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ARCO #0595 Page 2 of 2 r<5 Fact(No BioZone) z 5 Feet and<10 Feet r z 10 Feel and<30 Feet r z 30 Fact C 30ft BloZone Compromised TPH>100nglkg r Unknown 02 Data in Sicanenuation Zone: G No Os Data COi<4% rOxz 4% Benzene in Groundwater: r z 100 pull and<1,000 pg, r z 1,000 pga r Unknown Soil Gas Benzene: C z 85 pg/m3 and<280 Pg4n3 r z 280 p9/m3 and<85,000 pg/m3 C z 05,000 pghns and<280,000 pgm.3 r z 280,OOD pgnm3 Is Unknown Soil Gas EthylBenzene: C z 1,100 pg/m3 and<3,600 pg/m3 C z 3,600 Pg/m3 and<1,100,000 pgIm3 r z 1,100,000 pg/m3 and<3,600,000 pglm3 C a 3,600,ODD pglm3 rUnknown Soil Gas Naphthalene: r z 93 Pg/m3 and<310 pgen3 C z 310 pg/m3 and<93,000 pg/m3 r z 93,000 pgnn3 and<310,000 pg4n3 r z 310,000 Pg/m3 IF 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 1,2,or 3 below.-og6a = nouw< R< EXEMPTION-The upper 10 feet of soil is free of petroleum contamination C YES G NO Does the site meet any of the Direct Conrad and Outdoor Air Exposure criteria scenados9 C YES to NO ADDITIONAL QUESTIONS-Please Indicate only those conditions that do not meet the policy criteria: Exposure Type; C Residential C Commercial r Utility WOBer Pandeum Constituents in Soil: R s 5 Fact bgs C >5 Feet bgs and 510 Feet bgs C Unknown Soil Concentrations of Benzene: r >1.9mgkgand s2.8mgk9 C>2.8mgkgand s82mgkg r>8.2mglkgand sl2mg/kg r>12mgkgand sl4mgkg R>14mgkg rUolmown Soil Concentrations of EMylBenzene: r>21 mgkg and s 32 mgkg C>32 mgkg and s 89 mpg r>89 mg/kg and s 134 mgkg r>134 mgkg and s 314 mgkg r>314 mgkg rUnknown Soil Concentrations of Naphthalene: r>9.7 mg/kg and s 45 mpg r>45 mgkg and s 219 mg/kg r>219 mg/kg r Unknown Soil Concentrations d PAH: r >0.063 mg/kg and s 0,68 mgAg C>068 mgkg and s 4.5 mg/kg r>4.5 mg/kg is Unknown Area d Impacted Soil: r Area of Impeded SWI>82 by 82 Feet G:Unknown Additional Information Should this case be closed in spite of NOT meeting policy ukeria9 C YES NO Has this LTCP Checklist been updated for FY 14/159 R YES C NO SPELL CHECK Save Form as paNall Completed Save Form as Complete LDGGED IN AS HENDERSONN CONTACT GECTRACKER HELP https://geotracker.waterboards.ca.gov/regulators/screens/closure_policy.asp?global_id=TO... 4/13/2015