.ately len parki nl spaces at the Veterans Administration
KO"ipitBl l.'ould be ·telhporarily lost during construct-ion of all
undf!t'"crl"lund culvert at approl(iJaately Station 266. The loss of
tbis 6 .. 5.11 :rllA.oer o"f parkin.r places is not considered
si Inl r:i.cant.
A sliCbt teaporBry increase in traffic ha~ards. primarily to
.otor v~hicles, ~ould regult froa the pbased replace.ent ¢f
bridaes alon. the project aliln.ent. This would be the result of
narr-ower le.ne.&; across t.he brlciie span and t.he fact that traffic
lanes would ourv~ to one aide of the brid~e. Warnina siens
noti tyina tra.ffic of brida:e con.true-lion would be po-sted. )#0
s!anifieant impacl6 would result..
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Alternat ...
'",pact
Tln~ of Construction
Cost of Construction
Trees. lawns of Immediate
Resfdents
Tr.ffle
£mergency Access
IMPACT AllIILYSIS
Road Closure Versus St_lled Const,uctlon at ----n ••• .!: Road, l.otif .... ffij".d and Ross Road
Ro.d Closure
Approximately 3 months each for Greer, loul.
and Ross Bridges. The thre. brIdge, wIll
be don" one at a time.
ApproxlNately $200,000 construction cost
so.'ngs. ($60,000 to $70,OOO •• a.lngs for
.ach site)
Will Impact only area Immodhte1y adjacent
to the bridge ••
P@dp.strians. bikes and Clrs will be
re-routed to Idjac@nt stre@t5. Adjacent
slre@ts have adeq~at~ c~p.ctty for the
additional trofflc. Relldent. along
adjacent streets will expert@nce somP
Increase In through traffic. Entire area
affected up to 9 ~onths.
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Staged Construction
(Construction under Traffic)
Approximately 6 months eaclt '0. Gre.r.
louis afld Ross brfdges. The thret:!
bridges Itay b@ done at the same time.
Const~uctton cost is approxfmatp.ly
1200.000 more than rQad closures.
Will impact trees I ~ ... ~n-i & drl veways
within 125 1 ± from centerline ot cr@ek.
T,.ffle will be aceommod.ted th.ou9h
con~tr"ctton sHe. Adjacent stt"e~ts
will have SQffle increase in thru
tr.fffc ~olume dup. to th~ 'nconvenience
of pa~stng through constr~ctton site.
F.llttr~ area lIffect.ed up to 18 months.
According to Palo Alto Fire Department, will I "0 significant Impact.
require 45-60 mOre seconds for response time
whtrh h withfn the accepted normt11
response time. All agenCies will be
nottffed rp.gard1ng times of clo5ure~.
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12, Puhl in S<,rvices
I r f.riIJx, .... Hoi'" ,;lh,.,~d UI trltrri~· • .'Ir.I'C5S r,'f" fi rl~ and pol ice
pr'flt ""1 j uti and for 9r.:hu(J t bus routes IoIOC I C hI'! a It err:d. A tra rf j c'
1'(J'llrul plan, devf!loped in coord!.nation !-lith the District, City
IJf ralo Alto. and lh~ cDnstruction contractor, would reduce any
potential iapaete of traffic disruption as i t r~lates to public
sen.-ice.
As a re.ult of the 8cquiaition of easements alon, tbe upper
portiona of Kat.adero Creek, along with t>&sements for the bypas.&
811d diversion alisnaenta, the District will increase 1t2
responJlib11i ties for flood protec tiCln in th ese corr idol's.
Increased IIlII.intenanoe or channe 1 EO ~ould re su 1 t r along wi th
potential emer.ency repair ~ork on existing and proposed
construction. No si.cnificant impacts a.re associated with these
additional responsibilities. .
13. Utilities
There is a p.:-.tential for teaporary disruption of a:as~
electricity, telephone, and water service in some locations,
c!lpe-cially-at brid.e replace.ent sites. In addition, an IS"
sanitar3 sewer pipe within the Di~tricL's ~xisting b~anford
C-hannel rilEbt. of way would be ] owe red ",here it crosses the
prop1>->ed bypass. Street lilbts and associated wirina: ,,"ould be
r~lOC'!ated where they would int1!rfere with construction of tbe
hypass channel. Stora -wat.er drainBS'e wouid not be affected by
ttl!"! project.. The i_pa..::ta to utiliti~s would be temporar-y and.
in,:;iani licRnt..
15. Public ~ Environ~ental Healtb
A small portion of the existinz trapezoidal ~oncrete channel will
be replaced by vertical wall channels. Be-CRUSt.· \lE'rti cal channels
are di fficul 1. to cl i.b, they present an incre8~t'd hazard to th~
public, espp.ciallr t.o children, in th ... .event of a fall into the
channel. Steel :fI.afety ladders a.re included in the project
r.ropo.at as .ili.gation for this SafCL3o" haz.:lrd. Wher-e vertical
wall ~harlnel ~eetions are constructed, six-root chain link fence
'Wou1r1 prF'v,mt younS ehildr-en (rell falling into the channel.
nU! eXf~llvat,ion work in por-tions of tne prajf'ct a.rea required (or
con<;1,ru~t.;on and renovation may encnuntEr to'dc materials in the
soil 'or 'Wate-r. Thill mi.-ht cause a bealth hazard to construction
work~rh or npnrb7 resi~ent$. Soil ~nd ~ro~ndwater along lhe
('("I'Is;trll~1 ~ on area" right of Way would be analyzed for hazardous
.~h!'!.it."al c'Ontamination whl!re the potential for this possibility
lJ("c'urR (b"sp.d em known tc.lxic cant,a.illation sites nearby). In the
f'!f''\:'ent of finding-contamlnated sampl es, a cant inlency plan for
the ,conlRin&ent or rli~prlsal of lile hazard would be developed
prlot" t.0 t:Uil!::it rllr-tion , in nrde-r to pn·vent bt>alth ha.zards.
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16. A#O'sthetics
Wbere r.onstruc t.i on activi ties .are proposed &0] ong the exiating
C'onC'r-et~ lined creek channel downstream of El Camino R~Bl the
project has low visibility becauze it i8 located behind bac~yard
fence:!! and has few of the attributes of a natural riparian
corridor. The priaary area of aefl;tbetie eoncern i£ alone tbe
underaround bypass channel within the Stanrord Channel area
(Bypass Station 2+00 to 15+50)~ alon. a bike path (Bypass Station
27.00 to 32+00) and in and adjacent to Bo1 Park (Diver_ion
Channel Station 0+00 to 22+-.00) ~
The cona"tructicn or the bypa •• wi thin the Stanford Channel
easement yould require the clearinr of a laraE number of native
and orne.ental trees and shrub8, e8p~cial17 a few larae Monterey
pines. These plantinC& provide a screen betw~en residential
backyards and the Varian property. The trees and shr-uba limit
view!! troll. residences to the Varian blJildinl&, 3nd prollide 80.e
ps:vcbololical benefit from noise ellanatina froll tbe Varian
property. Clearing l"ol.Jld te.porarily open view. to the Varian
b;..li Idin'B and sound wall on the 80utheas t boundary of th~
eaaellent. As part of the project, restoration of plantings will
be i.plemented. The lar.eat trees will be allowed to reaain by
aaintAinina the excavation zone close to the Varian Bide to the
northwest. No Ions-term silnificant i.pacts yould result.
An ~ea of apprroximately one-balf acre o~ the west side of the
bike path would be cleared of ve.etation due to construction of a
te_porary bike path. Thia .trip of native and ornaaect.l treea
and shrubs provides a buffer between the bike path and
residential backyarda. In addition, it ia part ot" a Ireen belt
corridor ,,"iewed by recreaticniata pas.e.ina throLlah thia linear
park. The coaplete 10 ... of thia ve.letation would be an adverse
short-term aesthetic i_pact. Miti.ation for these impact. would
include developin.l .. plan for reve.let.ation of this aite and t-o
illplement work. ilmediately after construction i8 cOlllpleted. A
.aintenanoe plan would be cieveloped to assure the e.&tablish.ent
of these plantin.lSl. Over ti.E, these aiti.ations would offset.
the aesthetic impacts.
Temporary aesthetic impacts would. occur at the bl'idse crossina
~here construction equipment, varnin.r: ai.o., and excavation
~ctivity would be hi_bly vi.ible~ Beeause these conditions would
be te.porary, no .i.nifioant iapact would result.
174 Recreation
Because the bypass and diversion channels propose utilization af
a _~i.ht-of-w.y presen~ly used for • bicycle path, there is
potential f.or i_pacts to recreationiata who use this p .. th~ The
exi8tin. bicycle paths ~ould be detoured. bowever J aB part of the
projecti detour paths would be provided 80 that n~ diaruption to
access in thc.~ areas would occu~. ThuB no sianificant i.pacts
would l"esul t.
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18. Archeological/Historical
Th~ p.rojC(:l. 15 Joc-.I:lt.ed within an r1rch~oloi"icall)o' sel1sitivt: arca.
A pf'Clfes6ional archeology fir., Archeological Resoorcp.
M~naee.ent. performed an archival search of the S~ate records and
It. liurf&cf'! aurvey <:>f the richt of WBy subject to disturbance by
the project. The cul tural .i"'eaource e .... aluation report contains
reeo_endat.iona for Ili ti latina potential impacts t.o archeoloaical
resouroea. These reco •• endations ~111 be illiplemented by the
Districl prior or dl.!ring construction .os appropriate. Selected
portion. of th~ archeololical study are attached.
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Mat&d.r~ and Barron Cre~ks 8101oaie.l and
Viaual Re8ou~~e. Iapact ~A.e •• aent
S.rve7 • Stanley Assoei.t~ •• Inc~
Micb.el Maran.to, Jnvirona~atal Pl&nn~r
for
SCVWD
5150 Al .. den Exp~eB.wa7
S&n JOKe, CA SS116
Attn: Dr~ gerni~ Goldn~T, Environ.ental Specialist
Deee.ber 3. 1981 file 110-:1&0-01
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INTRODUCTION
A biologist evaluated the ve,et.ation and wildlife habitat villue
for the proposed project. A Bet of aerial photos (at a ~cale of
1":50'), a street map (1-=0.5 mile), binocular& and field
identification Ituidea a.sisted. in the analy&is. The purpo~e of
this report i. to identify nati~e vegetation and wildlife habitat
values present at the project site. Animals and plants that were
obSErved vere noted. However, a eo.plete inventory of plant and
ani.al species was not atte.pted. Note~ were recorded concerning
vegetation wi thin the channel bOt-tOil, bank slopes, and the area
Cro. the top of bank to the outer edle of ~he ritht-of-way •
Ve.~tation adjacent to the creek channel was also noted wbere it
was present. Areas of natural velletation were classified uBinll
tbe syste. of CAlifornia habitat types developed by Cheath •• and
Haller (1915; whioh was .ore recently updated by Holland '1986J~
Native plant oases are aa deacribed by Munz and Keck (1973).
Horticultural plaDt apeeiea and varieties follow the Sunset New
Weste~n Garden Book 1197S).
For plannin" purposea. the atudy area was 6>.lbdi,,·ided into eleven
reactle. alon. Katadero Creek. Adoi.i tional project. areas include
the Hatadero Bypass and the Barron C ~ek Diversion Channel~ Each
reach is discussed in further detBll below with respect to
ve.et.Btior.J wildlife. the impaeta of' the project on biotic
resources, ~ftd .iti,ations that would redu~I' to a level of
insi"nifieanc~ or eli~in8te any noted i_paets.
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POTENTIAL SPECIES OF CONCBRN
The aquatic b~bit&t
utilization by th~ San
of lhe creek bail
Fra!'l.cisco fork-tAiled
tbe potential for
dam.elfly (Iachnura
leftlina,. This diminutative relative of the dra80nCly (both in
the in89ct order Odonata' is classilied by tbe u.s. Fish and
Wildlife Service as • candidat~ for protection under the Federal
Endsn.ered Speciea Act, cate.or~ 1. This liet includes taxa for
'Whicb there i. sufficient biolo.teal inforaation to 8upport •
proposal to list a~ endanaered or threatened (COFG 1996). This
specie. is known fro. acattered loealil7 ~eeord. to inhabit
eoaatal areas fro. Santa Cruz Count7 to Karin County. A record
fro. 1949 ia known for Sharon f • Pond on the nearb7 Stanford
caapu8 (Garriaon and Hafernik 1981t. Tbeir f111bt period i8 fro.
late March to Nove.ber (Dr. Roaser Garrison, per •• CO"4).
Da..elflies have,an aquatic larval ataa. known •• & ny.ph OT
naiad 4 Tbe brown larva is 1 inch or Ie.. in size and prcbab17
take. 1 year to aature.
in backwaters or creek. and in
aeneral17 are found in alsae .. t-.
pond.. Tb~7 are known to inhabit
both natural creek. and concrete
per.. eo_). A.lona Roache. 1,
babi tat would potentiall,. be
channel.. CDr. Rosser Garrison,
•• 5 and S, where the aq'Uatic
i.pacted b7 propo8ed projeQt
construotion activitie •• & surveT wa •• ~de for this speeie.~
Adult~ were searched for in e.er.~nt veaetation, and 16rvae were
dip-net.ted for in .. ts of alaae .and other ve.etation. Little
eui table bahi tat was found. Dipnet aa.plea revealed no larval
damselflies. Adult da.self11es were observed and collected but
~ere identified aa oo •• on .pecie8.
preli.inary damselfly survey revealed a
Tbe results of this
low potential for" the
utilization of these portiona of Matadero Creek by the Sail
Francisco lork-tail daaaelf17' Thus, i_pacta to this .peciea are
judced to have a low probability ~f oecurrin,~
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EVALUATION OF PROJECT AREA
REACII 1:"at.~1.Q Creek -Pah.l Alto Flood Basin ~ Bayshore
Fref'!!:I'Bz
(!=itatian !.Q. ±. Q.Q. to II ± 00)
Veget.ation. Extending fro~ the Palo Alto Flood Basin to the
downst,rea .. side of Bayshore Freeway, this 1:100-(00t section
c-onsi&t.s of III t.rapezoidal eartb cb.nnel approximately is feet
wide near the south side of East Bayshore RGad4 Tbis cbann~l
contains a thick arowtn of cattails '~spp.). bulrush
(ScirpuB sp.» I and :stinllinl: nettle t ~ holosericea) Much
of the rest of the cbannel contains a dense .Jrowt.h of willow
(Salix spp.), witb so.e California wal~ut (Juglan& bindsi). An
exotic specie., giant reed tArundo donaxl. also .rows within the
channel. In .ora open areas. bet~een ~llloh and California
walnut .row thicketa of introduced HimEllaya blackberry (Rubus
uroceru.) and Califonia r09.e IRosa calirornica). Salt.rass,
(Distichlis !lI2icata). introduced periwinkle ('linca Uior) and
discarded plant cuttings. tires, and otber car parts were .@'en
alan,,-the northp.rn bank.. The channel and bank vegetation is a
dh.lurbed fora of CeDl.ral Coast Riparian Forest (Holland 1986).
At the top &r the bank .row weedy ",i'sses IA .. 'ena barbata, Brollllus
!IIolljs) patches or int.ro~uced tb istJ.. I C i rs 1 \Jill sp.) and fennel
(Foenlc:ulull v'Ulgare,. A gravel parkin" area bare of ve,etstioll
li~s adjacent" to this weedy erowth at the top of the bank •
• 'ild] ife. .4. variety of ... aterfowl and wadina birds would be
~xpected to ylilize this reach because of i~9 close p~oxi.ity to
the Palo Al ~D Baylands. Ecololical Preserve. A Com.on Gallinule
C Galinule chloropus ~ 'Was obser\led, !'Ial!ard« ~ platyrbynchus) r
Coot t[ul ice. aaeric&l'la.l, Great-blu~ H't'.:ron (~ hcrodias) and
Green-backed B-eron lButorides ·.:ireitOcens) would also be expected.
O~h~r birds that utilize the e.erlenl veletation such aa Red-win.
Blackbird (Acel_ius. pboeniceus) and Black Phoebe (Sayorni6
nit::ricBns) wOIJLd 801'50 be ex.,.~cted, House Finch tCarpodacus
~~~ and Hournina Dove (Zenaidul"", .acroura) were observed
in thp. opr.n nreas a~jacent to the rlparian habitat,
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~o adult. or larval dalU:iielflie9 were observed. Dipnet samples
int·fuded dr'B.onfly larvae, dytiscid beetles, crayfisb. lAol!:quieo
(Jab ,Garobusia .ffinisl and stickleback (Gas~erosteu8 acule&t~8).
laRasta~ The propo&ed pedestrian access ramp would lead era. tbe
arayel parkine: area acrOBS the bank to the creek bot to.. This
wo'Uld eliainate an already disturbed area cantainin. discarded
car part. and patches of introduced invasive plant.. The
concrete channel li~in. adjacent to the bri~e would eli.inate a
.... 11 area of dense bulrush and cattail •• Becau8e the area i •
... 11 and cl08e to the Ba:rsbore Free" .. ,., wildlife Uge of thil!
area ia probabl,. low and therefore the i.pacta ot the prClpoaed
project would be 8aal1. Construction aotivities would have a
teaporary i.pact on ~ild11fe use in the project vicinity but
would alsc be considered of low l_portance.
~ 2: Katadef'O Creek -&aDhore Freeway to Greer Road
(Statio" 93 :!:. 00 to lQ1 +OOl
Vegetation. Reach 2 con.lsts of a 1400 foot Ion. trapezoidal
channel about 60 feet vide at the top with·aacked-concrete _idea
and a 40 foot natural bot to •• Concrete lines the bank adjacent
to t.he Weat Bay.hore 8rid.e cros.ina:. Ve.etation conaista of
thick patches of e.eraent veaetation Alona the toe of the banks.
Theae plants included cattails, aquatic .Ira.sea (P.aap.lull
dilatatu.J, nu~ ae~e (CyperuB gp., and wild auatard (Braaaica
.eniculata) • Addi tional plante include spiny clotbur I Xa.nthium
!lL~'. cocklebur (Xantbiu. atruaariu.), atin.in« nettle and
~aBtor bean (Ricinus cClIllJiUni., , im .. &&ive non-native speciea. A.
strip of eaerlent ve.etation about 20 feet lon.t conal.tina
priaarily.of water-lovin .. .Ira.sea (Pa.palu. dilatatull', .were
observed where &ediaenta collect within the channel near the
bridlo.
The aacked-conorete channel sidea have a nealible arowtb of
exotic .raSBea arowina in cracka. Tbe dirt aaintenance road. on
both aide8 of the creek are bare of v •• etation. On the outside
edae6 of the .aintenance road are plantin •• of Allerian iV7
(Reder. canarien .. is), oleander (Weriu. oleander', Italian
bucktborn ·(Rha.nu8 alaterna}L ice plant (CarpobrotYI eduli8), and
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pampas eras!ii (£2rtaderj_~ tubata) A few volunteers of na.tive
eoyote brush (Baccbaris nilularis ssp. consanguinea) and exolic
(C!nncl nl!io "co,," in thi:::; area. P] &r:tings a.t the fences or
bn.ekyurd prl)pertie!oo lot) the west include a .... ariety of I.>rnaraer:.l.lll
plantin.lB 81J(.~h a8 Californioll pepper tree (Schinu.s lIolle), purple
plu. (Peunu.!. cerasiferal ana .lossy privet (Ligu8trullI lucidu!ZI).
the cattails and other thick elfler-,ent vegetation in
the channel bottom provide coveX' flnd nesting habi tat for several
'Waterfowl and stream -as'Sociated birds. This" type of wetland
habitat is better developed downstream beyond the Bayshore
Freewa7~ A pair of Pied-billed Grebes (Podilxmbus podiceps) ~as
observed in the channel alona "With two Mallards. In the water,
carp (Crprinu8 carpio) .nd .osquito fi5h were seen near the
surface.
The cenersl lack of .... e.etation alon .. the sacked-concrete bank.
and lI&intenance roads provides .. arainal habitat for wildl i fe in
t.heae areas. However .opher tunnell and observations of Black
Pboebe and Mourning Dove indicate some wildlife use of this
portion of the aite. A nu.ber of 6on«birds ~ould be expected to
utilize the adjacerlt vlantings O!l the rillht-of-way a.nd in nearby
rea idential backyards. A Brown Towbee (Pi P i 10 fuscus} .an4" a
&ckingbird (Hi_us polrllottus I wer.. observed. Other expected
Iiopt!-Cie. include Houl5e Fioch, House S ..... ~' rrow (Passer do.esticos),
Bre .. 'er's Blackbird IEuphagu.s cyanocechalus), and Aaleric~n Robin
(TurduB .ig~ato~iuB',
Tbe spaces beneath rand cros.&inls pro"'ide shelt.er for 'Wildlife.
A dead ba.rn owl ,I.i...t.2. alba) was observed adjacent t.o Bayshore
Frcewa~ durin. July of 1987 (Keith Whit.an~ pers. co ••• ) and
wbit~wa8h on 8 ledae below the ~est Bay.hore Road bridae
indioates the use of the bridle for bird r~ostine. Other birds
such as B!6Ck Phoebe and several swallow species may also utilize
these brt~ea for neatin ••
Impacts. The place.ent or concr~te floodwalls at the outer edee
Dr the aaintenance r~ad8 would not r~sult in any ai.oificant loas
of ve:letation or loIildlif~ h.abitat. So.e plantinaa at tbe outer
ttd.e of the right-of-way Ita)'" b~ T"~.oved or p!'"1.med to 8110101 for
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construction of the wall, but the-liE teznporary impacts 'Would be
ineicnifir:&nt. The construction of a .aintenanee ramp, and a
benet'! beneatl1 Bay.here Freeway would not affect any ve"etation.
bu.t could disturb any ",'lestina or roosting birds utilizinl these
brid.les durinJ th.e .prin,l 'Beason. Construction of Ii concrete
channel botto. De.~ the Bay.hore freeway brid.~8 would result in
losses of a ._11 •• ount of eaera:ent veletation. This i8 not
considered & significant impact. The removal of an abutment and
backfilling of a ... 11 irreaular-ahaped portion of the bank will
have no biolo.teal i.pacta.
Mitigation. To reduce potential impacta to ne.tin~ birds such .s
swallows and Black PboebeJ construotioc activitiea under the
bridae shOUld be postponed until Destin£ i8 completed if active
neats are encountered durin. apr in.
Alternatively, nestina: can be diacoural:ed
chicken wire on the bottoa at the culvert.
or earl y • ua_er •
by the placeaent of
J!I6gI 3: Hatadero Creek Greer!Hd12 Cowpe:r Street
{Station 101 ±. 00 to 153 ±.!!.l
Vegetation. This reacb con.iata of a CO.Dcrete t!'&pe:z.oidal
channel uith a channel botto. 'Widt.h of-13",:,20 feet. Veletation
withih the ehannel consiata of .at. of allae and oec •• lonal
patches of watercrea. C Rcrippa n •• t.urti UII-aguatlcwaJ. Nut. aedae
cl'Uaps ~a8icnall)'" are found at the toe of the chann~l .lope~
The concrete banks are bare of veaetation, as are the dirt access
rcads that run-adjacent to the channel. Chain-l ink aDd wood
backyard fences abut the cbaDDrl ri.lht-of-wa". Plantint:. within
the back7ard bordera i.nclude ba-boo lBa.busa s,P.), Chinese el ..
{Ul.u8 parvifolia,. pepper 'tree. purple plu., Mon,tere7 p'ioe
1.E.1n.Y.!. radiata). firet.born CPyracantba app.), bott.lebZ'"uah
(Calli,teo.on ap4), .10887 pri\·et. euoalyptus (Eucalyptus -ap4J,
California walnut, apple i~ .p~ •• and Italian bucktbcr~.
Occasional volunt.eer tree. and ahrubs arow between t.he
residential propert.lea and the concrete b.~k edlr. These include
• .all (Ie •• t.han 6 r~et tall) California walnut. Chineee el_t and
co".;;t.e brush. Vinee, eapecial17 Allferian ivy, co_only spread
int.o the riaht-cf-wa7 from the backyard laadacapina.
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\I.'ildliCe. Wildlife use of thiIR. reach is low. The only ... ildlife
"'ah~ tilt avai lable consists of the backyard plantings that grow
adjacent to the creek riEht-oC-uay. A number of birds ~ere
observed within the re~idential landscaping. Thes@ include House
Fincb~ Scrub 3ay (Aphel09oa. cge~ule8censJ, House Sparrow I Anna's
numlRinabird C Cal ypte anna). Brewer I Iii Blackb i rd I anet Mournil\J[
Oove~ An active nest of a Barn
Road Briclll:e. Tbe creek channel
Swallow was seen beneath Greer
1 tsel f offers little wi Idl i fe
habitat value ex~ept for the presence of wBter.
Iapeet.a. Tbe construction of floodwalls af'ld
modification would have no biolo.ieal i~pacts.
of the Greer Road B~id,e could destroy neBt~ of
maintenance ~amp
The replacement
Barn Swallow.
Mitigation. To reduce iapacts t" ne&tin, bird-a beneath Creer
Road Brid.e, construction activitie8 should be postponed until
nestin. is compl@ted it active nests are encountered durinl
sprina or early fiu .. er.
RRACR 4-: Matadero Qr€l'ek -~ Street !2. A:!.u. Street.
