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Summary of Applicable or Relevant and <br /> Appropriate Requirements (ARARs) <br /> Defense Distribution Region West, Sharpe, San Joa in County <br /> Title Description Comment <br /> Chapter 15, Article 5 Establishes water quality protection ARAR; relevant and appropriate <br /> standards including concentration <br /> limits for constituents of concern at <br /> background levels. In a corrective <br /> action program, water quality protec- <br /> tion standards (cleanup levels) great- <br /> er than background may only be approv- • <br /> ed if background is not economically <br /> or technologically achievable. Cleanup <br /> levels above background must meet all <br /> applicable water quality standards, <br /> must be the lowest levels technolog- <br /> ically and economically achievable, <br /> must consider exposure via other media <br /> and must consider combined toxicologic <br /> effects of pollutants. Corrective <br /> Action Programs are required to achie- <br /> ve compliance with the water quality <br /> protection standard throughout the <br /> zone affected by the release. Correc- <br /> tive action programs must include <br /> source removal measures needed to at- <br /> tain water quality protection stan- • <br /> dards, thereby dictating necessary <br /> soil cleanup levels. <br /> CCR, Title 23, Division 3, Corrective action for leaking under- ARAR; relevant and appropriate <br /> Chapter 16 ground storage tanks. Regional Boards <br /> provide oversight of cleanup activi- <br /> ties. <br /> 17 April 1992 -6- <br />