HomeMy WebLinkAbout2007-05-21 Ordinance 4950ORDINANCE NO. 4950
ORDINANCE OF THE COUNCIL OF THE CITY OF PALO ALTO
APPROVING AND ADOPTING PLANS FOR IMPROVEMENTS TO
TIMOTHY HOPKINS CREEKSIDE PARK
The Council of the City of Palo Alto does ORDAIN as follows:
SECTION 1. Findings. The City Council finds and declares that:
(a) Article VIn 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 building, construction,
reconstruction or development is commenced or approved, upon or with respect to any land held
by the City for park purposes, the Council shall first cause to be prepared and by ordinance
approve and adopt a plan therefor.
(b) Timothy Hopkins Creekside Park is dedicated to park purposes.
(c) The City intends to authorize construction of certain improvement projects
within John Hopkins Creekside Park as shown on the Hopkins Park Well Site and Hopkins Park
Well Rehabilitation Plan (collectively "Plans") attached as Exhibits "A-I" and "A-2" including,
without limitation, the following:
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(1) Rebuilding and upgrading the existing Hale well, including repair or
installation of a new well casing, pumps, motors, and controls;
application of architectural, landscaping and soundproofing
treatments; and replacement of the existing fence; and lighting.
(2) Clearing of vegetation and trimming of existing trees in accordance
with City policies and as necessary to provide equipment access for
construction.
(3) Connection to the storm drain or sanitary sewer system, or both, if
feasible, via an underground pipe from the well site to the public
right-of-way.
(4) If rehabilitation of the existing well is not feasible, a new well will be
constructed within the site. New well construction activities may
include: drilling of a production borehole; construction of the well
(including well casing, pumps, motors, and controls); development of
the well (including pump testing); installation of architectural,
landscaping, and sound-proofing treatments, piping, mechanical and
electrical equipment and lighting; replacement of the existing fence;
and installation of new connections to the existing distribution
system.
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(d) The improvements at Timothy Hopkins Creekside Park will be limited to
well facilities located within the existing fenced area. No modifications or alterations will be
made to the exterior of the existing pump house structure.
(e) The project improvements will avoid riparian areas, protected trees and other
sensitive resources. In addition, existing park uses will be restored following project
construction.
(f) The projects described above and as more specifically described on the Plans
attached hereto as Exhibits "A-I" and "A-2" are consistent with park and conservation purposes.
(g) The Council desires to approve the projects described above and as more
specifically described on the Plans attached hereto as Exhibits "A-I" and "A-2".
SECTION 2. The Council hereby approves the Plan for replacement and
construction of improvements in Timothy Hopkins Creekside Park and hereby adopts the Plans
attached hereto as Exhibits "A-I" and "A-2" as part of the official plan for the construction of
improvements in Hopkins Park.
SECTION 3. The Council finds that the projects to construct new facilities at
Hopkins Park are subject to review under the California Environmental Quality Act (CEQA) A
Draft Environmental Impact Report for this project was prepared and circulated on November 8,
2006, and a Final Environmental Impact Report for this project was prepared and circulated On
February 8,2007.
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SECTION 4.
date of its adoption.
This ordinance shall be effective on the thirty-first day after the
INTRODUCED: March 05, 2007
PASSED: May 21,2007
AYES: BARTON, BEECHAM, DREKMEIER,
MORTON, MOSSAR
NOES:
ABSENT:
ABSTENTIONS: CORDELL, KLEIN, KLEINBERG
APPROVED AS TO FORM:
l ~1\1 J Ba(\~ ~Lt City Attome\l
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KISHIMOTO,
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Photo 1 : View of Hale Well site looking west from Palo Alto Avenue
Photo 3: View of Hale Well site looking east from Timothy Hopkins
Creekside Park
Photo 2: View of Hale Well site looking northeast from Palo Alto Avenue
Photo 4: Direct view of Hale Well site looking northeast from Hale Street
Exhibit A-1
HOPKINS PARK WELL SITE
CITY OF PALO ALTO
Exhibit A-2
HOPKINS PARK WELL REHABILITATION PLAN
The proposed Emergency Water Supply and Storage Project (project) is intended to correct the
deficiency in the City's emergency water supply, when compared to the standards recommended
by the Department of Health Services (DHS). Implementation of the proposed project includes
rehabilitation of the existing Hale well at Timothy Hopkins Creekside Park (Hopkins Park).
