Image: logo of California’s Department of Water Resources (DWR)
Critically overdrafted groundwater basins are required to submit groundwater sustainability plans to the state by January 31, 2020 that outline how the basins will reach sustainability over the next 20 years
Local agencies representing 19 of the state’s most stressed groundwater basins are required to submit plans to the state by midnight tonight on how they will manage their basins to … [more…]
Credit: Bryan Riel and Mark Simons
Using an unprecedented number of satellite radar images, geophysicists at Caltech have tracked how the ground in Southern California rises and falls as groundwater is pumped in and out of aquifers beneath the surface.
Their findings are presented in a study that tracks deformation of the earth’s surface over an 18-year period. The work can be used by water management districts to assess the … [more…]
Farm fields along the path of the California aqueduct in the Central Valley, a region that produces a quarter of the nation’s food. Photograph: Lucy Nicholson/Reuters
The floor of the Central Valley is slumping, and there is arsenic in the tap water. Now it seems the two problems are connected
Isabel Solorio can see the water treatment plant from her garden across the street. Built to filter out the arsenic … [more…]
Completed during Harry Truman’s presidency, the Friant-Kern Canal has been a workhorse in California’s elaborate man-made water-delivery network. It’s a low-tech concrete marvel that operates purely on gravity, capable of efficiently piping billions of gallons of water to cities and farms on a 152-mile journey along the east side of the fertile San Joaquin Valley. Until now.
The Friant-Kern has been crippled by a phenomenon known as subsidence. The canal
This is part two of the series “Building Land in Coastal Louisiana: Expert Recommendations for Operating a Successful Sediment Diversion that Balances Ecosystem and Community Needs.” Please follow the link below for the original(s).
Historically, the Mississippi River has periodically overtopped its natural levee and flooded the adjacent wetlands with sediment-laden water. This natural process has been interrupted by the construction of flood control levees, and the available sediment has … [more…]