Today's Program
Speaker - Brandon Wood Zone 7
Zone 7 is a water wholesaler servicing about 250,000 residents in the Tri-Valley.
PFAS (poly-fluoro alkyl substances) are everywhere, but not in our drinking water. Zone 7 is handling it!
What is PFAS?
Manmade compounds since the 1940’s, used in a wide range of products. They are resistant to heat, water, oil. In plastics. The sources are in numerous everyday products today. Over 6,000 PFAS that have been manufactured since the 1940’s. It's hard to detect in water.
Initially Zone 7 sampled in 2018 (voluntarily), in 2022 Cal state water board issued an advisory establishing a regulatory limit. In 2023 Zone 7 opened the Stoneridge PFAS facility, and now the Chain of Lakes Facility.
The Zone 7 Strategy-Continue to monitor, blend & treat the water to deliver high quality water, manage ground water resources, diversify sources.
Expanded monitoring from 67 wells to 107 and share data with retailers and make it available to the public.
Removing PFAS through treatment using ION exchange treatment, with the Stoneridge facility and now the Chain of Lakes facility (due to be completed in early 2025).
The Stoneridge facility processes 6.5 million gallons of water per day . Another facility in conceptual design at Mocho.
Water agencies didn’t create PFAS but now required to clean it up. Zone 7 has been ahead of the learning curve.
