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A 2007 toxicity report for the National Toxicology Program provided evidence that high doses of chromium 6 caused cancers of the gastrointestinal tract in rats and mice at levels higher than 5 mg/L of water, (5 ppm, or 5,000 ppb). [41] [42] Average hexavalent chromium levels in Hinkley were recorded at 1.19 ppb, with an estimated peak of 20 ppb.
An example of this chemical causing adverse health issues is through a well-known hexavalent chromium (chromium 6) pollution event in Hinkley, California. Groundwater contamination in Hinkley was caused by water containing hexavalent chromium being dumped on the ground by Pacific Gas and Electric (PG&E) from 1952 to 1966. PG&E used this ...
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Over half of the U.S. population relies on groundwater for drinking water [1] However, residential, municipal, commercial, industrial, and agricultural activities can all contaminate groundwater. [2]: C-2 In the event of contamination, a community's drinking water supply can develop poor quality or be lost altogether. Groundwater contamination ...
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Thousands in Eastern Kentucky still without water. Towns wonder how they’ll pay for repairs. Beth Musgrave, Bill Estep. August 4, 2022 at 12:06 PM. Ryan C. Hermens/rhermens@herald-leader.com.
Bodies of water of Pike County, Kentucky (1 C, 1 P) Bodies of water of Powell County, Kentucky (1 C) Bodies of water of Pulaski County, Kentucky (1 C, 1 P) R.