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Low-Level Hexavalent Chromium Treatment Options: Bench-Scale Evaluation (Awwarf Report) Book
In February 1999, the California Office of Environmental Health Hazard Assessment issued a Public Health Goal (PHG) for total chromium of 2.5 g/L. The PHG, based on a 10^6 risk level for 0.2 g/L hexavalent chromium [Cr(VI)], was 40 times less than the USEPA's contaminant MCL of 100 g/L for total chromium [Cr(III) + Cr(VI)]. The success of the movie Erin Brockovich, which popularized a groundwater chromium pollution lawsuit in Hinkley, California, sensitized the public to the health hazards of chromium in drinking water. In 2001, the California state legislature passed a bill requiring the California Department of Health Services to adopt an MCL for Cr(VI). All of these actions must be viewed from the perspective that, at the time, no technology had been demonstrated to be effective at … read more...
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