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`BOD SERVICE CENTER Page 1 of 2 <br /> LTCP Checklist Ga GEOTRACKER HOME I MANAGE PROJECTS t REPORT^t$ERRCH I LOGO T <br /> BOYD SERVICE CENTER{TO607700728}-MAR-THIS SITE OPEN-ELIGIBLE FOR CLOSURE <br /> CLEANUP OVERSIGHT AGENCIES <br /> 560 TRACY BLVD ACTIVITIES REPORT SAN JOAQUIN COUNTY LOP(LEAD)-CASE 0:1421 I <br /> TRACY,CA 95376 CASEWORKER:LISA MEDINA-SUPERWSOR:ADRIENNE ELLSAESSER <br /> SAN JOAQUIN COUNTY PUBLIC WEBPAGE CENTRAL VALLEY RWOCD(REGION 5S)-CASE t:390904 <br /> VIEW PRINTABLE CASE SUMMARY FOR THIS%TE CASEWORKER:�r -SUPERVISOR:CORI CONDON <br /> THIS PROJECT WAS LAST MODIFIED BY NUEL NENDERSONON&52013 11:15:D4 AM-HISTORY <br /> THIS SITE HAS SUBMITTALS.CLICK IMM TO OPEN ANEW WINDOW WITH THE SUBMITTAL APPROVAL PAGE FOR THIS SITE. <br /> CLOSURE POLICY THIS VERSION IS FINAL AS OF 8/5/2013 CHECKLIST INITIATED ON W112013 CLOSUREPOU <br /> I <br /> F[GenoralCriterla-The site satisfies the policy general Criteria-CLEAR SECTION ANSWERSzed release located within the service area of a ublic waters stem? YES G NO <br /> r System:d release consists only of petroleum YES r NO <br /> c.The unauthorized{'primary')release from the UST system has been slopped. - YES G NO <br /> d.Free product has been removed to the maximum extent practicable info. .G FP Not Encountered (Z YES G NO <br /> e.A conceptual site model that assesses the nature,extent,and mobility of the release has been developed info. r• YES fi NO <br /> I.Secondary source has been removed to the extent practicable it f]. r, YES (7 NO <br /> g.Soil or groundwater has been tested for MTBE and results reported in accordance with Health and Safety Code Section rd Not Required C• YES G NO <br /> 25296.15_ <br /> h.Does a nuisance exist,as defined by Water Code section 13050, G 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 YE;S <br /> meets all of the additional characteristics of one of the rove classes of sites listed below.-CLEAR SECTION ANSINERS <br /> EXEMPTION-Sail Only Case(Release has 12ol Affected Groundwater-Info) Q YES r' No <br /> Does the site meet any of the Groundwater specific criteria scenarios? E• YES G NO <br /> I <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 (3- YES G 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 pathwayif site- NO <br /> specific conditions satisfy items 2a,2b,Or 2C-CLEAR SECTION ANSWERS <br /> EXEMPTION-Active Commercial Petroleum Fueling Facility G YES (F, NO <br /> Does the site meet any of the Petroleum Vapor Intrusion to Indoor Air specific criteria scenarios? G YES r'! NO <br /> ADDiT10NALQUESTIONS-Please Indicate only those conditions that do not meet the policy criteria: <br /> Soil Gas Samples: <br /> (_,No Soil Gas Samples G Taken Incorrectly <br /> Exposure Type: <br /> C)Residential Q Commercial <br /> Free Product: <br /> G In Groundwater C,In Soil G Unknown <br /> TPN in the Bioattenuation Zone <br /> C-'z 100 mglkg G Unknown G Soil Samples not taken at two depths within 5 ft.zone(only for Scenario 4 with BioZone) <br /> Bioattenuation Zone Thickness: <br /> G<5 Feet(No BioZone) Ct 5 Feet and<10 Feet G t 10 Feet and<30 Feet G z 30 Feet G 30ft BioZone Compromised TPH>IODmgtkg G.Unknown <br /> 02 Data in Bioattenuation Zone: <br /> C*'.No Oz Data G Oz<4% r Oz a 4% <br /> Benzene In Groundwater: <br /> G>_100 ygri and c 1,000 pgll G z 1.0W pg/l G Unknown j <br /> Soil Gas Benzene: <br /> G 2 85 pglm3 and<280 pg1m3 (C a 280 pglm3 and<85,000 pg1m3 G z 85,000 pgrm3 and<280,000 uglm3 r;�280,000 pgrm3 C'Unknown <br /> Soil Gas EthytBenzene: I <br /> r'z 1,100 pgIM3 and<3,600 pglm3 G z 3,600 pgrm3 and a 1,100,000 pgtm3 G z 1,100,000 pg/m3 and<3,600,000 Pg/m3 G a 3,600,000 pg/M3 r Unknown <br /> Soil Gas Naphthalene: <br /> G z 93 pg/M3 and<310 pg/m3 G t 310 pglm3 and<93,000 pgrm3 G z 93,000 uglm3 and<310,000 pgrm3 G a 310,OOD VgIrn - Unknown <br /> 3.Media Specific Criteria:Direct Contact and OutdoorAir Exposure-The site is considered low-threat for direct contact and outdoor air exposure YES <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 G YES C' NO <br /> Does the site meet any of the Direct Contact and Outdoor Air Exposure criteria scenarios? C� YES G N0 <br /> 3.1-Maximum Concentrations of petroleum constituents in soil are less than or equal to those listed In the following table tLINKI for the specified depth <br /> below ground surface, G, YES (7) NO <br /> i <br /> i <br /> r <br /> f <br /> htt s:ll eotracker.waterboards.ea. ov/re ulators/screens/closure <br /> p g g g _policy.asp?globai_id=T06... 8/5/2013 <br /> r <br />