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Summary of Applicable or Relevant and <br /> Appropriate Requirements (ARARs) <br /> for OU-1 at <br /> Defense Distribution Region West (DDRW) , Tracy <br /> Title Description Comment <br /> 42 USC 300f (Safe Drinking This law establishes standards for ARAR; applicable <br /> Water Act) current and potential drinking water <br /> supply sources by setting Maximum Con- <br /> 40 CFR Part 141 (National Pri- taminant Levels (MCLs) and non-zero <br /> mary Drinking Water Regula- Maximum Contaminant Level Goals (MCLG- <br /> tions) s) , which are one component of CA's <br /> water quality standards, by reference <br /> in the State and Regional water <br /> Board's Water Quality Control Plans. <br /> The remedial action objectives for <br /> ground water must meet State water <br /> quality standards. The Federal (and <br /> State) drinking water MCLs and Federal r;; <br /> non-zero MCLGs become upper-end z <br /> remedial action objectives for ambient <br /> ground and surface water (i .e. , ground 0 3 <br /> water left in place after remedia- <br /> tion) . MCL's and MCLG's are also used <br /> to establish discharge limits which <r c <br /> apply to discharge of treated water. E, D "' <br /> Ground water in the plume is a poten - <br /> tial and/or current drinking water <br /> source, under State Water Board r <br /> Resolution 88-63, which is part of the <br /> Water Quality Control Plans. <br /> February 28, 1992 -1- <br />