FROM: James D. Herberg, General Manager
Originator: Kathy Millea, Director of Engineering
SUBJECT:
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BAY BRIDGE PUMP STATION VALVE REPLACEMENT, PROJECT NO. FRC-0002
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GENERAL MANAGER'S RECOMMENDATION
recommendation
RECOMMENDATION:
A. Receive and file Bid Tabulation and Recommendation for Bay Bridge Pump Station Valve Replacement, Project No. FRC-0002;
B. Award a Service Contract to Innovative Construction Solutions for Bay Bridge Pump Station Valve Replacement, Project No. FRC-0002, Specification
No. S-2020-1192BD, for a total amount not to exceed $598,000; and
C. Approve a contingency of $59,800 (10%).
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BACKGROUND
The Orange County Sanitation District (Sanitation District) owns and operates pump stations and a force main network along Pacific Coast Highway in Newport Beach. The Bay Bridge Pump Station was originally constructed in 1965 and is at the end of its useful life. Bay Bridge Pump Station Replacement, Project No. 5-67, is in design and scheduled to replace the pump station by 2027. Some equipment, such as isolation valves, are in urgent need of replacement and cannot wait until the new pump station is commissioned in 2027.
RELEVANT STANDARDS
* Comply with California Public Contract Code Section 20103.8: Award service contract to lowest responsive, responsible bidder
* Achieve less than 2.1 sewer spills per 100 miles
PROBLEM
To perform pump maintenance and repairs, maintenance crews rely on isolation valves between the wet well and a pump, and between a pump and the discharge header. These valves are at the end of their useful life and there is an immediate risk that a valve might fail open, which would prevent a pump from being repaired, or fail close, which would prevent a pump from going back into service. Such a failure in a wet weather event could cause a sewer spill. The poor condition of these valves requires them to be replaced prior to the Bay Bridge Pump Station Replacement Project.
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