FROM: James D. Herberg, General Manager
Originator: Kathy Millea, Director of Engineering
SUBJECT:
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ENGINE AND GENERATOR OVERHAULS AT PLANT NO. 1 AND 2, PROJECT NO. J-135B
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GENERAL MANAGER'S RECOMMENDATION
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RECOMMENDATION:
A. Award a Sole Source Service Contract to Cooper Machinery Services LLC for Engine and Generator Overhauls at Plant No. 1 and 2, Project No. J-135B, for a total amount not to exceed $29,361,029; and
B. Approve a contingency of $2,936,103 (10%).
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BACKGROUND
In the early 1990s, Orange County Sanitation District (OC San) installed eight internal combustion engines manufactured by Cooper Bessemer at the Central Generation (Cen Gen) facilities at Plant Nos. 1 and 2 to generate electricity using digester gas. During normal operating conditions, the Cen Gen facilities supply approximately 60% of the electricity at Plant No. 1 and 95% of the electricity at Plant No. 2.
OC San staff performs routine and regular maintenance based on hours of runtime per the manufacturer's recommendations. Complete overhaul of an engine is needed after 120,000 hours of runtime. A complete overhaul was successfully completed recently by Cooper Machinery Services LLC (Cooper) for an engine at Plant No. 1 after a series of failures by another vendor.
Cooper holds the original equipment manufacturer (OEM) proprietary part fabrication information and service "know-how" to rebuild these legacy machines. Machining fabrication problems in non-Cooper supplied parts and reassembly technique errors led to catastrophic engine failure during the initial run-in period for a prior vendor.
RELEVANT STANDARDS
* Protect OC San assets
* Maintain a proactive asset management program
* 24/7/365 treatment plant reliability
* Comply with environmental permit requirements
* Use all practical and effective means for resource recovery
PROBLEM
Of the seven remaining engines that have not been completely overhauled, four are show...
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