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Sue Stephenson
(925) 875-2295 office
(925) 570-5739 cell

Lea Blevins
(925) 875-2294 office

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DSRSD Puts the Lid on Digester at Wastewater Treatment Facility

Post Date:05/24/2018 4:00 pm

Media Contact: Lea Blevins, 925-875-2294 (office), 925-557-0161 (cell),

DUBLIN, CA – Early Wednesday morning, the Dublin San Ramon Services District topped off the $13 million fourth and final digester under construction at the Regional Wastewater Treatment Facility.

Using a 350-ton crane, GSE Construction placed the 40-ton steel lid on the District’s newest digester. Construction began in August 2017 on both the concrete digester and the 70-foot-diameter lid. The digester holds one million gallons of biosolids; total capacity of all digesters is three million gallons. Links to bird’s eye view (shot via drone by Engineering Technician – GIS Specialist II Bonifacio Duenas) and street view (shot on a cell phone by Senior Engineer Steve Delight).

“While this project has been planned and in the works for years, it seems so fitting to top it off during National Public Works Week (May 20 to 26),” says General Manager Dan McIntyre. “This week celebrates the many facets of public works, and we are especially proud of how the water and wastewater industry works 24/7/365 protecting public health and the environment.”

How the Digester Works
The anaerobic digesters work like mechanical stomachs, providing a warm environment where bacteria decompose the organic solids in wastewater and destroy pathogens. The process produces biogas, a renewable fuel DSRSD captures and uses to generate electricity and heat to power the plant. With the lid in place, the digester is slated to be complete and ready for operation in August.


Founded in 1953, DSRSD serves 178,000 people, providing potable and recycled water service to Dublin and the Dougherty Valley area of San Ramon, wastewater collection and treatment to Dublin and south San Ramon, and wastewater treatment to Pleasanton (by contract). DSRSD also operates the Jeffrey G. Hansen Water Recycling Plant and a backbone recycled water distribution system on behalf of the San Ramon Valley Recycled Water Program. The District office is located at 7051 Dublin Blvd., Dublin CA, 94568. For more information about the District, visit


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