STANDING ON TOP of the largest groundwater well in eastern Alameda County, and flanked by twenty-foot cream-colored water vessels, five board members of the Zone 7 Water Agency, a water wholesaler for the tri-valley, have cut the ribbon on an advanced groundwater treatment facility in Pleasanton. 

Zone 7 Water Agency’s board members cut the ribbon during the unveiling of the new Ion Exchange PFAS Treatment Facility at the Stoneridge groundwater well in Pleasanton on Sept 13, 2023. (Ruth Dusseault/Bay City News)

The new technology is called Ion Exchange, which uses positive and negative particles to remove PFAS from ground water. 

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Ruth Dusseault is an investigative reporter and multimedia journalist focused on environment and energy. Her position is supported by the California local news fellowship, a statewide initiative spearheaded by UC Berkeley aimed at supporting local news platforms. While a student at UC Berkeley’s Graduate School of Journalism (c’23), Ruth developed stories about the social and environmental circumstances of contaminated watersheds around the Great Lakes, Mississippi River and Florida’s Lake Okeechobee. Her thesis explored rights of nature laws in small rural communities. She is a former assistant professor and artist in residence at Georgia Tech’s School of Architecture, and uses photography, film and digital storytelling to report on the engineered systems that undergird modern life.