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ARCO 40595 Page 2 of 2 IF<5 Feel(No Gori r z 5 Feel and<10 Feet r z 10 Feet and<30 Feel r z 30 Feet r 30X BioZone Compromised TPH>loDmglkg r Unknown 02 Gala in'Ioadenui Zone: r No Ox Data r02<4% r02z4% Benzene in Groundwater: r z 100 pgn ane<1000 pgll r z 1,000 PgII r Unknown S r Gas Benzene:BS Pglm and<2130 pg/m s r z 280 tgl ms and<85,000 Pglm3 r a 85,000 Iglm3 and 1280,000 Pglm3 r z 280,000 Pglm3 r Unknown Soil Gas EMylBenzene: s r m Unknown m3 z 1. 600,000 pgrm3 z 3,600,000 pgl 3 r r z 1,100 pg/m'and<3,600 yglms r x 3,600 Pglm3 end<1,100,000 Pgl r 100,1%X1 pglm and<3, Soil Gas Naphthalene: C z 93 pg/m3 and<310 PWM3 r z 310 Pglm3 and<93,000 PWm3 r z 93,000 pglm3 and<310.000 pi r z 310,000 pglm3 is Unknown 3.Media Spo ie Criteria:Direct Contact and Outdoor Air Exposure-The site is considered low-threat lbrdirect contact and outdoor air exposure NO ifit meets 1,2,or 3 below.-C GN MSIAEBS EXEMPTION-The upper 10 feet of soil is free of petroleum contamination r YES r NO Does the site meet any of the Direct Contact and Outdoor Air Exposure criteria scenarios? r YES r NO ADDITIONAL QUESTIONS-Please indicate only Nose conditions that do not meet the policy criteria: Exposure Type; C Residential r Commercial r Utility Worker Petroleum Constituents in Soil; C s 5 Feet bgs r>5 Feet bgs and 510 Feet bgs r Unknown Soil Concentrations of Benzene: r>1 9 mg/kg and 5 2.8 mgJkg r>2.8 ni and 5 8.2 mi r>8.2 mi and s 12 mgMg r>12 mgtkg and s 14 mg/kg a>14 mglkg r Unknown Soil Concentrations of EMylBenzene: r >21 mg/kg and s 32 mg/kg r>32 mg/kg and s 89 mgVkg r>89 mg/kg and 5134 mg/kg r>134 mglkg and s 314 mgkg r >314 mg/kg r Unknown Soil Concentrations of Naphthalene: r>9.7 mg/kg and 5 45 mglkg r >45 mglkg and s 219 mglkg r>219 mg/kg r Unknown "I Concentrations of PAH: 17>0063mg/kgand50,68mg/kg r>068mgkgands4.5mi r>4.5mgag rUnknown Area of Impacted Soil: r Area of Impacted Soil>82 by 82 Feet r Unknown Additional Information Should this rase be closed in spite of NOT meeting policy criteria? r YES r NO Has Nis LTCP Checklist been updated for FY 14115? r VES r NO SPELL CHECK Save Form as Partial/ Completed Save Form as Complete LOGGED IN AS HENDERSONN CONTACT GEOTF CKFR HELR https:Hgeotracker.waterboards.ca.gov/regulators/screens/closure_policy.asp?global_id=T06... 4/6/2015