(Station 153 .:t 1£ to 175 +451
Ve-Metalion. Reach" consists or R 'trapezoidal concrete channel
~xtendin. about 2,200 l~et. Patch ~ of thick al.ae mata and
watercress .row in the cbannel. ~Q veaetation arows on the
ebannel aides and only a rew areas ha,,·e any plant life arowing
between the concrete channel sides Rnd the re&idential backyards
adjacent to the creek !·iabt-of-~ay. One such area neer tbe
Br)"I1nt. Street Bridlle consisted of & thick ,Iro...-tb of eiant reed.
Adjacent to tnis site was an area planted with cactus (Opuntia
8p~) and trees or apple and junlper. Adjacent backyards coctain
a wide variety of non-native ornaMental trees and shrubs
ill(:1uding: oleander. firethor.n, Cape plullbaeo IPlumbago
UUT'ic:ulat&), California pepper tree, \o.:alnut, oranae, bottleb:r-ush,
pn.t·grannte CPunic~ granatu.) and Monterer pine. A larae
S i I .. :rian cIa extends 'ou.t froR one backyard to provide a partial
l:anop..Y over the creek. Pas.inn Cruit vines (Passif'lora sp. J
(,k~"n8innal1y Irow over fences into the right-oi-way ..
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\I'ildlife. The channel ve.etation provide8 minimal Idldlife
habitat. Black Phoebe was obaerved within the channel. A few
other bird species sucb aa: Hoy.e Fin.ch J Hockin.bird., and House
Sparro~ t~pical17 associated with the nearby orDa.ental
vea:etatton Nould be expected in this area. No dr •• onClies or
ds.seltlie~ were observed. Cipnettin. aa.ples taken betweec
Cowper and Waverl, Street. revealed no daaaelfly larvae. Aquatic
oraenis .. observed include aaphipod •• anails, and mayfl~ larvae.
Iapacta. The placesent of flood 101.11s alon. the channel banks
~ill have no .i.nificant iapacta to vea~tation or w11dlife~ The
proposed widenin~ of the channel betveen Cowper and Waver17
Streets would be unlikel:t to effect. the San Francisco forittail
daaaelfly_
~ 5: Matadero Creek -Alas Street ~ Park. Boulevard
(Station 115 ~ 45 12 182 t ~,
Veg'tatian~ Reacb 5 consist. ot a concrete trapezoidal channel
extendiDI 800 feet fro. the down.treaa .ide of Alaa Street to the
downstream side of Park Boulevard. Within the channel bottom &
t.hick srowt.h of waterere •• and mat. at a1".e were observed in
the slower .ovinz portions of the creet. No veletation was
obaerved aD t.h.e channel banks or alon. the outer ed.e. of t.he
ri.ht-of-~ay except ter an occaaional .eedlinl p .. p.a ,Ira •• , tree
of heaven (Ailanthus altiaa! •• ). and coyot.e brush. Adjacent
orn •• ental plantin,8 jnclude Cape plu.balol oleander t &10.87
privet .nd I'Jonterey pine. A. ,Creve of pepper trees eonatatin" of
8 trunks ranaina fro. about 1~ to 20 inebe. dia.eter brea.t
beilht (dbh) I'.ro~ adjaee-nt to the old alian_ent .and are on the
propoaed new ali.n.ent~ Approxiaately 20 eucalyptul tr ••• alone
with .everal AU8t~ali&n tea .hr~b& (Leptosperaum laevi,atua) are
located alona: tbe Palo Al to electrical ,ub8't.ation where the new
creek alian~ent is proposed~ The Eucalyptue trees bad recently
been .tubbed back to approxlaately 15 feet4
Wildlife. The Southern Pacific Railroad (SPRR) overpass provides
roostin. and neatin, areas for introduced Rock Doves I pi.eons J •
Tbe channp.l provides 80.e habitat for Black Phoebe. and aeveral
apeciea ot swallow hunt. for insects iD this area. Tbe adjacent
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backyard habitats attract House Finch and c.ther species of
songbirds typically found in city and suburban surroundings.
Adull dra~onflje5 and blue-colored damselfli~s were observed
within the channel. Dipnettinz saz~les revealed snails,
crayfist:!j mayflies, dytiscid b-eetles, WorlllS, and am.pbipods.
Slick1eback and l!:osqlJito fish "ere also observed. No adult or
Jarvae of the San Francisco fork-tail damselflY Were observed.
Imp8cts. T~ent7 larae eucalyptus trees and eiaht lar.e
California pepper trees would be reaoved as part of the project.
The proposed project includes a plan to plant trees with-'i.n the
for.er creek ri:bt-of-wai as Dililation for loss or the
&ucal)-ptus trees.
Re.oval of tbe pepper trees 'Would reduce roostlnl babitat fer
bit"ds in tbe area, a low-level l"le&'liltive hlpact. Tl\e 10s9 of
(',hnnhel veletation as a -result of construction of a nel.' channel
alian.ent would resu!1 in mini.al i.pacts to wildlife because of
.:lnillal use by animals in this area. Tbe loss of roostin.r and
n~stin. habitat for pi.eons beneath tbe SPRR bridge is not
sjanU'icant., No .impacts to the San Francisco i'orktai1 d~.selfly
are likely to result frOB the proposed project,
The 20 e:.:.calyptu~ tr "LS and pepper trees to be
reaoved loOilhin the old alignment 'Iowl,.;!d be replaced ""ith nati\'e
trep.s D.nq Bhrubs. Potential ll"ees j rwlude Cal i fornia sycamore
(Platanus r.at('P,;D1osa" ",hiLe alder (Alnus. rhombifolia', flowering'
.... h (FJ"axinus velutin."l \-ar. cor'iacell), Cal iforJJia black ",·.lnut
Cl.!lal.~ hindeii,. Freaonl cottonwood {Populus freMontii" coast
)ivt!! oak C9w;:rplls ~rirolia), awl \·n.lley oak 12..uercus loba!:.!.J.
ShruhR t.o consider inclUde various species ot deerbrush
H~,!·!!ft0.!."U~ spp.} I to.,,·on (FJeteromel~;i arbuti fol ia) I Wax l!!Iyrtl~
(~yr~ clI.lifornicaJ I "olly -lea.\·ed cherry (Prunus iU,ci rolia) I
rr·d-Clo ... ~rj n.lf current (Hi b"",s Ra.nguinf"ul!l.l, and dwarf coyote brush
(fh!£L'huru pllula.t-isJ. :R:s pro\-idir .. z-hilher quaJit,y babit"t (or
bjr"d~ througb t.he pIanUn. o( a variety of native trf:!es. shrubs
aDd.-a:rnundccyers, the 10s8 of the pepper tre-e a:ro~'e .... o\,lld be
.it.J!Caled alona: 'With the loss of' the eucalyptus t.rees,
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~ !: Hatadero ~ Park Boulevard tc.. £1 Caail!!! Real.
i~tation !!! ± 92 ~ 199 ~J
Vegetation. This reach of trapazoida) concret~ channel extends
1600 feet from th~ downstream side of Park Boulev.rd to the
do,,"nlltrea. side of Xl eIL_ino ielli. The channel bottom ia
cenerill1y sparsel,. veaetate-d with Itats of alaae and watercress~
! •• ediately north of the Lambert Street arid_e, channel
veaet.tion ie thick, pri.ari17 conaistinl of ~ate~creS8 but als",
ineludin. nut sed.e and rabbits-foot .ra8. IFo}rpo.on
_on.pelienlis). Another area about 150 teet north of the E1
Ca.ino Real brid.e oontainea .thick watercr"!se I alaae .ats I
rabbits~foot ara •• and a .trip of oattaila 25 feet io len.th b7
about S fe~t wide.
Tbe slopes and upper ed.ell of the channel are aeneral17 bare
except for occasional introduced weeds such as obee.e~eed (M~lva
lip.).. It variety at t.re •• and shrub. observed on adjacent
properties include MGnterey pine. Cape pluabaao, and ,10 •• 7
privet..
Wildlife. Me bird. were observed altllou,b t~e areab where a
thick Mrowth of cattaila ePA .rasae. occurll would ~ expected to
attract Brewer'. Blackbird. and Black ':'hoebe, 'While area. with
nearbT backyard ve.etation would support Hockinabird J Rouae
Sparrow. and other city-adapted birds. Western toad ,Bulo boreaA)
tadpoles aolri recently transforaed jIJveniles were obaerved where
there 1~ den.e channel ve.etation. Yo un. Pacific treefro ••
(HzI. regill.) were a180 aeen. Adult dr •• onflies and d..aelflies
were seen t17i~ within the channel. Dip~et &aapl~.
da •• eltly larvae, but anail., crayfish, leeches,
larvae, and .tiokleback were cauaht.
included no
dra.lloc.f17
I.paet.~ The replaoement of the trapezoidal channel with a
rectan.ular channel would result in the 10s8 of channel
veaetatian, .oat of which 1s sparse and of aarainal uae b7
vildl1te, re.ultina: in miniaal wildlife impacts. Because San
Franci.co fork-tail damselflies were not ob8erved~ it i. ae.umed
th.t they are unlikely to be pre.ent and thus nO i_pacts to thiB
N-31
apecie~ ~ould b~ expected to result f~om the loss of channel
"'f~~ct.llti nn.
~ 1: Mataciero ~ -Xl Caaino Real 12 Matadero Avenue
CStation 199 ! 90 to. !l! t 64)
Vegetation. Much of the vesetation of this reach js native
ripar] an woodland that is similar to that desci"ibed as Central
C~ast Live Ock Riparian Forest by Holland 1198S). Doainant trees
include cooaat live oak:_. valley oak, eld:!rberry ISambucus
mexicana) J do.rwood (Cornu.s Jtolonifera) ~ and poison oak
{Toxi~odendron dive~siloha). Introduced species includin& acacia
(Ag&eia sp. J and fennel indicate the so.e\o-hat disturbed l'lature of
por·tions of this reach. Trees create a clos<ed canopy O\'er .Ducb
of the creek. Cr~~k banks are a co~bination of natural, rip-rap
:inrl sacked concrete. No vegetation was oblien·ed loIi thin the creek
botto_. and Ijttle understorr veaetation .rows beneath the trees.
~ildli'p. Yild]ir~ was not observed but a number oC bird species
,",ould· be expec-tpd to utilize the protected cbannel area al'ld the
dE'n~ ll'~e canopy. For exa=-p] e, re 110Co' tiarble r 'Dendroi ca
J)!~tech.ia) I Warbline Vireo n:.!..ll.2. Lll""ll.J I and Nortbern Oriole
(Ir,t.reu8 ,albula) ~ould utilJ!.e the ,·ieher C'anop:v areas for
nestine and feedinQ.
Common Flic~~r ,rolapte~ &uratus' nest and for~l~ in the lar.~r
trpes. whi le the Om.my .ocdpecker (DendrcC'opos ruIbescens. j use
!;i;lRaller trees. liil10"," Flycatcher Igw~!l!!.£ trail11il. American
fio]dfin<"h (SpinUl';' I ri50ti..!.l. and Song Sparro,,; (~spi!:a lIelOdia,
Id i' ize the dpnse shrubs ro:r feerlinl and. nestine. Plain
Titllwu,;· ..... (~ ~nnrna.t.Lls'. Bushtit IP.<;31tipBrus !!..i..!timtlsI. and
CbestnlJl.-baC'"ked Chickadee (Parut-i rlJrescen!.1 are commonly found
re~Qin'!f in flock!=> on in!i;;!"cts, especially in COl1st live oaks. The-
~\·~ilnhilit7 or ~aLpr and shelter along the creek attra.c~6
I (troc.-ron lotor). and opt'J"Ssua CtJilil...££..i!. ~supialis),
t:lt.ripcd qkunk (!"Iephjt.l~ menhitis).
rnccoon
.~lIphi bians su.ch 89 Pacific
tr~crrng (exl~ ~.~!~) and·slender 8Rl&~ander f§atra~hosep.
~.!.t~.rt:I!I~l!!. find protection in thp. 1I01.St soil ll]ong tbe creek.
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ImJl~!:,~.,,:!. Ot'lf' 'IT'·~a nn lloth UpPIP.f" r.ret'!k te.rac:es near station 20':;
+ 50 would requirp. Po 101," berm or additional fill to limit flood
flows. No impacts would result.
~itiCAtio~s. No .iti'~tion il neeessary.
~ I: Hatadero ~ -Matadero Avenu~ to Laguna Avenue
(Station 212 :t II t2. 236 lQ.)
'·rg~t.ation. Reach 8 is • natural stream channel very similar to
that described for Reach 7. Lar,e coa~t live and valley oak
t.reep: do.inate this Central Coast. Li""e Oak Riparian Forest.
'Wi Idlife. A variety of wildlife 8uch as dp,Bcribed in Reach 1
",'nuld hP. expected to utilize the near-natural riparian habitat
condition ••
I.pacts. Two s.al1 are&& alona tbe upper terrace of tbe creek at
approximately station 210 + 50 and 134 + 25 are proposed to h&Ye
small beres or landfill where these upper banks are near the is
flow surface elevation. Thi. would not result in significant
i.pact •.
Mitigation. No mitisaticn is neceesltl"Y.
~lt:
(Station
Matadero Creek -
236 ± 60 to 247 :t
Lacuna
!ill)
Vt.'getation. Thia portion of tbe project, extendin. 1100 feet
fro. La.una Avenue to the old SPRR bridle is aenerslly a n~tural
creek with asaoeiated Central Coast Liv~ Oak Riparian Forest. It
tHlIEI • 20-25 foot ch:annel bottom that is rocky, and ,ravell}".
Expr'lsed root .. alona: the stream banks indicate increas~d '2TosioD
in re~ent years. LBr"a:e trees. primaroil)" coast live oaK8 prcvide
D de:18e canopy over the creek. Other tree. and shrubs include
buckeye (A~.culus eal1fornica>, Californis bay (U.bellularia
e"llifornica'. California 'Walnut. bi,-leaf Ilapl~ (Acer
aarrnnhvlum), valle)" oak, willow, elderberr7t to,)'on, poison nak,
N-33
-.,-_. ,.
:J. .:.~~.
If: tI:!l!.tt.yft. berry, California bla~kberry (R'.Jqus ursi nus), and
~r.o~herry ~~~p~arie8roas sp. I.
PorLions of" the creek banks. have been armor~d with ,Kunite atld
~n(-k1!'d 'Concrete. Thjs section of ~he creek lies adjacent to Bel
:Park to the south. Flantin.ll5 of redwood (Segue i 8. ~_empei\'irens).
h~ckbrush. and dwarf coyote brush have been planted in the park
adjacent to .~tadero Creek.
Wild1tf~. The J.lell-developed riper-ian vegetation """ould be
e'l:pected to pro ... ·ide habj tat for a variety of wildli fe species.
Black Phoebe utilize the cr@'ek bottom. and Bra ..... l) TOwhee l~ere seen
along 1,h~ crlf"'ek upper barzks. BL:shtitf:;~ Chestnut-backeod Chickadee
and PJail'l Titllouse, along with seyeral spec-ies of warblers would
be ~xpected. Downy Woodpeck@rs and Co~mon Flickp~ a~e also found
in t~e ripari~n woodland. Ma.mals such as opossum, raccoon. and
striped sKunk would also be expected to utilize the riparian
corrid~r for foOd, $h~lter and wat~r ~ource9.
In the adj~cpnt resid~nlial area to the east and in tbe part to
the we~ t, other sp~ci es lIore adapted to buman d.iaturbanee "ere
obse!"'ved. These include around sq1.lirrels t House Finch, Scryb
Jay, and House Sparrow.
1.pBrt.,;. 1 t .i s prnposed as J'larl tbe project to remove an
oPxisting guni.t€" "'"nIl jus.t dO"""n~trea. ,.; the old SPRR hl"idze. Th(."
gIlT,it.e Imll wouJd ue-repln.red by "a.hion !<:tr-u.-:tur:=-s thlit \Oould he
pJacp.d so that the creek slopes cun b~ re-... eJ:etsten ..... ith native
sp€ciee. N"o nC'':lI.tive i_pacts would result.
~ 10: Matadero ~ -Old ~ B~idce ~ Uill~iew Avenue.
( §. t!!.!J..sm 2 4 7 1: 0 0: 1£. 2 7 5 1. ~Q)
¥E-,etatiQ.Q.. This reach extends
l1alilral Coaat Live Oak Riparian
2,800 feet within &enerall,
Woodland. P'!uc b c; f the creek
blInks are "'ip~rapped with' concr~t~ slabs or sacked C'oncrE'te or
al'." ba,. .. and erodinl. Willow!";; t:row in the creek bottOlllI with
bu~kp.yet .... ,,8.st live oall, ~alirornia bay, California h'alnut, and
ellt~rb("rry {ll'n .. +idint: 8 canopy over-lIIuch or the crf-Oek bott+om.
linai('!'!'!lory g-rt)t.:th consists of snC')'Io:herr.r, pOlson oak. and e8capeci
.. ,ut.irR ih~lurting hor~bound (Marruhiull ,"ulgarel, HilllBla~"n ber~'Y,
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be.v~!"t&i 1 cactus {Opuntia sp. ~, Italian buckthorn,
fennel and cocklebur~ A arove of four lar%e blue sum
treca line the creek near -MicKey's pa8ture K
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wild oat t
eucalyptus
,raId} i f'e. A variety of wildlife would be expected to utilize
this portion of the creek. Opossum and raccoon likely fora.e
~ithin the creek. Black Phoebe, Brown Towhee, Scrub Jay and
House Finch 1otould also M expected 'Within the brushy areas and
alOni the habitat edges. Coamon Flicker and Down,. Woodpecker
utilize cs_itiea in trees for neate. Willow Flycatcher, ABeriesn
Goldfinch, a.nd Son, Sp8.1"rol." utilize the dense u:'!der.lZ'owth while
Cbestnut-backed Chickadee, Plain TitmO'UBe and. "BU8htit feed in
flocks on insecta in the upper ca~op7.
An acce88 ra.p is proposed to link the Veterana Rospital prepert~
to the existin.l sttllina: basin at Station 265. Thia rUlJl would
~li.'nate & number of a.a11 coast live oak. alon. the upper creek
terrace within an area of appro:x:i:aatel,. 1200 square feet~ In
.ddit.lon, sGdilieationa to tbe atilliu baain 'Would eli.inate
tbick .rouths of -willo,,",". blackberry, co.at live oak., and poison
nak that cover about 1150 aquare feet. Where the proposed box
culvert would pnter the stillina basin, .. strip ot dena. riparian
ve.letation about 15 teet by 90 feet would be re.oved, eliainatina
another 1350 square teet of riparian habit~t.
Bank" protection extendin. about 50 reet lon, and 20 feet wide
~ould eliainate about 1000 aquare feet of den.~ ,rowth of eoa.t
live o3k, int.roduced acacia trees. Hi .. l6,.a berry, and PQiaon
oak..
The denae habitat contains a variety or food sources and shelte~
that support a variety of wildlife. 'the loalii or riparian
woodland for tbe construction of one seces. raap, bank
protection. and stillinz baain ~odiricationa would roault in
habitat loaaea for wildlife coverin, approxi.ately 0.12 acre.
MilTiation~Thll! l09~ ,If "habitat values is considered sinor and nQ
eiti.ation is propo5ed~
N-35
REACH 11: l'IATADERO CREEK-HILLVIEW AVENUE TO F<J(lTHILL EXPRESSWAY
(Stat,ion 275 ::!. Q..Q. to 303 :t. ll)
VesO!t8tio.n.
of whj ch are
This c~eek reach contains steep stream banks, many
erodint. A number of sacked cnncrete arid 1-IoGden
'WallE have been C"onstrucled where SE'\'ere erosion problems
prc\iously ~xjsted. Lart:e C08~st Ih-e oaks a!"ld valley oaks ero,.;
ou the banka and uppe:-terraces. Bucke)"e and wi 11o~ also .rau
B'3;81Jr":iated with the creek. 5.&11 backwaters provide
opJ'W'H·tunilies fr.r the! Irowth of cattailt:l and .... atercress within
th~ creek channe1.
WildUf,po. Th~ riparian nabitat-of R!?ACb 11 provides ,ood quality
relij.OLZrc~a tor a variety of wildlife. Scrub J.y, Bushtit. Do'Wn,r
"Iondpecker and Cheatnut-bac'ked Chickndee u.tilize the
for food And shelter. Yelloll-= liarbler. Wlirblin.
~ort.hern Oriol~ a181) \.Iould: utilize this ripllrian
Ra,.'coon and pOlislbi I,r dl!'~r Ulif" t.he C'l'"eelr bottoll'l and
oak canopy
Vi reo and
habit.at.
banks fot'
shelter. PfH"itie trrefr-og, slender salamander, and possibly
Cal ifornia ne .... t ITarich"i. torosfl) rind suitable .oisture
l:on.titiolU;. here. Tht'-' folJo",-ln" d~l'i{'riptions .live detaila of
ve~p.tation at 8p~ciric sites propo8~d ~~r modificQtion. Specific
~1Ilp"ct.s find .itj.lul iOI1!:/. (('If" thcliI;e sit.lE":!:. 1'("1110"".
"Prooosp.o ra.p -~nr~Jrd prrH'?t"r1 ~; (StaUoll :2ii "!' ?..Q): "eg~tatioo
C"onsists o:f one r.OB.st live oak atU')ut 5 reel tall. A a~xtlJre of
jQtro~uced annuBI .rasses covers the slope, with scalt-red carate
bruSlb, pnjson oak. and fennel. A portion of' the lo\.;er slope is
"rndf'd and bare, \With expused tP"'''!(,-ruutb.
Cl.It slopes reqlJif'ed for ramp construction "ould result
jn bat''',' s.lopes thAL could rp.sult in soil e-rosi.:Jn, creek
IlliPllj.t'nfAtion J and water quality deterloration.
Appropriate ~oil prn~inr~ rontrol measures would be
IJt iJj:'.t·d Irl prevent soil loss on cut slopes_
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Proposed Stepped Gabion& tStati£n!!Q i 50): This s1te lieK below
an undprmined tennis court. A p~tch of Himalaya berry, a s~all
rl::i!ifnrnia walnut. tree !less tban 5' te.ll) and a fe...-scattered
shrubs of coyote brush are .aaoelated with a failed •• cked
eoncr~te and a retainina wall aade of telephone poles.
IapBetso No si,ni{icant iapacls would result.
Pro~o.ed Cha~nel Widenln. (Station 111 ± ~). A ~arrow portion
at the base of a small footbridle contaiDa a sacked concrete walL
and an eroding bank of' weedy .raaeea, fennel, Fuller'. te-aael
(Djpsacu8 .ativ~). and a f~w youn. willows at the creek edge.
t.pacta. No sianiticant i.pacta ~o~ld reault.
PropoRed aa.p. Stanford property (StatieD 283 !. 00). Tbe creek
hank i. Ira.BY here ~ith buckeye. on tbe bank. Two pla;"\te4
Aleppo pin~s (~bal§pen.i8, and a sediu.-sized cosat redwood
would probably be re.oved because da ... e to tbeir root 'Tat.as
would result lrca e~cav.~lon tor the ramp.
11IIopacts~ The proposed r •• p would _eli_1nate three l.rle
ornaaental trees tb .. ~ provid.e rooatin, IUIod ne.tin. habitat -fot'
bird. in tbe area~ This i_pact is conaidered insi.nificaat in
vie'W of tbe a.ount of adjacent veSletationa I and no .i ti •• lion is
. propoaed.
Proposed Widenin, ~ ~ Prct.etio~ lStatioq 285 ± 50). Tbis
n~rrow steep portion ot the creek ie erodina. Two pruned buckeye
~ree8 are pTPsent alon. witb introduced thistle. honeT.u~kle
{~~ ap.}. and Al.erian ivy.
IRlPJllcts~
i_pact. ~
Removal o! this ve.etat1on 18 conBidered is. !Rinor
Froposed Channel Widenin' (Station 292 ~ 00). This sharp tUrn in
tne creek alisnment is eoatly bare ot veaet.tion because the
BubBtrate ia steep-.sided 8and8tone~ Buckeye trees on the upper
terrace of tbe south side of tbe creek are beinl undercut t
N-37
exposing m&ny roots of these trees. These trees ~ou],d be removed
(or wideninlil. Valley oaks ne~rby would remain.
'_nacl6. Channel widenin, would result in the removal of a small
grove of buckeye trees which would eventually be lost as erosion
cDntlnu~s ..
Proposed ~bion Bank Protect jon {Station 293 .!. 00). Two large
coast live oaks (or.~ with a double trunk of 14 and 20 inches, and
the other with a trunk of 36 inches diameter ~r~8st height Idbh»)
.row on the vertical banks proposed for creek ~rosion protection
on the north. side. It. few small willows .row at the crll!eit edge.
lapagt •.
oaka.
Tbe bank wi 11 bc stabilized so as to preserve th~ two
Propoaed a.hion ~ Protection (St8tion 1[1 ± QQl. This portion
~f the creek is a steep bank covered with introduc~d grasses and
weeds. Two larlle coast live r'lak trees Irololinl on the bank
do~~slream are bein. undermined.
I.Met~. Appropriate bank protecti .~ would be used to protect
both the benks and trees.
llF.ACH 10: KATAOERO CREEK BYPASS -STANFORD £If.A1!!i!lli Bl!illI 9£ ~
(St.ation 0+00 to 1£+501
Vece~ation. The proposed bYrass ~ould be an ~nder.round 12-Coot
hiSh by 12-foot wide concrete box culvert.. It would" be
constructed after re.o,,·el of al'l e~j~ting 84-inch diam.eter
undercround concrete pipe and an open concrete-lined channel.
