Arizona lacks a statewide groundwater withdrawal permitting system. Landowners can pump groundwater under a “reasonable use” mandate. This has, however, led to serious overdraft of groundwater ...

Near Patterson, in the foreground is the Edmund G. Brown California Aquaduct (State Water Project) and behind it is the Delta-Mendota Canal, part of the (Federal) Central Valley Project. Dick Schmidt ...

With long-term declines in groundwater levels putting thousands of domestic wells at risk and causing the ground to sink in parts of the San Joaquin Valley, state regulators are moving forward with ...

Arizona Democrats have proposed a bill that would regulate groundwater pumping in rural areas. The bill would create local councils to manage groundwater and aims to reduce overdraft by at least 50%.