Photo Gallery: Regional San Echowater

After one decade and $1.7 billion across more than 20 projects, the EchoWater project for Regional San is complete, making it the second largest plant of its kind in the U.S.

Regional San spans a 3,200 acre space between Sacramento, California and Elk Grove, California. Of that space, 1,100 acres are process areas with 2,100 acres of buffer land. It treats 135 million gallons per day for a population of 1.6 million people.

Christoph Dobson, Regional San general manager, said the buffer land was purchased years ago with the recognition that the community would expand and eventually encroach on the treatment plant. Keeping that buffer land allows it to ensure noise, odor and dust are not issues for its neighbors.

The decade-long EchoWater project was initiated following communications from the Central Valley Regional Water Quality Control Board in 2010 when it issued new treatment requirements for Regional San’s wastewater discharge permit. Read more about Regional San in the July/August edition of Wastewater Digest and watch the video with Dobson about the facility on our video page.