A survey says the number is not disproportionately high. It's still important for PG&E to clean up groundwater tainted with chromium 6, says the epidemiologist who did the survey.
A state survey has not found a disproportionately high number of cancers in Hinkley, a high-desert community that has become the symbol of public fears about exposure to groundwater tainted with carcinogenic chromium 6.
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