HomeMy WebLinkAbout0118.094~ ~
January 13, 199'
THE HONORABLE CITY COUNCIL
Palo Alto, California
~gional Water Dual ity Cont rol Plant Regui red Inshc_re Monitoring
llSl:,eement with United Sta;'ps Department of, the Interior, Geological
~'ey 'USGS)
Members of the Council:
Report i!'l Brief
This report recommends that council approve a Joint Funding
Agreement with the United States Department of the Interior,
Geological Survey (USGS), obligating the City to pay $28,425 to
USGS for monitoring required by the Regional Water Quality Control
Board (Reaional Board). Funds are avail,;,ble tn thoS! Regional Water
Quality control Plant (RWQCP) FY 1993-1994 operating budget-to
cover this expense.
Background
In previous yeaTS, the City has partially supported USGS monitoring
near the Regional Wa~er Quality Control Pl~~t (RWQCP) discharge for
toxic pollutants in sediment and clam tissue. On July 21i 1993,
the Regional Board reissued a new NPDES permit to the City
requiring a mol~ extensive receiving water monitoring program. The
permit also requires the City to coordina~e its monitoring efforts
with the USGS. The latter requirement is due to the fact that USGS
r.aB collected data at this station since 1976. The Regional Board
would like to take adva:ltage of their K..."1.o\llledge and experience in
obtaining and interpreting future monitoring data.
Qiscussion
The purpose of the monitoring is to detern'.ine the concentration of
toxic pollutants (principally metals) which have accumulated in the
sediment and clam tis-sue near the RWQCP discharge point and to
cbserve trends over time. Clam data collected to date has
demonstrated dramatic improvement i in keeping with reductions whict.
have occurred i:::::a the RWQCP discharge. The increased monitoring
effort will provide data more fre~~ently and for more pollutants.
It is anticipated that the fllt"ure monitoring will continue to
document the positive environmental impacts associated with
reductions in discharge amounts.
Monitoring will be conducted in a manner that will provide high
quality data that is compatible with hist,ori~.3.1 data, data f:com the
other South Bay treatment plants i and with programs 3uch as the
CMR~11S;94 -1-
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Regional Monit':)ring Pro3ram (RMP). Monitoring will be conduct,ed in
accordance with the sampling paramet~rs and frequency specified in
the City's NPDES permit. USGS will summarize the data and submit
an annual report to the City. A,.-mual reporting ... ill be consistent
with ~~ reporting format and will be coordinaced with the
receiving water moni taring programs of the San Jose/Santa clara
Wa.ter Pollution control Plant (WPCP) and the Sunnyvale WPCP. The
City:s payment of $'28,425.00, l.lnder the attached agreement,
includes charges for the basic monitoring program of three sampling
events and analyses per year. USGS will provide for additional
data collection as part of their ongoing resea.rch. This jOint
effort by Palo Alto and USGS takes advantag~ of efficiencies
gained, when a single data collection effort is ueed to accomplish
several goals.
&nvironment&l Impac~
The project is exempt from th~ Ca.lif~rnia Environme-ntal Quality Act
("CEQA") unde_r Section 15306 of tile CEQA Guidelines.
Recommendatiog,
Staff recor.unends tha.t Council appro'l'e and authorize the Mayor to
execute the at.tached Joint Funding Agreement: with the uni ted States
Department of the Interior, Geologjcal Sur.rey. in the am0:..:.nt of
$2S~425, for th~ sediment and clam monitoring program required by
the Regional Water Quality Control Board.
Respectfully submitted,
s1~JI~r~
Associate Engineer
PHILIP SOBEL
7LE20lli~enta
GLENN S. ROBERTS
Director of Public Works
Attachment: Agreement
CMR.l1.8 ;94 -2-
... oI!-,
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jRE\', &'8&)
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Depanmem of the Interior
GeolOglClil Survey
Joint Fundlng .... ljIreemGim
FOR
WATI;A RESOURceS INVEsnGATIONS
n-HS AGREEMENT is entered into as of the 1st da)/ 01 January 1994 bv tne GEOlOGICAL SURVEY,
UNJTED STATES DEf=!AATMENT OF THE INTERIOR, party 01 the first pan, and tt"le "Crt)' 01 Palo Alto, party ~ the
second part
~. The ~ hereto ~ that S4Jbied 10 the availability of approprta!k1ns and in ac:orda'1Ce w~.lheir respective aulhonies
theIe shaJ1 be rnai.rUinad 10 cooperation _monitoring 01 trace elerner:t concentrations in clams and sedrme!11s in Ihe
vicinity of Piho Atto Sewage Tleatmen:! Plam: outran as per lI1e aT1ac."ed propt:lSal, heremafter c.;.lled t~ program.
