To: Honorable Mayor and Members of City Council
From: Phil Brun, Utilities Director
Prepared By: Joy Eldredge, Deputy Utilities Director
TITLE:
Title
Emergency Shoring and Excavation for the 36-inch Water Transmission Main Leak Repair
LABEL
RECOMMENDED ACTION:
Recommendation
Adopt a resolution: 1) determining there is a need to continue the emergency action to execute and implement contracts for the 36-inch water transmission main leak repair; 2) approving a transfer of $250,000 from Water Fund Emergency Reserves to water transmission expenditure budget as documented in Budget Adjustment No. BE2102504; and 3) determining that the actions authorized by this resolution are exempt from CEQA.
Body
DISCUSSION:
The City of Napa Utilities Water Division operates three water treatment plants and maintains 350 miles of pipe to provide potable drinking water to more than 80,000 persons in the City of Napa and unincorporated Napa County. Our pipe network consists of transmission mains that are greater than 12 inches in diameter up to and including 42-inch pipes. The 1967 bond issuance facilitated construction of over 17 miles of predominantly 36-inch transmission main to convey water from the Barwick Jamieson Treatment Plant to the City of Napa at West Pueblo Avenue where it connects to the 36-inch transmission main that carries water to the City of Napa from Lake Hennessey since 1948.
Currently there is a leak that has developed on a section of the 36-inch pipeline that is critical to providing reliable water service to customers throughout the system. The leak is near the Napa Sanitation District and is challenging to access and specialty services and equipment are required to safely keep the trench area open to access the pipe and complete the repair.
Although the rainy season has started and customer demands are lower (8 million gallons per day (MGD)) than during the summer months at 23 MGD, it is imperative that this repair is completed in a timely ...
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