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
Determine there is a need to continue the emergency action to execute and implement contracts for the 36-inch water transmission main leak repair and determine that the actions authorized by this item are exempt from CEQA.
Body
DISCUSSION:
Pursuant to City of Napa Municipal Code Section 2.91.040. City Staff shall continue to make reports to City Council at each regularly scheduled City Council meeting until the emergency action is terminated by the City Council. City Council adopted a Resolution at the February 2, 2021 Council meeting and determined the need to continue the emergency.
The repair work authorized by the declaration is ongoing and directly related to resolving the emergency. At the time of this writing, contractors are mobilizing to the site to dewater, excavate and install shoring. Once the hole is opened and the trench secured, staff will be able to safely inspect the pipe, assess the leak and determine the scope of the repairs.
Water system operations have shifted to treat Lake Hennessey source water. As mentioned in the report to Council on February 2, customers may notice the aesthetics of the water from Lake Hennessey differs from the City's main source of supply, State Water Project water from the delta that is treated at the Barwick Jamieson Treatment Plant (BJTP). The BJTP includes ozone treatment and is effective at reducing taste and odor compounds. However, even though water aesthetics vary, the City water delivered to customers meets and exceeds all water quality standards.
Staff has posted information about this change in water source on the City's website ahead of these operational changes.
FINANCIAL IMPACTS:
Sufficient funds are available in...
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