2. The folklwlng amounts shan be oontJibuted 10 cover an of fhe cosi of thtt nece~ fiold and office work directly relai'ed
tCl this program. but &xcMfmg any bureau lelr'eI general ad minjstra!: .... e 0( accoun tJog work in tl"!e office of M~r party.
(a, $0.00 by 1tIe party oi the (irst par1 during: Ule period January', 1994
to Jarwry j, 1995
(b) $28,~25,OO by the party of the second pan duMng Ihe period January 1, , 994
to JaruaI)' 1, 1995
(0) Addmonal a.roounts by each party dUling tN! abol(e pefoo or succeeding periods as may be determined by rTlllil)aJ
agreement and set forth in an a-xcha11Qe of klt!e~ between the partii'lS
3. Expenses inCUrred in itle per10nnance of this program may be paid by etthE:r pany in. cornorml!y wt.h the laws and
regulations respedively govemifl; ",ac.'" pa~, provided that so far as may be m..rtuaJiy agreeable an expenses shan .be
paid .in 1he first manc:e by the party of tile flrsr part with appropriate l"3imbursemem 1hereafter by the party of the second
part Each party shall fumish to the ether party such s!aielTlems or reports or expenditures as may be needed to satisfy
fiscal requirements •
... The field and office work pertaining to this program shan be under thfl cflrection of or subject to pericxflC r€vie'fll by
an aUlhortzed representative of tile party 0' (he firsl part..
5. The areas w bel inckKfed in the program shaD be determined by mutual agreement betwEt9n the parties hirel0 or their
authoriz.ed fepl"BS8n1ativ&S. The methOds erJ1)loyed in the field and' olfice shall be (.hose adopted by the party 01 the firSt
part to Insure the ~ired standaros of iilCCUracy subted to modifIcation by mu1ul!l agreeme~lt.
6. Dumg the pn:>gress of the work an operations ct eil:her party pertaining 10 this program shaII be open to the inspection
of the other party, and ii the work is not being carried on in a mutually satisfactory manner, eMher pa."ty may termInate
this agreernerf: upon 6U days wriUen notice 10 the other par1y.
7. The Original records !'esul\ng 1rom 1rus program wm be dep05il&d in the o1flCe 01 oOgin 0.1 those rerorO&. Upon requ.est,
copies of the original racords wiil be pmvi,1ed to the olfx:e 01 the other party.
S. The maps, records Of reports resulting from tru"s program shall be made available-to Ihe pubr!C as prorrptiy as possible.
The maps, re<:Ofd5 or repor!s normarly wiD be pubDshed by the party of the Ii rst part However, the party of the se<.:Ond
part reserves the right to pubfisi1 the results .of this program and, I already published by the party of the fi rst part shall,
upon r8ql;est, be furnished by the party of the first part, at oost. impressIons suitabfe for purposes o! reproduction similar
11J thai 101' wh!Ch the original ropy was prepared. The maps, reoords or reports publls:1ed by either party shall eonlairl
a statement or the oooperatfye l'e!a:oons between the parties.
9. 8iIDng for this agreement will be Jerx:h:Hed _ upon ;::Of11'letlon . Paymen!5 or bills are due within 60 days
after the biing da1e. If not pajd by the due date, interest will be chargad at tne current "TreasLJry rate for each 30-day
period, or portion lI1e<eoI, IhaJ the paymenl is ~layod beyond the dLre date, 131 USC 3717, Co~ron", General Fil<>
B-2' 2222, AugUsl23, 19S3,j.
