Background
The Green Verdugo Reservoir is an LADWP drinking water storage facility located in the Sunland area of the San Fernando Valley. The reservoir is formed by an earth fill dam and was first placed in service on September 28, 1953.
The existing floating cover at the Green Verdugo Reservoir was installed in 1989 and has reached the end of its service life. As a result of damage sustained in the September 2017 La Tuna Canyon fire, the 31,000 million gallon reservoir has been taken out of service until the replacement of the floating cover and related reservoir improvements have been completed. LADWP is accelerating the project in an effort to return the reservoir to service as soon as possible. During this time, water to the area will be supplied by other LADWP facilities.
Two water quality regulations mandated by the United States Environmental Protection Agency necessitate these critical infrastructure improvements and are described as follows:
- Stage 2 Disinfectants and Disinfection Byproducts Rule (S2DDBPR)
Addressing risks from microbial pathogens, disinfectants, and/or disinfection byproducts, S2DDBPR requires compliance with new disinfection byproduct standards. - The Long Term 2 Enhanced Surface Water Treatment Rule addresses covering existing reservoirs and/or providing increased protection from microbial pathogens.
Replacement of the floating cover for Green Verdugo Reservoir is a key capital improvement project and is crucial to maintaining the reservoir’s water quality and supply reliability. Additional modifications to the reservoir’s inlet and outlet facilities will be made to improve reservoir circulation, water quality, and operations and maintenance.
Green Verdugo Reservoir
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Before La Tuna Canyon Fire |
After La Tuna Canyon Fire |
Construction Details
The new floating cover will protect over 3.23 acres (140,700 square-feet) of the Green Verdugo Reservoir’s surface area. The overall project includes:
- Removal and replacement of the floating cover
- Installation of a new asphalt concrete liner, security appurtenances, and hydraulic control valves
- Modification of the inlet and outlet pipes
- Re-pavement of the reservoir road
- Construction of a new control building
Project Schedule
Construction was complete on April 23, 2024, at which point the reservoir went into the commissioning phase.
During the commissioning phase, the Contractor will continue to test the pumps and automated programing for the stormwater drainage system. Department Engineers and Construction Forces will continue testing of the subdrain system.
The Commissioning Phase will continue into late 2024 and possibly Spring of 2025.
Contact Us
Project Manager
Alexander Reyman
(213) 761-2134
[email protected]
Construction Manager
Fares Botros
(213) 367-4291
[email protected]
Community Liaison
Christina Holland
(213) 367-1076
[email protected]
updated July 29, 2024