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ROEKCONSTRUCTION eassessessassassessiai <br /> }i �.d Pagel of 2 <br /> Path to Closure Plan Ga <br /> ROEK CONSTRUCTION(70607700163)-MAP MIS clic ' o s K IMA ° 19EBgTfl hEFdB4t11 LOG <br /> 102 WILSON WAYS OPEN-REMEDI4TION <br /> STOCKTON,CA 95205 ACTIVITIES REPORT CUANUP OVERSIGHTAGEIC111 <br /> SAN JOAQUIN COUNTY PUBLIC SAN JOAQUIN COUNTY LOP(LE D)-C,,SE,9031 <br /> VIEWPgINTABLF CA MMggY FOR MI«I'Ix PAG CAALVAUER:gNDF/e<aNIXIVA/ uM-SUPERWSOR:ADRIENNEELLSgE55ER <br /> CENTRAL VALLEY SEWORKRMCB(REGION 5S)-CASE s:390232 <br /> CASEWORKER:JAMES e,IRTO -sUPERVISOR:LOP/CONDON <br /> CUF CMIm a:IM 78a CUFPrloriry quigned:B CUF Amoum PaM:e124B q2P <br /> THIS PROJECT WAS LAST MODIFIED BV r N aamwe,.•• <br /> mar_ON 8232014 B'45:D1 AM-NIMORY <br /> 1HIa SITE HAS SUBMITTALS.CLK:KHM TO OPEN A NEW WINDOW WITN TIE RLBMi APPROVAL PAGE FOR MM SITE. <br /> CLOSURE POLICY THIS VERSION IS FINAL AS OF 6/2312014 CHECKUSTRIMATEDOW anAM3 <br /> General Criteria-The site satisfies the policy general cdtena-CLEAR <br /> SECTION MeNERE <br /> a.Is the unauthorized release located within Me service area of a ublic water s stem? NO <br /> NameM Wafer Syahm: CIry NSION<ton <br /> r YES r NO <br /> b.The unaulhoroe t release consists only of petroleumiLQl. <br /> r <br /> c.The unauMor¢eM rim <br /> ('pary')release from the UST system has been stoppedla YES NO. <br /> d.Free product has been removed to the maximum extent practicable iii r YES r NO <br /> (• FP Not Encountered r YES r NO <br /> e.A conceptual site motlal that assesses the nature,extent,and mobility of the release has been developed . <br /> petl i <br /> f.Seconds f source has been removed to the extent mgicabr YES r NOle in <br /> Impediment to Removing Secondary Source(Chock all that Apply): <br /> r Remediation Mas Not Been Attempted <br /> F Remeoiation Was Designed Incorrectly <br /> F Remediation Was Shut Oa Piemsemsty r VES as NO <br /> F Poor Remediation Oast <br /> r Other - VaOose zone sdl tas been remetliatetl qn <br /> gi Soil or groundwater has been tested for MTBE ant resuts reported in accordance with Health and Safety Code Section <br /> 25296.15. <br /> r Not Required r YES r NO <br /> h.Does a nuisance exist 89 Mitred by Water Code section 13050. r YES r NO <br /> 1.Media-Specific Criteria:Groundwater-The contaminant plume that exceeds water quality objectives is stable or decreasing in areal extent,and <br /> meets all of the addig'onal characteristics of one of Me five Gasses of sites listed below.- i< TK)N AN •� NO <br /> EXEMPTION-Soil Only Case(Release has not Affected Groundwater-Info) r YES r NO <br /> Does Me site meet any of the Groundwater specific criteria scenarios? r YES le NO <br /> ADDITIONAL QUESTIONS-Please Indicate only Mose conditions Mat do not meet the policy criteria: <br /> Plume Length(That Exceeds Water Quality Objectives): <br /> C a 100 Feet and 1250 Feet r 1250 Feet and<1,000 Feet r a 1,000 Feel r Unknown <br /> Plume is Stable or Decreasing M AREAL Extent: <br /> r No r Unknown <br /> Free Product in Groundwater: <br /> r Yes r No r Unknown <br /> Free Product Has Been Removed to the Maximum Extent Practicable <br /> C No r Unknown <br /> For sites with free product,the Plume Has Bcen Stable or Decreasing for 5-Years(info) <br /> C No r Unknown <br /> For sites with free product,owner Willing to Accept a Land Use Restriction(if required): <br /> I' No r Unknown <br /> Free Product Extends Offsite: <br /> C Yes r Unknown <br /> Benzene Concentration <br /> r a 1,000 pg/I and<3,000 pga or i 3,000 pga r Unknown <br /> MTBE Concentration: <br /> r a 1,000 pg(I r Unknown <br /> Nearest Supply Well(From Plume Boundary): <br /> r 1250 Feet r 1250 Feet and s 1,000 Fest r Unkrwwn <br /> Nearest Surtace Water Body(From Plume Boundary): <br /> r s 250 Fast r 1250 Feet End 51,000 Feet r Unknown <br /> 2.Media Specific Criteria:Petroleum Vapor Intrusion to Indoor Air-The site is considered low-threat for the vapor-intrusion-ho-aft,pathway if site- , S <br /> specific conditions safisyitems 2a,2b,or 2c-CLEAR sEcnoN ANswERs <br /> EXEMPTION-Active Commercial Petroleum Fueling Facility r YES r NO <br /> Does the site meet any of the Petroleum Vapor Intrusion to Indoor Air specific criteria scenarios? r YES r NO <br /> 21,-Petroleum Vapor Intrusion to Indoor Air-A site-apeoitc risk assessment for the vapor intrusion pathway has been prepareM that demonshstes human <br /> health is protectetl to the satisfaction of the regulatory agency. r YES r NO <br /> https://geotracker.waterboards.ca.gov/regulators/screens/closure—Policy.asp?global_id=TO... 6/23/2014 <br />