GEOlOGICAL SURVEY
UNITED STATES
DEPAI'ITMENT OF THE INTERJOR
CI'lY OF PAUl ALID
By
Mayor
'_ '\ ~~ Attest: By =:-~.,.-_
) City Clerk
By Fred Hi , C.f1ief, Branch 01 Ae_~~_~Approved As
(SIGNATURE I TITLEJ To Form' By -::---:-_-,-__
Senior A_<;slstant. City Att()rn~"Y
(USE REVERSE SIDE IF ADDITIONAL SIGNATURES ARE REDlJIRED)
PROPOSAL TO THE CITY OF PALO ALTO:
NEAR FIELD RECElVlNG WATER MONITORING
OF TISSUES AND SEDIMENTS
U. S. GEOlOGICAL SURVEY
Samuel luoma, Daniel Cain, M"lChene Hornberger,
Cynthia Brown, Byeong-Gweon lee
MAIL STOP 465
345 MlOOlEFIELD ROAD
MENlO PARK. CA 94025
i
1.0 iNTRODUCTION
The Regional Waler Quality Control Board has described a Sslf Monijoring
Program for dischargers wijh ijs reissuance of Palo Alto's NPDES permij. That
program includes specifIC receiving water monijoring requirements. One of !he
requirements is for a 51atiO<1, C-t. at which inshore monijoring 01 metals and other
specified parameters is to be CO<1ducted using the clam Macoma balthica and
secflments, fO!lowing protocols compatible wlth the Regional Monijoring Program.
Monitoring efforts are to be COOrdiMted wlth the U. S. Geological Survey (USGS).
The laHer requ i rement stems from the t B years of previous data that USGS has
conected (partly in cooperation wrth Palo Mo) monijoring this environment The goa!
of the gr"ard is to take advantage of that data in loterpreting man rtoring dala in the
future. This proposal describes the near fieid (inshore) monijonng program at Palo
Mo proposed by USGS_
1.1 PREVIOUS MONITORING STUDIES IN NEAR FIELD PALO ALTO RECEMNG
WATERS
Since 1976, USGS personnel have monijored and slud"1ed tnaoe metal
concentrations in sediments and seOlffient-dweUing species in the vicinity 01 the
discharge 01 the Palo AIIo Regional Water OtJarlly Control Plant (PARWOCP). These
studies in~ial1y Iound exceptionally high concentralions of copper and silver in
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mud-dwell'lng animals hom this area. US Fish and Wildlife studies documented that
these contaminant:: afso were present in enriched concent(at~ons in birds frorr. the
itrea, and other studies docum<lnted eon!am in at ion th roughout the food chain. One
study observed that the highest c""centrallons of metals occurred nearest the
PARWQCP discharge s~e. After COI'lsideration of other possil.>le sources, this study
implicated the PARWOCP discharge as the primary source of the contaminants.
CO<1taminant trends through time were characterized by USGS at Sand Point.
an intertidal station lkm south oi the PARWOCP discharge. Between 1976 and
1989. the studies by USGS emphasized copper and silver. two of the toxic metais that
occur.ed in the highest concootrations in animal tissues rrom the area. The Iong
term data set showed that concentrations 01 melals in sediments. and especiany in
clams. decf.,ed between 19B1 and 1990. as PARWOCP improved ~s waste treatmoo!
fac;lities. The downward trends in copper oonlent of an imals correlated with reduced
Cu discharges from the P ARWOCP. Silver coocenlratlons remained elevated in the
late 198O's compared to other Iocarrties in the Bay. Wrthin the last fr ... e year;. silver
contamination has also declined, in assocatlon with a source reduction program
undertaken by PARWQCP.
Ths stuCIf3S also dem onstrated the m os! effective approaches to long term
monhOfing. The results suggested that sediments and local populations 01 Ciarns are
sensitive incfocatOlS 01 the response 01 receiving waters to changes in metal output
from a discharger. In the case 01 Palo Alto. the stOOI9S demonstrated that ,educing
metal dIscharge is reflected ~hin a year by naduoed near!ield contamination in the
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~ environment and biota of San Francisco Bay Both sedimenls and clams responded
sens~jvel)' to the changes. Both also incorpocaled important er.vironmentallac1ors in
!heir responses. When sediments and ctams were monnered together, they p'ovided
corroborating lines of eviden-ce, minim izing m i s· ~erpretations, The most eHective
interpretation 01 trends occurred when samples were CO~ec1ed at several times of
year, because 01 sessooatrty in concentrations. The data ',om a receiving water
monitoring program of this type is not only usetul lor the Regiona! Board but can
provide vatuabl9 feedback to toeal indust,;es and sman businesses as sHorts such as
PaJo Aho's sitver source contr~ plogram are carried 01,,1.
