Chromium 6 is a Class A carcinogen only in "extremely heavy occupational exposure, as when manufacturing it or using it in welding; the exposure in these cases was through inhalation. That explains why the two cancers connect to Chromium 6 are "parts of the body with which air makes direct contact during inhalation," while it is a Class D (no link) carcinogen for ingestion through the water supply (Fumento, "Errin' Brockovich, 2000). The amount of Chromium 6 in Hinkley's water never exceeded 0.58 parts per million, even according to the film -- well below what would produce any side effects at all. There was no commonality of symptoms or suspiciously high rate of one, particular disease, all things that a legitimate epidemiologist would look for when evaluating the carcinogenic potential of the chemical in the water.

A January report from Glasgow, Scotland, found "no increased risk of congenital abnormalities, lung...
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