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Sonoma Water outlines multi‑year transmission upgrades, tank rehabilitation and pilot aquifer recharge plans
Summary
Sonoma Water presented a suite of transmission, storage and treatment projects that agency officials say are intended to improve seismic resilience, replace aging coatings and corrosion protection, and pilot aquifer storage and recovery (ASR) wells in the Santa Rosa Plain.
Sonoma Water staff briefed the Cotati City Council on a multi‑year program of infrastructure work that will affect regional water supply and reliability.
The presentation, led by Kent Gilphy, director of engineering for Sonoma Water, summarized projects now in construction and design, including a 10‑year tank rehabilitation program, cathodic protection upgrades on aging aqueducts, several booster pump station upgrades, and a pilot program to enable two production wells in the Santa Rosa Plain for aquifer storage and recovery (ASR).
The agency said the tank rehabilitation program is among its largest single investments: an approximately $80 million, 10‑year effort to recoat and upgrade 18 storage tanks totaling about 128 million gallons of storage. ‘‘We recently completed the Cotati 1 tank, and we just awarded the contract for Cotati 3, which is an 18 million‑gallon tank that will be out of service for…
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