2.0 Objectives
The purpose 01 the mon ~oring program is 10 charac1erize long lerm trends in
trace elemen! concentratioos inshore near the discharge 01 the PARWOCP. Trace
elements arid associated parameters wiU be determined in frne-grained sediments and
in the clam Macoma balthica from the site \hal has beoo mon~o<ed since 1976. The
mooiloring will be conducted in a manner t~at will provide high-quarrty deta that are
compatible with the data ccilec1ed hisloricany, with data conected at other nearby
RWQCP's, and by programs SU<Jh as the Regional Mon~oring Pmgram.
Spe!:ffic objectives include:
• Provide data 10 assess 5eas.Jf1al and annual trends i1 trace element concentrations
in sediments and clams in the viCin ~ 01 the dIscharge; specifically at s~e C-l as
designated in Ihe RWQCS's SeI!·Monttoong Ptogram for P ARVt'OCP.
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• P,ese<1! lIle dala within Itle conlext of hislorical Changes inshore near the
PAfiWOCP and w~hi11 me comext of O<"'goi"9 monttoring of effluents.
• Coordinate sampling efforts with simnar inshore receiving water monitoring programs
of.San JoseiSan!a C'ara WPC? and tM Sunnyvale WPCP, al'd provide data
compalibie wtth relevam aspects of the R99ional Monttor;r,g Program. The near fieid
data will augment t'>e R99ional Monttoriflg Program as suggesled by L,e RWOCB.
• Provide data which could support other South Bay issu"s or programs such as
development of sediment qualrty standards.
The mo.,ijoring approach described below has been effect,ve in the past in
relaling changes in near field cootamination in San Francisco Bay to changes L' metal
diSCha<ges from the PARWOCP. c!&5p~e !he complexities of monttoring naturaf
systems. This historical data will provide a un;que context wMin wh ich cause and
effect can be assessed for change in the future. tt is !he autho<s' experience that
measur'ong Change in nature aga;"st a background of long term data is the single most
effective way to identity the factors that cause that Change. Tha histO<ica! data for the
Palo Atto area is one of the few data sets of tts type ever collected a.,ywhere, a rod
provides a unique opportunity to understand how investments in effluent improvements
actually affect a receiving water EHlvironment. The mon~oring eilort
also will act as a local extension ~ the Regional Mon~oring Program, which is
investing minimal effort sooth of tI1e Dumbarton Bridge. Furlhermo;e,!he ooordination
with San JoseISanta Clara and Sunnyvale RWOCP's wm provid& a regional context lor
b"lterpreting resuhs.
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3.0 Monitoring Program APpt'OBCh
The proposed approaoi1 will be 10 mon~or trace element concenlrations in fine
grained sediments arid resident populations of the deposit leedng clam Macoma
tJakhica. Sedimenl particles bind mC>5t trBce element pollutants strongiy, effICiently
removing them from the water column. Numerous prior stucrleS have shown that
analysis 01 concentrations of these pollutants in sediments provide a time-integrated
indicalor 01 trace elemen! inp~~ 10 the water column. Animals such as Milcom ..
bafthica live in contact with sediments and feed upon organic material aSSOCiated with
sedimenl particles. Thus they are exposed to this concentrated pool 01 trace eiements
and sequesler them in their lissuos. Aoaiysis 01 the tissues provides a measure of the
exposure 01 the Ofganism to oioavailable ponutants. Study 01 such explCsure is the
first slep In undllrstal'1<fong whethet ponutants are adversely affecting an enviror.ment
(a~hoogh elevated tissue concent,ations alooe do not prove an effect is occurring).
