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Contaminated groundwater in the Central Valley of California is a growing problem due to contamination and overuse. [1] This problem is compounded by the overdrafting of underground aquifers. [1] nitrates are the most abundant pollutants in the Central Valley due to the copious amounts of agricultural runoff from the farms. [2]
Satellite image of Hinkley, Barstow and Harper Lake, California. From 1952 to 1966, Pacific Gas and Electric Company (PG&E) dumped about 370 million U.S. gallons (1.4 × 10 9 liters) of chromium-tainted wastewater into unlined wastewater spreading ponds around the town of Hinkley, California, located in the Mojave Desert about 120 miles (190 kilometers) north-northeast of Los Angeles.
The Groundwater Ambient Monitoring and Assessment Program (GAMA) is an all-inclusive monitoring program for groundwater that was implemented in 2000 in California, United States. It was created by the California State Water Resources Control Board as an improvement from groundwater programs that were already in place.
Excessive groundwater pumping has long been depleting aquifers in California's Central Valley. Now, scientists say the depletion is accelerating.
Groundwater contamination in California impacts many regions, such as the Central Valley. [2] One of the sources of groundwater contamination can be linked to animal agriculture and Animal feed operations (AFO). These facilities tend to have a higher concentration of animal manure, which when stored improperly can cause problems by leaking into
Ten years ago, California adopted a law to curb chronic overpumping of groundwater. Significant challenges remain, even as the state works toward its goals.
California passed its landmark groundwater law in 2014. The goals of sustainable management remain a long way off. Despite California groundwater law, aquifers keep dropping in a 'race to the bottom'
Groundwater pollution (also called groundwater contamination) occurs when pollutants are released to the ground and make their way into groundwater.This type of water pollution can also occur naturally due to the presence of a minor and unwanted constituent, contaminant, or impurity in the groundwater, in which case it is more likely referred to as contamination rather than pollution.