From the archives of Maven’s Notebook:
Original published: August 13, 2014
“At the July 25th meeting of the Delta Stewardship Council, council members heard a presentation on the challenges of managing the Delta’s salinity during times of drought.
Salinity in the Delta is largely a tug of war between the daily and seasonal tides pushing in from San Francisco Bay and the flow of fresh water coming down through the rivers and heading out of the Delta towards the Bay. Salinity in the Delta is regulated to protect municipal and industrial, agricultural, and fish and wildlife uses, and if the saltwater intrudes too far into the Delta, it can make the water unusable. Since the Department of Water Resources and the Bureau of Reclamation manage the most of the water stored in upstream reservoirs, as well as the flow structures and pumps in the Delta, they have the primary responsibility for managing salinity in the Delta.
On the panel are John Leahigh with the Department of Water Resources, Mark Gowdy from the State Water Resources Control Board, Cindy Garcia with DWR’s Municipal Water Quality Investigation’s Program, and John Herrick with the South Delta Water Agency.
Sam Harader, Program Manager with the Delta Science Program, began with a short video from the Bay Delta Live website to demonstrate how salinity changes and moves in the Delta over time. … ”
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