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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]
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.
Compounds like pesticides and pharmaceuticals from fertilizers are carried by water from farms into their surrounding areas soil and water bodies. [23] Then runoff happens after rainfall or irrigation, which causes an influx of chemicals to leak out of the soil where they were dumped and into rivers, lakes, and groundwater. [23]
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.
Excessive groundwater pumping has long been depleting aquifers in California's Central Valley. Now, scientists say the depletion is accelerating.
The Stoker Company is a producer and applier of pesticides and a crop dusting loading facility, located in Imperial County, California, approximately 25 miles from the Mexican border. It is currently listed as a Superfund site because pesticides developed and used there are considered a human health hazard due to long-term exposure that may ...
OEHHA's research contributed to the phase-out of a toxic gasoline additive (MTBE) that contaminated groundwater throughout California. California was the first state to regulate a rocket fuel component which widely contaminates drinking water and produce including lettuce. OEHHA's research provided the basis for this drinking water standard.
Some California farming communities have been plagued for years by problems with their drinking water due to nitrates and other contaminants in the groundwater that feeds their wells. Advocates ...