FROM: Robert Thompson, General Manager
Originator: Mike Dorman, Director of Engineering
SUBJECT:
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HEADWORKS ELECTRICAL DISTRIBUTION IMPROVEMENTS AT PLANT NO. 2, PROJECT NO. P2-141
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GENERAL MANAGER'S RECOMMENDATION
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RECOMMENDATION: Recommend to the Board of Directors to:
A. Approve a project budget increase of $11,848,000 for Headworks Electrical Distribution Improvements at Plant No. 2, Project No. P2-141, for a total project budget of $46,500,000;
B. Approve a Progressive Design-Build Contract with Big Sky Electric, Inc./Filanc, a Joint Venture, to provide Phase 1 progressive design-build services for Headworks Electrical Distribution Improvements at Plant No. 2, Project No. P2-141, for an amount not to exceed $3,902,200; and
C. Approve an upper limit for this Contract of $39,710,000, which includes contingency.
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BACKGROUND
The headworks of a wastewater treatment plant is where incoming sewer flows converge through a series of pipes, meters, flow diversions, and gates as part of the preliminary treatment process. At Orange County Sanitation District's (OC San) Reclamation Plant No. 2, the headworks blends sewage from four trunk lines before it enters the treatment process.
Distribution Center H (DC-H) at Plant No. 2 houses the electrical distribution equipment
that provides power and control to the headworks facilities through its switchgear and motor control centers. Power and control cables from DC-H are routed to the headworks process areas through an underground duct bank system that connects the various facilities.
RELEVANT STANDARDS
* 24/7/365 treatment plant reliability
* Ensure the public's money is wisely spent
* Maintain a culture of improving efficiency to reduce the cost to provide the current service level or standard
PROBLEM
Over the past five years, several critical pieces of equipment at the headworks facilities have experienced shutdowns due to a steadily increasing ...
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