UndlIrstanding 9xplCSure in one species also can be useful in i1dlcating a larger
exposure 01 the local food web, as shown in sarli,.,. stu<fI9S at Paio Mo. Past USGS
monitoring efforts have demonstrated the value 01 the dual secfrrnenv'tissue approach,
when data are COnecled fonowing the rigorous prolocols desen-oed below.
3.1 Sampling DesIgn
3.1.1 SlImpIlng location
Samples will be ccllected from one station located north 01 Sand Point (Figure
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1). This is a mudflat 0<1 ihe shore of the bay (001 a slcugh) l1<ilometGf south of the
Palo Aho d,scharge. It was chosen because t is influenced by the discharge of the
PARWQCP. but is 001 immediately adjacen' to that discharge. Thus it reltacts a
response of receiving walers io the effluent. beyond just a measure of the effl uent
~seff. Earlier stud'",s have s.'>own thaI dyes. natural organic materials in San
Francisqu~o Creek and wastes in the POWQCP discharge an move predominanlly
scu!h loward Sand Point and t11ereby influence the mudflats in the vicinity. There are
no other substantial discharges ie. the immediate vicinity. Earlier work showed that
San Francisqu~o Creek and the Yacht Harbor were minor sources of most trace
e'ements compared to the PARWQCP. Earr"" studies also showed that intensive
mon~oMg at one s~e was more effective in determining trends in trace el9fne~t
contamination than was less frequen~ samp~rig at a larger numbs!' of sites in the
vicinity 01 the discharge.
3.1.2 Sampling frequency
The basic monHoring program supported by Palo Aha win have a sampling
frequency 01 three times per year as stipulated by the RWQCS. Sampr.ng will
CO!'respond as closely w~h RegiOnal MonHoring Program samp~ng as tides perm~.
The RMP samples once dtJ ring !he wet season. once dtJring the d<y sea son and then
again at !he end 01 the d<y season. The basic program will foilow this schedule also.
The USGS monftoring experience irKfleates thai three samples per year will be
Insufficien! 10 sens~ively track or interpret seasonality or year·to-year change in metal
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contamination. History has shown that short term evants (ef duration one \0 two
mooths) can strongly infiuence metal concentrations in se<liments and clams.
Furthermore. at! annual cycle of niax.imum a..'ld minimum concentrations occurs at the
mudflat. The precise timing of that cycle is not pf'edictabfe, Statistrcall.echnlques such
as power analyses indicate that three samples per year WIll p,ov1de a 20 percent
sensitMty in detecl:ing troods, More frequent sam~ing provides more accurate data
about trends and enhances interpretation of cause and effect in a temporaHy variable
environment (accuracy is not considered in powe, a~alysis). Thus USGS '....,11 support
supplame<1tal sampr.ng, cor.ecting samples an aO<jijiona: 5 times per year. Proposed
mooths to ir>c~cIe in sampling are May, July, August, October, December, January,
February and March; altholJ9h this schedule will be adjusted to coincide w~h the RMP.
Historic data suggests such a sell erne "'ill provide a good represenla~on of
seasonarrty. especiany the time of year when ~ntrations Bre highest and events
most likely (October Ihro'Jg.~ March). The samples from tI1e supplemental conections
will be analyzed at least for 1I1e selected const~uents that USGS has sampl8d
historicali}.
3.2 Constituents to be DcI1armIned
The constituents to be analyzed in seORllents, and associated variables. arEi
roste!! in Tab!I11. The consmuent~ and variables to be OOtermined in clam tissues are
lis1ed in Table 2. The consthuent fist is consistent with the constituents anal~'28d by
the Regional Monhoring Program. The methods employed will be adjusted so as 10
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minimize below detection flm~ determinations. The variables cimsen for determination •
are tnose that past USGS studies have shewn are essent~al to determination and
inle<p<etation of trends.
3.3 Methods
3.3.1 Sampling
Macoma bBlthica and sedim ents w,11 be collected at low tide from the exposed
mudflat. Sediment samples will be scraped from the suriace or.idized layer (<2cm
deplh)with a metal·free tool in a mannsr similar to pre~ious sediment sampling in the
area. Sediment will be collected from the sam e area as the ciams. Enough sediment
will be obIained 10 conduct all proposed analyses (Table 1) and 10 archive
approximately 10 grams for any unforeseen future needs. Approximately 40 individual
clams will be collected al eacl1 sarr:Pr"'9 time.
