FROM: James D. Herberg, General Manager
Originator: Kathy Millea, Director of Engineering
SUBJECT:
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NATURAL GAS PIPELINES REPLACEMENT AT PLANT NOS. 1 AND 2, PROJECT NO. J-127
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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 Natural Gas Pipelines Replacement at Plant Nos. 1 and 2, Project No. J-127;
B. Reject the bid from apparent low bidder, Well Anchored Inc., as non-responsive;
C. Award a Construction Contract to Innovative Construction Solutions for Natural Gas Pipelines Replacement at Plant Nos. 1 and 2, Project No. J-127, for a total amount not to exceed $745,500; and
D. Approve a contingency of $74,550 (10%)
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BACKGROUND
The natural gas systems at Orange County Sanitation District's (Sanitation District) Plant Nos. 1 and 2 feed onsite services including buildings and plant processes, as well as the Central Generation systems which utilize both natural gas and digester gas to produce electric power. Over time, the natural gas piping system has been built, modified, and expanded by various projects.
RELEVANT STANDARDS
* Maintain a proactive asset management program
* Comply with California Public Contract Code Section 20103.8, award construction contract to lowest responsive bidder
PROBLEM
Recent condition assessments of the current natural gas piping have revealed that some of the metallic piping and risers have reached the end of their useful life due to corrosion.
PROPOSED SOLUTION
Award a construction contract for replacement of Natural Gas Pipelines Replacement at Plant Nos. 1 and 2, Project J-127. The project will replace approximately 2,000 feet of buried steel pipe and risers. This work will include replacement of defective valve vaults that allow standing water to corrode pipe and valves and will add electrical isolation to wall penetrations to prevent cathodic corrosion...
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