Thoe o"l~n trape:1oid:"l) concrete-channel has very little \:egetation
grf.,","in~ in the bottom. However, th~r(' is a great dea.l of planted
8W'~ volun"(~et" Hhrubs Ilnd tree~ a:ro~!ng on and adjacent to • low
hpr-a nl101',p the c:-.:isti nl I.,md.:-rground concrete pipe~
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A large nURb~r of mature (40 feet bllh) Monterey pine, along ~jth
occasionAl it-allan PGplar (Populus nigra italiea). eUCfi.1 yptlJS,
and acacia trees provide a hi'h and dense canopy. providing
wildlife habitat and screenial between & residential and
industrial area. Ma.ny dense planting. of Chinese photinla
(Photinia serrulata), oleander, and toyon are located within tbe
construction zone~ Scattered vi thin ~he&e plantinl8 are
Brazilian peppe~ (Schinus terebi~thifollu~), California pepper.
t.ree-of-heaven, firethorn, and appleJ cberry, and apricot trees
(Prunu8 app.). Many younl CQ$8t live oaks (mostly 5-12 feet
tall, with 8t.!'veral :2.5 :reet tall) are scattered throu.hout the
construction area.
Wildlife~ Habit.at requh-e.enta are provided in this reach for a
variet7 of ~ild1ife that are adapted to urban environ.ents. OpeD
~ater at the DDrth~rn end of this po~tion of the project provides
wateT for son.birds such •• Black Phoebe. and Hournin. Dove. The
dense veaetation and co.bination or tall canopy-and .hrubby
under.rowth provide. habitat for .ray aq~irrel tSciuruB .ri.eus),
Scrub ~.Y, House Finch, Hoyse Sparrow, Bro~n Towhee. and Anna'.
euaain.bird~ The presence of ;roun. oak. inere •• e. the habitat
value of thiIB area becauiJe acorns are a food .ouree that are
utilized by a wide ranse of wild1iCe~
Excavation tor reaoval and replace.ent of the exi.tine
concrete under.round channel 'Would requi re re.oval of about 90
trees and 135 ornameDtal shrybs. This would result in a temporary
nea.tive i_pact to wildlife because their food and abelter
requirement. would be eliminated.
HiticatioQ4 Th~ box culvert ali.naent Collow. tbe northwest aide
oC tbe 50-foot wide E"8Sement. This ali".ruaent "Would retain all
but about. elaht of the iarae Monterey pines. In .dd!tiob, the
trench Cor the culvert will be verticr.ll,. out with sherin. t.o
ii.it the width of the construction zone 'Which will reduce the
.. ount of .... e.cetaticn that would be re.oved by the project.. A
professional landscape architect will be retained by the District
to dealcn a landacsl'c plan to restore t.he disturboed are..a.
EII)111&s1& will be placed on planting f •• t .ro"Win. CaliCornia
na.t.lve and ol"na.t:llt.al drou.ht-tolerant trees and ahrub. on an
N-39
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t!'8rtn berm placed over the box culvert. Consjderation ~ill be
giv~rl t~ pJallting & number of specim~n size trees to provide a
Ipd~~ .s.cre~n~nlt effect. The h.n.dsco.p~ plan l.:i11 be prepared
nllring the design ph'lse ot' the flood control project. The
dj1'ltr!ct \oo'ill be responsible for Ilaint.aining the pl~Hlts until
th~y are established.
MMlli 7B: -HATADERO CREEK BYPASS -"AR!AN PARKING LOT
(Station ll. ±. 50 .t9.. AI :!. Q.Ql.
Veget~icn. The ttroposed 1100-foot alignment ,",ould result in
('onstructio:'! of an underground concrete culvert 12 feet hi£"h b;y
12 f~et vide heneath l50uthern edile of the Varia.n parking lot. No
"·p'.,,tat ien is found there.
Wildli~e. No wildlife habitat ia located on tbis portion of the
pr-o,ie·c:t.
RJlACR 88 -HATADl!RO CREEK BYPASS -§£!!!! RIGHT Qf WAY
i Stat-ion .u ±. 00 t£. ll. :t Q.Q.)
~il!S!ttation. This porti.on of tb1.!' project is 80 feet .... ide and
about 500 teet lon.. A bicycle pat' is located in the cent~r of
t.hia linear ,al'"k. A variety of plan ... ·f and valuntee .. native and
introduced trc~s and shrubs .ro~ on both ~ides of the path. The
Poast side or the path contains mostly mature co~st live oak trees
t.hat IH"Qvide bla:h h&.b~tat value for I\.:ildlire~ On t.he west sidifl;
of thp. path crow a mixture of C"oast live o1'lk, California pepper
trees, valley oakJ cotoneaster (Cotoneaster lactells), acacia.
olive, al.and trp.es, pifte tree •• and Caltfol'"nia cay.
Wildlife.
Ihush tits
A variety of Bon.birds 'Would be expected in this Dr-ea.
and Ch~st~ut-b~cked Chickadees utilize the (ood and
aht-l ter pro'ddp.d by tbe oak trees" Scrub Ja,.. House Fineh. Bro,,"r.
TII,-,he .. , Pond ,\nna'B Hu.mit'llbirti: also use this ha"itat~
1'-40
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!mpacts. The combination of excavation of the bige path for
constru~tjon of the undergro~nd bypass and the propcged
construction of the te~porary bike path along the western side of
the ~ight of way waul.! result in the almost complete removal of
the vegetation along the .... est side of the right of way, an area
of approximately 20 1 000 square feet. Approximately 30 trees and
18 shrubs would be removed. Tbis would result in a mcder8te to
severe localized less of ~ildlife habitat b~cause of the removal
of valuable oaks that provide impoTtant habitat values for
wildlSfe. Houses lccated along the western eide of the path
~c~ld lose their privacy due to the lo~s of the \"elelation which
screens the homes from the bike path traffic.
Mitigations. As dlscu5se~ above, a l~nascape architect ~il1
develop and the District lo,"i11 implement 8 landscape plan to
replace the .... isual snd '\o.'ildl:ifp \.81uf'~" Df thp existing
vegets tinT, Even ~'~th large size tr?€'s, it '-ill take ser.'eral
years before 85 mL:ch scr~enin, 8S no~ e~ist5 15 restore~.
benehc_r 6.r "",~E:.r./,:
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!"'Ii t igations. Areas disturbed by @"cavation should be replanted
wlt.h appror'ri~te groundcover seed mixes to reduce the potential
~pread of invasive weeds such as yello~ star thistle.
BARRON DIVRRSION CHANNEL -SPRR Brid.~_ TO Barron Creek Sediaent
~ (Station Q. ! Q.Q. to 24 tOOl
Veg~tation. The Ba.rron Diversion Ctlanr.el would Collo"W
alie-om.ent of a bicyrle path east of the Veterans Rospital.
the
Tho
a~jacent vegetation consists of weedy.gras5es. patches of yellow
star thistle, and occasion~l trees and brush. Along the trail.
e.pprmC:imately 3 1 Z-foot-tal1 "slley oaks wo~lci be el iminaled
a.long w) th several shrubs of planted firethorn and native coyote
brush.
A sma.ll .... alley oak Rod a patch of coyote brush would bE removed
l..;hf'"re the diversion .'O["lnects lolith the existing 9eodimentation.
hasin. The
t.he
sedimentation basin app~ars tQ retain
y~ar (sl"I'IalJ puddles ..... ere evident in
water t.hrough
August 1987,.
T~~ basir~ s~pports a dense gro~'~ of cattails.
~--._-
Th~ GP~!l grassy and bru. ~~ areas adjacent ~o lhe
±lr:ljf~ i~cluding grt)u!1d
Chlcj~a~ee, ~ockingbird.
Mo ... rr,lr.~ Dove. and S(""rlJ·r-
btlll;. rog &re
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REFERENCES
Carrlson, R.Y, and J.E. Haternik, Jr. 1981.
Il'lt'hr.ura cemina (KennedYJ and a
andro.orph fe •• le (ZYlopterL:
The distribution ~r
description of tbe
Coena.rionidae) •
Odonatoloeiea 10 (21: 85-91
Holland, R.F. 19a6. PreliaiDary description of the terrestial
natural communities of California~ California Dept. of fiah
and Ca.e, Sacra.entO.
Mun.z:, P.A. and D.D. Keck 1973. A California Flora. University
of California Press, Berkeley,
Sunset Garden Sooks 1919. Sunset New We.t~rn Gard~n Book. Lane
Publiehin. Co" Menlo Park, California.
paRSONS CONTACTED
Dr. R.oaser Garrison.
Telephone conversation
Entollc!oa:i.t for
Au,uat 10, 1997.
Los Ana:ele.a County.
Hr. Dave Sanda.e, City Arbo-riBt. Cit,. {)f Palo Alto.
conversation AU&ust 10, 1987.
Telephone
Dr. 3eurel Sin.leton, EnloaclQ.i.t,
Service, Endan.ered Species Office,
conversation August 7, 1987.
u.s. Fish aDd 'Wil.dlife
Sac rll.ento. Telephone
_=---,_N-43
".,
(;U1..TUQAL RESOURCE. EVALUATION OF
T~E MATADE~O CREEK FLOOD CONTROL
PROJECT IN THE CITY OF PALO ALTO,
COUNTY OF SANTA CLARA
FOi
SA~TA CLARA VALLEY WATER DISTRICT
16080-87-227
BY
ARCII~OLOGICAL HSOURCE MANAGEHENT
ROBoiT CARTIER, PRINCIPAL
SEPTEMBER 1981
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.ABSTRACT
Archeologieal research was carried out for approximately five
~ile8 of Metadero and Barron Cr~eks 1n the City of Palo Alto.
Count, of Santa Clara. The research included an archival seefch
ill the State recorl:!s and 8 surface' survey of the propert.y. The
archival research revealed that there ~ere three recorded 8reh~o
logical Sites vitb1n or adjacent to the subject area. Field
reeo~naissacce verified the preSp.Dce of the recorded sites vithin
the project bou~dar1es. Recommeodations for those arEa~ of arche
olog1cal sensitivity are included in the conclusion of tbl$
report.
LOCATION AND DESCRIPTION OF THE SUBJECT AREA
The sobject area is en apprcz1.ately four-snd-a-half mile
seg.ent of Matadero Creek between Foothill Expressway and ~he Bay
shore Free~a1 and about one-half mile of a proposed Bar rOD Diver
sion Channel aouth froR its confluence with Matadero Creek ia th~
Cit,.of Palo Alto, Co~nt~ of SaDta Clara. On the USGS 7.S ~inute
qQ&drangles of Palo Alto and Mountain View. the U~iyersBl Trans
.~rse Mercator Grid (VTHG) endpoint locations of the study area
~re 577500/4142900, 575200/4140000, and 576500/4139500 (Palo Al
tc); o.d 578450/4143850 and 577500/4142900 (Mc"ntol. Vi •• ). Tho
elevation raDges from 5 to, 100 feet KSL. and the nearest sOllrces
of fresh vater are Mat8~ero Bnd Barron Creeks within the s~cdl
area.
~ith1n tbe o~erall project area. general patterns Bre preseot
in the SeolrapbJ and arch~olo81 vhich are important to this study.
The lower elevations of the project area (north of Alma Street)
are in flood plains. and repeated lowland flooding has co~ered
these areas Yitb silty soils.
ject alignMent is on slightly
From Aima Street upstream, the pro
hiaber 8rou~d aDd archeological
sites i~ this geoaraphica1 settiDg are usually exposed on the sur
faee. This l~tter area is in a ~ore natural state ~ith so11 expo
sures com.only 8yailable and traces of &rcheological ~aterial
pre~t in seyeral places. A conc~~tratiOD of multiple archeolo-
81eal reeources exists in ~he ylcinitJ of the Barlon Di~er6icD and
Matadero Creek ~oD!lu~Dce near the ~eteraDls Hospital facility.
N-S3
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PALO ALTO. CALIF.
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PROJECT AREA WITH
STATION NUMBERS
MOUNTAIN VIEW. CALIF.
II[ • III,"v ".-0 .~ ;:"'''~''.:_E
"4~-;::~-.·.'\1~ 75
,9<,
F~."fOj;;(\"'>~" ~O/~ "''''D \'1.13
... ~'S. I~'" I foIt-S,tIUES 'oIU:S
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These owerail patterns result from the topographic charac~eristics
of th~ area. the histOff of ~reek flood ~ontrol aCLiwities, and
~h~ habitBtion sit~s favored by Native American peoples.
~istbilit, of soils in the project area varied fr~m poer vis
ibilitJ in the lo~laDd section north of Alma S~reet (chaonelize~
and lined portion) to clear visibility in the southern sections
near Foothill EX'Press'oIay .. 'S'Jildings, lanveaping Bnd stref!ts co .. -
ered portioes of the area in much of the alignment. The sector
~lth the least ~1sibility ~as the land covered by the Watkins
Jobnson complex.
The proposed project co~s1sts of flood control measures vhich
would include seyeral design elem~nts e~ch as 8~ditional cul~Erts,
brid,e replace~~Dtf.odifi~ations. earthern b.rms, minor rechaonel-
1zation~ ~ bypass eanal~ aDd a di~ersioD chaDD~l.
REQUEST FOR ARCHEOLOGICAL EVALUATION
The archeological evaluat10D was carried out to determine the
presence or aos«Dce of a~J eiln1ftcBDt celtorBl reso~~ces. Arche
ological ser.ic~~ vere requested in June 1987 in order t~ provide
.8 report that vo~ld: 1) undertake an archival st~dy of the cul
tural resources in the Yi'cinity of the-project. 2) conduct 8 sur-
face surver of tbe land. an4 3) tG provide a 'oITitteo report of the
fiDdings 8nd eny recommendations that would be appropriate.
ARCHIVAL BACIGROU~D AND SURFACE RECONNAISSANCE
Archi~al: Prior to recooooiteriD& tbe subject area, a study
of the ~8pS and records at tbe ~orthvest Iafor.etien Center of the
C.11fo~D18 Arcbaeololical Site Inventory was cODdu~ted and liveD
tbe file number of 6080-87~227. This researcb into the records a~
the ielional Office vas done to determine if a~y kno~n archaologi
eel resources 'oI~le reported in or a~oond tbe subject aTea. Three
Brcheolvli~al sites were recor~ed 1n Qr tireeLI, adjacent t~ the
subJect area--CA-SCl-3 t CA-SCl-535, aod CA-SCl-616.. Dr. Saebara
!ocek, campus arch~oloGist at Stanford UDi~er5it,. ~as contacted
for additional inSight and iafor.atioD cQ~CerniDI the archeologi-
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PALO Al.TO. CALIF.
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ARCHEOLOGICAL SITE
LOCATIONS
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r cal resources in and neAT ~he st~dr area. A meeting ~it~ Dr.
Bocek at Stanford University co~firmed the pTesence of the three
recorded sites and added detail about the archeology ic the pro
jec.t relioD.
CA-SCl-3 ~as originally recorded b) A. R. Pilling in 1949.
Tbe site ~&S re-recorded by Bo~ek i~ 1985 expending the or~g1nally
recorded site bounderies. The s1t~ is located at the confluence
of Hatadero and Deer Creeks and stret~hes It least 100 meters
dovnstream of the confluence. CA-SCl-3 is a large. partially des
tro7ed~ Yillage site vi~h e v~ll-developed midden containing human
bvr1als. flaked and IToundstcne tools. worked bone, a cnarmstone.
shell beads and pen4ant~, in addi~ioD to f1~e-elt~red rock. burned
bone, chert waste materi.ls. and dietary shell remains. Cclt~ral
materials were noted on both sides of Katadeto Creek. Fiye 1nhu
_etians were !deotified durinl 1958 £%cavations b1 B. G~rov of
Stanford Universit, (Bocek 1985).
CA-SCl-585 vas recorded iD 1965 based on the 1958 field notes
of B. Gerow. Gerow ItFpare:c.tl, eDlaaed in Balvege reeo'Wer,. ~from
tb~ site during tbe construct~oA ~f tb~ Yeteraa's BC6pital in
'1958. Three human burials were sal •• ged fro. tbe site at thiS
t1.e. The large~ deep midden deposit probably repre&ents a major
occupati~D site. possibl! an extentioD of CA-SCl-3 (Bocek aad
Rutherford 1985). The midden had a bigh shell content and arti
facts which &oDsisted of shell beads. ~etate-type grinding stones~
chert ~ores. hammerstones. ~enos. pes~le fragments. and lithic
materials. AlthoQgh the surface i~tegrftJ of the site has beeD
Ireatly eo~promi8edt it is possible tb~t deep sub$urface deposits
aa, remain intact (Bocek and l~therfcrd 1965).
CA-SCl-6115 ... as reeorde'd,-In 1987 by 8. Bocek. as au occupation
site loeated at the confluence of Katadero Creek and tbe proposed
Barron D1ve~sion Chanoel. The site consists of • dark midden soil
contain1ns chert flake tools. bone, shell. fire-altered roek .D~
ch8rcoal~ N~ huaeD remains were noted but their p~r.eDce 15 high
ly likely. The surface of the site bas bee~ sreatly disturbed but
depOSits are believed to be intact bela. the 20-30 &. level (Bocek
1987) •
Surface Survey: ~ ~general surface rrconaa1ssance· vas COD-
ductcd by t~e Prjnci~al Investigator in August and Seprember 1987
O~ 81! open lend: surfac.es Qf the subject parceL ... here ve-get-atior:
&nd op~n sRace ~11o ... cd for surf~c:e inspection~ A flcontrolL~~
intuitive r~conn8i65anc:e~ ~as also performed in places ~here bor
rowi~g animals. exposed banks a~d inclines. and oth~r activities
b&d reyealed s~b6urface stratigraphy and soil co~tents. Due tC
the length of tbe stud, areB, survey conditions and findinss ~arJ
greatly. To f6cilitate the discussion of the survey findings,
eecb sh~et of the propos~d project plans will b~ disc.ussed separ
ately. The location of each of the numbered segments of the pro-
ject a11gnlllect ere ItO ted o~ the
Statiocs 93+00 to 173+50."
p:"ojec!. map.
The topography 10 ... hjs aTea is
fa1rly flat. appro%imately iive to t~entr-fiye feet in elevation.
This ~ectioo has been chanDelized during hi5~O~ic times and is
presently concrete lined. There is a small ee~th margin on eith~r
aide of the 41ign.e~t 2 to lQ f~et vide that alloved soil visibil
it,. Most of this earth yaS seriously distcrbed by cheanel con
struction. some vas covered with imported 8,ave!, aod in other
places it was totally covered vith weg~tation or COD~[ete. How
ever, i~ se.~ral places the adjoining properti~s ~ere accessible
for ..Jlis'&sl ins~ect'ion.
It sbo~ld be Doted that this lo~~r flo6d plaiD has been sub
ject to mean~ering creek systems ~nd n~~ur8l deposi~ion of al1~-
... ial sed 1 •• Surie~ sites are being found on a regular baEis ic
this genforal -Y"icinity. Soil varied iTom dark llro .. n to lif,h.t brown
loam and clay. Natural rock was bot frequenLly noted~ b~t i.port
ed arave! was co •• on i~ the soils from the history of ictensive
d~velopmeD~ in ~be alignment. Several pieces of histo~ic ~aw-cut
bODe were fOUDd along with post-turo-of-~he-~entury c~ramics~ No
tTaces si8Dif1ca~t of culturel resou~ces vere Doted in th}s ~or
tiOD of the project alignment.
Station 173+00 to 185+00. Soils in this area were visible
alODS the railroad t~,cts and Alma Street. There was a dark fri
able lQam with light brown loam OD the ~orth ~ide of the railroad
tT8ells; th< daTkeT soils appeared high ib asb conte-nt. D.&rker
soils were close to Alma Street. Rock of gravel and cobbles of
sendstoce were fTequent in this ~1r\Dlty. Several smali cobbles
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showed indications of heat alteration. The gener~l interpretation
oC this ares is that jt bolds potential for prehistoric oiddeo aDd
should be ~ilheT tested or monitored. A large amount of subsur
face constTuction is proposed for this area in the current project
design.
Stations 185+00 to 201+00. This area is covered in concrete
channel with limited ,i5ibility of the soils. Small maTgins
between the cb8n~el aDd the property right-of-vay contain narrow
stTips of distu~bed soil. The s~il was dark brown clay and loam
with sandstone gravel. No indic6tiOQS of cultural resoorces vere
noted.
Stations 201+00 to 217.00. JD this ~ortion of the project.
~er, limited vork is proposed in tvo small earthen berms OD the
creek bank. In these areas. dense vegetation vas present on the
creek banks but soil visibility vas ayailzble on the p~opert1 of
the adjacent private p~operties. Loam and silt chaTacterize~ the
soil and n~ traces of cultural resources were present. Commu~ic.
tioD vitb one of tbe l~eal residents. Mrs. Leach, iedieated that
local resideDts bad DO furtber knowledge of cultural resourC~8
having been found in the area.
Stations 217.00 to 232+00. No modifications or ~artb movina
is proposed in this section of the creek alianmeDt, therefore.
reconnaissance was omitted froa this area.
Stations 232+00 to 247+00. I~ this Tegion~ two se~ti~DS of
the cTeek channel are scheduled for modif1cation~ Th~ downstream
sectioD. off the Sachs residence. has a relatively intact creek
bank ~ith clear .isibillCJ Qf soils. 10 traces of cultural
r~50gr~eS were noted here. The u~strea. section, off the
resid~Dces of Grana. and Morfit. vas overgrown with weget8tioa,
but did have smell areas of visible so11. A8sin. no traces of
ec1tur~1 re50urces ~ere DGted.
Stations 00+00 to 15+50 Bypass Ch8Dnel. Along this section
of the project. removal and replace~e~t.of a 5ubs~~face c~l~eTt is
proposed. Thr-alilnment is partially landscaped aDd so.e·e~po
sures of soil and roel are available for inspection. A li@ht
brow~ 10em and grawel of native stc~e were noted ~ithout trace of
~ulturel resources.
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Stations 15.50 to 30+00 Bypass Chan"el. This ~ection of th~
project is similar to that proposed betv@en Stations 00+00 and
, 'i-+ '! 11 • The c~nt~nI portion (Stations 21+00-2S+00) of this seCtiGo
Ilad excel leDt ~oil exposures from gard~ns appa~cntly maintained by
the adjace~t property OWDers. The ,yrreDt condition during recon
naissance of the upstream end of this section is 8 lo~ berm ~lth a
ditch on either side. Visibility limited in this area by veg~ta
tiOD. A dark brovn loam and sandstone rock is 9isible in this
acea, with two pieces of th~ rock th~rmally altered. this is
close to the r~corded site CA-SCl-616. Recomm~Ddation for this
area is small~scale 50i1 testing aT monitoring for possible beried
cultcral resources.
Stations 30+00 to 45+50 Bypass Cha"nel. A subsurface box
culvert ot 12-by-12 foo~ dimensions is proposed fo~ this aTea.
So~e of the land in this part of tbe alignment is low. off the
creek. whereas the more northern portion of this se<tion is on
hieber ground. The soil o~ the lover ground is ~ark bro~n loam
and cla~ witb gravel _nd ~obbles of sandstone. Bet~eeD stations
37+00 and 41+00. the darkness of the seils a~d seVEral small
pie~es of the~mally altered stonp. indicated a pos~ibilitJ of ~id
den 90i1s. A known site. CA-SCl-616. is recorded in this wiclni
ty. It is re~ommeDded that archeoto~ical testing shoDId be caT
ried out in this area.
Tbe higher gTound to tf:le south at ;I'-ation 41+00 is light io
color, lacks fire-altered rock but very possibly contains an
underl,ing strata of dark soil simi16r to that noted north ~f
station 41*00. Considering tbe-depth of excavation p~oposed fer
the 12-~J-12 foo~ boz culvert, testing in this hig~er ground is
also r~co •• ended. Deep ~reDchini iDlo the sDb-st~atu~ ~ould be
appropriate.
Stetions 241+00 to 260+00. A coo.tinuatioo of the b;;;z t.ulvert
is proposed in thi~ area
Ha~edero Creek. 5011 ill
along vith portals into the channel of
this area is derk loam
The
and cIa, witb
dark ashy color of gra.el aDd ,obbles
the soil, together ~ith seve~al sm~ll pieces of fir~-altered rock
indicate midd~o soil io ~his area. The ,ulvert is planned under
the bike path and does not follo.., lhe e:risting HOltadero Creek.
1t-60
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alignment. In tbe ~ctual creek alignment, no work is currently
prnposed up~tream uotil station 264+00. Ho~~vEr, the creek ar~a
h~Lwccn th~ bike p~lh (station 247+00) and st~tion 264+00 is very
sensiLivE archeologicall, and zny proposed earth move~ent fl0m
conslruction or cleaTing of yegetation should have further arche
ological inyestigation Bod possible testing.
Stations 260+00 to 275+00. The proposed project in this area
1~cludes bank protection. eo access ramp, and 9 bal culvert. Vis
ibility in this area is veTy limited due t~ extensiv~ Qvergro~th
of veaetatioA io the creek and the present alignment being physi
cally covered for approKlmately 650 feet by the Watkins-Johnson
Facility. One small area of exposed soil was found in an edjaeeDt
lavn on the property of the V. A. Hospital eff station 263+0~.