3.3.2 Sample preparallon
Sedimen~ will be sieved th rough 1 GO I'IIl mesh in u ~ra-clean (-18 Mohm)
deionized water immediately upon return !o the laboratory. Both the fraction of
sediment passing through the sieve and the fraction retained on the sieve will be dried
and we1g/1ed. Pa rticle size distribution wiU be defined as the proportion altha total
S9<i'ment mass dIvided between thr..e two fractions. This also provides an estimate
of \he particle size characteristics althe bull< sediment for those who might want to
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make oomparisons wi1l1 bulk Baalyses. We have conected years 01 data on <16 Ilm
fraction within tM <100 I'm fractioo (Pipe!ttl met'1od). This data ~ias no! been WHY
helpful" interpre1ing trends in metais at Palo Mo, sa thai method will net be
employed ., this program. Replicate aliquots 01 the fraction of sediment Ihat passes
tltroogh 1M 100 "m sieve will be digested by reflux wijh concentrated nijric acid to
detemnine near total concen!ra!ions. Replicate anquots of each sedimel~ will also be
extracted in O.SN hy<!rochloric acid to determine the leaenable, anihropogenic
cootributKm to the sed!men~ concentrat!oo. Standard reference materials will also be
digested with 6acl1 sedi ment digestion run.
Clams wi!1 be returned to the labexatory live, washed free of local sediment and
placed in clean ocean water diiuted with distilled wats' to the sanniiy on the mudflat at
the time of collectioo (determined from the water in the mantle cavity 01
representative ind'rvidual clams). The animals win be held for two days 10 depurate
undigested sediment. then prepared for analysis. The length of eacl1 clam will be
determ ined then the shen and soft tiSSlJe will be separated. Soft tissues will be
compos~ed into 4 - 8 composije samples, each containing animals 01 similar shen
length, and digested by n~ric acid reflux. Samples for mercury and selenium analysTs
will be compos~ed as above, and Ireeze dried before <ftg9Slion in coocootraled
nilriclperchloric acid. The above procedure will resu~ in 4 - 8 repliCate samples from
each collection lor ICP analysis and 4 samples lor mercury/selenium analysis. The
dala from these animals are nO! nomuIlly cfrstrlbuled and may be aff8Cl8d by animal
size. Correlatioos will be calculated beiween aninal size and metal conoemration;
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and established procedures will be employed to calculate metal content of a standard
sized clam for each cotlection. Previous studies show the! such data reduction
procedures are necessary to account for biological tactors (si~e and growth) that afled
metal COIlCen!ratioos, mus anowing a clearer linkage cetween PARWQCP discharges
and r.sponses of the cia",s, .
3.3.3 AnalyUcal methods
0igested tissue and sediment samples will be evapora!ed to dryness and
reconstij"ted in O.6N hydrochioric acid. Most .'em",,!s wi!1 be analyzed by Inductively
Coupled Plasma Emissioo Spectroscopy r,CP Of ICAPES)(Tabls 1 and 2). Exceptioos
will include cadmium and silver in sediments, which occur at low concentrations and
will be dele"" ined by GrapMa Furnace Atom ic Abs~:ption Spectrophotometry
(GFAAS) with Zeeman background correclion. The standaltl adcfrtions technique win
be employed as necessary in these analyses. Meroury and selenium wi~ be
de!ennined in both sediment and clam tissues by Hyd<ide Atomic Absorption
Spectrophotometry.
