FROM: Robert Thompson, General Manager
Originator: Mike Dorman, Director of Engineering
SUBJECT:
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CENGEN INSTRUMENT AIR COMPRESSORS REPLACEMENT AT PLANT NO. 1, PROJECT NO. FE18-06
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GENERAL MANAGER'S RECOMMENDATION
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RECOMMENDATION: Recommend to the Board of Directors to:
A. Receive and file Bid Tabulation and Recommendation for CenGen Instrument Air Compressors Replacement at Plant No. 1, Project No. FE18-06;
B. Award a Construction Contract Agreement to LEED Electric, Inc., for CenGen Instrument Air Compressors Replacement at Plant No. 1, Project No. FE18-06, for a total amount not to exceed $911,678; and
C. Approve a contingency of $91,168 (10%).
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BACKGROUND
Orange County Sanitation District (OC San) owns and operates two wastewater treatment plants. Both facilities include a plant air system that supplies high-pressure air (HPA) for plant processes, tools, and chemical truck delivery systems, as well as an instrument air (IA) system that supplies compressed air for pneumatic instruments and actuators. At Plant No. 1 the Central Generation system (CenGen) supplies supplemental power to process areas in addition to standard utility power. The systems supporting CenGen operations require compressed air with reduced moisture and oil content to ensure reliable operation.
In 2016, OC San completed a master planning study to evaluate the HPA/IA system and determine whether the existing piping systems had sufficient capacity to meet plant air demands at each facility.
RELEVANT STANDARDS
* Protect OC San assets
* Comply with California Public Contract Code Section 2103.8, award construction contract to lowest responsive, responsible bidder
* Maintain a proactive asset management program
PROBLEM
The conclusion of the master air planning study recommended that the existing 10-horsepower instrument air compressors and associated treatment systems in the Plant No. 1 CenGen basement were undersiz...
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