FROM: James D. Herberg, General Manager
Originator: Kathy Millea, Director of Engineering
SUBJECT:
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TRUCKLINE SAMPLER POWER FEED AT PLANT NO. 2, PROJECT NO. FE18-17
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GENERAL MANAGER'S RECOMMENDATION
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RECOMMENDATION:
A. Receive and file Bid Tabulation and Recommendation for Truckline Sampler Power Feed at Plant No. 2, Project No. FE18-17;
B. Award a Construction Contract to M. Brey Electric, Inc. for Truckline Sampler Power Feed at Plant No. 2, Project No. FE18-17, for an amount not to exceed $101,050; and
C. Approve a contingency of $20,210 (20%).
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BACKGROUND
The Orange County Sanitation District (Sanitation District) monitors influent wastewater as required for regulatory compliance, operational reporting, and process control. The Sanitation District's Resource Protection Division also conducts monthly sampling of major trunk lines to detect if certain contaminants are present in inappropriately high concentrations and, if so, where they may be originating. That information would be used for subsequent investigation of industrial discharges.
RELEVANT STANDARDS
* Comply with California Public Contract Code Section 20103.8, award construction contract to lowest responsive, responsible bidder
* Commitment to safety & reducing risk in all operations
PROBLEM
There are four locations for trunkline sampling at Plant No. 2 that do not have a power supply within reach of the automated, refrigerated samplers needed for the 24-hour composite samples. Battery-operated samplers are used instead, but they require labor-intensive replacement of batteries on the sampling day, and the sampling pumps do not have enough capacity to clear sampling line clogs. These problems impact the reliability of trunkline monitoring.
PROPOSED SOLUTION
Award a construction contract for Trunkline Sampler Power Feed at Plant No. 2, Project No. FE18-17, to route buried duct banks and provide 120-volt power receptacles at the ...
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