Santa Ynez Pumping Plant Surge Tank Pedestal Replacement Project
Summary
SCH Number
2024080396
Public Agency
Central Coast Water Authority
(CCWA)
Document Title
Santa Ynez Pumping Plant Surge Tank Pedestal Replacement Project
Document Type
NOE - Notice of Exemption
Received
Posted
8/9/2024
Document Description
The Central Coast Water Authority ("CCWA") is responsible for delivering supplemental water supplies from the State Water Project to communities in San Luis Obispo and Santa Barbara Counties. Water is in part conveyed through a pipeline from the Santa Ynez Pumping Plant ("SYPP") to Lake Cachuma. The SYPP is
equipped with five 300~horsepower electric motor centrifugal pumps, and when operating at full capacity, pressure in the pipeline can reach 140-pounds-per-square inch. Large pressure transients can occur when pumping operations cease suddenly, such as in the event of an unplanned power outage, causing successive waves of high pressure through the length of the pipe. The SYPP is equipped with a surge tank
system mounted on a steel-reinforced concrete pedestal, designed to attenuate the magnitude of pressure transients.
Through routine inspection, staff identified damage to the pedestal and retained AECOM Engineering to assess the damage and provide a design for repair. The proposed project will demolish and reconstruct the surge tank concrete pedestals at the SYPP. More specifically, the scope of work includes disassembly of the surge tank piping and safe storage, removal of the surge tanks and safe storage, demolition of the concrete pedestals, protection of in-place piping, construction of the concrete pedestals, paint and line the surge tank and associated piping, and re-installation of the surge tank and associated piping. It is anticipated that all work will be conducted over a six-week period.
Contact Information
Name
Ray Stokes
Agency Name
Central Coast Water Authority
Job Title
Executive Director
Contact Types
Lead/Public Agency
Phone
Email
Location
Counties
Santa Barbara
Regions
Southern California
Zip
93460
Other Location Info
2800 Mesa Verde Road, Santa Ynez, CA
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 2, Section 15302 - Replacement or Reconstruction
Reasons for Exemption
The proposed Project is categorically exempt under Section 15302- Replacement or Reconstruction of the California Environmental Quality Act (CEQA) Guidelines because the Project involves the replacement or reconstruction of existing structures or facilities where the new structure will be located on the same site as the structure replaced and will have substantially the same purpose and capacity as the structure replaced. Only the pedestals supporting the surge tank will be demolished and replaced, with the reconstructed pedestals unmoved from the prior location and having like dimensions. The replacement pedestals will serve the same purpose of supporting the surge tank and have essentially the same capacity as the structures
replaced. As such, it is not expected to impact the environment and falls under the categorical exemption from CEQA review outlined in Section 15302.
County Clerk
Santa Barbara
Attachments
Notice of Exemption
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