PG&E reduces Hinkley chromium-6 cleanup time
A month after Pacific Gas & Electric Co. presented state regulators with a 220-year plan to clean up the hexavalent chromium groundwater contamination in Hinkley, Calif., the utility giant submitted an improved remediation plan that “incorporate measures to reduce the remediation timeline.” Instead of 220 years, PG&E says it will now take just 95 years to reduce the chromium-6 to 1.2 ug/L level. Keep in mind the California’s Office of Environmental Health Hazard Assessment has recommended a 0.06 ug/L maximum contamination level for chromium-6 in drinking water.
The residents of Hinkley may finally be able to use their groundwater supplies in year 2106. Good job, PG&E!
- California Environmental Protection Agency: Lahontan Regional Water Quality Control Board’s page on PG&E’s Hinkley chromium cleanup
- PG&E’s addendum #2 feasibility study (PDF)
- PG&E’s web page on Hinkley clean-up