Las Vegas groundwater management a success, but overpumping issues loom
Net groundwater pumping peaked in 1968 at 86,000 acre-feet and started to go down in the 1980s, ’90s and 2000s, according to the state’s 2018 groundwater pumpage inventory for the aquifer. Thanks to the water authority’s efforts to reduce pumping, only 10% of the water used in the valley now comes from groundwater, while the rest comes from Lake Mead, Mack said.