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H.`S AUTO REPAIR Page 2 of 2 C No Soil Gas Samples C Taken Incorrectly Exposure Type: C Residential C Commercial Free Product C In Groundwater C In Soil C Unknown TPH in the Bioattenuation Zone C z 100 mglkg (-- Unknown C Soil samples not taken at two depths within 5 it,zone(only for Scenario 4 with BioZone) Bioattenuation Zone Thickness: C <5 Feet(No BioZone) C z 5 Feet and<10 Feet C z 10 Feet and,30 Feet C z 30 Feet C 30ft BioZone Compromised TPN>100mg/kg is Unknown 02 Data in Bioattenuation Zone No 0.Data C 02<4% C 02?4% Benzene in Groundwater: o 100 pgll and<1,000 pg/I 0-2:1,000 pgS (-Unknown Soil Gas Benzene I C 1-85 pg/m3 and<280 pg/m3 (->-280 pg/m3 and<85,000 pg/M3 C z 85,000 pg/m3 and 280,000 pg/m3 C>-280,000 pg/M3 Unknown Soil Gas EthylBenzene C s 1,10C),000 pg/M3 Unknown >-1,100 i.p;[m3 and<3,600 pg/m3 13,600pg/m3anc1<1,100,000pglm3 and 1 3,600,000 jig/m3 C z 3,600,000 fg/M3 Soil Gas Naphthalene C z 93 pg1m3 and<310 pglm3 C 2!310 pglm3 and<93,000 pglm3 93,000 pglm3 and,310,000 pg/m3 (-r!310,000 pgah3 (*-Unknown 1 Media Specific Criteria:Direct Contact and Outdoor Air Exposure-The site is considered low-threat for direct contact and outdoor air exposure NO ifitmeets 1,2,or below.-CLEAR SECTION ANSWERS EXEMPTION-The upper 10 feet of soil is free of petroleum contamination C YES to NO Does the site meet any of the Direct Contact and Outdoor Air Exposure criteria scenarios? C YES to NO ADDITIONAL QUESTIONS-Please indicate only those conditions that do not meet the policy criteria: Exposure Type: C Residential C Commercial C Utility Worker Petroleum Constituents in Soil: C 5 5 Feet bgs C >5 Feet bgs and_<10 Feet bgs (*- Unknown Soil Concentrations of Benzene C ,1,9 mglkg and s 2.8 mg/kg C>2.8 mglkg and s 8.2 mg/kg C >8.2 mg/kg and 5 12 mg/kg C >12 mg/kg and:5 14 mg/kg C>14 orgirig Unknown Soil Concentrations of EthylBenzene C >21 mg/kg ands 32 mg/kg C>32 mg/kg and S 89 mgtkg C >89 mg/kg and!;134 mg/kg C >134 mgtkg and e 314 mg/kg C>314 mg/kg Unknown Soil Concentrations of Naphthalene >9.7 mg/kg and s 45 mg/kg C >45 mg/kg and s 219 mglkg C >219 mglkg C- Unknown Soil Concentrations of PAH C>0,063 mg/kg and s 0,68 mglkg C>0.68 mglkg and 5 4.5 mg/kg C>4.5 mg/kg Unknown Area of Impacted Soil I C Area of Impacted Soil>82 by 82 Feet (-Unknown [Additional Information Additional case be closed in spite of NOT meeting policy criteria? C YES C- NO SPELL CHECK Save in Progress Save as Final LOGGED IN AS HENDERSONN CONTACT GEOTRACKER HELP https:Hgeotracker.waterboards.ca.gov/regulators/screens/closure_policy.asp'?global—id=TO... 7/22/2013