An glassware and field conection apparalus will be acid washed, thoroughly
rinsed in u~ra-crean deionized waler, dr'.ed in a dust-free posrtive pressure
environment, sealed and stored in a dust lree cabinet QuaJ:'Iy control will be
maintained by frequent analysis of blanks, analysis 01 National Institute 01 Standards
and Technology standart! reference materials (tissues and searnents) with each
analytical run, and internal comparisons with prepared quanly control standards. A
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run QAIQC pian is available upon request. Typical detection limijs for each eiemen!. in
the malrix we ar& sampling. are shown in Tabla 3 and c-Ompared 10 "background" (the
10_) concentrations found in San Franciscc Bay_
3.4 Data Analysis
Oata will be summarized and repo.ted to Palo AKo annuaHy. A,nual reporting
will be consistent with Regional Mon~oring Program reponing tormat and will be
coordinated ~h the receiving water m on~oring prog rams 01 the San Jose/Santa Clara
wpcp and the Sumyvale WPCP. Data appendices will be included that show basic
analytical and computational data_ The data report wm include fIQurss and tables tMt
express each yeMs mon~oring data w~hin the context of historical change as
obse<ved siooe. 1976 and within the preceding -five years.
4.0BudgeI
The ~ for the proposed project is outnned in detwl in Tabl9 4. This budget
includes charges only lor 1he basic monftoring program of 3 collections per year.
USGS wiH match this support by supporting the add~;ona! coIlectiOl1' in each year.
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SOUTH BAY
Son
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Km Mile
PIGlJi.E I. SAKFLIlIC STATtON FOR. NUB. FII'LI) MOJrflTORUC ADJACR1IT 'TO THE
PAM ALTO 1IAl'EJl QUALITY COKTIIOL 1'1.UT.
Tabla 1. Activities. constituents and variables In near field monitoring of fine
gralned sadlmen18 a1 Palo A/tO.
Activity Method Additional Frequency
actlvlUas
Schedule logistics ely
Field Collections Intertidal Sly
Seerment -Particle size >100 urn & sieVG from ely
<100 urn field
Sediment -He! + Total IC? Extract Of Sly
digest
AI
Fe
Mn
Ct
Cu
Pb
Nl
Zn
Se<fornent -He! + Total GFAAS Usa above 8Iy
eXlrac1S
Cd
Ag
Sedime<1! -Hg & Sa Hydride Freeze dry. 31y
(totaQ 9,i/ld
TOC Total C -GO dry arlQuet ely
Archive sediment Sen vial dry Sly
Assemble deta Common Sly
spreadsheet
Annual Report Commoo Ify
Ionnat
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Tabla 2. ActivitIes, constituents and t'llrlablllB In near field monitoring of metals
In tile bivalve, Macoma balthlca at Palo Alto.
Activity MethOd Addittonal Frequency
Fieid CoRee! lep metals FiViduats Sly
Hg&Se 20 individuals 3/'1
cleM. depurate. As above as above-Sly
dissee!. size, dlY.
weigh
Whole TIssues lep digest elc Sly
Fe
Mn
Cd
Cr
Cu
Pb
Ni
Ag
Zn
Whole 1issues Hydride freeze dry
Hg
Se
Cor.<fl!ion Calculate
index/content
Assemble data ICommon--Sly
spreadsheet
Annual Report Common Format tty
15
.~.
-,':;;
T8I)I& 3. o.tecIIOn IImf111 for cGnstituent& to ~ detennlrMd In Palo Alto
monitoring study.
Element Q.etectig!J
Cd 0.05
I;( 1,0
Cu 1.0
Pb 1.0
Hg 0.1
Ni 1.Q
Sa 0.1
Ag 0.05
Zn 10
TOC 0.1% ----------------------'Determined from pr6ol850 sediments f.om COfes.
16
83Ck9'ooOO in SF Bay'
0.2
1().2Q
5-20
01
>40
0.1
0.1
>40
0.3%Io_t
€if) 3~ ,
'...;;;,
Table 4-Budge! lot Palo Alto Inshore mon Itorlng program In cIoIlans. •
tlCl1V!TY SALARY SUPPLIES ANAL YSES MISCEUANEQUS
Field WOO< 3,120 550
Sample preparation 3,985 1,000
ICP AnalyseS 1,695 1,000
M&lCUrylSeler.ium 2,400
GFMS 896
Total Organic Carbon 736
Reduce & Assembie
data 2,801
Instrument Mainlenance 1,500
and RepaIr
FUlal Repo;1 3,333
SUBTOTALS 15,830 2,550 3,136 1,500
TOTAL DIRECT COSTS $23,016
INDIRECT COSTS $5.409
TOT&, !<QSTS $28,425