This soil e~posure. cbaract~rized by dark brovn loam and sandstone
gra"e~. appea:red to bp. .. prehistoric Jld ddetl in its n.ature.. In
previous years 8 prehistoric archeologi~al site was recor~ed
bere--CA-SCl-585. It is recommended that the area of the proposed
construction 10 this area be tested. (This ~estinl •• y hare to be
of ai,pificatlt depth in the WatkjD~-Jobnson Facility to peDetr8te
into natj¥e soils .. )
Stations 275+00 to 290+00. This· por t.ion of Mata dec 0 Creek
has limited construction proposed in the form of two access ramps
and a short sectio~ of bank protection. The entirety of this area
vas sUfvefed aDd altbougn soils on the south bank had some traits
of potential c~ltur81 modification (friable). ~a clear evidencp of
a site was noted. D~e to the very limited amount of CODstT~ction
proposed (aD the south bank) no te5ti~& is reco.mended.
Stations 290;00 to 303+55.. This portioD of the project area
includes minor alte~net!on of the creek baok. Reconnaissance did
eD~ounter midden soils on Lhe south aide ~f Foothill Expressvay
~bere site CA-SCl-J is recorded. It is suspected that the site
may h8~e oriainally extended nortb ~f the Expressway prior to the
bistoric development of the area. Small-scale tesiiag is tbere
fore recommended in the twe locati~n5 of proposed flood ~ontrol
modification to deter.ine if portions of tbe kCOWD deposit extend
into tbese locatioDs.
Stations 00+00 to 24+75 Barron Diversion Channel. This
port1o~ of the project includes a propose~ d1ve~sion channel
follo~in8 an exi~tin8 bike path. The hike path contains light
brown soils and natural rock gravel~ At the more northerly end of
ttlis area, 8 prehistoric site, CA-SCl-6Io, is present. The bike
p8t~ is cn high ground directly adjacent to 8 lo~er field ~hich is
part of Gunn BiBD School. In tnis Lield~ dark loa~ and some fire
altered sandstone is present. Dark loam and fire-cracked stone
are also present in the past~re adjacent to th~ bike path vhere
CA-SCl-616 is rer.orded. Due to the reJativel, large amount of
soil which would be excavated in the construction af the box cal
vert, caref~l arid deep te5-tiog of this area is recolllmended to
evaluate the potential foz buried deposjts.
Stations 14+75 to 24+00 Barron Diversion Channel. The Barron
DiYersioD Channel and eartberD ~erm d~yelopment Is proposed for
this ,art of tbe project.-The field survey not~d 5011s of light
brown-loam and elay and rock of sa~dstone cobbles and gravel. '0
traces of cultural resourc~s ~ere Doted in the field. Hoveyer.
prece~tionary te$ting on the northern p¢rtioD of this area {~ta-
tioos 15+00 to 20+00) is r~commecded due ~o the pre.iously record-a
ed site and positive f~eld data directly adjacent between stations '.
00+00 and 14+75.
CONCLUSION AND RECQMMENDATIO.S
Based upon the archival records and the surface it
appears tbat
ti.ons wjthio
significant
the subject
cultural resources e~ist at
survey,
'Various loca-
aTea .. The recommendations that were pre-
vionsly included in
Stations 93-+00
the disccssi~n above are su~marized below~
to 173 .. 50 .. ]t is recommended that proje~t
construction in this area b~ spot ~hecked by an archeological mon-
it~r for the possible e~is~ance of buried archeological depositS.
Tnis is recomaended du~ to ]) the limited visibility in tbe c-oc-
crete lined creek channel, 2) the blah potential for buried sites
iD thr lo~er flood ~laiD. and J) earthmoving proposed in this
area.
StatioDs 173+S0 to 185+00. This segment of che 'project is
archeotogicallr scnsjti~e. Traces o( prehistoric deposit wer~
1
\
~
( ,
I ,
/';.,'
noted of! Alma StTeet~ Due to the large 4mQ~nts of construction
scheduled i~ this area. it should be tested and/or mooitored~
Stations 185+00 to 247+00~ No f~Tther recommendations.
Stetlon5 00+00 to 15+50 Bypass Channel. No further recom-
.endatioDos.
Stations 15+50 to 30+00 Bypass Channel. D~e to the proximity
of CA-SCl-616 a~d traces of ~ultural resources noted during the
surface reconnaibsance. it is recommended that this section of the
project have a.all-scale testing and/or monitoring fOT possible
buried cultural resources.
Stations 30-+00 to 45+50 Bypass Channel. Du.e to the presence
of CA-SCl-616 io this area, it i8 recomended that small-scale
tes~tD8 be carried ODt between stations 37+00 and 41+00. It is
also recomaended tbat the aTea north of atation 41+00 be tes~ed
for deeply buried resources.
Stations 247+00 to 260+00. the area betwee~ stat1o~s·247+00
and 264+00 1s Yery Bens1~1ve archeologicall,; boweyer~ no vork is
c~rreDt11 proposed iD this area. If any proposed earth moyement
or cleariDg of yegetatioD is scheduled in this 8rea~ it should
have eO.$eot and possible archeological investigation.
'-Stations 260+00 to 275+00 .. Due" to the liaited ... isibility and
the close pro%i~ity of CA-SCl-S8S, it is reco~mend~d the~ the area
of proposed construction be tested to a depth to penetrate native
soi Is.
Stations 2;5+00 to 290-+00. Ho further recommendaticns.
StatioDs 290~OO to 303+55. Due to the presecce of CA-SCl-3,
it is re~ommeDded that small-scale testing be carried OQt in the
tva loeatlofts of proposed flood control mod1fications to determine
if the boundries of the recorded archeological site extend into
these areas.
Stations 00+00 to 14+75 8arron Diversion Channel. Due to t:he
presence of CA-SCl-616 in this area and the relati~elr large
•• ount of 6oil& that are &cheduled to be excavated. it is recoa
_ended: that ca'reful aDd deep testing be carried out to evaluate
the potential for buried cultural deposit.
Stations 14+75 to 24+00 Barron DiveT$ion Ch.nn~l. trio traces
of cultural ~rSOUTCC$ were noted 1ft this aTea; hovever , doe tc the
-.
· .
pro~imitr of tbe positjv~ field data adjaCeD~ bet~een ste~ions
OO+OQ end 14+75. pIecautionar, testlng ~et~een stations 15+00 and
20+00 of this seg~ect is recom~ended.
LITERATURE CITED AND COISULTED
Bocek, B.
1985 !r~heolo8ical Sit~ Record
tbe Ncrth~est I~formatioc
versitr. Robnert PaTk.
for C~.-SCl-3. On fi Ie .a t
Center, Sonoma State Uni-
1987 Areheolcgicel Site Record for CA-SC1··6I6. On fil~ at
the Mcrth~est Information Center, Sonoma Stat~ Uol
yer~itJ, ~ohnert Park.
Bocek. B. and J. Rutbe~ford
1985 Arcbeolo,icel Site Record for CA-SCl-S8S. On file at
the Rortb~e5t Ieformation Center. Sono~a State Uni
versity, Rehnert Perk.
Pilling • .I.. R.
1949 Arch~olo8ical Sarver Record for CA-SCl-3. 00 file et
the ~ortb~est IDfor~6tioD Center, Sonoma State UDi~er
sity. R~hDert Park.
• .. , ,
~ , , ,
II , , , , , , , , , , ,
BC Brown and caldwell
~ Consu~ants
MaC 8~sklr. ~~
PIu:am. Hilii. CA IHS2.]-43J2
p,o Box 8045
Witllll CMl, CA 94:S9&-lm
(5l0) !lJ7''XllC
F,u151019J7..gmj
December 3, 1993
Mr. A1fted Wanger
T. AI Wanger
c.. c.I EPM>TSC
IN 6110:-07
Fu I !!10-S40--3J!i9
California Environmen"" ProIection Ageocy
Depor1mlm1 of Toxic Substa!lQ''s Cootrol
P"gion 2
7l" _ A_De. SuiIe 200
1Iertdey. California 9471()'2737
Subject: Hillview·_ Regional ProgI3ID
InIAorim hmt:diaI Measure Number 4 -Phase I
.oCpqes. 3
Fax' ~ 1()'937-9OU
RECEIVED
DEC 1719$J
11-6184-2015
BoII'1uk Bib I'IIh Groundwot.er _ System and Cooveyana: PipeliDe
Impact of Santi! Clam Valley Wamc DisIrict MlIIadero Crook Phase V Flood
CODtrolProject
Dear Mr. Wanger.
This Jeuer n:spond& 10 • request for additional infQml&lioo made 01 a November 18 meeting .
attended by represeutalives of the City of Palo Alto. Bmm Pad Neighbmhood Asoociatioo.
Sallll Chra Valley Wa:er District (SCVWD). !be Depanmeru. and Brown and C&ldwell. The
impactS of SCVWO's Maladero Creel< Pb&se V flood control ronsttuction ac:tivities on the
cround~ ,...".,norjon .(f0llS of the mnview·Pmter Regional ProgI3ID were discussed.
POIeIItlaI impac15 iclelllified were t=powy disI1lptioo of severoIlnterim hmt:diaI Measure
(IRM) Number 4 croundwaler extraction wells and ",,1Ihead damage. As described below.
"" believe Iha! built coocems tall be effectively miiig&l£d prior 10 C<l<ISInlCtion of !be
SCVWD project.
Tomporary DImJpIIoD ollRM Nomber 4 GroomdwlllOr Em¥doo
Four of !be eleven IRM Number 4 groundwater extraction weUs are Ioc:aIed on !be cast side
of!be Bib PaIh. The design prepared by Bro ... l1 and C&lcIweII includes tluee IaleraI pipelines
~ these foW" weD.s 10 !be main conveyaoce line along !be wesI side of the Bike Path
(WeD.s BP~ and BP-46B share I common lalenI). Eocb of these tluee laterns cross !be
alignment of SCVWD's .. cavalioo for the Phase V flood COl'JJOi bo. colvert.
"""~~-................. --
...
"-;"'~~
Mr. Alfred Wanger
December 3, 1993
Pqel
During die November 18 meetlnS, it was initially thought that die la:eraI lines would b.1ve
to be ..... oved for die _ of SCYWD'. consuuctioo IICtivities and repLll:e<l &I • lI.ta:
dale. A$ a re.sult, die four ,..lls on die east side of die Bike Path were expecled 10 be out
or servioe for as 100, as oae year.
We have reconsidcrcd die la:enIls in queslion IIld belie .. thai their dc;sign can be modified
to allow well opcI2tion 10 COIlIinuc with minimum cIowntimc. A3 cxpl&incd bolow, woOs
BP-46A, 81'-468, and BP-62A wi1l bo shut do ...... for lip 10 ODe ..... 1: dlIrin& die SCYWD
COIISInJCIion. Well BP-58 wi1l bo DOlt of aervice for up 10 one mODlh. This ih<xt-1Dm
disrupIioa of die IRM Number ~ woOs by die SCYWD projccl _ b.1 .. DO tDaSIInIb1c
imroct on gIOUIIdwaler reme<IWion in die vicinity or die Bike PaIII.
We propooe to lie each of die 1IIeraIs 10 • buried support (for eltllDple, """, I-beams)
~ die _ of die box culY<rt excavalioo. SCYWD', coo_ w'.u bo able to
acaftIe """"'" die 1IIeraIs and theo C<lDSU1lCt !be box culvert belo ... die S!nlctmaIly
IIIJ!!IOIIOd pipelinea wbilt. they .remain in oerviI:e. The aupport wi1l a!S<l provide • ~
of pbyaicol proIeedoa 10 die exposed pjpeliDes.
Similar IlldIciqTJea have beca used 10 procect pipe1ineo at 0Iber <:OaSInII:IiOll siIea. Our
pRUmiDary ""WI"on' show l!nICIUBIIy IUppOlte4 pipe1ineo 10 be IPcl>mc.J!y _ aod
impJnwntaNe for 11M projccl .. welL SCVWD bas beca adviJIo4 of Brown and CaIchodI'.
proposal and agrees wilh die """""I't OYer die DeXI_ weeb, we wi1l be WIIIlting wUh
SCVWD iliff and DID' COIIIInICtioo COIIInCIQr to develop • dcIailed plan for i .... Ding die
laIenI SlIppIXtS ill ~ of SCVWO', COI>SII\ICtioo.
'Iheze is • miDor riat ol pipdiDe cSamaae at wells BP-46AI46B and BP-62A wbile din is
being remo,""" &rouDd die IaIeraIs and suppcns _. die initial excavation. A$ a miliptinn
easme, SCVWO lwl ougeslO<! thallbese wells be shut dowo prior 10 die .. cavalioo of their
rospeeIiYe bletaIs. This dianIpIion. which _ las! DO 10"'" !.bao """ _ &I each
Ioc:aIioa, will minlrntte die amC!Cltlt of exuactod ~ thal coulcI be mIeued iD die
event of pipeIiDe c!.ama&e-Well operaIioII wi1l IaUIIIC ooc:e SCVWO', initial excavalioo is
alIDJ>l=cL
AI Wen 8P-58, j, may be necawy 10 ~ die la:eraI and illl supponing atnIC!U!e wbilt.
SCVWO's coottac1Ot pours I:OGI:reIe for !be roof of the box culYetl. DiInlptioo of
~ eXl>.-..:tioD at BP-58 wi1l 1ast DO longer !hill <JOe mootb. The We:al will be
replaced 0Z>Ce die box culV<tt c:oIlI:reIl: is cured.
WollPr-....
The Hillview-Porter Regional Pm""", currenlly maiotains approltimalely 20 wells in die
vk:iDity of SCVWO'. flood amtrol project. Theae .. 'elIa were oriaiDaIly iDsIalled for
, ... ..~"'" ... 1M CIiIIItwII
Coro.JtantS
\
------
Mr. AIfrod Wanser _bee 3, 1!i93
Po&o 3
-,
~ ~ A& DOIt:d above. ele'IeD wells will be used for BfOU"dwater
_ .. port ollRM Number 4. CoosIm<:Iion equipmeru could damage lO!D< ol _
iiDjX_ .... ,!brads
BIOWII IIId CIIdwell is =tIy preparin& plans '" proloCt wellbeads Mlich could be
impocIed by Ibe SCVWD projecl. I'IaI!ninJ is DOl yet complete. However, based l1li our
_ ID -. .." beIie>e JIIaI It will be _II), feasiblt '" proI.eCI all Ibe MIls usmc
1OCImiq_ ouch u _ piIiq. _noti"" ollnffic boIlanIs. WiIity bol<ea. IIId beavy sroeI
pIaIe (1mICb pIaIe). Tho pLm will be ",viewed will! SCVWD IIId Ibe agreed proICCIive
__ (or c:odI weIIbead will be implrmrn"'" pDo< 10 Ibo SIIrt of Jbo IIood COIIllDI
CDMIluCIim project SCVWD will wriIe a spedr"'"';,I'i cm whicb m..W:.& its amttactor
rospomibIe far cIamaae _ """"" ~ jn ... n.rion of I!le approved ~ prorectioD.
'b, "41 ~. W\~
Da'Iid R. Mom .
IRM Projoct May ...
DRM:evm
cc: -Mr. _ W. JoIwoo, JoImooI> Agoej,,", EI CariIo. cantomia
Mr. Coag MIi. SIma CIa.a Valloy WIIet DisIIict, SaIl Joee, cantornia
Mr. RMen Sdwbert, City ol Palo Afro, Palo Alto, cantomia
Dr. mil' HanIiq·BIlIow. BmcII Pod Nd&bbodJood AuociaIiOll. Palo Alto.
CaIIfOmir.
U "D~"" ..... -Con5UJam;
•
I ,
.---~ -~.
"
Mr. Alfred Wanger
Do<:ember 3, 1993
Page 4
bee: Geoff CanlIew
Poul Schultz
David &so
Tom McOo*y
1
___ FRO'1' Cl'I< tF"" V TO'
ir.,!(01 CAourOllN\A _ OMAO~~'iI:L ~Or::Ctl()llj Au ~-Nc::
01115 !';86 2265
DEPARTMENT OF TOXIC SUBSTANCES CONTROL
,.t~IONl
700 HEIIQ Aw....:wtTl zoe.
aililtfl.tv. CA 0411o.Z1S1
Kr. Pat~r Johnson
Johnson Associates
900 Galvin Drive
D~cember l4, 1993
21 Cerrito, CaUfornia" 94530
Dear Hr. JohnsQn~
XILIinn POR'1'ElI. IITZ:, 'PALO Ju.'I'O, CALIFOItllIA -
OIUID 110. liSA .. /&g-GH -DI'l'ElIIlI RIDIEDIAL XZ!:ASUltE NlIIIBl!!R ,
The Department has revi3wad the Oecembe~ 3, 1993 letter
(enclosed) aubmitted by Brown and Caldwell regarding tha impact
of the Santa Clara Valley water District Hatedero Creek Phase V
Flood COntrol Project on the Interim Reaadial Measure Number 4,
the 801 Park ~ike Pa~~ Groundwater Extraction systew and
conveyance Pipeline.. Thil ~.a&ures described: in the
oecaBbOr 3, 1993 letter to minimize the disruption of the
groundwater extrection syste. are approve~.
If you have any questions, please contact Alfred Wanger ~t
(5l0) 540-3829.
knclosure
cc: See next page
Sincerely,
1-.~~
~arba~a Coler
Ordt Chief
Site M!ti95tion 2r~a~h
5.2.6 ~ of Solis Analysis Results
5.2.6.1 HalogrmtrA Villatjk Orglnic Comoounds and QaunncblQrine PeSisides
.nd!'C&
As delcribod abo-;e, DO dcItcIaI>le c;on~"r.lIion' "r halogena!ed volatile oq:anic oompoo;nds
(HV0Cs) were noportod in ooil wnpl .. lCsIod from any of the soil boring. drilIcd ill the
Phise S $IIbsurllice inYCOliplion CorICCIlIralions of 4,4 '·DDD (2.0 I'3fIc8} and 4,4 ',DDE
(1.31'C1'k&) ~ del.....: in lbe sample from Borin, 85·21 from 1.1 r ... below gI3de
ore not sjgujficanlly _the Iabontory rq>O!led del<dioo limits in soil (O.62S "gIq) {or
_ OigailochIorine pesticides and .... weU below .... bIisted Je&UIalory thresI>olds. The
jD ..... w:e of U3Ce _ of DOE and DOD in !he soil at sIlaIIow depthA is IypicaI or many
1oc:a6ons in !he Santa CIua ValIey b<oc?use of former ~ <hallow wrface applicuio<l
of DDT throur;houl the CoUilly {<>r ap-icuItutaI pest conlrO!.
As mentioned jHC'IlDusIy in SecDon S.2.4, sdCCle<l sampk.s from bmings BS·2, BS-4, BS·ll.
W.s.. 7, aDd WS· 19 """" analyzed {or petmIeum Itydrol;arbon.s 10 evaluate-!be possibIe_
of fuel spilIs raulting from former raiI:oad openlions aloa& !be project alignment. Selo:iaI:><I
sampla from borincs ~, W$-lD, W.s..12, an<I W.s..13 were analyzed for peuo:.u ..
hyd"",iUi>on. that may have originared from p<CYiDus releases or b)'<ltocatboas from former
__ aldie V-..ns Admini_ Hospi!al.
Soil samples from Boring. 85-2, ~, 85·11, and W$-Il COIIllIin<d one or more BTEX
."""'P"''''''' above Ih:ir -... limits, but did not COII/ai.o dr!rdable levels of TPH" or
'll'B-4. lJ: all caaos willi ........ hle byclJocaDoas. !be BTEX compounds 0CCIlmIcI at
~ oear Ih:ir nporUd cIe!tc1joo limits. As in !he pdJIIleum hydroc:arbol1
......... ",,;..,s lq>Q<1ed for IOiI sampIeI mkea from Ill<> borings along the Phase 4 Blipme<t
(Woodward-Oyde Cocwdlanls, 1991). our opinioa is that 1IIC$O cuncontt2tionJ .... below
levels that ""I>UkI _ a .;pu""", risk Ie sUe ",-., base:<! on California', "No
Sipi 5cau l Risk Levels" (TJtle ll, Artide 7, SecDon 12701), an<Ilbe dcU:cI<d """"''''''atiorlS
.... not likdy, in our opinion. io affect ...... or disposal of soil ",<2_ dmiDg
~ . ,
As JIICII"""'" above, """" of Ill<> RpOr1Cd m<:ta1 c:onconlJalions ~ at _ levels
IOCCI<'CIiI1g III Ill<> CIiIaia of caJifomia Code of ~ TJtle 22. Beeause Iq>arI<Id. m<:tal
"""""""'..,.,. are either below the numeric.aI._ of their rcspedivc sn.cs Ill' -.beIow
.... limes their respecti¥o sn.c, !be __ m<:ta1s ~ &Ie DOC libIy, m our
opiIIiDn. 10 atfcct eiIIIer worbr safety. cr RIlle or dUposal of ooi1s eu:avaIed dmiDg
coascnx::cioo. . ..... . ...
S·I
... ,
.'
5.1.6.4 Cpur'wMns and RvrurunmdaCjoos
A!; in !he !'I:Ias<O 4 inYostiption (Woodward-Clyde Consultants. 1991). findina. for the
cootamination investigation. whicb are ba.scd on samplings of ~wive portions of soil
benc:adt the Phase S alignment, suggest !ha!. issues c.ooceming soil contamination wi}: not
baY: an impact <Xl !he oansttuc:Uon phase of die project. None of the analytical =u1ts
~ !bat Che ",,1. bcnealh Ihr, Phase 5 angnmer.t .. 'OUld be classirled as "!Iau.r<lous·
occording 10 Califomll Title 22 cri/eria, HVOC levels were ~ al all boring
localities 1e$Itd, The """"""tnlions of pesticides d<iecIal in the sample coU"",,", from
boring B5-21 a,e bcIow california', ha.=d Ih=OOld for ODD and DOE as defined in Title
22. Likewi:e, tarJ<U>d mcIa4 and cyanide wore cOlHle=table. Of IIIey 0CCIlIRld at
ooacenlr2ri<>ns numerically bcIow Ihei< eoI3blished rqu\21ory dueshnlds or 31 <:onc:aIttalion.
judged '" be sufficiently low 10 """"",I signifu::ant leaching PO'""'"". No delectable
<XlDO!Illrations of pso/ine <l< diesd fud """"' foond in soil samples at Iocaticns deomed
liI:eIy 10 have I:.ecn affecood by Ibem. BTEX compoonds were ~ in' soil samples from
four botin&.. but Ihei< levels .,., judced 10 be 100 low '" COIlSlitute ~ hazard. in our
profc.ssKlnol opinion.
On die basis of our findings. it is "'" opinioo thai onder current conditions prevailing at the
rime of /his~, _~ ofHV0C5. pesIicidet «PCBs, gasoline
or ~ COIISIllllCnts. or mdaIs .... eyanide are no<likt!y to be 1"=1 in subsurflI<:e
soil in !be area of the proposed PIwe S aJi:nmmJ ex.eavation.
",""..mg !hat groondwata flaw C<IIKIilions do ".,. clIange JUbstantially from _ !hat
occutrecI cIuriDg the Phase S ~ and coctamjnarioo invessigalioo. waste soiI
. rented dutitt& cxca"aIion for the pioposed be»: adYCrt iJ: apected 10 be disposable in any
CIus m IaDdfiIl !hal will 0CIlI:p( it. Before aazpDng pocenlially hazanIous wasil: soils, most au. m landfills "'luUc OIl .maIyti<:aI profiJe for Ihe soil, _ is ohWned by analyting
JdocIed composibesarnplcs from !he soil stcclpile for !hose pot<:ntially hazanIous compounds
whid! may oocur in die in-snu soorce maIl:rial.
Should peviousIy myJetrcted am«amination be JO:nmtmwed, -we recommend that me HeaJJb
aDd Safety Plan prepared [00" Ihe oiIe (wiUch Jbould be ptepmd by die aJIIS!XUCIioo
__ under the direcIion 0( a CerIiIied l.-w HygieoUl) be amcQded: 10 a<IdI= die
specific potential hazards to worIa:zs and any -. who will be involved in !he IXIII3Iructioo
!hal could rauh from expoowe to Che ~ a>n,amilUl1\1(s). The ROU!ts of /his
iJM:stip"m indicabe !hal _ Lev.:! 0 safety equipm<n! • .!Ilould be adeq_ for die
pioposed .....n: aI "'is ail£. _. wee tee:OIIIIDOIIds IhaI Le\'el C equipmeot, including
proee;:tivoe cI<lIbiIIg ODd m purifying rospinIon, be available at all times to ...."., die safety
of COIISInIcIlor; penoomd in die event ilia! silo condilions .::hange. A. flame jopjzatjon
~ (FID) or pIIoDoniDlioa derrdDr (Pro) and a lraiood opaaI« should be aYailabIe
at !he oiIe at an rimes to monitor !he ambient m mncf.cjoo, aDd die braIIIinI c::oiwIiIioos in
dlelRolbiDg space aroomd aDd widDn !he excavaIion. An c:xpIosive ps!!I(""Ylen level
iDdic:ator should abo be available 10 monitor die gases !hat could acr:umuIaIe in die caafiJ>od
spoce of die 1R:nCh.
5-2
Jmuary 13, 1994
Ms. Nancy Lytle
DepartmeIH of Planning
aDd Community EnvirDD.."IJ.eD[
City of Palo Alto
250 HamiitoD Avenue
Palo Alia, CA 94303
Dear Ms. Lytle
.,.' ."
SonI:o Cloro VanElH Wa~er District (:)
Sl50 ...r.MADE~ EXp~ES)WA\'
:)..,N JG5~. (.01, ~llg ,:Mac
TEW'HON~ (J.08'~ 2t5 :MOO
FAC~lE rMJ8: 21)6,0271
-.N AFfW.ll,l ... C!;()t; EMFi.Om
Subject: Matadero Creek Ptlase V-Negative Declar4tKlOl for d'.e Site. and' Desigo. Appikatioa
We have re-newed the subjea dcx;;umem which was faxed to the Sa:n.ta CJir .. V~ley W~er District
(Du.trict) earlier thi5 dale. This letter is to ccnfum that the Distria. agrees to include the mitigation
measures iD the l"4.atadero Creek Phase V flood oomrol project.
