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CCR, Trrix 23, DMSION 3, CIIAPTER 16, UNDERGROUND STORAGE TANK REGULATIONS <br /> agency directive. <br /> (d) The Corrective Action Plan shall include the following elements: <br /> (1) an assessment of the impacts listed in subsection (e) of this Section; <br /> (2) a feasibility study, in accordance with subsection (f) of this Section; and <br /> (3) applicable cleanup levels, in accordance with subsection (g) of this <br /> Section. <br /> v (e) An assessment of the impacts shall include, but is not limited to, the following: <br /> 3Y (1) The physical and chemical characteristics of the hazardous substance or <br />=t( its constituents, including their toxicity, persistence and potential for <br /> migration in water, soil, and air; <br /> (2) The hydrogeologic characteristics of the site and the surrounding area <br /> where the unauthorized release has migrated or may migrate; <br /> (3) The proximity and quality of nearby surface water or ground water, and <br /> the current and potential beneficial uses of these waters; <br /> (4) The potential effects of residual contamination on nearby surface water <br /> and ground water; and <br /> (f) The responsible party shall conduct a feasibility study to evaluate alternatives <br /> for remedying or mitigating the actual or potential adverse effects of the <br /> unauthorized release. Each alternative shall be evaluated for cost-effectiveness, <br /> and the responsible party shall propose to implement the most cost-effective <br /> corrective action. <br /> (1) For all sites, each recommended alternative shall be designed to mitigate <br /> nuisance conditions and risk of fire or explosion; <br /> (2) For sites where the unauthorized release affects or threatens �%-aters with <br /> current or potential beneficial uses designated in water quality control <br /> plans, the feasibility study shall also identify and evaluate at least two <br /> alternatives for restoring or protecting these beneficial uses; <br /> (3) For sites where the unauthorized release affects or threatens waters with <br /> no current or potential beneficial uses designated in water qualin <br /> control plans, the feasibility study shall identify and evaluate at least one <br /> alternative to satisfy paragraph (1) of this subsection. <br /> 11 - 6 <br />