FROM: James D. Herberg, General Manager
Originator: Kathy Millea, Director of Engineering
SUBJECT:
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BAY BRIDGE PUMP STATION REPLACEMENT, PROJECT NO. 5-67
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GENERAL MANAGER'S RECOMMENDATION
recommendation
RECOMMENDATION: Recommend to the Board of Directors to:
Approve a contingency increase of $1,784,250 (25%) to the Professional Design Services Agreement with Arcadis U.S., Inc. for Bay Bridge Pump Station Replacement, Project No. 5-67, for a total contingency of $2,497,950 (35%).
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BACKGROUND
The Bay Bridge Pump Station and associated force mains were constructed in 1966 on Pacific Coast Highway just east of the Newport Back Bay Channel. The two force mains cross the channel and connect to the existing Newport force main network. The capacity is approximately 18 million gallons per day, which handles over half of Newport Beach's wastewater.
The pump station is space limited and bounded on three sides by a proposed three-story, mixed-use development, and bounded on the south side by Pacific Coast Highway. Part of the existing site was lost when Pacific Coast Highway was rerouted in the late 1980s to accommodate a new Bay Bridge. Additional real estate is required to replace the pump station to meet current safety and environmental requirements which includes improved odor treatment systems.
RELEVANT STANDARDS
* Achieve less than 2.1 sewer spills per 100 miles
* Operate and maintain facilities to minimize impacts on surrounding communities, including odor, noise, and lighting
* Ensure the public's money is wisely spent
PROBLEM
The pump station is over 50 years old and is at the end of its useful life. The Orange County Sanitation District (Sanitation District) began planning efforts for its replacement in 2014 with a long series of discussions, negotiations, and changes in how the adjacent property would be developed.
In 2017 with the cooperation of the adjacent property owner, the Sanitation District completed a Siting Stud...
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