We will cooti.ou~ lli'Orking with you in submitting the Site and ~Lgn Application for review and approval
by me Planning CommIssion, ... .rchitecrura! Rev1ew Board and the-City Covm:il respectively. We have
C!.UTentIy resdledu!ed the ~vertl.!.i.'1g: date for bid pmposals 00 Much 8. 1994 10 accommodate the above
pro«edings.
Your continued coopet&tlon towards compieting this crittcallink for the construction of the vital flood
COD:trol project is much appreciated.
SiIIcere!y,
t({fh~
Supervising Engineu
f100d CoDtrol Design Division
The Habitat Restoration Group ----
!l<cember 20, 1993
Mr. Robert Sch "bert
City of P-.Jo Alto Planning Department
250 Hamilton Ave.
Palo Alto, CA 94301
RE: Matadoro Cmok Ph ... V Tree Asstssment
Dear Me. Scbubert:
The Habitat Restoration Group has reviewed the proposed pla.1ting program and mitigation
measures for the proposed flood ""ntto! p"!iect (diveniC!l channel) fur Matadero a.od Barron
cn:cks. The ioDowmg recomm."dation, should be incorporated into the prnnit condiuons:
Planting PIau Recommendations
1. To preserve the potential r.est sites of red-tailed .nd red-sl,ouldered hawks in ~
eucal)ptUS _ along Malad"", Creek, = rem<>val and construction activities in .this
..... should be avoida! during the Desting season (March -September), Tree removal
should occur prior to nesting or after young ha,'e fledged (Ocl<lbcr -februa,y).
2. The Conc:ep!Ual Planting Plan far the lower sediment basin· .. depicted OIl Plan Sheet TA
S .. ~ow. replacement plantings mainly on Ibe northern portion of the basin. Replacement
trees 2nd shrubs should be increased to include more of LOe perimeter around the bosin
(i.e., southern poruon) as feasible. This ",ill increase screening of the sediment basin
from adjacent land u ....
3. Tne Conoeptu.al Planting Plan for tile Confluence PI"" os depieted on Plan Sheet TA-9
shows replacement willow. located III tile top of the gabion w.ll,. Since willows
commonly OCC1>r lower on the bank, it is =ommended 1hz! these willows be replaced
with coast bve oak ttees_ If compau"le with channel capacity, wiliows should be planted
ill the lower-most gabions. next to tile water's edge.
4_ Santa C1an VaDey Water District (SCVWD) has pIoposed (SCYWD submit'.ai to the
City of Palo Aito, no date) 90 Ine.s 10 be removed; 32 to be ~-ansplanted; and 100 re
planted. This a.pproxilmi.es a 1: 1 replacement ratio. This is not deemed to be adequate
mitiptioa as a 1:1 replacemem ntiodoes not mitiz;ate for temporal losses ofvqctative
cover or wildlife habitat vaJues. It is recommended that there be a 3: 1 replaocmer.t ratio.
In oddltion, tile $11= of the tIalIsplanted It..,. is clq)C<:ted I<l bc lower than the 90%
.uMva! rate specified. A transplanted tree t.~at fails (e.g., dead or w.erely declining)
should be mitigated for as. . .0:1 removed tree, and have three replacement plantings. All
P.O. Bo,; 4006 • 6180 HiJ'hwaJ ~ • hItOD, Catifomia 95015 • T£I~oot (408) 335-6800 • FO" (40S) 33U810
Calj(omie CcrI~ Licc:nx '571{137
"""----~ ----.-,
j
i
Mr. Robert Schubert
RE, M.ta<1erc> Cr<ek Phase V Tree A'5eSsm<nt
D<:c;;mber 21, 1993
Page 2
~laoement pJa..,tings should consist of 5-gallQl1 conwneri of native species 'tWit."I cons3-
ck:ation giver. 10 water ~oe<!.s and location. All replacem<nt trees will be pianted near
the same locatioo of the orig; n>l transplanted tr:e, unless the revegelation specialist!
amorist deems that an altemative location is needal.
S. /U proposed by SCVWD (SCVWD submittal to L'le City of Palo Alto, 00 clal£), steps
should be !alcen enrun: !he ,"ccess of transplant suIVivai. These steps are refined as
"'1k>>>:
a) Only!r<eS in vigorous health and between the sizes of 4· 10 inch.,. DER will be
ttansplanlt<!.
b) Tn.nsplantina: will ~11f dllri.~S the cooler months (Novemboor throui:h Februa!y).
0) Watering bo.sin. wm be I8rge enough to encompass the drlpline of the tree (gonerally
36 inches in <fiam=).
d) A revq;elation spec:i2list or =tifiecI arbori.st will supervise ali tree salvage and
R'pIantina:.
e) During the 3-year maintenarn:e period, the contraCtor will be ,esponsible for wer
ing, pnmi"l, and tttating the tree for pest or disease problem •.
6. It Ii RICOI!lmendecllha! planting holes for trees and shrub. be e>;~tecI to be twice the
size of the root bali or the plant (S-gallon oontainer). Siow-nkase fertilizer should be
placecl in the bottom of each planting hole. The holes sbould be back-filled with native
soil from the project site. A layer of redwood muicb is =""",ded to conserve moi s
tuie a.'ld controi weeds.
7. A> propos«! by the SCVWD (SevwD Pian Sbeets JR-t through JR-4), • formaJ irriga
tion ~ is planned for installation plantings. We concur that irrigation will ~
!be survival mae and promote plant eslablishment. It is e>;pec:t£d that irrigation will be
""luired for the first 2·3 years after installation. The frequency and dUt2lion of
irrigation may fluctuate, !lepending on maintenance and monitoring observation" and
should be moniwred by. =~c1ation speciaJi>t/arborisL
8. In gene:al, waterln& basins shanld exter.d fu enough to encompass the drlpline of !he
canopy of 111. tree or shrub planted. If !he ~l'OIlnd is sloping, • 4-inch high. hand·
compacted eaJ1h berll'. shotJld be constructed alan: !he forward edge of the planting
_ for a wal£ri1lg basin. rfthe P'O'Jnd is level, a 4-inch high, hand-compact£:d""""
'>enn 36 inches in diarnc:u should be con,truct£d around the plant hole for a watering
basin.
Mr, Robert Schubert
RE: Mata<ler" Creek P~ase V Tree Assessment
F. ':;,.,:
December 21, 1993
Page :;
9, The Planting Plan "" depioted on Pl.,.. Shee' PL-3 shows the southern limit of hydro
seeding at I-i.tadero Creek. It is rncomm.nded that hydroseeding be continued soutll
ward to the e:td of the projec; area in the vicinity of Gunn High School.
10. Zentner and Zentner (N"". IS, 1993) has suggested a hydr<>seed ",ix that is composed
.of nali .. wildflower and native grass species (see attached letter), It is recommended
that tho seeding ra"", per 2C'" be i.'ICTtaSed :os foilows: purpl. stipa -from I Lb. to 6
Lbs.; bhlc rye -from 4 Lb5. to S Lbs. As proposed, the hydroseed mi. consists of
severt speoles. It is recom!TlCllded that the number of species (species richne,,) be
~ Potential additions include C'2]ifomia brome (Bromw ctJ!iIUllUJ) at S Lb,. peT
&Cle, and sticky monkeyflower (M"1RIUlUJ aunmtiacus) (new name per Jepson, 1993) at
2 Lbs per acre.
11. Aaxnding 10 !be lower ~t basin Cone<ptual Planting Plan (Plan Sheet TA-S), only
two .~.rubs "'" proposed for revegetation, ""yore ;,rub and dogwood. It is recommen
ded that !he foIlowi", ~ be lidded to tile shrub layer as a means of increasing food
for wildlife, and providing a visual screen around the basin: California blackberry
(1W> .. UTJiIu4), wild rose (RoJa califomica), blue olc!etben) (Smnbucu.; makana), and
red flowering wrren! (ftibu sanguineJlm \'21'. glWiMsum). -
12. Acx:orcIin. to the lower sedi~1 basin Conce;>tual PIa.~ting Plan (Plan Sheet TA.S), over
half of the "'Illac..-ment tree$ Ale white alder Wnus rilmrJ>ili>lia). According Ie the
Mat3dcro Creek Tree Assessment Survey (Zentner aod z.:..::>er, '!192), white alders do
nO! commoo1y oceur along Mala<!ero C,,"-'Jbe us< of thi. :tpeCies is not recommen
ded, and shooTd be replaced by oaks (coast live or valley Nk,) or sycamore (Pi=us
7QC<Tf1()sa) •
13. Accooling to the Conflw:nce Plan Conceprual Planting Plan (plan St.eet TA-9), two
species are proposed for th. shrub laJ-er, arm)'" willol\' and California hlackberry. It is
reoommended that the shrub layer be more densely planted and have a wider variety of
species that will provide a food SO"". for wildlif.. P<>tential lIdditional species inciude
WIld rose, California hazel (CoO'11LT caJijomica), an<! red flcwerlng cum:nl
14. The Co!lt1uence Plan (pia." Sheet TA-9) calls (or red willow and arroyo w111ow.
According to an assessment of Malad= Creek COIlducted by the Habitat Resroration
Group in 1993, the majority of the willoW'S observed w= yellow willow (Salix
lasiantlra). Therefore, it is recommended lhat at least half of the replacelr.ent w;ik>ws
be of this species.
Mr, Rohort Schubert
RE: MatadctC' Creek Ph .... V T"", Assessment
Plant Protection
December 21, 1993
P<lge 4
15. Trees that ate to be retained (adjacent to the zone of disturbance) ,hould be prol«:ted
througllout L'>e construction phase by the pla<:<:ment of tempo",,-")', plostic construction
fencing th2! is secured with metal T-posts. AI; propose<! by SCVWD (SCVWD submittal
10 the Cil)' of Palo Alto, no dale), the fend~, will be six fret in heil!ht and installed at
'the tree's dripline.
16. Not proposed by SCVWD, but =mmended, is that the pia".""",! of the protective
f=inr be inspected by • qualifud botanist or certified aJt-orlst. The ootanistlarborist
should periodlcaJly in~ the adequacy of the fendn, through""t the constn:ctiO<l phase.
17. Itls prqlO$ed by SCVWD (SCVWD sllbl!littallO Ill. Cil)' o(Palo Alto, no dale) Ibat in
certJiD IoeatiO:lS, a gravel C\Uhion 12" in dqJI/I will be plaoed where the construction
pzIh is under the drip!inc of the trees. Tbe ~ c"",,ion will help to teduce potential
root damage and soil CQfI1piction.
lB. SCVWD ptoposes (SCVWD ""bmittallo the City of Palo All", no date) that. for tnes
with !mnches or roots which overllang into the constnJction zone, lower branches and
Cl<paoed lllOI5 be pnmed to provl4e clearance for the movement and opera!ioII Qf con
SIruI:Iion "Iuip",."L Pruning will consist of clan cuts by • qualified tree SW'I00<l
posoessing I C-27 Landseape Con_'s LiceNO. The City of PLio Alto's A1borist will
review and approve an pnmin&.
Renaetati ... MAiDtenam:o Pro~ram
19. It is nooommended that a prog:am be devolopecl fur maintainin, the installr<! eontai,er
stock and tr.msplar.u. Maintemmcc is ~ui!r<! to ensure SIlCCe$>-fuT establishment of the
revegelation plantings.
Maintenance should be conducted fer a minimum'" th.'''' years &r.d should inolude main-
tcnar.ce of watering basins, weed conltO!. irrigation, pruning &lid lhinning, plant
j>n)IeCtion, ""Wlemental planting, and debris removal.
:ro. A!.y trees or shrubs that do not s'JMve during the maintenonce period should be
"'Planted under the supervision ofa """'Iletation specialist (to meet 90% survival criteria
... presented in 1122, below). IrrigatiOD "I"ipmen: should be inspected, repaire<i, and
replaced as '''Iuired '" ens\lre propa operation and adequate plant growth.
-.
Mr. Robert ~hubert
~ Matadero Creek Pha.o;e V Tree Assessme..1.t
Jttyegetation MOMoring ~
December 21, 1993
PageS
21. It is r=mm""de<! that • monitoring program be developed for the revegetation areas.
Tlie primary g<>aJ ~f the monitoring pr<>grun should be '" document !.1C succes' of the
mitigation plantings a."1<i recommend remfdial actions, if the revegetation does not meet
perforrnr.nce criteria. The program should be impiemen ~ed in tv.·o ~or pba=, estah
lbomont period monitoring a"d ionr-IerTn monitoring.
22. Establishment period performance criteria >IIauld be developed. Upon preliminary
review of the revegetation project, the fon~ crileria are iUeiested. For each of the
thne years after installation, there should be 90 'ib survival of in.wJed trees and shrubs.
If., any time during the establishment period the petoent survival falls bel"", 90.0%,
remedial planting. w'..ll be neressary.
For....:l> of tho thne years after hydrosoedin&, seeded areas should have a minimum of
60% ~ co..-er. II dW peroentage is not met, supplemental seeding wiD be
IeqUired.
23. Establisbmont periccI monilr>rin& should be """dueted by • feVegC!ation specialist or
q1mlified boIanist and should include =naissanoe-Ievel SUtVCyS, quantitative sampling,
photodocumenlalion, and annual monitorin, reports that document the ZWIII$ of the
monitoring, maint2nan"", and revegetation activities (If applicable). The report will
recommend remedial actio .. to be undctta1teo if the project is not meeting performance
criteria. Annual ropo:ts will be submi~ to the City of Palo Alto and California
Department of Fish and Game (CDF &0).
24. . lAIIg'term performance cri:.:ri<;. sholild be de"elope<! for the following attributes: average
tree bcight (by species), percent canopy cover trees, percent canopy cover shrubs,
~ of invasive noo-rr.ativc: plant species, and habitat value in terms of wildlife use.
25. Long·1IOnn monitoring should commence four yean or.er plant in<1allatiC);1; >llauld
continue oppro.imately 15 yean aft.,-planting; and sh""ld be COIlducted at 3-y=
intuvals by 2 qual; fied boranist or plant ecologi!t and wildUfe biologist. The l..,gtll of
th.lang·term monitoriIlg period is SUbject to the project's success.
26. Long .. term monitoring -,rdll be quaIitiltive in nat"",re and will assess: habiw v-.Jues in te..-ms
of vegetation (e.g., canopy cover and species composition) a.nd wildlife use. The results
of recon~~ce-leve.l surveys, photoclocume.ntaoon J and remedial measures (if
applic3ble) will be included in monitoring reports that are ro be submitted every three
yean 10 the City ~f l'1Ilo Alto and the CDF&O.
\-.-
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Mr. Robert Scbub<rt
RE: Malad= Cn:ek Phase V Tree Asse.sment
December 2 L 1993
P"lle 6
"I'he prec.eding recommendations are for YOl!f review. The list is. not ne:ces..sarily tOrnplele a.."'ld
is intended I() I'",,·jde ",ide1ilte$ til.t may be ",f"'led in tile final rev<£etation plan.
PIea>o oontact Valerie Haley or myself at (-lOll) 335-6809, jf y"" ~ .. ve any questions.
Kalhlcoo L)'ODS
Pian! Ecologist, Senior Associate
-z.k..lP'P'6-~
Valerie Haley
BoQnist
M3I'ch 22. 1993
Mr. Oeorge Bagdon
Actiog Director of Pub!ic Works
City of 1'>10 AI",
P.O. Box 102S0
Palo Alto, CA 94303
Dear ME. ilog<loo:
File: I021-lf<6
Subject: Matadero Creek Pbase V-Use of Matadero Avenue as.a Constr ... ctiOD Access
The foDowing: is a summary of the Santa Qar;a Vaney Water Disuict'~ (District) neigbborbood our.reach
program for the subject proje<t and • request to< City of Palo A~o (Gty) approval to use Mwdero
Avenue as • oonsttvaicn.~.
On <lctober I. 1992, District staff met wiUJ the Barron Park Association (BPA) offlcers.and City
staff re:anfmg the subject project. Construction schedule, truck routes • .and construction phasing
were the focus. of discussion. SPA tJ.pressed the importance of reopening the bicycle path.
preferably in stages as uch construction pfwe is completed, to the community as soon as poss Lble.
On December 16. 1992, District staff met with City s:;:aff to present 5!Weral construCtion ST3ging
scenarios based on different at«SS alternatives and to reqlles.t sopport for the use of M3Udero
Avenut"-as a col'structioo acc.es,s. It was decided to follow the Cjty~5 sugge:st;on and poll the
Barron Park coD"llUWlity for cons.e:nsus in using Matadero AVEnue as a CtlnstnJctiOD access.
em January 19, J'993~ Districtstaft' met with BPA Board members regilding pro~ construction
access optioHs •. altenwive construction schedules. and the proposed format of the Jteigbborhood
pon. BPA concurrr;d "rjt~ th~ limits of the Distria·soutrea.ch program (Exhibit A).
Ora February S. 1993, me District sent out "2,018 letters to residents within lhe Barron Park
eonummity to invite the re.o;.ldents to a public meeting to d lscUSS proposed oollStructLon schedutes
and 1he use of M.w.dero Av.enu.e as a constnJction ac.ccss. A project loation map. altemarive
constn2aioo schedull'!S:~ impact anaIySe:5 ror each alternative, and constructK>n access quationP..lire.
....,ete aI.so included with the letter (Exhibn B). Residents were. liSted 10 rerun':; the qUl'::$tiOMaire
indicating cheir preferred constructJoo sehedul e alternative as rel.a.ted to the use of Matad.ero A venue
as I COQStl'uctioo acxes.!;.
On Febnw"y 17. 1993~ a notice was advertised in the Palo Allo News .BnilQunclng the lime:,
iO'"'"...ation, and purpose of the Maradero Crux Phase V public meeting (ExhLbit C).
Mr, Georg.e Bagdon 2 March 21, 1993
On FcbruiU)' IS, J993, the public meeting was beld olt Hoover Elemelltary School. ApproxiIllatel)'
100 resjdents attended the meeting. Project badgrouod, funding. proposed flood control mwures.
a st3tlls n:part add~ing the concerns expre:sed by the residents at the September 2S ~ 1991 public
information meetiil,£:, ooIl$truction &CCe$$ alternatives, and construction impacts were presented and
disrussed.
11l order to m;njmiz.~ the disturbance to the Barron Park: comrnunir:y duTing ((Instruction, we pr~ to
designate Matadero Avenue as conslruc:tion access for the coostructkln of Stages A and B (Exh tbtt 8) for
:I maximum 6-mc)l1th period from t1le time constr'UCtion is inttiated in Stages A we! B. Tnc maJon.."'y of
r~idents at 1h~ meeting and the q"..IestiOMaires reaived frlJm cl!izens indicated that two-way construction
acct".$S on Matadero Ave:nue i:s. preft:rable du~ to shorter construction period and roouced construction
costs. In .order to address the residents' safety concerr.s fo.:-ilSet'S of Matadcro Avenue, the District will
bold anothu p'Llbtic information meeting su~en~ co the City's &ppro ... al of construction access on
Matadero Avenue. Thi5 Dleeting wlii discuss specific mitigation measures. (Exhibit D) proposed to .eOSL!r-e
:safety and minimize construction impacts.
The. fonowir1g tab!es swnmariu. the qUe50tionna.ires r;:ceivt:d from the residents responding 10 the
aJtemati ... e construction schedules as related to the use of Matadero Avenue as a (;Ons'".ructiOD access.
TABLE 1
Summary or Returned Que:stionn:aire:5 From BarTOl'l Puk Residents
Attf$$ Allernatives: N06. Preferred Pen:entaCe
No. I: Two-wayan Matade:ro 317 80.0
No.2: Qne..way on Matadero 21 5.3
NO.3: No construction .access 45 11.4
No alternative selected' 13 3.3
TOTAL 396 100
TABLE 2
Sum.mary m Retumrd Questionnaires From Malade.-o A't'enue. Rt'Sidents
.4.«::ess Aiternatiyes Nos. Prd..-red Per-cenl<lige
No.1: Two-wayan Matadero 1& 56.2
NoJ.2; One-way on M.atadero 3 9.4
No.3: No construction acceu II 34.4
TOTAL 32 100
We are currer.tJy oegotiatin,g with the: Veterans. Administ!"alion (VA) to secure .additional construction
.acte$S t.'lIOUgh their facility which wt: belie..,·e will shonen constmction by up to I yeoar. VA ha.~ rrbde
'\
)
!
I !.-~
I
,
/
Mr. George Bagdon J MiUCh 22, 1993
it cl.ear that twQ.way use ofMatadml A venue ~ • ~nditioJ:i for granting the Disuict.a consrruC!iOD ac~
within 1M VA property.
Ia SlJIlUlW)'. the majority of ra.wents and property owners within Barron Park support two-way
construction access 0:0 Matadero A""eoue in conjunctioo ",:ith construction access on Ar&..radero Road,
The District: requests that the Ci!y allow Matadero Avenue be used as I two-way consU'UaiO[llCCes5.
We loot forward '~ meeting witb )'Cu o.a May 24, 1993 lO di.scuss this matter and reach an agreement
m order to proceed wlth this vital flood control project. We propoS!! to meet with the D~ighborbood
shonly after this -issue is decided. If y(lt!. have ai'1Y quations. please contact me aJ the Camdec Office,
(408) 9n~710, extension 2670.
Sin=dy,
ORIGINAL SJGtrr.D llY
Nal Hsueb
SuperW;ing Engineer
Flood Comrol Design Division
. ex: Ms. Soson l.3Ddry
Beals Landsc:ape Architect'..ll"e
2 Noah MMIc ... Fifth floor
San Jo.e, CA 95113
Mr. Dave (haIron
PreoOlent
Barron Fmc Associat~n
3S7S El C<ruraI Sir ...
Palo Alto, CA 9430ti
K. Whitlock, N. nsueh, I. Sbintani. G. Fowler. D. Miller, V. Uco,b-Chen, File, Read
]C:lcg:Cf0322.a
..... -
, .
EXHIBIT A
\'
LIMITS OF OUTREACH PROGRAM
T
\ '. , .
i-' '
',;'
/
)
~
MATADERO CRBEK ~ PHASE V
Condltton and Mitigation Monitoring Program
Mit loot i99 M"a~wU.tJ..gn RnQfwnibi Ii Implft ty fo mC'lDt4tign' ~n t!2.-l2G.
1.
2.
3.
Tbe Upper onft~third of Tree _662 on Plan She~t 9 (i.e.
the plana entitled 'Mata4ero Creek w Phase V' prepared
by the San~a Clara Valley Kater District dated
December 8, t993 ahall be topped by the City of Palo
Alto prior to March 1st. rf it is determined that
Tree "'231 :til II potential nesting _ltfl by the City
Arbori8t In consultation with a wildlife biologi8t.
the upper one-r.hird of tha~ tree shall a180 be topped
by March lat.
The SCVWD 8hall revise the projftc~ plbn8'and
spacification. to allow not more than ~O.OOO cubic
yards of. ott-haul 80il from StageR A and e (the
rev18~d plano ~nd specification. ahall be Bubmitt@d to
the City ot ~~lo Alto Planning Division for review snd
Opprov&l) •
The SCVWD Rhall reviae the project plans and
Rpecific4tions to preserve Tree *],8 in it6 preoent
location and ae many other tr~ftS in the geOe1."61
vicinity as pOB9ible. (the reviGed phnR and
apeciticatiOOs shall be 8\lbmitted to the City of Palo
Alto PUblic Norke Rngineering Divieion end Planning
Division for review and approval).
llalldlblcafld.~
City Arboridl
SCVWD
Public works
Engineering and
Planning Division
SCVWP In~p~ccor
and Public Norks
Jnapector
SCV1tD
PubliC Workfl
Engirlf!f!ring
Division and
Pla"ning piviuion
SCVWD Inspect.or
and Public Works
Inspector
top tue (6)
Incorporate
l~H)guage ittt:O
project. pl~nlJ
and SpflC'B
Review and
approve plunE.
afld .pet;!a
Monitor grading
Submit cevi~ed
plans and opecB
Review llnd
approve revised
Dlana lind specs
ASBUrf! that.
Tnn: '28 and
other ere
preeer-vod
Target: Dote
.w-..~).o.t.io.n
M~rcl1 1, 1994
Prior to
advert.ising
for bide
Prior to
F..dV>'"trt.ioiI"l.g
for bidl'l
Throughout
r;ontft;rlJc:t i0l1
period
Prior tf)
.."dvertising
for bids
Prior to
advertising
{or bide
Throughout.
ccm8tructior.
period
:',
\'-J •..
•
." .
·)?~t" ,;: ,.".'\"-,
.::./. ,
F
Ic-ru'lition ~ltiQn MeAsyr. u
4. The SCVWO aholl revise the project plana and
.pecifications to insure that the Mstadero Creek
bridge .urf.~e mster1~1 b~eathe8 to edequ~tely dry out
after rainy period. (revi8~d pIons And specification.
shall be submItted to the City of P~lo Alto Public
tk1rku Bngineering Division end Planning Division for
review end epproval).
