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*HAUL STORE #70950 - Page 2 of 2 Bloattenuation Zone Thickness C <5 Feet(No BioZone) C z 5 Feet and<10 Feet C'>_10 Feet and<30 Feet C' >_30 Feet r 30ft BioZone Compromised TPH>100mg/kg C' Unknown 02 Data in Bioattenuation Zone G No 02 Data C'O2<4% C' 02?4 Benzene in Groundwater: C >_100 pg/I and<1,000 pg/1 C >_1,000 pg/I (' Unknown Soil Gas Benzene C z 85 pg/m3 and<280 pg/m3 C >_280 pg/m3 and<85,000 pg/m3 r>_85,000 pg/m3 and<280,000 pg/m3 t^>_280,000 pg/m3 C'Unknown Soil Gas EthyiBenzene C' z 1,100 pg/m3 and<3,600 pg/m3 C-z 3,600 pg/m3 and<1,100,000 pg/m3 C' >_1,100,000 pg/m3 and,3,600,000 pg/m3 C'>_3,600,000 pg/m3 Ci Unknown Soil Gas Naphthalene: ("z 93 pg/m3 and<310 pg/m3 z 310 pg/m3 and<93,000 pg/m3 C't 93,000 pg/m3 and<310,000 pg/m3 C-t 310,000 pg/m3 0 Unknown 3.Media Specific Criteria:Direct Contact and Outdoor Air Exposure-The site is considered low-threat for direct contact and outdoor air exposure NO if it meets 1,Z or 3 below.-CLEAR SECTION ANSWERS EXEMPTION-The upper 10 feet of soil is free of petroleum contamination r YES F NO Does the site meet any of the Direct Contact and Outdoor Air Exposure criteria scenarios? C YES G NO ADDITIONAL QUESTIONS-Please indicate only those conditions that do not meet the policy criteria: Exposure Type C'Residential C Commercial (*--Utility Worker Petroleum Constituents in Soil: C•'s 5 Feet bgs C >5 Feet bgs and s10 Feet bgs C Unknown Soil Concentrations of Benzene: C' >1 9 mg/kg and<2.8 mg/kg C >2.8 mg/kg and<8.2 mg/kg r>8.2 mg/kg and s 12 mg/kg r>12 mg/kg and s 14 mg/kg f✓>14 mg/kg C Unknown Soil Concentrations of EthylBenzene: _ C >21 mg/kg and s 32 mg/kg C >32 mg/kg and:c 89 mg/kg C' >89 mglkg and s 134 mglkg C->134 mg/kg and s 314 mg/kg 314 mg/kg C Unknown Soil Concentrations of Naphthalene C' >9 7 mg/kg and 5 45 mg/kg C >45 mg/kg and s 219 mg/kg C >219 mg/kg r Unknown Soil Concentrations of PAH: C >0.063 mg/kg and s 0,68 mg/kg (- >0.68 mg/kg and 5 4.5 mg/kg C >4.5 mg/kg F"Unknown Area of Impacted Soil: C'Area of Impacted Soil>82 by 82 Feet C Unknown Add iUonal Information Should this case be closed in spite of NOT meeting policy criteria? C YES GNO SPELL CHECK LOGGED IN AS HENDERSONN CONTACT GEOTRACKER HELP https://geotracker.waterboards.ca.gov/regulators/screens/closure policy.asp?global id=TO... 7/17/2013