RVWTP Diesel Fuel UST Replacement Tank


SCH Number
Public Agency
Santa Clarita Valley Water Agency
Document Title
RVWTP Diesel Fuel UST Replacement Tank
Document Type
NOE - Notice of Exemption
Document Description
Replacement of the existing diesel fuel underground storage tank with the above ground storage tank and replace the day tank with a new tank at the Rio Vista Water Treatment Plant (RVWTP). The storage tank and day tank are part of the diesel fuel storage system for the standby generator at the RVWTP The Project will consist of the removal of two existing diesel fuel storage tanks, one 8,000-gallon tank and the other a 100-gallon tank, their replacement with identically sized tanks, and replacement of the piping between the tanks and the generator. During the Project construction a temporary 8,000-gallon above ground storage fuel tank will be installed to provide uninterrupted fuel supply to the standby generator. The new ConVault 8000-gallon diesel storage tank manufactured by Oldcastle Precast is comprised of double wall construction for 110% containment and rust resistance. The tank also has an integrated secondary containment comprised of a high performance, 30 MIL high density polyethylene membrane around the primary tank with an engineered concrete outer vault encasing both primary and secondary containment in 6-inches of steel reinforced concrete with an epoxy coating for corrosion and vehicle impact protection. The storage fuel tank will have the liquid monitoring system and the leak detection system installed. The 8000-gallon tank will provide fuel storage for the RVWTP standby generator and will be installed on a 20-inch-thick concrete pad with 6-inch concrete berm. The tank will be seismically braced and anchored. The new Simplex 100-gallon day tank will replace the existing 100-gallon Pryco Inc. day tank inside the engine generator room, in accordance with all applicable Fire Code and National Fire Protection Agency 30 requirements. No changes will be made to the existing emergency generator’s current operation procedures.

Contact Information

Rick Vasilopulos
Agency Name
Santa Clarita Valley Water Agency
Contact Types
Lead/Public Agency


Santa Clarita
Los Angeles
Other Location Info
The physical address of the project is 27234 Bouquet Canyon Road, Santa Clarita, CA 91350

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Reasons for Exemption
The project qualifies for an exemption under CEQA guidelines section 15301 Class 1 Existing Facilities because it is a minor alteration of an existing public facility and it concerns proposed new mechanical equipment involving negligible or no expansion of use, i.e., no additional extraction of water, beyond that existing at the time of the lead agency’s determination
County Clerks
Los Angeles, Ventura


Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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