FROM: Robert Thompson, General Manager
Originator: Mike Dorman, Director of Engineering
SUBJECT:
title
ENGINE AND GENERATOR OVERHAULS AT PLANT NO. 1 AND 2, PROJECT NO. J-135B
end
GENERAL MANAGER'S RECOMMENDATION
recommendation
RECOMMENDATION:
Approve a contingency increase of $711,765 to the existing Sole Source Service Contract with Cooper Machinery Services LLC for Engine and Generator Overhauls at Plant Nos. 1 and 2, Project No. J-135B, as part of Central Generation Engine Overhauls at Plant Nos. 1 and 2, Project No. J-135, for a new total contingency of $5,284,985 (18%).
body
BACKGROUND
In the early 1990s, Orange County Sanitation District (OC San) installed eight internal combustion engines manufactured by Cooper Bessemer at the Central Generation (CenGen) facilities at Plant Nos. 1 and 2 to generate electricity using digester gas. During normal operating conditions, CenGen facilities supply approximately 60% of the electricity at Plant No. 1 and 95% of the electricity at Plant No. 2.
In July 2022, a Sole Source Service Contract was awarded to Cooper Machinery Services LLC for Engine and Generator Overhauls at Plant No. 1 and 2, Project No. J-135B. The work under this contract overhauls four engines and refurbishes five generators.
RELEVANT STANDARDS
* Maintain a proactive asset management program
* Comply with environmental permit requirements
* Use all practical and effective means for resource recovery
PROBLEM
The original contract called for the overhaul of four engines, with all parts disassembled and inspected, however, only specific parts were to be replaced based on their estimated remaining useful life. During the overhaul of the first two engines, additional components outside the original scope were found needing replacement or repair. While the original contract did include one new set of pistons and one camshaft re-lobe, these parts are needed for each engine. Change orders have already been issued to cover the compl...
Click here for full text