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J ARCO #2130 Page 1 of 2 <br /> I191I <br /> Closure Review • O CLEANUP cGHTwkexc ERIE ISEARCHATIOGOur <br /> ARCO #2130 (T0697700974) • MAP THIS SITE GEO C O OPEN - FEMEOIATION <br /> 7906 EL DORADO STN ACTIVITIES REPORT SAN JOAQUIN COUNTY LOP p.EAO/ - CASE a 104 <br /> STOCKTON , CA 95210 ASEWORKER: MIGNAEL INFU - SUPERVISOR: NONE SPECIFIED <br /> SAN JOAQUIN COUNTY PUBLICWEBPAGE CENTRAL VALLEY RWOCB (REGION 5S) - CASE* 3601M <br /> VIEW PRINTABLE URF FORM FOR THIS SITE CASEWORKER.-JAMES BARTON - SUPERVISOR: JAMESMUNCN <br /> CUP Claim P: 6650 <br /> CUF Amount Paid j <br /> S SITE HAS UNAPPROVED SUBMITTALS. CLICK HERETO OPEN A NEW WINDOW WITN THE SUBMITTAL APPROVAL PAGE FOR THIS SITE. <br /> CLOSURE REVIEW THIS VERSION IS FINAL CLOSURE REVIEW HISTORY <br /> IS THIS CASE READY FOR CLOSURE? r VES R NO - VIEW MAXIMUM CONCENTRATIONS REPORT <br /> IMPEDIMENTS TO CLOSURE <br /> Site AmessmeM Incomplete Unacceptable Risk <br /> r Incomplete Component Site Model (CSM) [ Unacceptable Risks to Human Health from Soil <br /> r' Pollutant Sources Have Not Been Adequately Identified or Evaluated r Unacceptable Risks to Human Health tram Vapor Intrusion <br /> F- Extent of Contamination Has Not Beal Determinant r Unacceptable Risk tram Soil Contaminants Entering Surface Runoff <br /> Potential Risks, Thought. And Other Environmenlal Concepts Have Not Been Adequately Identified And r Unacceptable Risk fade Contaminated Groundwater Day Lighting to Surface Water <br /> FAssessed vaporintrusion evaluation not me a <br /> soil . r Other <br /> Land Use lmpedimeAs <br /> r Sensitive Receptor Survey Has Not Beers Completed r Proposed Change In Land Use (Nered Additional RI seller Cleanup) <br /> F- Other r Risk Management Measures Need Agency Oversight (tog. Cap Maintenance) <br /> Inadeouate Source Control r Other <br /> r Feasible Sours Control Not Polaroid <br /> Procedural Impediments <br /> r Remaining Source Poses Threat to Groundwater r Non-Responsive anti I or Recalcitrant Responsible Party <br /> r Other r RP Says They On Not Have Adequate Funds to Initiate or Continue Work at the Site <br /> Plume Instab'1"ty r She Data And Reports Not Up oadell to Gentacker <br /> F- Groundwaur Condemnation Plume Not Stable or Decreasing Measuring Wells Not Yet Abandoned <br /> r Significant Rebound In Concentrations After Repudiation r Indeded to verify effectiveness of remedial action <br /> r Venficath n Monitoring Not Complete <br /> r r Oma Landowner Objects to Case Closure <br /> r Regional Water Board Objects to Closure <br /> Groundwater Indeed <br /> rGroundwaterlmpacledAbowBackgrountl Local Agency ObectsuLaseCbsum <br /> r Groundwater Impacted Above Other Cleanup Goal r Community Objects to Case Closure <br /> r Groundwater WIII Not Meet Relevant WOOS Before me Beneficial Use of Ne Gmur tlwaler is Needed r LOG Suspended <br /> F' Omer r Reimbursements Delayed <br /> Well Impacts r Omer <br /> F- Municipal Wells Impacted Other Impediments <br /> F Municipal Wells Potentially Impacted! <br /> F- Dominate Wens Impacted <br /> F- Domestic Weis Potentially Impacted <br /> r Inication I Industrial Wells Impacted <br /> F- ImgationI Industrial Wens Potentially Impacted <br /> F- De-Watering Well I Sump Impacted <br /> F- De-Watering Well I Sump Potentially lamented <br /> F Omer <br /> BENEFITS OF ADDITIONAL WORK SENSITIVE RECEPTORS LIKELY TO BE IMPACTED AND TIME FRAME FOR IMPACT <br /> r Fimin RI Dau Gaps Municipal Wall <br /> r Complete CSM and Our Understanding of Hytlrogeologic Regime and Fate and Transport Domestic Welk <br /> of Conlamfnank levels� s9�, <br /> 13 <br /> F- Verify Remedial Acted Effectiveness Groundwater Alrea Impmpacmd v Ipor'ev pap <br /> Remove I Reduce Source Mass <br /> F iss/dissolved ditto needs to be iednced to - Surface Wake (Say, Eskor" Stream, Lake) <br /> els needed for NFA consideration Surra drain (Runoff of rsmlapinautl soil) <br /> Indoor Air(Reaitlenllal or Commercial) <br /> F- Protect Designated Berreficial Uses Irrigated I Industrial Will <br /> r Restore Beneficial Uses Oliver <br /> r Protect Existing Water Supply Wells <br /> F- Protect Human Health <br /> F- Protect Ecological Receptors <br /> F- Restore Blighted PmpsM to Productive Use <br /> F Omer <br /> NOTES / COMMENTS <br /> https:Hgeotracker.waterboards.ca.gov/regulators/screens/menu.asp?global_id=T060770007. . . 8/17/2009 <br />