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BP #11192 (FORMER MOBIL_ Page 1 of 2 <br /> LTCP Checklist GO GEOTRACKER HOME I MANAGE PROJECTS I REPORTS I SEARCH I LOGOl1T <br /> BP#11192(FORMER MOBIL)(70607700329)-MAP THIS SITE OPEN-ELIGIBLE FOR CLOSURE <br /> 1403 COUNTRY CLUB BLVD ACTIVITIES REPORT CLEANUP OVERSIGHT AGENCIES <br /> STOCKTON,CA 95204 SAN JOAQUIN COUNTY LOP(LEAD)-CASE#:1995123 <br /> SAN JOAQUIN COUNTY PUBLIC WEBPAGE CASEWORKER:GASRIEL GONZALEZ-SUPERVISOR:ADRIENNEELLSAESSER <br /> VIEW PRINTABLE CASE SUMMARY FOR THIS SITE CENTRAL VALLEY RWQCB(REGION 5S)-CASE#:390424 <br /> CASEWORKER:JAMES aARTON-SUPERVISOR;CORI CONDON <br /> CUF Claim#:2413 CUF Priority Assigned:D CUF Amount Paid:$163.394 <br /> THIS PROJECT WAS LAST MODIFIED BY NOEL HENDERSON ON 5/8/2014 4:02:58 PM-HISTORY <br /> THIS SITE HAS SUBMITTALS.CLICK Ian TO OPEN A NEW WINDOW WITH THE SUBMITTAL APPROVAL PAGE FOR THIS SITE. <br /> CLOSURE POLICY THIS VERSION IS FINAL AS OF 5/8/2014 CHECKLIST INITIATED ON 825/2013 CLOSURE POLICY HISTORY <br /> General Criteria-The site satisfies the policy general criteria-CLEAR SECTION ANsWERc_ YES <br /> a.Is the unauthorized release located within the service area of a public waters stem? <br /> Name of Water System: lCalwateF 0- YES C. NO <br /> b.The unauthorized release consists only of petroleum LgLql. (' YES C NO <br /> c.The unauthorized("primary")release from the UST system has been stopped. (' YES C NO <br /> d.Free product has been removed to the maximum extent practicable Liam. (' FP Not Encountered C YES C NO <br /> e.A conceptual site model that assesses the nature,extent,and mobility of the release has been developed haf2j. F YES C NO <br /> f.Secondary source has been removed to the extent practicable knfm. 0- YES C NO <br /> g.Soil or groundwater has been tested for MTBE and results reported in accordance with Health and Safety Code Section C Not Required (' YES C NO <br /> 25296.15. <br /> h.Does a nuisance exist,as defined by Water Code section 13050. C YES (' NO <br /> 1.Media-Specific Criteria:Groundwater-The contaminant plume that exceeds water quality objectives is stable or decreasing in areal extent,andYES <br /> meets all of the additional characteristics of one of the five classes of sites listed below.-CLEAR SECTION ANSWERS <br /> EXEMPTION-Soil Only Case(Release has not Affected Groundwater-Info) C YES (' NO <br /> Does the site meet any of the Groundwater specific criteria scenarios? f' YES C NO <br /> 1.5-The regulatory agency determines,based on an analysis of site specific conditions,that the site under current and reasonably anticipated near-term <br /> future scenarios,the contaminant plume poses a low threat to human health and safety and to the environment and water quality objectives will be achieved F YES C NO <br /> within a reasonable time frame. <br /> 2.Media Specific Criteria:Petroleum Vapor Intrusion to Indoor Air-The site is considered low-threat for the vapor-intrusion-to-air pathway if site- YES <br /> specific conditions satisfy items 2a,2b,or 2c-CLEAR SECTION ANSWERS <br /> EXEMPTION-Active Commercial Petroleum Fueling Facility (' YES C NO <br /> 3.Media Specific Criteria:Direct Contact and Outdoor Air Exposure-The site is considered low-threat for direct contact and outdoor air exposure FNO <br /> if it meets 1,2,Or 3 below.-CLEAR SECTION ANSWERS <br /> EXEMPTION-The upper 10 feet of soil is free of petroleum contamination C YES (' NO <br /> Does the site meet any of the Direct Contact and Outdoor Air Exposure criteria scenarios? C YES (' NO <br /> ADDITIONAL QUESTIONS-Please indicate only those conditions that do not meet the policy criteria: <br /> Exposure Type: <br /> ('Residential C Commercial C Utility Worker <br /> Petroleum Constituents in Soil: <br /> ('s 5 Feet bgs C>5 Feet bgs and 510 Feet bgs C'Unknown <br /> Soil Concentrations of Benzene: <br /> (' >1.9 mg/kg and 5 2.8 mg/kg C>2.8 mg/kg and s 8.2 mg/kg C>8.2 mg/kg and15 12 mg/kg C>12 mg/kg and15 14 mg/kg C>14 mg/kg C Unknown <br /> Soil Concentrations of EthylBenzene: <br /> C>21 mg/kg and 5 32 mg/kg C>32 mg/kg and<89 mg/kg C>89 mg/kg and 5 134 mg/kg C>134 mg/kg and<314 mg/kg C >314 mg/kg C Unknown <br /> Soil Concentrations of Naphthalene: <br /> C >9.7 mg/kg ands 45 mg/kg C>45 mg/kg and:5 219 mg/kg C>219 mg/kg f'Unknown <br /> Soil Concentrations of PAH: <br /> C>0.063 mg/kg and:5 0,68 mg/kg C>0.68 mg/kg ands 4.5 mg/kg C>4.5 mg/kg G Unknown <br /> Area of Impacted Soil: <br /> C Area of Impacted Soil>82 by 82 Feet C Unknown <br /> Additional Information <br /> Should this case be closed in spite of NOT meeting policy criteria? <br /> Ex Iain: <br /> While shallow soil data is sparce, only one sample (SS-PIE-3 @ 5 feet bsg) contained benzene at 2.4 mg/kg exceeding <br /> residential standard of 1.9 mg/kg, however the site is not utilized for residential purposes and the occurrance appears to YES NO <br /> be of limited extent. This appears to be a relatively low mass release with impact to groundwater waning as the secondary <br /> source is depleted. May 2014 UPDATE - SWRCB CUF has considered paved service stations sites to have minimal potential direct <br /> Has this LTCP Checklist been updated for FY 13114? r YES C NO <br /> SPELL CHECK <br /> https:Hgeotracker.waterboards.ca.gov/regulators/screens/closure_policy.asp?global_id=T06... 5/8/2014 <br />