Chrome 6 is a contaminant found in groundwater at some places in California (and elsewhere). The American Ground Water Trust’s Sacramento workshop program reviewed the scientific background to the occurrence of Chrome 6, outlined the background to regulations aimed at keeping drinking water safe and discussed the economics and technology of Chrome 6 treatment options. For many communities in California groundwater is the only available supply source, and where Chrome 6 is detected, there are often high costs involved in order to comply with drinking water standards or to find alternative supply sources. The availability of lower cost Chrome 6 treatment technology that was outlined at the workshop could help large and small communities with achieving drinking water compliance.
Chromium is an odorless and tasteless metallic element found naturally in rocks, plants, soil and volcanic dust. The most common forms of chromium that occur naturally in the environment are Trivalent chromium (Chromium 3) and Hexavalent chromium (Chrome 6). Chromium 3 is essential as an element of human diets and is found in many vegetables, fruits, meats and grains. While Chrome 6 occurs naturally in the environment, it can also be produced by industrial processes and become a contaminant in soil and groundwater.
Public awareness of Chrome 6 as a contaminant was increased by the portrayal of the consequences of contamination in the community of Hinckley in the 2000 film “Erin Brockovich” starring Julia Roberts.
The Sacramento workshop presenters were:
~ Andrew Stone, Executive Director, American Ground Water Trust, Concord, NH
~ Dr. Chad Seidel, Vice President, Corona Environmental Consulting, Boulder, CO
~ Dr. John Izbicki, USGS Research Hydrologist, San Diego, CA
~ Ryan Rhoades, Senior Associate, Hazen and Sawyer, Scottsdale, AZ
~ Steve Bigley, Director of Environmental Services, Coachella Valley Water District, Coachella, CA
~ Norman Sendler, Water Treatment Specialist, Layne, Mesa, AZ
~ Bill Brennan, Central Coast Water Authority Executive Director (retired),Santa Barbara, CA
~ Mark Bartson, Chief, Technical Operations Division of Drinking Water, Water Resources Control Board, Sacramento, CA
~ Adán Ortega, Executive Director, California Association of Mutual Water Companies, Fullerton, CA
~ Bill Ketchum, President, ATEC Systems Associates, Seattle WA
~ Lee Odell, Water Treatment Global Technology Lead, CH2M, Portland, OR
~ Terry Foreman, Groundwater Consultant, Camarillo CA