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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.
On August 22, 2020, Visa News's article "Martin County, Kentucky’s Water Crisis Isn’t Over. But It Has Changed." provided the most up-to-date summary of the crisis, encompassing not only the progress in water quality issues, but the rising problem of water affordability and the ongoing political issues surrounding the water crisis. [17]
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 ...
A program operated by Kentucky's Division of Water allows certain discharges into federal waters without a permit. ... reported by the company in 2019 to have detectable levels of aluminum, nickel ...
The U.S. Environmental Protection Agency said in one report that the average loss in water systems around the country was 16%, and the Kentucky Public Service Commission said in a November 2019 ...
The 2019 and 2021 tests detected PFAS chemicals at Kentucky American’s Richmond Road plant, which draws water from the Jacobson Reservoir, at levels below 4 ppt. Kentucky American is evaluating ...
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