5. The BCWVD ahall revise the project plan, And
spec!ticAtions to limit parking tor construction
vehicles And workers to certain areas that ~re built
for thAt purpose. Pbllowing construction, tho,. ar~6S
JJhall be restored. to the same atandardy 8.8 the
r.emainder of the site (the revised. plong and
apeciflcations shall be submitted to the City of Palo
Alto Public Norka Rnginel!lring Division and Planning
Division for rftv~ftw and approval),
6, The SCVWD shall incorporate language .into the proj@ct
ttpecitications t"equirlng the contrllC'tor to develop and
illlPlelflent a tempol'ary srof:lion 80d Sftuiment Control
Plan (ESCP). The RSep .~all bo 8ubmitted tor review
and approval (within one w~ek of rec~ipt) by the City
of P~lo Alto Publtc Wor~8 Bngin~ering Division, Prior
to 1I\1bll'litte.1 t.o the City, the Rsep shell. be reviewed
and approv~d by th@ SCVND. The ESCP 8hall de~cribe
existing soil conditions: and tile potent,ial for
erOSion, proposed 80il stabilisation and sediment
cont.rol practices. The ESCP Ahall emphasiae
preserving exist.ing vegetation and the conlltruction
are~8 shall be revegetat~d ~R Roan ao fe~8i~le. At a
mint mum, soil stabil1lation practice~ ahall be til
pl~ce between October 15 and April 15, or when t.her~
ia floN present in the creeka,
.:I!adlb.aand.JIIW
RB&ggDqibL11~
Imgbmentot:!oo sewn
Public MorklJ
Rnginel!'lring
Division and
~18ruling Division
Se""D
Public Morkl!l
Engineering
Div1eion (tnd
~1~noin9 D!vi&iQn
SCVWO'B contractor
scvwo
Public Works
Bngin~ering
SCVWD Inspector
and public Works
Inrtpector
~~ ~...I1JW:
IAlWl for Comp~
Suhmit Tl!!!vlsl!!!d Prior to
plans and epecs advertising
with bridge tor bids
d$taillJ
rwviaw MId. P1-'ior to
spprov" t:'(!vised advert-illing
plana and epees for bids
Submit revised Prior to
plllnl'l ana fJpeCA advertlsing
tor bids
Rf!viow and Prior to
approve! ntvioed e.dvertildng
plllns lind rtpeC's lor bioo
Monito1' parking Throughout
of construction constJ:uct ion .'., " I.
vehicles and period
wor!ters
rru;'m;pot'ttt~ pdor to
laoguage into advertiaing
project for bidB
apecificaticms
Review Aor) Prior to
approve R~CP sLObmil t~c.i ESCP
to City
Within one
week r)f
yullmi.ttaJ
Assure ssel' Throughout
implemented construction
correctly period
\
',,-~/
I, •.
. ,
"
" .. _::I,:r~':~ii-·'·
" " ''' .. ' i
,
!
,
Mitigatipn MoO'4rplCgnditign
7, The SCYWO ehall require th~ contractor to imple~ent
the following (theBe mea.urea ahall be incorporated
into the project pb,ne and. spedt'icatlol'1R 1lrli.1 shall be
Bubmitted to the City of Palo Alto Public Wol'ks
Engineering Diviaton for ~evle. and approval} I ..
b.
In order to reduce dUlt l~velB during
conatructton. exposed earth surfaces shall b~
watered frequently, with rnclairned water, durlng
tilt'J late morning and at the end of the day. with
tx"equency of .... terlng inCrAoel1\9 all windy days.
Spillage l:"eBulting from hauling operations aloog
or across any public or private property shall
be removed iMmediatoly at the expense ot the
contractor. OUdt nUiAanC~B originating from the
construction operations shall be cont.rolled al
the contractor's expense. The SCVWO project.
inspect.or ~nd the City at Palo Alto Public Nock~
rleplIrtmenr. aha.!l IftOnltor the con.tn,ctor'.s dust
control aperat.ions.
The contractor ahall comply with the
re:quirements of the Palo Alto Noiee Ordilldtlce.
Conatruction work shall not he r!onducted 'In
Sundays or hol.1dayo and ahall he lim! t.ed to l'.he
t'ollovil\9 houn I
Stage A & 91 Mond8y~'rld8YI 9100am/SIJOpm
Stag~ CI Mondlly-pridaYI Q[OOl!lm/6100~
Stage D: Monday-'ri~ayl 8,OOam/8tOOpm
Saturday I 9rOOam/DIOOpm
c. MuftlftrQ anCl, housing shall be provided on
con.tru~tion vehicles and equipment.
d. Overfilling of trucks by the contractor ehall be
prohibited.
e. Any .pill" on City streets sh~ll be cleaned up
i~ediately by the contractor.
f., While it la being used a8 ", Conutruction accees
roote, Matadero Avenue shelll bEt awept with a
mechanical gW~eper at the end of a~ch wor~ln9
d'e1Y.
_!dlbrcer,d.p"'''
Bosgpn,ib Irr.plemnUity far
SCVWD ntotJ..Qn :'\.
Public Works
Sngineering
SCVND tJl.8pectot"
and Public Worlts
Inspector
ActiMtObe
IAlwl
InCOyP~rate
l.anguage into
project pla.ns
ond
specif1catlonfJ
~ov;t,~", eod
approve projl$('t
plans /!lind
specifications
Assure project
plana and
s"edficat.iona
.lire implsmented
corr~ctly
Ill9ll..I2.aa
for CpupletioD
Prior to
adv@rt.iRing
far bids
Prior to
advertisillq
fnr bids -
ThrO\\ghout
construction
period
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Mitigation Mo"yre/Cgm1itipil
8. Thn SCVWD _hall illcorpor"te language into the project
Bpedficationa r&quiring the contractor to prepar~ a
Stormwoter Pollution Prevention Plan (SWPPP)
incorporoting best management practices IBMP's) tor
8tormw~ter pollution prev~ntion in all conatruction
operotj.one, in conformance with the Santa Clara Valley
Nonpoint 90Ul'ce pollution Control Program and. Stllt41 of
California Water Reaources Control Board. Th~Be
measures shall be included In the project
specifications. The swppp eh~ll be Bubmitted for
review Bnd approval (within one week of receipt) by
the City of Palo Alto public "o~ks Engineertng
Division. Prior to submittal to the City, the gwPPP
ahall be rBviewed and approV&d by th~ SCVWD. The
SCVlm shall cOl'4IPly wIth ,!Ill provhionR of tht! State of
Callfornis's General permit for discharge of
6to'('mwater &sBochted with conlltruction actlvitieA and.
shall pr:ovlde tl ooPY of t.he Notice of Intent INOl} to
the City of City of Palo Alto Public ~orks Department.
_1_al b leN,,,,1II
to be acUgn glbility (Qx ~U ':V:antAtioo
SCVlID
Public NO'1:"kH
Engin~eril1g
SCVHD Inspector
and Pub11{: Workll
lnsp~ctor
lnCorporat.e
language Into
projoct
sp&cifications
Reviflw lind
apprl)ve gw{,I>(>
Review lind
approve SWPPP
All sure swPPl' ie
im?~elllatl.tad
C:Clrrec:tly
IArqCt p"t~
for CompletiQn
Prior Lo
Ildvertisi .... ~
for bids
Priot· t.o
submitting
SWPPP to City
Within one
week of
Bubmittttol
Throughout
construction
period
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MitiswtioD Mltn.uro/CQrulitlgO
9, The followtng me~8ur.8 ,h~ll be incorporated into D
det.iled pll!l.nUIIg' Ilrid irrigeUoQ phn which shall be
submitted to the City of Palo Alto Planning Division
for review and approval. Minor modification. to the
plan may b~ made during installation, subject to the
Planning Division'. approval.
e, ~11 existing trees which are re~ed ~h.ll be
replaced with new native treeD on II 311
replacement ratio for tl:ees over .lx inches in
diameter. and on a 111 re~lacement ratio tor
tr~ea under .ix inehe_ in diameter. The new
tr~ea shall be five gallon con~oiner stock and
ahe.ll btl planted 1n the vicinity ot the orIginal
troe. unless th~ city Arborist determines that
an alternsthe loea-tiotl 18 appropriate.
b. Plan Shel!!t SI Rhall be reviRed to include baUlss
and a low-flau channel invert 0r grouted rock in
the stream channel to prevent creating ft
v~loc!ty b~rrier to flab mlq~ation.
c. plan sheet TA-8 shall be rBvioed to abow
~eplaesment plantings around th~ entire
p~rimfttl!!r ol the lower R~diment baRtn (i.e .•
Routhern portion of the balli,n) .
d. Plan Sheet TA-9 ahall be revtd@d to include
h9rbaC601l9 plante {o.g., pluga of native
grft98~sl in the openings of ~he gab ions (midbonk
to upp~lI:bao.k.J .long the propolled confluent
structure. The I>lanning bhhion, ir,
(!onllull".fttion with I'!l habitat rent.oration
8pl!cillliS~. shllll develop .. herbaceous plant mix
to be included in the final design.
e. plan 5h~et 'L-] .hall be revieed to conti~ue
hydroeeedil\9 southwal.·" to the eo" of the ptoject
~rea in th~ vicinity ot Gunn High Schnol (i,ft"
cu~rently, the propoaed ~rnjthern limit of
hydroseeding 18 at JIIlellt&dero Creelr.) ,
f, The hydroseed mix shell consist of natlve
.ildflo_er and native grass specie. ond ~hall b~
subject tCl review and jIlpproval by t.he City of
palo ~lto Plftnnlng Oivinion. in consultation
with a revege~ation apeci"li&t. It iu
recOmm8nded thatl
_ladllblcand.prpII
Re'ponsibl1ity t ~~moDtOtiQQ QX
PI.oning Division
Actioo tp be
LWw
Submit t'8vlsed
planting anci
irrigation
plan.
Rl!view and
approve reviJ,ed
plana
Target Dote
Cpr Cqmplct-ien
Prior to
4dv ert18io9
for bid.
Prior to
ad"ettiG-ing
fet" bids
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Mitigatign MeA,uro/Qpnditign
the ~eoding rates per ac~e ahould be
incro'G~d 88 folloW81 purple etipa -
from 1 LB. to Ii LBe ~ b.Lue rye _. -trom 4
Ln., to 5 Lbe" ~nd
the number ot proposed species .houl<t be
incre~8ed (potsQtial additions include
California br~ at 5 Ubs. per acre, and
sticky monkeyflower at l Lbs. per Bcre).
\1. On plan Sl,eet TA-8. the following ept'cies dhall
be added to tho shrub layert California
blackberry, wild ramo, blu~ elderberry. and r~d
flowering CUrl"Ont.
h. On Plan Shl!lll"lt TA-9, tbs proposed white alder
trees ehBll be ch~nged to OAks, (c0$8t live or
valley oak) or sycamore treOR.
t. On .lan Sheet TA-9, the following species ahall
be edded to the 8hrub layer I wild r08~.
Ce.lHornia hellel and red llowedng current.'
j. On Plan Sh~~t TA~9. &t lease h~lf of the
replacement willow& llbell be yellow w1110w.
_1 __ llncand.prlll
BoMpgneibility...t.o.c
bpl,mptotip"
SCV>ID
Pl~nning Division
I\s;~~
I4Wl
Submit revirJed
plltnl :lng and
irrigstion
plane
Review and
approv8 revised
plana
Torget. gate
fur Complet.i..!;w
Prior to
advertising
for bldg
Prior to
d(.1VertiBing
[or bids
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Mitigotlpn Mft··uro/Cgn~
10. The &evwo shall ~~qulre the contractor to implement
the foll('l1fing {these measures ehlll1 be incorporated
into the project plan. and Apeci!ic~tion8 and shall be
Bubmittec:l to the City of Palo Alto Planning Division
for review and approval) I
a, If ony existing shrubs are removed dur1ng
construction which aloe not dl!!signated for
removal on the planB, they shall be replaced by
tha contractor with ruadily available native
ahrubR on a lit retio. The new shruba ahell be
n&tiv~ species ond one gallon in ~iBe and
pll!lnted in. the vic.lnity of. the! original shrub,
unleo9 the SCVWD, in consultation with the City
ArboriBt, dl!tennin8S thllt an alter-ol.llciv8
location i& appropriate.
b. The following requirements shall ~pply to the
tree. to be t.ranmplantec11
only tr"C!fj in vigorQua health Bnd betwe,m
t;he GhAG ('If' 4-10 inches tn d.la1ll6t-f1r may
be transplant.ed,
.~t.ering b~8inB shall bft large enough to
encompass the dripline of. the tree
1ge.ter811y 36 inches in diameter) J
e. revegetation 9pechlht 01-t:!ertified
arboriat shall superviae all tr~e -slilive.ge
and replanting activitieeJ
during the three yeAr maintenance period,
the contractor shall be :['I,spon&ible for
watering, pruning, and treating the trees
for pest or disellse prohlem"t
if sny transplanted trees die within th~
th:cee yeBl' maintenance period. they shall
be repl~c@d Ilt Il 311 ratio wit.h n~w nati.ve
trHe opecies in the Vicinity of the
tranapllmted tree. The nev trees shall be
five gallon container stoc~ and planted in
the vicinity of the original t:cee. unless
the SCVWD, in coni4ult~tion with the City
ATborint, detElllninef( that. an ait.ernat.\ve
lOClltion in needed.
all replacement plantings ahall be nativB
epeciet:l.
lie IlIICIlbICilnd.pr'1I'I
~Y...!Qx Action to.Jn\
Impbsphdon ~
SCVWD
SCVWO Inspector,
City Axborlst Hod
Planning Division
Incorporate
langu,,-ge: intO
prajel:!t. plant.1I
.nd
specifications
Moure meeBuree
are implemented
correr.'tly
Target pate
for ('omPlet ion
Priar l0
a.cilfflrti8ing
for b.i.~8
Throughout
conot ruct ior.
~riod
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Mitiaation MeAsyre/CPnditign
c. The planting holes for ne~ tre~S and ~hrtmB
shall b0 excavated to bu twiC3 the AiBe of the
root ball of the plant. Slow-release fertilizer
shall be placed in the bottom of each planting
hole. The holes shall be bftck-!!lled with
native 0011 troll' the project araa. A layer Of
C08raf!' mulch nhall be phced arolHld the haoe ot
the plants to conat!!rvf'J moiBttlT'P &nd control
weedl!.
d.
e.
t.
Watering baeimJ around Jlew and transplanted
pl.:'\Ol8 ahall extend far enough to enccmpaae. the
driplin~ of the canopy ot th~ tree or shrub. If
the ground 11'1 doping. 8 4··in.Ch high. haod
compacte~ earth berm shall be conl'ltru~ted along
the forward edge ot the p13nting terrace, If
the ground is level, a 4-inch high. hand
compactl!~ earth bet:m 36 inches in diameter shall
be oonllIeructed around the plant hole,
Trees to be ~etalned which arfl located within or
adjacent to the £one of diAturbanc~ ahall be
prot.,cted throughout the construction phase l¥
the tollDwing meaAureal
Tp.mpo.')rllry pll!ll'lCit:! conJurllCt'-ion fttncing
that ia ~eeured with metftl T-PORtR ahall
hn inatal1eeJ around the trltes to tie
retained. 'rbl!! tencing shl1ll be six feet
in height and Installod at the tree's
dripline. rn caaes where conl'ltructton
.sceess is requir~d. thl!' tElnc1ng may be
placed closer to the trunk. 'l11t1 ~]lIctiment
bnd adequacy ot the prot~ctive fencing
_hall ~e periodically fnapecced by tha
Cjty's Arborist and the SCVWD inapector.
Where conatruction IIccess j.B required
under the driplintl of l:L-eea to btl
retoined. a gravtel CllOhi0l1 of 6 l.n~hea 1n
dl!!pLh shall b@ provided,
Por trees with branche~ or roots which overhang
into the construction zone, lower branches and
exposed roots shall be ,'runf!d to provide
clearance for the movement and operation of
construction equipment. Pruning ~hr:ll condst
of clp.an cuts by 11 qu&.lifled tree surgeon
possessing a C-27 Lanc1"c&pe ContractO:L"' II
Licanl'le. All pruning shall be Gubject to review
and approval by the City ArboriBt .
.c!dl!tICW.prlll
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RQBpo08ibility fpr
IlIIDlement..!J.tion
SCVlfI)
Planning Divilfit)o
Action to be = Submit reviselS
pla.nting and
irrigation
plans
Review and
approve revised
plftna
"'~'l':r,,,, .... -,,,
IAIln<LJllllJo
.lor Comnlction
Prior to
advertisi.ng
for bids
rriar to
t\dVBf"thing
for bltja
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Mit igas; ion Mouun/Cogdit ~ em
g. A revegetAtion maintenance program for
maintaining the installod container atock eknd
transplanted treos shall be aub~itted for reviow
and approval by tb~ City Arboriat. The
maintenan~e program shall be tor three years
following completion of the project and shall
include provisions tor the follo~ingl
Maintenance of watering hal'lin •• weed control,
irrigation, pruning and thinning. plant
pl:;'ote~tion. Dupplemontal planting, and debl'1.s
removal.
h. During the three year maintenance period. the
frequency and duration of irrigation ahall be
monito~ftd by a revagetation specialist/arboriBt.
IrrIgation equipment shall be inapected.
~6paired, and replaced &6 r$quired to en.ure
i.
proper operation a~d adequate plant gro.th.
Plants that do not survivB during the: three yf'lllr
maintenllnce pe~iod shall be replanted under the
supervision of thll Sevwt>'" InspectoL'. The
following survival rates ShAll he requirfldl 90'
aurviv~l ~ate of new trees and shrubs. lOOt
survival rate for tr~naplanted trees, and 60\
survival rate for herba<::eous covl"lr. tf at any
time. the percent aurvJval falls below lhe
remedial rate. plonlings will be nec8sBary.
_l*IIlb lcon:t. pr ..
Rwf~li"'y lQr
l~
SCVlII)
SCVWD Inspector,
City Arborlst and
Planning D1.vidon
~n to bt
Incorporatl!
languog8 into
project pltHlts
,)nd opecl'l
Assure ml!88'JreS
arB ilRplementfl'd
correctly
Target Dgte
for C'omcletioo
Prior to
advert ising
tot" bid,.
Throughout
conatruc>::ion
period
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Mitiaation Hea·urc/Cpgdition
11, The SCVWD lJile.ll req\Jlre the COnt'rftr.tor to implement
the following (these lna.suus .hall bn incorporated
into the project pl~nB ~nd specificationa and shall be
l!Iubmitted to t;he City ot Palo Alto Plonning Division
for review end approval) I
a. Bach of the extrection we~l let~r81B ahall be
tied to ft buried support (e.g .• uteel I-beama)
spanning the width of the bok culver~
8xcavation. The SCVWO" (!ontTbct;or shall
eXCllvate below the structurally flupporr..,,,
pipelineB while the hterala remain in .ervice.
The support will .110 provide a measure of
phySIcal prot~ct!on to the expoHed pipelines.
h. Wells BPO-t6A/46a .hd BP-62A will bo shut down
prior to the .excavation of their respective
laterals, This disruption shall ladt. no more
than one week at eacn locfttion in order: to
minimlz8 the amount of e:a:trftct.,~d groundwatat'
that OQuld be released in the ~vent of pipeline
damage, Well ~eration8 will resume once the
excavation fOr the box culvert. is crnnplete6.
c.
d,
o.
The lat.erftl and its supporting structure at Well
B~-58 ahall be remove~ while the SCVWV',
contractor pours concrete for the roof ~f the
box culvort. Disruption of groundwater
extraction at that well shall last no longer
than one month. the lateral shall be r~placed
onc" the box colvert concrete 1S cured.
During construction of thfl plieute V project., all
Vftl1a within the project are~ ahall be piling,
installation of t~~!!la bollerds. utility boxeo,
and heavy gl~e(ll trench plate. 'rh~ actuilll
techniquea ueed to pt:'ot8Ct the wells during
construction ahall be approved by the Cal!tornin
Department of Toxic Sub8tances Control prior to
the cOlflnencement of work on the Phase V project_.
Air monitoring for worker'g health and safety
_hall be conducted by the SCVWD'~ contractor in
accordance "ith the: c~ntractor'H Itealth and
Safety pleo for the: project. Thr project Health
and Safety plan shall be revh,;ed and approved
by a Cert,iflcd Industrial Hygienist retained by
the C'Oi'\tractor. If prll"!exhting
*!_altuaar.d,,.. ..
Rc'pgDSlbility for
lmuleUDtatloo
SCVWD
Pl~1ng Division
California
Department of
Toxic Subat_nceR
Control
SCVND'e Contractor
SCVWD Inspector
and Publ ie Marko
Inspector
Actioo to be
L1lWI
Incorporate
language int.o
projl"lct plans
and
IJpacif iCoI!I.tions
Review and
approve project
plana and
apaclficl.lt.i.onB
Review and
approve
teChniques to
protect wells
during
cOrll~tt'\lction
Submit Health
Safety Plsn t.o
certified
Industrial
Hygienist
Pravlde
protective
equipment
RevieW" and
approve
contrllctors
JielJlth Ilrid
Safety Plan
""eui'e r,1eaBureo
are implemented
C'orrectly
Tlmu;\" Pns..s:.
fO' CqmpletioG
P:';!Ol.' tu
advf'lrtising
for hids
Prior to
lld.vorlising
for h1da
Prior to
commencement
of
construction
Throughout.
canst ruct ion
period
Priot" to
completion uf
construction
Throughout
eonstruction
period
PriQr to
completion of
constructi.on
ThrOlJghOlJt
construction
period
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MitigAtign HoAluro/QpndltinD
f.
g.
cont8minption i~ enr.ountered during
construction, the contra~tor shall immediately
suspend all oper8tiontl and. potity the SCVWD.
City of P~lo Alto Public "O~kH Deportmont and
Csliforni~ Department of Toxic Substances
Control.
Should p~eviouRly undetected aol1 ~ontaminatlon
be encountered during construction, the Yealth
and Sefety plan prepared for the site (which
shall be reviewed and approved by 5 CertifiAd
lndust.rillli Hygielni9t) ah&ll be amended to
addrp.ss the Bpecific potential Oalards to
workers and soy other, who will be involved. in
the construction that could. reault !rQO\ ejtpo4ure
to th& detec:ted C'ont.amiDe-Dt(S).
The SCVNn's contractor shall provide t.he
neCel18dry personal protectivl!! equipment fo,[, the:
workers du~in9 project construction. Porsonal
protecttv$ equipment shall be in accordance with
thu requ.1.reftlents 0(; the project Health om1
safety PhD, Thl"l HfO&.1tta and Sot'fllty Pleo ohall be
reviewl"ld and approved by the contractor'a
C~rtified Industrial Hygienist.
_lldlblCGnll,prllll
Respoogibility..tQ.t
=~tl2n
SCVWD
Planning DiviBion
California
De{lortment of
Toxic SUbAtanc~s
Contrnl
SCVWO'o Contractor
SCVWD InBpector
IIlnd Public Hork"
Inspector
Action tg be
:rU&n
InCO:cpO"t'ftte
language into
proj@ct plano
lIInd specR
ReviAW and
appro·te project
platu} tlI1.d
npecificationlJ
Review and
a.pprove
teChniques to
protect "ella
duriT'lg
(!onatI\.icttoI1.
Submit Health
Sa1ety Plan to
certiiied
Induutrial
tIY9iel'~flt
Provide
protectill'e
equipment
Pev!.ev and
approve
c()ntracr;ora
H~lllth and
Safety Plan
Anoure maslilures
are impler,lfmted
correctly
]'ug@t pate
for compietiQn
PriQr to
advertising
for bids
Prio;( to
e.dverthing
fOr bidH
Prior to
commencement
of
CoOatTuction
Prior to
completion of
conetructlon
'rhrougbout
conetructioT)
period
Prior to
completion of
cQmltruction
Throughout
construction
period
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Mitigo,ion Mal.yre!ConQitiap
12. Thft SCVND shall require thft contractor to implement
the following (these me •• urea shall be incorporote~
into tbs project plane and 8p~clfi¢ation8 and Bhall be
euoo.itted to the City of Palo Alto Public "orks
Engineering Division and Tran8po~tatlon DlvieiOn for
rovie. and approval) I
~. Upon complation of the flood control
improvements within Stag~s A ~nd 9, restoration
ot Ute bicycle path tIInd rev~get&tlon within
thesf!! iU·OIlB ahall be commenced inrnedist'.ely,
Stage A sholl be reiDned to the public .a Roon
IS the bicycle path.8 completed and accepted by
the SCVWO ond the City (revogetation work may
continue atter the path is reopened). Stage B
shall be r8openl'!ld to the public as soon as the
bicycle path and revegetation work are complete~
and acc!!IpUd by the SCVtID end the City. Tile
remaining stages of the rn~ject ahall be
reopened to the public illS soon as the area is
complete~ and accepte~ by the swevwo for flood
control purposes an~ tbe City ror public use
PUrpOlUUl,
b.
c.
St.nda~d construction area signs, subje~t to
reviow $nd approval of thB City of ~Alo Alto
Trftnsportation Division, shall be posted. along
Matadel'o Avenue I Miranda anl1 other 8treets. a8
necessary. to warn tht public or the ongoing
construction trat!ic,
No contractor workHr parking anall be permitted
on City streets. The City -till limit on-street
p~rkin9 on Matadero Ave~ue during co~'tructloo
hOUt's &8 needed for tra_Hie safet.y rfUJ.8ona.
(I. NO .tor~ge Of equipment or materiBla ahall be
permitted on City .treate.
e, Smergancy vehicle access an~ access to all
residences along Matadero Avenue and other
streets affected by the project shall be
maintHined at all times.
