On December 31, the California Office of Environmental Health Hazard Assessment (CA OEHHA) released a revised draft public health goal (PHG) for Cr-VI of 0.02 ppb for public comment. Once the state finalizes the PHG, it can proceed with the maximum contaminant level (MCL) process. On January 25, CA OEHHA extended the comment period to February 15 since it had revised the draft PHG document to “cite comparable published studies.”
The December 31 proposal would revise a prior recommendation for a 0.06 ppb public health goal for hexavalent chromium. The updated draft “Public Health Goal for Hexavalent Chromium in Drinking Water” is available at www.oehha.ca.gov/water/phg/chrom012511.html.