Sunday, May 17, 2015

That's A Lot

When groundwater levels sink low enough, the soil can compact and cause the land surface to sink. Land subsidence can crack irrigation canals, buckle roads and permanently deplete water-storage space.

In some areas of the San Joaquin Valley, the land has been sinking as much as a foot a year. The Department of Water Resources expects to get a report next month that will help officials better understand the extent of subsidence.