_ldlbll:and.prtII
RO'P90dibjlity for
Implom;gt,tigp
SCVWD
Public Narks
Bngineering end
TUlOsportation
Divisions
sevwn Inspector
and Public WorkR
Inspector
Actign to be =
Incurporl\ta
language int.o
project plane:
and
Rpocificationa
Renew aM
approve project
planE' and
epecificettion8
.\ssurf' project
planl'l and
specificat ion
are impl@mAnted
correctly
l'arget pate
~rm.1J:.t..lQn
prioe to
advl'!rtil'Jing
for bids
Prior to
advertioing
for bids
Throughout
canst ruct ion
perlod
; ,
\.
.. .1 , " . -'~/~
",' ';-,
"
1
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j ,
MitigatiQD ",Iayrg/Cgnditign
13. The SCYWD Rhe~l require lhe contractor to implement
the tallow log regar~ing tbe pr~~~d MatBdero Avenue
construction access for Stages A and B (theae ~a.u~e_
~hall be incorporAtp.d into t.he project plana and
apecif.icationg and shell be lubmitted to the City of
Palo Alto Public Works tngineering Division tor re.iew
and approval), ., Uae ot Hatadero Avenue ehall be limited to 8
period not to exceed elx consecutive calendar
monthR.
b. ORe nf Metadero Avenue shall be limited to the
nau~. of 9.30 a~ to 5,30 pm, Month through
Friday (excluding holidays, .
c,
d,
C('I1'tstruction trartic ahall he limited to trucks
with no more thAn five axles.
Use of Mat.dara Avenue ahall be limited to
trucks carrying up to 10,000 cy of e1l;:cavated
materials trom Stages A ~ B traveling e8~tbound
from thll"l construction eite to Et Camino Real.
No other conatruccton related traffic shall be
permitted to use Matadero Av~nue ae A
construction ac("ess route,-
e, COI'lstl'Uction trat'fic on Matade:ro Avenue ahsll be
.ubject to a 20 mph construction gone speed
limit. PineA of $50 per violation 1I11S11 be
asses lied by Oi.trict for any documented
vlolation of the 20 mph construction zone speed
limit by construction trucks on Mntadero,·
f, A full-time Il~9ger ahall be stationed at
l'IattldeJ::'o AVenue "h!ln~ it crOSS8e the
construction sit~ to control traffic. A fls9ger
shall also be atationed .t the intersection of
Matadero AVl'!lnue/Jotiine. IWen\J.~ b"tween 1130 pm to
3130 pm on school daYIJ to "lJsiat school childr:tm
in ero.fling Mataclero /t.venue.
Th~ flaggerR provided on Matadero at
Tippawingo/JoBina ~nd at ~8guna Bhell be state
certilied, and comply w~th C~ltr.n8 standard.
for control ot' trat't'lc t.hrough wo!;'k Bones .. "
~eHcribed in the Caltrsns Traffic M~nual
(Chapter 5-07). It flagger ie not performing
his duties to thB satisfaction of the City of
Palo Alto Police D~partment, the contractor
_llICIlb'll:and.~ ..
ResPOouibflity for
~
SCVlm
Public Worke
Engineering &nd
Tranaport&tion
Divisions
SCVWD InApect~r
and Public Worko
Innpoctor
Action to he: =
Inl"!orporate
hnguBge into
project plaJls
and
specifications
Revietll and
approve projt"ct
plans ond
Bp$c1fl~QtionB
ASl'lure project:
plans &n.d
8pe~ificat~onB
ore implement~a
correctly
Target P"'li
for ComQlet ion
Peior to
advertising
for bids
Prior to
advertising
tor bide
ThroughQut
construct ion
pedod
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h," Rtn'pl '<nil (,11'I_""nl!,,' tl" ,~"d1d'-lU, If '{l,y,
'"?l\l"lf'd by '-ill' '"'-'1-,~ril,·tr'r'fl ":'1'1:1\ \'111'\ 'l'tll'
::r'VWI' ~lIHl: I'p "'~!';"iHil)l,' '", i"'I'"rillll''-l ,dl
"cn-)-(',"f1V" IT,,''-''':', 1 1";, il"'!'j;],n'i • ',-,;>f' r!liil!I"~
l'f'pair, RlH-t,'F'r-rrr'iiU"Il[,T -01 ,'1'1I1ta.--ifl'-l.
r'~'l\Jirf'd r_u ]'{-!:I('IP till' tldlfi,' l"i1r.lin.! ".ljiiV'it¥
,'l!ld All,i'-l,"(, r''-'rHjit ", [)f M'I\F(cj[,]". !IVPlIlIP ',' irR
I-IIP-prlFjP'-' '·"Ilditl'lll.·
All worlo.. witi!in '~t1f:' I'llb1_i'-ri'J!ll -f,r-...,,,y l{) 1)/·
millnl'.-llnf'd 11'/ Ih,' ;'lty (L'it-_y lI~-lJlI-y
rf'lnr:at:.1rJflfi, hlCYC}P path JHI!H'UY"!'If'lltH,
lilr;d~cclr)jng, f"tc,) f\hi'lll IJf' ~l.jb-If~(-L cO
in!Olp~.cti[;m ill1d dFproval by th,~ ('ilulL-.' wurktl
InSpel.'tol ",neVc'l' Ulilitif'R Of'piil'lmf'nf_
inspectors _ 'fll,,, SCVWD J s c,)ntrilctror Ahall obt.f\.tn
a strept. npeniW1 perrnit fn'm tho:' City of Palo
Alto Pub) ic WOl-kg Enginf'f'r:l_llq DiviHion (I'he f.er!
will bs waived), Th~ ,sC'VW[)'u f-,(Illtractor ~hllli
also nilme th~ Cicy f)f P(llo Alto as an additional
inBured on th~ir lJability inB1JranC~ policy,
1IIC11IIC8lbccond.prm
i<.(' .. 'j [J.'.'[llljjL •.. t i. 1 'i' _ ~ <.!1."
; '1,i.J,,~H~.!!1!l.\.;..L'..!I.1
':'-'/'ri["'
Plll:t i,' W(H-il.f:l
E!Hli np!'I-i.IHI
E;,'V'II;) i n,:lI"H'Lc'I
"'HI f"lblil' Wo!-ks
IllIii'f'l'l ere
l.M~~
LlKen
In~~{)l·p{)1."d t~
laflquageo into
pcojpcr plans
dnd
sp",cif i'~at ions
R'_,view and
ilI.!prove proj""ct
{Jianf'! and
specifications
Al-I~ure prLlje~t
plims and
l'Ip~cification
are lmplemented
correctly
Targot Qat~
12L'=J&tiJ<u
pdQ~ to
advertising
for 'hids
Prior to
advertising
for bids
'l't'lrolighour.
c:onatruction
peciod
I
iA~tJ~~~~~-;~~'. i,~:A;~/ $"ll;,,";
, '.-;, ','
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Hitig.tfpD M.g.ure/CQaditlon
15. Depending 0n the result.' of hydraulic studie., the
BCVWD _hall consider installing security mea'ursa to
prevent children and wUdlife from entering the
undergr~ boJt cul~rt. To 1n.ur~ that the .a:curity
meaBur~_ ~~. no~ I barrier to f1sh, the dceign of the
.ecurity me81ure8 Ihall be .object to review by a
biologist.
16.
17.
Prior to con.tntr.tion. ttJe SCVWO dhall provide the
City with video documen~ation of 611 e~lBtlng
vegetation with the project area,
The SCVWD ,hall C'om:inue impHmenting a public
outreach \,rogn.1lI to keep ~t'6a resident. lJpda.ted on the
construct on 8cherSull!l and the u.e of ~",tl!lodflro A'VAnue
as a construction access route.
_I.alblillard.", ..
RGioontibiHty tor
ImplflfD1Ultpt$pn
SCVIIl)
Planning UiviGian
BCVWD Inapector
e.nd {Jubl1c worka
InIJpoctor
SCVIfIl
SCVMD
Action to he
IAUn
Study
hydrological
and I.Jlological
impact a of
Bf!cu:.:-ity
Inf!llflUL"~1J lInd
revise plana
i!lcconHngly
Rftview and
approve revised
phl1S
"sPiure that
sf!curit.y
melU!lures are
installed
Subl1\lt video
oocum&T\tllot.10f'l
t.o Planning
Divia.i.cm
Cont.inue
o\ltre~ch
program
l"A,[got pato
fJ;a: CQlIQlct\Qn
Pri(lr to
I!IIdverr:hing
for bldR
Prior to
&dverthing
for bide
Upon
completion of
projt'ct
Pr-ior to
cOtt'4t'!enC'e1llent
~f
C'ooscrtlct.iol'l.
Throughout
~'OI18t I'IJ~-t ion
period ... ,
.j ,
t,\
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", ': .~~~:~,
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'.
Mitiaation MCllllurolCondition
leo The S~ and the contractor Ah~11 co~ply with the
~equirements of Appendix X of th@ Guid~ltnee to the
Ce1Hornia atlvi~(m1'Q&ntd Quality Act, including the
following (the&& meaBures .hall be incorporate~ into
the project pl.n~ and ~~eciticatlon8 and shalA be
Bubct\!tted t~ tho City ot Polo Alto Phnning Division
for review and approval prior to ad."ertlBing the
proj~~t for bids),
19.
a. U;.DJI utl.earthing-any archaBoloyical ~rtifl!lct:R Or
8 budal Bite 8a e-videtlced by human skeletal
rem~ins, work aha}} be suspended and the peraon
ma~ing such ~i8CC~~ry ohall immediately notify
the SCVND, City of Palo Alto Planning Department
and the project ~rcheologiat.
b. If a bUl:h,1 site ill unBftrehed, the County
Coroner shall be notified immedintely. If the
County Coroner determineo thot the remainll ar~
Nativd ,Amt,rican. the Coroner will ( . .'ontaet the
California Native American Heritage Commi8sion
and the County Coordinator t:Jf Indian Atfairs.
No further disturbance ot the sHe may be made
except ao author1.ed by the county Coordinator
of Indian Atfaire.
During the three year maintenance period, monitoring
ahall be conduoted by the SCVwo in conjunction with a
landscape architect and hllobitat rellltortltiorl
specialist. Th~ monitoring ahall includc
reconnaia.ance-level surveys, quftntitative sampling,
photcdoc.'Om~ntation. and annual It'Ioni taring reports that
docum~nt the re.ulte of the monitoring. maintenance.
anc1 revegetation JI!Ictivitie.. The annlJ&l J:'epot't:& shall
recommend remedial aceione to b~ undertaken if th~
project i8 not meeting performanc@ criteritt. Tne
r@port8 ahall be oubmitted for review and approval to
the City of Palo Alto Planning nivision.
.c1MC8lb1conci.pr ...
B@4pgDftibility for
Implof!!l:Dtptlon
SCVWll
Planning DiviBion
SCVWD. Planning
[Jivhion and
Project
Arch@ologiet
sCVl<D
Planning Diviaion
Actioo to be
ThUD
Incorporate
language intI)
project.; pIf\n8
and
spc:tcif1.cllItions
A.evtev ~nd
approve pr~ject
plane and
specificat ions
Assure I'roj ect
plans and
specifications
~:(''= implemented
correctly
Pr9pare annuft 1
:t'eporte
Review ",nd
approve aOIlua.l
repons
Target: pat.i!_
l.QJ: ('Qmplec ion
['rior to
advertising
for bids
'rio'(' to
adverti&ing
for hide .
Throu9 hout
const ruct ion
period
Thr@~ YE.-1UB
following
inst",llacion
of lanrtscilping
Three yeaI"tl
following
installation
and
landscaping
,
I
I
.,
,
\ .... ; .
, .
. ',;r;-.':'f.'.',~ '~;I',' :·~';~jt:.~':-:i
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Mitig'tign MA •• ura/Qpp4 1 tlQQ
20. Long-term 1'IIOnitorlng (I.e .• from four to 15 y."ra:
after. planting). ,hall be conductl!!d by the City of
Palo Alto. Long-term pl!lrformance criteria .hall be
catabUshed by the City Arborht dnd ehall flddress the
rollowlngl average tree height (by speciea), percent
canopy cover treea, per~ent canopy cover .hruba.
percent of invA.ive non-native plant epecies. ftnd
hablt.t value in term~ at wildlife uea, Long-terM
.onltorlng _hall be conducted at three-~ar interval.
by e qualified habitat rnetoration .peddist. 1'he
re.ult. of r8conne188ance-lev~1 (it applicable) .hall
be in~luded in monltorinq reports,
_I ~ I blCOfId.fH'III
RaSpgn.lhillty for
Iwlgme DtO Ugn
City Arbori~t and
Planning DiViSion
Actipn to bO
nIwl
Bete.blieh
performa.nce
criteria I!I.nd
pr@pl!I;rf!! l"Aports
evexy three
ytUIC8
l'orget Date
for CoJDp1UiQn
Pour to 15
yeftro
following
illstnlhtion
of laooecAping
", :, ,
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OPIlTNANCE NO.
ORDINANCE OF THE COONClL OF TIlE crTY OF PALO ALTO
APPROVING AND ADOPTING A PLAN FOR IMPROVEMENTS ":0
BOL PARK
WHEREAS I Article VIII of the Charter of the City of Palo
Alto and Section 22.08.005 of the Palo Alto Municipal Code require
that before any substantial DJilding, cons~ructi~D, reconstruction
or development is cQmmeoc~d or approved I upon or with respect to
any land held by the City for park p .... rposes.. the Council shall
first cause to De prepared and by ordinance approve and adopt a
plan therefor; and
WHBRBAS. "Sol Park is a dedicated City park; and
WRDRPS.. the San.ta Clara Valley Water District.. has·
requested. tbe City to al.low it to construct certain improvements to
801 Park.. in connection with its Pbase V improvements to Matadero
Creek.. as shown on those certain plans entitled ".Map and
con.se.ruction Plan for Mstadero Creek -Phase V: Stanford Channel
Confluence to Barron Park Sedime.nt .Basin -Santa. Clara Valley Water
District-(the -Plan-), approved by the Architectural Review Board
on February 3, 1994; and
WHEREAS, the Plati. haa been reviewed and reccmnenrled for
approval by the Archi tectural Review Board and the Planning
CcmaissiOll in confoxmance with CJ::J.apter 18.82 of the Palo Alto
Municipal Code (Site and Design Review), and the Planning
CarmisElion :t~e found the project to :be in conforma.nce with the Palo
Alto Comprehensive Plan; and
WHEREAS, the Council desires ~o approve the Plan and to
adopt it as the official plan for the construction of improvements
to Bel Park.
NOW, Tl!ERBFORB. tile Council of the City of Palo Alto doe ..
ORDAIN as follows:
~,. 'I'he Plan, a copy of which is on file in the
office of the Planning Division. and to which copy reference is
hereby made concerning the full particulars thereof, is hereby
approved and adopted.
SECTION 2 4 The Ci ty Council hereby finds tba t this proj e ct
viII have DO significant adv~rse effect on the environment.
1
---,--
SEH'ION 3.
commencement of the
INTRODUCED :
PASSIID:
AY1IS:
NOBS:
ABSBNT:
ABS'l'BNTIONS:
ATTBST:
City Clerk
Al'PROVlID AS TO FORM:
This ordinance shall become effective upon the
thirty-first day afte~ t~e day of its adoptio~.
APPROVED:
Mayor
City Manager
Senior Asst. city A'ttorney
_ ... ...,.
Director o~ Pub~ic Works
Director of Planning and
Cocmun..ity Enviro~t
RESOLCJ'1'rON NO.
RESOLUTION OF THE COUNCIL OF rilE CITY OF PALO ALTO
APPROVING A GRANT OF EASEMENT BENEFIT'l'ING THE
SANTA CLARA VALLEY WATER DISTUCT
WHXRBAS, the Santa Clara valley Water District '-District-)
is undertaking flood control work on Matadero and Barron Creeks in
the vicinity .of the Barron Park neighborhood, and a new undergro--.md
bypass c:ha.nnel is being proposed on a part of the City of. Palo
Alto's propert.y in 801 Park; and
WHBR.SAS.. the District wishes to obtain an easement for
water management, etor.m drainage, and flood control purposes and
the right to install, operate, mai::ltain, and repair associated
underground improvements at the referenced locAtion;
NOW, 'I'HERBPORB, the Council o! the City of Palo Alto does
hereby RESOLVE aB follows:
~~~~~~~~iCOUDCi1 has considered and her~~ approves ti.>!~."'!9ratI for the project ilO4 finds tbat the project
environmental eftects~
SI!CTlON 2, The council hereby approves the Grant of
Basement for Parcel No. CB 21/27-9~/B, the legal desc~iption of
which is attached hereto as Exhibit A and made a part hereof by
~. reference, and authorizee the Mayor to execute the same on
behalf of tbe City of Palo Alto,
INTRODUCBD AND PASSED:
AYES:
IIIOES:
ABSBNT:
ABSTBNTIONS:
AT'I'BST: APPROVED:
City Clerk Mayor
APPRo\'!ID AS TO FORM: city Mallager
SiDlar ASst. city Aftorney Director of '~ce
Rei! PrOPerty Maliiger
~o lII~f .. linE __ ElM TMIS lHIE
Recorded withcut f~e ~nder Sect~on
6103 Government Code of the State
of California. After recording
return tD:
Santa Cllra Valley Water District
5750 Alaaden (xpressway
San J~se, CA 95118
--------------'SPACE ABOVE THIS UNE FOR
RECORDER'S USE ONL¥
A.P. No.: 137-17-12 & 137-16-31
Project No.: CE 21/17-91/8
Project! S(VWD -Bol Par, Bike Path
District Parcel No.: 1021-;22
===lG RAN T OF E A S E M E NTI====
FOR A VALUABLE CONSIDERATION, receipt of ht;c~ is hereby acknowledged, THE
CITY OF PALO ALTO, a .. nltipal corporation (G~~OR) bereby grants to
tbe Santa el.ra Valley Water District, a public corpor.tion,
its succe.uors and IS'si9nS, (GRANTEE)
!n easement for flood water control management ~nd/or
stOnA water drai~age purposes together with the right to
install, operate, maintain. and repair associated
underground i~rovements and facilities
in, under, and through t~at teria1n r~al property in the City of Palo AltD,
County of Santa Clara, State of California, describ2d in [Xhlbit A and shown
on Exhibit B whkh exhibits Jre attached h!rdo, and made a part hereof,
subject to tbe foll0.1ng conditions!
GRANTEE, its successors and assigns, and its and their respecti~e contractors,
agents and employees shall have access to the referenced easement and right ~f
way for the purpose of exercising the rights herefn granted, provTded h~weyer
tbat; .
1. If It beco.es necessary for GRANTEE to undertake capital Improvement
pr~jects within the easeme~t* and exercise the r1ghts granted herein,
GRANTEE agre.s to notify GRANTOR's Director of Public Works of the design,
materials, location ind extent of such work, in writfnq, ninety (901 days
Tn Idvin~e of the commencement of the work. GRANTEE's written
EXHIBIT A (I of 7)
.," . ----------
notif1catian ~hall include a detailed d~scriptiDn of ali imp~ovements to
be constructed alld installed within the easemer.t, .... hich impro'.'e<'lents shall
. be subject to the rellitw and approval of GRANTO"R's Virector of Publ Ie
Works. GRANTEE agr~~s to obtain any required construction De~its from
GRANTOR prior to thf comm~ncement of construction thereof, except in an
emerg:ency situattor!. rn such emergency situations, GRANTEE may COlTlTletlce
work within the easement but shall obtain any required construction per.it
within i reisonable time after the emergency Ends, but no later than thre!
(3) bUslnoss days. GRANTH s~all notify G!!.~NTOR'S Director of Public Works
lmmedlately upon completion of any .nd .11 work performed. GRANTOR'S
issuance of any construction permit shzl' not be deemed t~ impose any
liability on GRANTOR for the design, materiils. Dr location cf iny
lmprov ... nt. i"st.lled by G~TEE.
GRANTEE furt~er agrees to notify ~RANTOR, in writin9~ ninety (gO) days in
.dyance of any reque.t by GRANTEE tMat GRANTOR reloc.te its existing
installed facilities. The re1ocation of these facilities shall be subject
to approval by GRANTOR's O;rector ~f Public Works and shall be perfor,med
by GRANTOR, O~ ~nder GRANTOR's direction, at the sole ~ost and expense of
GRANTEE. GRANTOR r!serves the right to maintain, operate, r!plir, remove
Dr replace extst;ng GRANTOR installed facilities within the eisement~
However, to the extent practicable, 'RANTOR agrees to coordinate such
a~t1vities with GRANTEE to iyoid any ~nre~sonable t~acts to GRANTEE's
facilities within the easement except for emerge~cy cases.
GRANTEE ~xpressly ~grees to aa1ntiin, repair. relocate, or replace any and
111 improvements installed by GRANTEE, It its sole cost and expense;
provided. ~owever. G~AHTEE shall not be responsible for the maintenance.
repafr, reToeatioQ O~ replaa.ent of the bike path paving and improvements,
the landsc.ping .fter the tMre. (3) year establishment perIod, Dr the
lateral draf~ag~ line$ Bnd drop inlets, following completion and
acceptance of the improvements by GRANTOR. Shol!ld access to the ~asemei'lt
require or result in t~e dlsruptlon of any pedestrlan or bike actlvity,
or have .ny Impact on adjoinIng propertIes, tho right to initi.l or
continued ac~eS5 shall be subject to the review and approval of GRANTOR's
Director of Public Wcr~s and GRANTOR's City Traffic Engineer.
~~1 notices pursu3nt to this Easeme~t shall be addressed as set forth
be 1 0'"
Hinage~, Real Property
City of '.10 Alto
P.O. Box 10250
Palo Alto, CA 94303
City Tr.ffic Eogin ...
Clty of Pal. Alto
P.O. eox 10250
Pal. Alto, CA 94303
Director of Public Works
Clty of Palo Alto
F.O. Box 10250
Palo Alto, CA 94303
2. GRANTEE, its successors and assigns, and its and thefr agents. employees,
a~ contractors, shall make any e~caYitiDn or perform any construction in
2
EXHIBIT A (2 of 7)
crN CF PR..O R... iO
STA.NtIOJlD
IY£R8ITY
~ --" •• "11' ....
a •• ,....' . .........
o ;lD"'II"'[
'II .......
11 .........
bI •• "' ....
S4J DR JJJ ~ ~-"'-.;~
of 7)
UH .,. •• STAT,S
10' A.w.l:R rCA
y ..... Hp..srlTAL
MER TO IE fI:IlJlIi!En:
tL\fl. UMI· )15111 SQ.n. \lA 2,411 :;C.
CREEl( •• 9UT. eM II FIC.
lVTR. -115111 SQ.TT. OR 2.'1111 Re.
ttlI'OIIIIIY COS"":!!'" Fl!SEIO'T5,
'Itt "fI!" ... 31213 liIII.rt. OR •• 15" 11:.
ta: T ... ~ SQ.n. OR .... FiC.
TCE"C'" -5411 9O.n. CIt I.Ui' AC.
Ta: "D'" -~ SQ.n. OR J.I1S 11:.
EXHIBIT - B
""I".'
--...11' .....
" .... ..... ..... ..... ......
", .. :", .
'-~i:~::
. ~--..:~ ..
•
J02J·J22B
The lau;! refern:d to berem is situate in the City of ?ilo AJto~ Coont)' of Santa Clan., Sute of California
aDd is described ~ fO]Jows:
Bri~ I. pomoo of that ceruio parcel of l.and de5Ct'ibed .in the deed from Southerc. hdfic Transportation
Compay, I Delaware c:otpJrariCJ!I. to Count)' of Sama Oan., • ~Iitiea! subdivisiol! of the State of
CaJiforui> "",,<dod Septemb<r 24, 1974 "' Book B099 of Official RecxY.ds II pag. 166.
SoIIIlI ClMa Couaty Records. boing more pArticularly d=ibe<l as foUows:
BEGINNING II the poiol of ioIeneclioo of th. northwesterly bow!c!ar) of lb. 13lII!s furmerly of Ibe
Edward Batr01l Esute C<>D>jl:my will! .I~ IhlI! is p..-allel with ...: disWtt 20.00 feet .....ny ...... ured
II rip< ,."t ... i'rom lb. west<r!y line of said 13lII!s C>JtIYe)'od ., tile COU!tty of SoIIIlI Clan abov< referred
10; "'-:e lea>ing uid POINT OF BEGINNING and nsnnin& ala", uid paral!ellin. S 36'07'E 1868.44
fe«; theooe leaving Wd pmJIelline 81 rifht 1Of1 .. S 53'5l"W 20.00 _ Ie ,aid westerly line; lIleoce
aIoci uid .....r.dy line S 36'07'E 2SS.OI fe«; thmce leaving uid westerly line .. rigbt aoBi"
N 53'53'E 20.00 rea to aline IhlI! is parallel with and disWtt 20.00 fee< ....my. measm1!d .. right
,."teo, from uid previously described west<r!y line; theou 110", uid p ... IlIe1line S 36'07'E 328.86
rea ..... or I ... Ie tho I<lQIhwesterly boundary of Wd 13lII!s fo"",,,y of !be EdwanI Barroo Esute
Com(>aI!y; _leaving said pmJIeI line aod nsnnin& II.., said SOUIhwalCrly boua<Iory S 74'0 I'E
65".12 feet ID aline _ is dmrn parallel with aod disWtt 60.00 fo« easI!rly. measut<Od u right ... 1 .. ,
from said previously described _y line; _ leaving said SOUIh_y bowIdary aod -'""'1ing
aIoo!c aid IaoI desaiI>od pmJIoIl .... N 36'07'W 380.24 fe«; "'-:e Icavina said pvaI101 line II right
,."t .. N 53 '53'E 20.00 feet 10 iii. easterly line of said lands oouvoycd 10 Ib, County of SoIIIlI CIaia;
...... ~ said easI!rly line N 36'OTW 2SS.0J feet; tba>ce leaving said ....my line .. rip<,."t ..
