SITE INFORMATION AND CORRESPONDENCE

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_F CCR. Ts 3. Divtsct]n 3. Guvrm 16, U»oeacaonwa SMRAGs T REGutw7To14s Soil mad Water rnvestlgarion Phase (_) The Soil and Wa[crssInve3dgation Phase includes chc collection data necssary co aa ess the azmre and v��jand analysis of and latera!eiaent o release and co determine cost-erFceive,acthod of ctanuQ. (b) Using information obtained during die investigation, the responsible party shall Propose a Corree+.ive Aedon Plan. The Carrective chose activities determined to be cgsc-cd6ctive Action Alan ,had Consist Of i (c) The responsible parry•hIg submit the Corrective Ammon Plan W the regular agency far review.and concurrence The the Corrective Action Plan after en�ory,agency shalt concur with will ad determining dlac implcmenratiOn at the pian adequately Protect human hal restore or protect current or $atcty and die environment and will potential beneficial uses of 1 party shatl modify the Corrective, water. The:resQonsil3le inion Plan in response co a final regulatory agency dlreCZfvG - � (d) The Corrective Action Plan shall indudc the following elements: (1) an assessment Of the imPa=listed in subsection(c)of this Section; (2) 1 fcasibillcy study.in accordance with subsection(1)or this Scctfon. and (3) apPllcable cleanup levels.in accordance with subseafon(S3 of this Section. { (e) do usessmen[of the imoacss shall include,but is not amiced to, the following; (1) The physical and chemical characcerisrics of the hazardous substance Or its cOnstituenU,includin f g chcir to:actty, persistence and pOcenual for t migration in water,soil, and air; (2) The hydrogcoiagic characteristics of the site and the surrounding arc= t where the unauthorized refc5sc has migrated or may migmrc; (3) The PrMdmity and quality of nearby surface water or ground water,and (tic current and pocenual be ecttcia/uses of these waters: i (4) The paccnriat elfeas Of residual connminatlon On nearby surface watcr and ground water.amt (t) The reaponsibic pans shalt Conduct a reambillry study cc evaluate alternacivcs for remedying or mtdg=ng rhe actual or potential adverse edeas Oi else unauthorized release. Each altcrnadve shall be evaluated for cost-c-fecrivencss, and(he responsible party shall propose to impicmcnt the most cost-ct`iecuve corrective scion. (1) For all sires.each c'=Qmmendcd alrernauve shaA be designed to mitigate nuisance conditions and risk of fire or cxnlosion: (2) For sites where the unauthorized release afects or threatens waters miff current or potential bencdcial us—designated in water quality control Plans, the feasibility study shat also identify and evaluate at least two lternacives for restoring Or protecting chase beneScizt uses: (3) For$ices where the unauthorized release sfetst or chremccris waters wrth no c urenc or potential bcneticial uses designated in water quail- control plans, the feasibility study shall identify and evaluate at least one alternative to saasry paragraph(1)or this subsection. (9) Cleanup leveis for ground or surface waters,stfectcd or thres[ened by the unauthorized release,shall comoly with the requirements of Section 2721(b) and shall meet the following rcquwements: (1) For waxers with current or potential bencticial uses for which numeric! Objectives have been designated in waterquality res onsible a ltecontrol plans, the P parry shall proQtue ac!case two alternatives to achieve these J numcntsl objectives; IP (2) For waters with current Oc potential beneficial use,for which no numericf obiccuvcs have been designated in water quality control pians. the responsible parry shall recommend Cirget cleanup levels far long- , (erm corrective actions to the r lata a . �u rp gcncy roc concurrence- Targe: cleanup lcvcis sha11 be based on the impact uscssmcnc,prepared in accordance with subsection(e)of this Section. Auchortry: H&SC Section 275299.'7 Kcerencc: H&SC Sections 25299,37, 275299.57