Chromium-6 Water Treatment Facilities Project

Chromium-6 Water Treatment Facilities Project

The proposed project includes the construction and operation of water treatment facilities to achieve compliance with the new chromium-6 regulation that was promulgated by the State of California in July 2014. The Coachella Valley Water District is proposing an ion exchange treatment plant (IXTP) approach for removing chromium-6 from affected drinking water wells. Ion exchange is a water treatment method where one or more undesirable constituents are removed from the water by exchange with another constituent. Two types of IXTPs will be used for the chromium-6 project: Strong Base Anion Exchange (SBA) and Weak Base Anion Exchange (WBA). SBA treatment would be installed at 23 existing well sites located throughout the CVWD service area, and a new Central Resin Regeneration Facility would be constructed for processing the SBA resin collected from each of these sites. WBA treatment is proposed for five wells that occur in two distinct clusters within the CVWD service area. For each of the clusters, raw water would be pumped from each well and conveyed via new pipelines to a new WBA treatment facility.

Desert Hot Springs, Indio, La Quinta, Palm Desert, Rancho Mirage, Rancho Mirage, Palm Desert, Indio, La Quinta, ...

Riverside

California Air Resources Board (ARB), California Department of Parks and Recreation, California Department of Transportation, District 8 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Colorado River Basin Region 7 (RWQCB), Department of Fish and Wildlife, Region 6, Department of Toxic Substances Control, Department of Water Resources, Resources Agency, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Divison of Financial Assistance

State Water Resources Control Board, Divison of Financial Assistance

Water Facilities (Type Treatment)

CVMSHCP Review

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