FROM: Robert Thompson, General Manager
Originator: Mike Dorman, Director of Engineering
SUBJECT:
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OCEAN OUTFALL SYSTEM REHABILITATION, PROJECT NO. J-117
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GENERAL MANAGER'S RECOMMENDATION
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RECOMMENDATION:
Approve a contingency increase of $727,933 (8.5%) to the Professional Construction Services Agreement with Brown and Caldwell for Ocean Outfall System Rehabilitation, Project No. J-117, Outfall Low Flow Pump Station, Contract No. J-117B, for a new total contingency not to exceed $1,584,324 (18.5%).
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BACKGROUND
Orange County Sanitation District's (OC San) Ocean Outfall System Rehabilitation, Project No. J-117, has two construction contracts. The second and final construction contract is the Outfall Low Flow Pump Station, Contract No. J-117B, which will construct a new Outfall Low Flow Pump Station and rehabilitate the existing Ocean Outfall Booster Station. The contract also includes construction of a new plant water pump station required to separate reclaimable and non-reclaimable flows to support OCWD's reclamation of Plant No. 2 effluent, the replacement of several 12kV switchgear lineups at the heart of the Plant No. 2 power distribution system, construction of an electrical SCADA System similar to Plant No. 1, and network upgrades.
Brown and Caldwell is currently under contract to provide professional construction services to support the construction of Contract No. J-117B.
RELEVANT STANDARDS
* Ensure the public's money is wisely spent
PROBLEM
The level of effort assumed in the Professional Construction Services Agreement included assumptions such as the number of resubmittals, requests for information (RFIs), and design changes due to unexpected field conditions. These assumptions were based on the best available information and experience from past projects. Due to project complexity, the effort to support these items has been higher than past projects. The level of effort to complete the job is projec...
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