SITE INFORMATION AND CORRESPONDENCE_1988-1991

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MEMORANDUM * CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD - CENTRAL VALLEY REGION 3443 Routier Road, Suite A Phone: (916) 361-5600 Sacramento, CA 95827-3098 ATSS Phone: 8-495-5600 TO: Files FROM: Antonia K. J. Vorster Camilla K. Williams DATE: 16 September 1991 SIGNATURE: eG�lfdrxi SUBJECT: IDENTIFICATION OF POTENTIAL REGIONAL BOARD APPLICABLE OR RELEVANT AND APPROPRIATE REQUIREMENTS (ARARS), DEFENSE DISTRIBUTION REGION WEST, SNARPE SITE, SAN JOAQUIN COUNTY This memo addresses the formal solicitation of ARARs as well as provides specific comments on the proposed remedial alternatives in the Draft Feasibility Study Report (FS) . We have reviewed the ARARs section of the Draft FS Report and developed the following comments. Generally, Sharpe has developed an extensive overview of ARARs which form a good basis for developing remedial objectives. The enclosed memo is a generic list of Regional Board potential ARARs, which is being updated to include the California Inland Surface Waters Plan which was recently adopted. Potential ARARs apply to remedial objectives of ground water (i .e. , cleanup levels) as well as to treatment and disposal alternatives for contaminated ground water (i .e. , setting performance standards for disposal to land or surface water) . The following potential ARARs must be specifically considered in preparing the Final FS Report and the subsequent remedial design: 1. Porter-Cologne Water Quality Control Act (Division 7, Water Quality portion of the Water Code) - This Act provides statutory authority to the State and Regional Boards for the protection of existing and probable future beneficial uses of the waters of the state. The Regional Board establishes its water quality standards primarily in adoption of Water Quality Control Plans and of waste discharge requirements (WDRs) . Substantive requirements, and in some cases the administrative requirements of WDRs, must be satisfied. The Porter-Cologne Water Quality Control Act includes location, action, and chemical specific ARARs. 2. Water Quality Control Plan for the Central Valley Regional Water Quality Control Board (Basin Plan) - The Basin Plan for the Sacramento River Basin identifies the beneficial uses of particular surface and ground water bodies and water quality objectives to ensure reasonable protection of beneficial uses. The Basin Plan has designated all ground water, with only a few exceptions, to have existing or potential beneficial uses as sources of drinking water. These water quality objectives consist of narrative and numerical standards to protect designated beneficial uses. The Basin Plan establishes chemical , action, and location specific ARARs. 3. California Inland Surface Waters Plan, adopted by the State Water Resources Control Board on 11 April 1991 through the authority of section 13170 of the Water Code to establish water quality standards required by the Federal Clean Water Act. This Plan establishes or provides procedures for setting effluent limitations for both health and environmental protection based upon existing