Regional San is working collaboratively with Sacramento Municipal Utility District (SMUD) to convey recycled water to the Sacramento Power Authority (SPA) Cogen plant in south Sacramento for use in its cooling towers. When implemented, the project would provide approximately 1,000 acre-feet per year, or one million gallons per day, of recycled water in lieu of current potable water use.
Using advanced treatment processes, the Sacramento Regional Wastewater Treatment Plant (SRWTP) will produce high-quality recycled water that will be conveyed through “purple pipes” to the SPA Cogeneration plant located approximately six miles north of the SRWTP.
Construction of the SPA cogeneration is now complete. For 2019, Regional San is working closely with the City of Sacramento, SMUD, and the SPA for operations testing of the pipeline.
This project has numerous regional and environmental benefits, including:
Conserves potable surface and groundwater supplies
Helps to meet local, regional, state and federal water recycling goals
This project includes the following elements:
Level of treatment will be Title 22 tertiary recycled water
Recycled water will be supplied by SRWTP
Approximately six miles of pipeline construction
Recycled water demand will be about 1,000 acre-feet or one million gallons per day
Costs and Funding
The preliminary cost estimate for constructing the recycled water piping system is $15.2 million. In May 2012, the SPA Cogeneration Project received a $40,000 grant from the United States Bureau of Reclamation’s Watersmart Program to support the preparation of a feasibility study for the project.
In addition, Regional San applied for and received grants through Proposition 50, Proposition 1 and Proposition 84 totaling approximately $8,080,738 million. Regional San also secured approximately $8,182,200 in a low interest loan through the State Revolving Fund Loan Program. The grants and loan will help fund the design and construction of the project.
Funding for this $3,500,000 Regional San / SPA / City of Sacramento Water Recycling Pipeline Project – Phase 1B Project has been provided in full or in part by Proposition 1 – the Water Quality, Supply, and Infrastructure Improvement Act of 2014 and the Clean Water State Revolving Fund through an agreement with the State Water Resources Control Board. California’s Clean Water State Revolving Fund is capitalized through a variety of funding sources, including grants from the United States Environmental Protection Agency and State bond proceeds.
Here is an image of the sign that will be placed at the construction site:
The Final Environmental Impact Report (FEIR) for the Sacramento
Regional County Sanitation District / Sacramento Power Authority
(SPA) / City of Sacramento Water Recycling Pipeline Project (SPA
Project) was certified by the Regional
San Board of Directors on November 12, 2014.
Note: The Draft EIR for the Project, along with the Response
to Comments on the Draft EIR Document, constitutes the Final EIR
for the Project. These documents are provided below.
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