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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 ...
The well was found to be contaminated with chromium(VI). The Midland groundwater reached higher levels of contamination than the EPA mandated maximum contaminant level (MCL) of 100 parts per billion. The current groundwater plume of chromium lies under approximately 260 acres of land at the West County Road 112 Groundwater Site.
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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.
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The Kentucky Public Service Committee (PSC) refused this request due to the water system's high water loss rate. The PSC instead gave two orders to increase the water rates. The first of these orders came on March 16, 2018, and granted an emergency rate increase of 26.5% and included an additional fee of $4.19 to help pay off the debt the water ...
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