Roseville rainfall helps recharge aquifers for drier times

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An initial recharge can provide enough water for more than 300 homes for a year

ROSEVILLE, CA – As California experiences heavy rain to kick off the new year, Roseville will begin operations today to recharge its groundwater basin using specially designed groundwater wells. Heavy atmospheric rivers bringing much needed rain over the past several days meant that Folsom Reservoir quickly gained a large amount of water, and the releases are needed to control flooding.

From January 6th to 14th, Roseville will have an initial water overflow from Folsom Reservoir – Approximately 60 million gallons – through our contract with the US Bureau of Reclamation Central Valley project to store excess water within aquifers. We intend to put this water to good use when we encounter dry conditions.

Investing in groundwater management

“Given our investments in groundwater management more than two decades ago, we are reaping the benefits to start this new year by accessing water that would otherwise be lost and storing it locally for later,” said Sean Begley, assistant director of Roseville Environmental Facilities. . “Over the past two years, we have stored more than 325 million gallons of water and used it to manage drought conditions.”

just a year ago, Roseville treated it enough Water to fill 160 Olympic-sized swimming pools. Later in 2022, that water is used as a drinking water source to reduce reliance on Folsom Reservoir.

Benefits

Using Folsom Reservoir water to replenish the aquifer provides multiple benefits, including:

  • Picking up water that would otherwise have spilled into the ocean unnecessarily
  • Bank water into ‘aquifers’ – such as a savings account – to be used in a coordinated manner depending on water conditions and to dilute surface water supplies when surface water is scarce
  • Effective replenishment to ensure a healthy aquifer as required by state law and as a good steward of our water resources
    Roseville expects more surface water to be available for replenishment over the coming weeks, but that is dependent on the need to create additional winter flood capacity at Folsom Reservoir.
Swimming Folsom Lake
Summer waters flow into Folsom Lake

regional strategy

Roseville’s actions are part of a regional strategy to adapt the Sacramento-area water system to climate change by storing — or “buffering” — excess surface water underground during wet times for later use during dry times. The aquifer is a reservoir under our feet that can hold twice as much water as the Folsom Reservoir.

said Jim Beaver, executive director of the Regional Water Authority, which represents nearly two dozen water providers serving two million people in the Sacramento area and is leading efforts to develop the water bank. “Roseville is doing its part to build a reliable water system for customers and the Sacramento region.”

For more information about the Roseville Groundwater Program, visit Roseville.ca.us/groundwater Or visit Roseville.ca.us/water Future to learn more about Roseville water resource planning.

Information about the Sacramento Regional Water Bank and how to participate is available Online.

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(now in our twentieth year)

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