FROM: Robert Thompson, General Manager
Originator: Mike Dorman, Director of Engineering
SUBJECT:
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WETWELL LEVEL MONITORING UPGRADE AT COLLECTIONS PUMP STATIONS, PROJECT NO. FE23-03
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GENERAL MANAGER'S RECOMMENDATION
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RECOMMENDATION: Recommend to the Board of Directors to:
A. Find that the proposed actions are categorically exempt from the California Environmental Quality Act (CEQA) pursuant to CEQA Section 15301 (Existing Facilities);
B. Receive and file Bid Tabulation and Recommendation for Wetwell Level Monitoring Upgrade at Collections Pump Stations, Project No. FE23-03;
C. Approve a project budget increase of $348,000 for Wetwell Level Monitoring Upgrade at Collections Pump Stations, Project No. FE23-03, for a new total budget of $3,008,000;
D. Award a Construction Contract to LEED Electric, Inc., for Wetwell Level Monitoring Upgrade at Collections Pump Stations, Project No. FE23-03, for a total amount not to exceed $1,517,948; and
E. Approve a contingency of $151,795 (10%).
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BACKGROUND
Orange County Sanitation District (OC San) operates collection pump stations that use wetwell level monitoring to control pump operation. Crystal Cove, Edinger, MacArthur, Main Street, and Slater Pump Stations currently use bubbler panels for wetwell level monitoring. Reliable wetwell level monitoring is critical to proper pump station operation.
RELEVANT STANDARDS
Less than 12 events for the collection system, under normal operations
Achieve less than 2.1 sewer spills per 100 miles
PROBLEM
The existing pump stations utilize a single bubbler panel to monitor wetwell levels and control pump station operations. These bubbler panels are aging and require significant maintenance to remain operational. The continued reliance on this aging equipment increases the risk of equipment failure and loss of reliable wetwell level monitoring, which could impact pump station operations.
The curre...
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