S 53"53"W 20.00 feet 10 a line 1I>aI1s drawn pml!e1 with aod cliSlaD! 60.00 feet easI!rly , _ at
rip< ""lies, from said previ<msly described _y line; tba>ce aIooz We! IaoI described pmne! line
N 36'O'rW 1406.35 feet; thOl!Ce leaviog <aid para!Jelline S IE'07'16"W 12.65 r... '" • I ... Ihat is
drawn panJ1e1 with aod d"1St>l1t 50.00 r... e2Ster1y, measured .. right ,."t ... from said puvioosly
described westerly I ... ; iii...,. ala", Wc! last described panJ1a 1m. N 36 'C7'W 43S.14 feet; Iheooe
!ertioc said pmI!eI r ... aIoog !be an: of. _ cuive to the rl&h< havi., • raOws of 145.00 feet
Ibrougb a _ ,."to of 2'58·53' fur an an: disesoce on.55 fo« to said lIOtIh_y line of the Iuds _y of the EdwanI ilatro. Esute Colllpillly; theru:e aI"III said oorthwesterly iiD< S 15'56'W 38.29
f ... to the POINl" OF BEGINNING.
ContaiciDI an &i.U of 2.41 J mes of 1&00. more or less.
(Exhib1t A 5 of 7) EXHIBIT-A
.• > .
OArEO: GR,~NTOR:
Cit< of P,lo Alto,
i! ~:unicipa:l (orporat ion
By: ________ _
ACI()jOIllEOGEMOO
STATE OF CALIFORNIA )
COOliT! OF SAHTA CLARA ) ...
On • 1993, before me, a Notary Pub' ic in and for-
said County and State, personally appeared .-:::-:::-=:-.:=,-:-=-::====_ o pers.onally known to !!'Ie • or -0 proved to me 01\ the basis pf satisfactory
evidence to be the person who~e nam~ is subscrfbed to t~e within fnstrument
and ack~owledged to ~ tnat she executed the sa~e in her authorlzed capacity
as , and that by her slgnature on the instru-ment the
p!rson(s}, or tM! entity upon behalf of which the person(s) acted~ executed
the instrument.
IN WITNESS WHEREOF, I have ~er •• nto set my hand and .fflxed .y officIal
seal tne day and year fn this certificate first above written.
Approved a5 to Form:
Sr. Asst. City Attorney
By ________ _
Approved as to Description:·
Public Works/Engfnetring
8y _______________ _
Notary Public in and for said
County and State
APPROVALS
Approved ~s to Content:
finance Dept./Real Estate Div.
By---------
Approved is to Content:
D,r.,tor of Public Works
81 ________ _
CERTIFICATE OF ACCEPTANCE
This Is to certify that the Interest in real property conveyed by the attached
Deed Dr Grant to Santa Clara Varley Water District Is hereby accepted by the
undersigned duly authorIzed agent on beharf of the Board of Directors of said
Santa Clara Valley Water District, pursuant to authDrity conferred by
Resol"tion No. 68·l5 of saId Board of Directors ,dopted on tha l6tk day of
March 1968, recorded Harch 27th, 1968 in Book 806~, Page 535, Official Records
of Santa Cllra County, Ca1iforDia, and the Grantee consents to recordation
thereof by Its said duly authorized agent.
Dated ________ _ SANTA ClARA VALLEY WATER DISTRICT
By-=-_~.".--_,,~_~~ General Kln.gey/Clerk of the
Board of Directors
EXHIBIT A (4 of 7)
r
a manner .. hich causes the least injury .or disturbance to the easemerit and
shall repl~ce ~ny earth so remo~ed by it, and restore or repair any
surface or st.:bsurface improvem!nts to OlIS near ttre s~me condit'ion H
EX15ted prior tQ such cQnstr~cticn as is possible. GRANTEE agrees, at its
sole c~st and e~pense, to repair to the satisfaction of GRANTOR'S Director
of PubliC Works any landscaping, sidewaHs, ornamental pavemEnt. ilsp~alt
paving, unuerground facilities. or structural facilities damaged or
destroyed by GRANTEE, its agents. employees or contractors.
3. GRANTEE shall at .11 times observe and comply. and sIlal1 cause its or
thei r agents t cont rac tors and employees. ; f any, to absen'e and CO!l".p 1 Y
with all exfstinQ and future fEderal, stat2 and local laws. ordinances.
regulations. orders and decrees w~ich may affect G~~IEE~i exercise of
rights ~nd obligations granted herein.
4. GAANTH expl'essly agrees to protect, indemnify. defend, and hold harmless,
GRANTOR, its council members, cfficers~ agents. and employees from all
liabilities, lcsses, damages, claims or dem~nds on account of Qr arising
OlJt of any if\jury or Tossp.s re--'sult ing from GPANTEE'S exercise of rights
granted herein or the performance of its obligations hereunder.
5. In the event t~at GRANTOR must bring action to secure GRANTEE'S
performance of t~e conditions set forth in this Grant of Eas!ment t GRAK!OR
shall be entitled to reccver from GRANTEE, reaso~able and necessary legal
and Dth~r expenses, inclu~ing. interest limitation, attorney's fees and
court costs.
RESERVING unto GRAMTOR such other r~ghts, ~r.cludin9 the rights hereinafter set
fBrth~ IS will not unreasonably interfere with or prohibit t~e contemplated
use by GRANTEE. its successors and assigns. or the rights lr.d easement herein
granted~ provided GRANTOR may not place cr permit any building Dr struct~re in
the easement Dr otherwise unreasonably interfere with the full enjoyment by
GRANTEE of the .aseoent hereby granted.
TOGETHER with Temporary Construction Ease~nts in the cross hitched areas
shown on Exhibit B attached hereto. These T!mporary Constructior. faseroe"ts
~il1 be used for access. storage cf materials, and revegetation for a maximum
period of three-years during the construction of tne Matadero Creek Flood
Control Project and the rewegetation program. Construction is estimated to
start on April 10, 1994.
GRANTOR gives GRANTEE permission t~ use the Temporary Construction £asement
Areas periodically to-aaintain the new landsc~ping for an additional three
year period. All Temporary Construction Ease .. nts hereby granted shall
terminate on April 10, 2000.
3
EXHiBIT A (3 of 7)
" ..
• »
/'
r
Exhibit A (7 of 7)
lE1IIlL •
Nl'5
IItTIIIl. •
HIS
EXHIBIT-B
,." to. SU\II
ORDINANCE NO.
ORDINANCE OF THE COUNCIL OF THE eIn OF PALO ALTO
APPROVING AND ADOPTING A PLAN FOR L~ROVEMENTS TO
BOL PARK
WHEREAS. Article VIII of ehe C~rter of the City of Palo
Alto and Section 22.08.005 of the Palo Alto Municipal Code require
that before any substantial building. construct.ion, reconstruction
or development is commenced or approved, upon or with respect to
any land held by the City for park purposee, the Council shall
first cause to be prepared and by ordinance approve and adopt a
plan therefor; and
~, 801 Park is a dedicated City park; and
1fBXREAS, the Santa Clara valley Wat.er Dis.trict. has·
requested the City to allow it to construct certain i:aprovementB to
Bo1 park,. in connection with ita Phase V improvements to Matadero
Creek, as shown an those cErtain plans entitled -MaP and
Construction Plan for Ma.tadaro Creek -Phase V: Stanford ChaImel
Confluence to Barron Park Sediment Basin -Santa Clara Valley Water
District-'the ·Plan·). approved by the Arehitectural Review Board
OIl February 3, 1994.; and
WHERBAS, the Plan bas been reviewed and recommeoded for
approval by the Architectural Review Board and the Planning
CClI!I:IIission in confoxmance with Chapt.er 18.82 of the Palo Alto
MUnicipal Code (Site and Design Review). and the Planning
Commission has found the project to be in conformance with the Palo
AI to Canprehens i ve Plan; and
'WJiEREAS ~ the Council desires t.o approve the Plan and to
adopt it as the o.fticial plan for the cOllStruCi:ion of improvements
to Bel Park.
NOW, ~~FORE, the counci1 of the City of Palo AltO does
O~;rN as tollows:
SBCTrON ]. The Plan, a copy of whiCh is on file in the
office of the Planning Division, and to which copy reference is
hereby made concerning the full part i culars thereof, is hereby
approved and adopted.
SI!CTIO!! 2. The Cicy Council hereby finds that this project
will ha~ no significant adverse effect on the euvironment.
'.
\,
)
.,
.", .
, )
--"" .... ."
SEC'I'ION 3. This ordinance shall become effectiv-e upon the
comu~c.ement of the thirty-first day after the day of its adoptioD_
INTRODUCED :
PASSED:
AYES:
NOES:
AllSTENTlONS:
A'l"l'IlST:
City Clerk·
APPROVED AS TO FORM:
sliiiIor ABet. City Attorney
_ ...... 2
APPROVED:
Mayor
city Manager
Director of Public Works
Director of Planning ana
Communi ty Bnvi ronment
RESOLUTION NO.
RESOLUTION OF THE COUNCIL OF THE CITY OF PALO ALTO
APPlWVING A GRANT OF EASEMENT BKNEFI'M'ING THE
S1oN7A CI.AAA VALLEY WATER DISTRICT
WH:ERBAS, the Santa Clara valley Water District ("Oistrict-)
is undertaking flood control work on Matadero and Barron Creeks in
the vicinity of the Barron Park neighborhood, and a new underground
bypass channal is being proposed 00 a part ot the City of Palo
Alto's property in Bel Parki and
WlmRBAS. the District wishes to obtain a.c easement for
water management, storm drainage, and flood control pu~seB and
the right to install, operate, maintain, and repair associated
underground improvements a~ the referenced location;
NOW, TllBREFORB, the Council of the City of Palo Alto does
hereby RESOLVE &8 follows:
SR~ 1. The COUDcil has conaidered. and hereby apprOVl!S
the negatiV'eec.larat.ion tQr the project a..Ild. finds that the project
will ba¥e no significant environmental effects.
SRCrJ:Olf 2. 'I'be Council he~ approves the Grant of
Basemen~ for Parcel No, CB 2~/27·92/B, the legal description of
which is attached bereto &.8 Bxhil:lit A ADd made a part hereof by
this reference, and authOrizes the Mayor to execute the same on
bebalf of the City of P"do Alto.
INTRODOClID lIND PASSED:
AYES:
NOES:
ABSBIIT:
ABSTBNTIONS :
AT'l'EST: APPROVED:
city clerk Niyor
APPRCVBD AS TO PCRM: city Milriiger
S~or ASst. C1ty Xetorney D1rector of F1nance
Real Property Miriager
_ .........
. -
Recorded without fee under Sectfon
6103 Government Code of the State
of Cal ifornia. After rec!lrcing
return to:
Santa Clara Valley Water District
57&0 Almaden Expressway
San Jose, CA 95118
SPACE ABOVE THIS LINE FOR
RECORDER'S USE ONLY
A.F. No.: 137·17·22 l 137-16·31
Projoct No.: CE 21/27·92/8
Project: SCVWO . Bo1 rark Bike rath
Dlstrlct Parcel No.: 1021·122
~==IG RAN T OF E A S EM E NTI==_
FOR A VAlUABLE CONSIDERATION, receipt of which is hereby acknowledged, TUE
CITY Of PALO AlTO, • municipal corpDrotiDn (GRANTOR) hereby grants to
the Sanh C1 ara Va' ley Water District. a: public corporation,
its successors and aSSigns, (GRANTEE)
an easement for flood water contro1 management a~/or
storm water drainagE purposes together with t~e right to
install, operat!, maintain, and repair associated
Llnderground ilDproYe.ents .and faci 1; t .. es
1n, under, and through that certain real property in the City of Palo Alto,
County of Santa C1ar., State of California, described in Exhibit A a"d shown
on Exhibit B whick exhibits are attached hereto, and .. de a part hereof,
subject to the following conditions:
&RANTEE, fts successors and aSSigns, and its and their respective contractors,
agents and employees shall have access to the r~ferenced easement and right of
way (Dr the purpDse of exercfsfng the rights herein gr~~t!d, provided however
that: .
I. If It becaoes neceSSiTY for GRANTEE to undertake capital Improvoaent
projects within the @aseaent, and exercise tne rights granted herei~,
GRAKTEE agrees to notify GRANTOR's Director of Public Works of the deSign,
~terials, location and exte~t of ~uch work, in writing, ninety (90) days
in advance of the c~ncement of the work. GRANTEE~s written
EXHIBIT A (1 of 7)
.-, I
<, ,
notificatiGn ~hil1 include a d~tailed description of all improve~ent5 to
be constructed and inst~11ed within the easement. which imprcvem~nts shall
be subji!ct to the relliew and approval of GRANTOA.T s Director of Publ ic
Works4 GRANTEE igrf~s to obtain any required construct inn permits from
GRANTOR: prior to the cOlllTlencemerlt of c.onstruct ion thereof, except ir1 an
emergency situation. In such emergency situations, GRANTEE may commence
wDrk within the easement but sha11 obtain any req~ired construction permit
within I rfascnable ti=e after the e~rgency ends, but no later than thrfe
(3) business days. GRANTEE Shill notify GRANTOR'S Director of Public Works
immediately upon completion of any and all work p2rfonmed. GRANTOR'S
issuance ~f a~y ~onstruction permit shall not be deem!d to impose any
liability on GRANTOR for the des~gn, materials, or location of any
improveAents ~nstilled by GRANTEE.
GRANTEE further agrees to notify GRANTOR, in writing, ~inety (90J days in
advance of any requ2st by GRANTEE that GRANTOR relocate its existing
installed facilities. The rel~cation of these facilities shall be subject
to approval by GRAHTOR~s Director of Public Works and shall be performed
by GRANTOR, or u~der GRANTOR's direction. at tne sele cost ~nd expense of
GRANTEE. GRANTOR reserves the right to maintain, operate. T!pair, remove
or replace existi~g GRANTOR installed facilities within the easement.
~oweyer, to the extent practicable, GRANTOR agrees to coordinate such
acti.ttles with GRANTeE to •• old any unreasonable Impacts to 'RANTEE's
facilities within the easement except for ~rgencl cases.
GRANTEE expressly agrees t~ .a1ntii~t repair, relocit~, or replace any and
III iaprovemonts Instilled by GRANTEE, .t it •• ole cost and expense;
provided I however, GRANTEE shall not be responsible faT the maintenance.
repair, relocation or replacment of l~e bike path p.ving and improvements.
the landsclping .fter the three (3) year establishment period, or the
lateral drainage lines and drop inlets, following comp1etion and
acceptance of the improvements by GRANTOR. Sbo~ld access tc the easement
require or result in the dis,"ptton of any pedestrian or bike Ictlvity,
or bave any impact or. adjoining properties, the right to initial Dr
continued access shall be subject to the review and appr~wal of GRANTOR~s
Oirector of Public Works and GRANTORls City Traffic Engineer.
All notices plJrsuant to t~is hsement shall be addressed as set fortf\
below;
Manager, Real Property
City of PlIo Alto
P.O. Bo. 10250
P.l. Alto, CA 94303
City Traffic Engineer
CIty of Palo Alto
P.O. eox 10250
Pa10 Alto, CA 94303
Director of Public Works
CIty of Palo Alto
P.O. Bo. 10250
Palo Alto, CA 94303
2. GRANTEE, its successors and Issigns, and its lnd their agents. employees,
and contractors, shall make any excavation or perform any construction in
2
EXHIBIT A (2 of 7)
a manner which causes the least i~jury or clistu~bance to the ea~ement and
shall replace any earth s" removed by it, and restore or re~a~r any
surface or ~ubsurfc:ce impro\lements to as (lear the same cOf)chtton as
existed prior to such construction as is possible. GRANTEE agrees, at its
so1e cost and expense~ to r~pajr to the satisfaction of GRANTOR'S Director
of Public Works any 1andscapin99 sidewalks, ornamental pavement, asphalt
pay'n9. underground facilities, or structural facilities damaged or
destroy~d by GP..ANTEE, its agents, empToyees or contractcrs.
3. GRANTEe shall it all times observE and comp1y, and shall c~use its or
th~ir 'gents, contractors and employees, if any, to obser\le and ccmply
Y1t~ all existing and future federal. state and 10CIl laws, ~rdinances,
regulations, orders and decrees which may affect GRANTEE's exercise of
rights and obligations granted ~.rein.
4. GRANTEE expressly agries to protett t indemnify, defend, and hold harmless.
GRANTOR, its councii members, offitfrs, agents, and employees from .11
liabi1itfes, losses, damages, claims or de~ands on account of or .rising
out of any injury or losses resulting from GrAnTtE'S exercise of rights
grar.ted herein or the performance of its obligations hereunder.
s. In the event that ~RAHTOR must bring action to s~cure GRAHTEE'S
performance of the conditiDns set forth in tkis Grant of Easement. GRANTOR
shall be entitled to recover from GRANTEE, reasonable and necessary legal
and other expenses, including. interest limitltion, ittorney's fees a"d
court costs.
~ESERYIHG unto GRANTOR such other Yights. including the rights h~re!n.fter set
forth , as will not unreasonlbly interfere wit~ or proh1bit the contecplated
use by·-'P.ANTEE~ ns successors and assigns, or the rights iil'nd easement herein
grant~~ provided GRANTOR may not place ~r permft Iny building or structure in
the .a.eoent or ctherwi •• unre,sonably interfere with the full enjcyaent by
'RANTEE of tne ea .... nt hereby granted.
TOGETHER with Tempcrary Construction Eas ... nts in the crcss hatched areas
shown on Exhibit B att.ched heretQ~ These Temporary C~nstruct1on Eas~nts
will be used for access, st~rage of materials, and rtvegetation for i maximum
period cf three.y •• rs during the co.struction of the Hatadero Creek Flovd
Control ~Dject and the revegetation pr~;ram. CQnstru~tion is estimated to
start on April 10, 1~94.
GRANTOR gives GPJYffEE penai;sio" to use the Temporary Const,",lic. rlsement
Areas periodically to' .. int,in the new landscaping for In additional three
year period. All Temporary Construction Easements hel~by granted .hall
tenoin.te Dn April 10, 2000_
3
EXHIBIT A (3 of 7)
•
,< J
DATED : GRANTOR:
Citt ~f Palo Alto,
a Municipal Corporation
By:
ACKNOWLEllr;EHENT
STATE OF CALIFORNIA
COIJNTI OF SANTA CLARA os.
On ~ 1993. before me, a Notary Publ ic in and f[}r
said County and State I p!rsonal1y appeared ___ ,-;:-:-.-=,.,....",.-:-:====_ o personally known to'llte -or -0 pr-oved to me !In the basis of satisfactory
~vidence to be the persan whose name is subs~ribed to the within instrument
and acknowled9~d to me that sh! executed the same in ~er auth~rized capacity
is , and that by ker signaturE on the instrum~nt the
person(s), or the €ntity upon behalf of which the person{s) acted, executed
the instrtlment.
IN WITNESS WHEREOF, I have horeunto set my nand and .fflxed my official
seal the day Ind year in this certificate first ibove written_
Approved IS t. ron.:
Sr. Asst. City Attorney
By ________ _
Approved as to Descriptlan:
Public Works/Engineering
~------~-----
Notary P~blic in and for said
County and State
APPRDVALS
Approved as to Content:
Finance DEpt./Rea1 Estate Div.
8y _________ _
Approved as to Content:
Oirector of P~blic Works
8y __________ _
tERTI FICo'TE OF ACtmlJlC£
Thls 1$ to certlfy that the Inter •• t in real property conveyed by the attached
Deed or Grint to Santi Clara Valley Water 01str\ct ls hereby .ccepted by the
underslgned du1y .uthorized agent on behalf of the Board of Directors of .ald
Santa Clara Valley Water Oistrict. pursuant to authority conferred by
Resolution Ho. 68·25 of said Board of Directors adopted on the 25th day of
Marth 1968, recorded Karch Zlt~, 1968 In Book 8069, Page 535, Offlcl.l Records
of Santa Clar~ County. California, and the Grantee consents to recordation
thereof by its said duly authorized agent.
[)ated, ________ _ SANTA CLARA VALLEY WATER OISTRICT
By
General Kanager/Clerk of the
Board of Directors
EXHIBIT A (C of 7)
\
(
•
JQ2J-J22B
The land referred to b.ereiD is situate in the City of Palo Alto, Count)', (l"f Santa Oan, SU!e of California
aDd is described as foUows:
BeiDg .;x>rtion of dlat cmaln J>UC'l of land described in Ibe deed from So-.J!hetu Pacific Transportation
eozq,my~ a Delaware o:.rponlioa ID County of SI!DIa Clara., .. political subdwision of me Swe of
c.Jifomi> re<on!ed September 24, 1974 "' Book 00Y9 of Offi,ial R=ra. at Pilie 166,
s.... a.r. Ccumy Rea",!" 00", more pam""I.,1y deson"bed as fonows:
BEGINNING II 1I>e point of inImectioo of th. north ........ ly bolln,lIry of !!Ie land. formerly of the
_ Bamm_Company wid> a line thai ispvalle! with and 01SW!! 20.00 feet easterly, measured
.. rieht ql .. , from th • ..-Iy line or .. id lands ", ... yod '" the County of s.... a.r.1bo .... r_
ID; tbeace leaving uid POINT OF BEGINNING aod running aI.", uic! p>nIIe! Ii.,. S 36°07'E 186l!.44
feel; ~ leaving Wd parallel line It rip. angles S '3'S3'W 20.00 feet '" said _Iy line; thence
aIO"i said ..-Iy line S 36'01'E ~.Ol f<et; 11>= leavm, said ..-Iy line at rigIn angles
N SJoSJ'E 20.00 feet IX> aline IhIl is parallel wid> aod distaD< 20.00 feet easterly. me3SIIrIId at rip!
....... from IIid pm>iously desa1'bod westerly 1m.; thence along said parallel 1m. S 36°07'E 328.86
feet mo<e or I<s.s '" the IOIlIhwesterly boomdary of uid lands formerly of Ihe Edwa.o-d Bamm Emte
~ _ leaving said parallel 1m. and running aIooiI said IOIlIhwesterly boomdary S 74 '01'£
65_12 feet to a !iDe UW is drawn parallel "itb IDd 0 ...... 60.00 fOOl -.. _ II riJbt ... 1 ...
from said preYioosIy deraibod _1 line; 1I>onee leavm, Aid lOIlIh_y boundaly IDd running
.."" Aid las14esaibed paroIIelliJJe N 36"J7'W 380.24 fea; 1I>en<:eleavil>f said p>nIIellm. .. rip!
...... N SJ"SJ'E 20.00 feet 10 lite easterly 1m. of Aid lands t:ODVe)'od to Ihe Coumy of S.,.. Clara;
~ IIoq said -.rIy 1m. N 36"07'W 255.01 f<et; _ Ieavitta said _y 1m. at riJbt angles
S SJ"SJ'W 20.00 feet '" aIm. thai ;,. dI3W1l parallel wid> and distant 60.00 feet _, • _ II
riP< ....... from Wd previowly deraibod _y liDe; theo<e 010lIl said last deraibod panlId line
II 36"07'W 1-«I6.:IS feet; lhem:eleavil>f uId panlId 1m. S 16°OTI6"W 12.66 fOOl 10 aIm. IboI is
drawn parallel wid> IIId di&laitt SO,OO feet =t«iy. measured II ricl>' ....... from Wd pr<viousIy
dscribed """'-<rly rme; meoc:e aloDi said last descn'bod pzraJle! 1m. N 36°07'W 485.84 feet; 11>=
leavil>f said panIleI JiDe aIO"i Ihe "'" of • _ curve '" the rigbt baviDt I radius of 145.00 _
1fuoaP.. _ ..... of 2°51'$3° fo< .. an: dislao<e of7.S5 _ '" Aid DOrth ...... I' liDe of the lands
_, of Ihe Edward Bamm Estate Company; lbmce alOIIi Wd "",II""'I«Iy liDe S IS'S6"W 38.29
_ 10 the POINT OF BEGINN1NG.
ConWning .an area of 2.41 1 acres of l1.nd~ mare or-less.
EXHIBIT-A
CIn ~ PfLO Fl. iO
~ .. --" ....... ......
If .111 ..... ' .... . ........... .....
" .11 ..... 1 .... .. ....... .....
11 •• ..".. .. ......
.... trs"W • .....
1-111,-1.-"""" •
UNJT£~ .T"7~" 0' ,"''''.11 I C A
V~A. NO.' JTAL
fII£II TO IE R::IIJlIIlI:
LnU LJNl • lliill' sa.n. OR ~.4LI PC.
OI£DC •• SQ.n. (II: I AC.
TOTfI. • 115117 SQ.fT~ IR 2.411 PIC.
mt'QOIIIrr CQIOS1lIIICn ... omom;,
TC[ .,.~ • m19 SQ."~ Ill: 1.154 R:. ra: .. ~ ..... &1IUT~ DR .... fe.
Ttt ·c·· 50417 m .. n. t:R •• 14111C. ra: ~II~· 1II1Cl SCI.n. CR 1.11!lI lie.
EXHIBIT-B
'> •
j .,.-'
:~
,
T
........ ,---
Exhibit A (7 of 7)
~I
IllS
EXHIBIT-B