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

Lea Blevins
(925) 875-2294 office

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Learn About Higher Wastewater Flows in Rainy Months

Post Date:04/01/2019

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

PLEASANTON (April 1, 2019)—California has experienced high rainfall during the winter season and continuing into spring, and heavy rain can affect flow levels coming into the Regional Wastewater Treatment Facility (RWTF).

 A woman wearing a visitor vest looks over the primary sedimentation tanks during a tour of the wastewater treatment plant.
A visitor on tour at the Regional Wastewater Treatment Facility learns about the primary sedimentation tanks.

Wastewater and stormwater flow through separate pipes in the District’s service area. However, during times of heavy rain, flooded streets and saturated soil can cause water to seep into sewer lines through manhole covers, pipe joints, and cracks caused by normal aging or tree roots seeking moisture. During wet weather, wastewater volume flowing to the treatment plant can increase by two and a half times.

Learn more about how the RWTF manages higher flows and all the processes involved not only in wastewater treatment, but also in producing recycled water for school grounds, golf courses, sports grounds, roadway medians, and more. A quarterly public tour is scheduled for 1 p.m. Wednesday, April 10, at the RWTF, 7399 Johnson Drive, Pleasanton. Tours run 60 to 90 minutes and are open to ages 10 and older.

The facility treats wastewater from Dublin, southern San Ramon, and Pleasanton to protect public health and the environment. Tour participants will learn how DSRSD recovers important resources from wastewater, including recycled water for irrigation and construction as well as methane for generating electricity. The tour also highlights rewarding career opportunities in the industry.

Reservations are required. To sign up, visit to fill out a Tour Request Form or call 925-875-2399 to reserve a spot.

Founded in 1953, DSRSD serves 186,000 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 the 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

Dublin San Ramon Services District logo, Water, wastewater, recycled water 

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