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TABLE B <br /> COC WQO(Aff&) <br /> TPHd 210 <br /> TPHg 210 <br /> Benzene 46 <br /> Toluene 130 <br /> Ethylbenzene 43 <br /> Xylenes 100 <br /> MTBE 1,800 <br /> TBA 18,000 <br /> 5.2 DRAFT LOW-THREAT UNDERGROUND STORAGE TANK(UST) CASE <br /> CLOSURE POLICY <br /> On July 19, 2011, a task force presented to the State Water Resources Control <br /> Board (SWRCB) its recommendations from the Draft Low-Threat UST Case Closure Policy 2 <br /> (draft policy), dated July 14, 2011. The peer reviews for this draft policy were just <br /> recently completed. <br /> The intent of this draft policy is to increase UST cleanup process efficiency. A benefit of <br /> improved efficiency is the preservation of limited resources for mitigation of releases <br /> posing a greater threat to human and environmental health. The general criteria that <br /> must be satisfied by all candidate sites are listed as follows: <br /> a. The unauthorized release is located within the service area of a public water system; <br /> b. The unauthorized release consists only of petroleum; <br /> c. The unauthorized ("primary') release from the UST system has been stopped; <br /> d. Free product has been removed to the maximum extent practicable; <br /> e. A conceptual site model has been developed; <br /> f. Secondary source removal has been addressed,and <br /> g. Soil or groundwater has been tested for MTBE and results reported in accordance <br /> with Health and Safety Code section 25296.15 <br /> 2 http://www.waterbouds.ca.gov/wateT-Ls es/programs/mt/lt_ds-pky.shtml <br /> 241729(33) 11 CONESTOGA-ROVERS&ASSOCIATES <br />