HomeMy WebLinkAbout07/18/2006, C7 - ALRITA PUMP STATION REPLACEMENT PROJECT (ter
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July 18,2006
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CITY OF SAN LUIS O B I S P O
FROM: John Moss, Utilities Director�� \�>
Prepared By: Dan Gilmore,Utilities Engine
SUBJECT: ALRITA PUMP STATION REPLACEMENT PROJECT
CAO RECOMMENDATION:
1) Approve the plans and specifications for the Alrita Pump Station Replacement Project,
Specification No. 90234B, and authorize staff to advertise for bids.
2) Authorize the CAO to award the contract if the lowest responsible bid is within the engineer's
estimate of$419,800.
3) Authorize the transfer of up to $116,000 to the project account from the Water Distribution
Master Plan Implementation account.
DISCUSSION:
The Alrita Pump Station was originally built in 1958. The hydropneumatic pump station boosts
the water pressure to approximately 12 homes on Ahita Street, above Flora Street near Laurel
Lane. The Ahita Pump Station has become unreliable, resulting in increased maintenance
requirements. The existing pump station has two pumps, each capable of providing 100 gallons
per minute (gpm). Even the combined flow of both pumps falls substantially short of the Fire
Department goal of 1,500 gpm minimum fire flow for this area.
The Alrita Pump Station is proposed to be replaced in order to reduce maintenance requirements,
enhance reliability, and increase fire flows. Providing increased fire flows is especially
important, as this area is also a wildland interface.
On August 19, 2003, Council approved the Request for Proposals (RFP) for the design of the
Ahita Pump Station Replacement Project. Through the RFP process, Boyle Engineering was
selected to prepare the design of the pump station replacement.
Boyle Engineering has completed the design, and the project is ready to be bid. The new pump
station will be larger, allowing for a dedicated fire pump that will provide 1,500 gpm of fire flow.
The building will be split face masonry block, which will improve sound attenuation while
maintaining the character of the surrounding neighborhood. .
Approval of the CAO Recommendation will allow staff to advertise the project plans and
specifications for competitive bid. Due to the length and highly technical nature of the bid
documents, they have not been copied with this report. However, they are available in the
Council Reading File and on-line-at www.slocity.or-g/cityclerk/agendas/counci].asp. r
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Alrita Pump Station Replacement—Approval of Plans and Specifications Page 2
FISCAL IMPACT:
Funding for the Alrita Pump Station Replacement Project is included in the 2003-05 Financial Plan,
Appendix B—Capital Improvement Plan,page 68. A total of$470,000 was originally budgeted for
this project. The design and right-of-way acquisition ultimately cost a total of$128,000, leaving
$342,000 to support construction. Since construction is expected to cost $458,000, the difference
of$116,000 is proposed to come from the Water Distribution Master Plan Implementation account,
which currently has an available balance of $513,924. Once bids are received, a Budget
Amendment Request will be prepared to move the appropriate amount of money into the specific
project account at the time of contract award. If this results in inadequate budget to fund remaining
projects in the Water Distribution Master Plan Implementation program, those projects will be
deferred or staff will return to Council with funding alternatives.
Project Costs:
Design $128,000
Construction (Engineer's Estimate) $419,800
Construction Contingencies (9%) $38,200
Total $586,000
Project Funding:
Original Budget(2003-05 Fin. Plan) $470,000
Additional Funding(from Master Plan hnpl.) $116,000
Total $586,000
ALTERNATIVES:
Defer or delay the project. This alternative is not recommended, since the pump station has
become unreliable,requires an increasing amount of maintenance, and currently provides fire flows
that are less than desirable.
CONCURRENCE:
Public Works has reviewed the bid documents and concurs with the CAO recommendation. The
Community Development Department has filed the appropriate environmental document, and
concurs with the recommended action.
COUNCIL READING FILE:
Alrita Pump Station Replacement Project Plans and Specifications
G:\CAR-CAO Reports\2006 Council Agenda ReportsWlrita Plans and Specs CAR
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