By Chris Frost
Oxnard—The Public Works and Transportation Committee endorsed awarding a contract to GI Endurant, LLC for the Oxnard Wastewater Treatment Plant Cogeneration Engine Refurbishment Phase II during its June 11, meeting.
The contract amount is for $499, 632, and an additional $49, 963 for contingencies and 49,963. They also approved $49,963 for engineering, inspection, survey, and project management and approved an appropriation of $358,349 for the Oxnard Wastewater Treatment Plant Cogeneration Engine Refurbishment Phase II.
Interim City Engineer Tatiana Arnaout gave the presentation and said the project is part of the city’s five-year Capital Improvement Plan.
“How that’s produced at the Cogen plant is that 35 percent of that was installed in 1975 and because of their age, the units require maintenance and have become unreliable,” she said. “On two occasions in 2017, the treatment plant lost power while the Cogen plant was offline due to failures that are coming from deferred maintenance.”
The failures cause the power plant to bypass the secondary treatment process, she said, which resulted in regulatory violations.
“This contract is for the second phase of the overhaul for the third and final cogen engines,” she said. “It’s going to start in Oct. and the reason why we are holding off on this is because in the summer months that’s our peak season for energy consumption. We want to keep all three engines running during the summer and then come back after peak season to go offline and do the actual refurbishment.”
The city only received one bid for the project, Arnaout said, and she doesn’t think re-bidding the project will work because it is specialized work.
“The total estimated project cost for this is just under $600,000,” she said. “To make up for the difference, we have some money in the project budget already, and we need another $358,000 from the wastewater operating fund to fill the need.”
Committee Chairman Bert Perello asked how much a new cogen would cost and Arnaout said it would cost twice as much or more.
“That doesn’t assume that you might need a whole other building to house the cogen engines which would exceed that even more so,” she said. “We have a one-year warranty after acceptance. We get it running, and we let it run for at least two weeks, and if nothing happens, usually catastrophic failures happen in the first two weeks, and after that period, we accept the engine and the warranty starts.”
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