The proposed project design is preliminary and the final project facility design would incorporate
input from the public (including property owner and neighbors) received throughout the project
planning and environmental review process. The final project design will be subject to review by
the City of Palo Alto Architectural Review Board to ensure that project design is consistent with
that of the surrounding community.
Hopkins Park Well
Introduction
The existing Hale Well site is located within Timothy Hopkins Creekside Park (Hopkins Park)
between San Francisquito creek and Palo Alto A venue. The existing pump house is a tile roofed
edifice and has been identified as an historic property eligible for the National Register). A
residential area known as Crescent Park is located directly across. Hopkins Park is a 12.4-acre
strip of land that meanders along the creek. It is located along Palo Alto Avenue, from EI Camino
Real to Middlefield Road. There are three open grassy areas with benches and tables.
The existing well and associated building are fenced from adjacent public uses. The Hale Well
site consists of an existing well, pump house, and old circular discharge reservoir. The Hale site
has no extemallighting. The well was drilled in 1955 to a depth of 935 feet, with a 14 inch steel
casing. The well is currently operational. Performance data collected since the time of
construction suggest a current discharge rate of 1,425 gallons per minute.
Under the proposed project, the Hale well will be rehabilitated to increase its production capacity
and improve the well site reliability in accordance with the City's Emergency Water Supply and
Storage Project.
Proposed Well Rehabilitation ActIvItIes
Prior to rehabilitation, the well would be inspected and the scope of the required well rehabilitation
effort would be identified depending on its condition. Upgrade of existing wells would include
repairing or installing a new well casing, pumps, motors, and controls. Appurtenances required
could include piping, valves, and meters. No upgrade or reconstruction of the small historic
building will be required, rehabilitation activities are limited to the internal structure of the pump
house. Other construction related activities would include some site-clearing activities, upgrades to
the electrical service, and architecturalflandscapinglsound proofing treatments. The project would
avoid riparian areas and areas with identified sensitive resources to the extent possible.
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Lighting would be provided similar to existing conditions, and would be dependent on the
location of the facility, security requirements, public input and per City, DHS and other
requirements. If external lighting is required, motion sensor lighting would be installed. The
existing fencing would be replaced with the City's current standard fencing 8 foot high minimum,
PVC black coated, special security type chain link steel fencing, with a locked entrance gate.
Because the rehabilitation activities would increase the volume of water produced at each well,
modification to the existing water distribution system could be required. Potential modifications
include moving the existing groundwater well piping connection point to the distribution system to
a different location or increasing the number of pipes connecting the groundwater system to the
distribution system in order to dissipate the pipe velocities.
While construction activities would primarily be located within the fenced well site, construction
vehicles and equipment could be located within recreational use areas during the construction
period.
Following completion of well construction activities, construction work areas and staging areas
would be regraded, contoured, and returned to conditions and uses similar to that prior to
construction activities or as desired by the local community. Bare ground would be seeded with
native plant species or plantings. Following pipeline construction, disturbed areas would be
restored to conditions similar to those prior to pipeline construction.
Construction Schedule
Well rehabilitation activities would require approximately four to six months to complete if the
well casing is in good condition and only the well pump needs to be replaced. If the well casing
needs to be replaced, however, the construction activities will mimic those for a new well, as
described for Eleanor Pardee Park for example, which would require approximately 25 months.
The overall project (including preliminary design, design, and construction) may last up to 47
months, if replacement of the existing well is required. Actual installation time could vary
depending on geologic and site conditions. Construction, with the exception of the 24-hour
drilling/well testing, would likely occur during weekdays from 8:00 a.m. to 5:00 p.m.
Anticipated Results
The anticipated benefits of this rehabilitation include:
.:. The ability to meet the Emergency Water Supply and Storage Project's objective to provide a
supplemental water supply during "emergency" conditions through providing 11,000 gallons
per minute of reliable well capacity and 2.5 million gallons of water storage for emergency use
in Pressure Areas 1,2 and 3. Rehabilitation of the Hale Well would support this objective by:
~ Increasing the production capacity of the Hale well to 2,300 gpm.
~ Increasing the reliability of the Hale well for emergency purposes.
~ Producing chloraminated water that is compatible with the water in the distribution system.
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