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CITY OF STOCKTON RT')EVELOPMENT AGENCY Page 2 of 2 �.. I Nearest Surface Water Body(From Plume Boundary): r s 250 Feet l'>250 Feet and s 1,000 Feet G Unknown 2.Media Specific Criteria:Petroleum Vapor Intrusion to Indoor Air-The site is considered low-threat for the vapor- NO intrusion-to-air pathway if site-specific conditions satisfy items 2a,2b,Or 2c-CLEAR SECTION ANSWERS EXEMPTION-Active Commercial Petroleum Fueling Facility r YES t: NO Does the site meet any of the Petroleum Vapor Intrusion to Indoor Air specific criteria scenarios? f YES 6 NO ADDITIONAL QUESTIONS-Please indicate only those conditions that do not meet the policy criteria: Soil Gas Samples: C'No Soil Gas Samples C Taken Incorrectly Exposure Type: C Residential C Commercial Free Product: C In Groundwater r-In Soil �-Unknown TPH in the Bioattenuation Zone: r'z 100 mg/kg f'Unknown C Soil samples not taken at two depths within 5 ft.zone(only for Scenario 4 with BioZone) Bioattenuation Zone Thickness: r`<5 Feet(No BioZone) r'z 5 Feet and<10 Feet t^z 10 Feet and<30 Feet f->_30 Feet C 30ft BioZone Compromised TPH>100mg/kg r Unknown 02 Data in Bioattenuation Zone: r'No 02 Data ('02<4% 02 z 4% Benzene in Groundwater: C>_100 Ng/I and<1,000 Ng/I z 1,000 Ng/I (-Unknown Soil Gas Benzene: C s 85 Ng/m3 and<280 Ng/m3 C i 280 pg/m3 and<85,000 Ng/m3 (-z 85,000 Ng/m3 and<280,000 Ng/m3 s 280,000 Ng/m3 f'Unknown Sal Gas EthylBenzene: r't 1,100 pg/m3 and<3,600 Ng/m3 z 3,600 Ng/m3 and<1,100,000 pg/m3 r>1,100,000 Ng/m3 and<3,600,000 Ng/m3 /'z 3,600,000 Ng/m3 6 Unknown Sal Gas Naphthalene: C 2:93 yg/m3 and<310 Ng/m3 f'>_310 Ng/m3 and<93,000 pg/m3 C z 93,000 Ng/m3 and<310,000 Ng/m3 z 310,000 pg/m3 a Unknown 3.Media Specific Criteria: Direct Contact and Outdoor Air Exposure-The site is considered low-threat for direct contact No and outdoor air exposure if it meets 1,2,Or 3 below.-CLEAR SECTION ANSWERS EXEMPTION-The upper 10 feet of soil is free of petroleum contamination C YES G NO Does the site meet any of the Direct Contact and Outdoor Air Exposure criteria scenarios? r YES f' NO ADDITIONAL QUESTIONS-Please indicate only those conditions that do not meet the policy criteria: Exposure Type: C Residential (-Commercial C Utility Worker Petroleum Constituents in Soil: r's 5 Feet bgs (->5 Feet bgs and s10 Feet bgs ('Unknown Sal Concentrations of Benzene: r>1.9 mg/kg ands 2.8 mg/kg C>2.8 mg/kg and<8.2 mg/kg (->8.2 mg/kg ands 12 mg/kg C>12 mg/kg and s 14 mg/kg >14 mg/kg f'Unknown Sal Concentrations of Ethyl Benzene: (->21 mg/kg and s 32 mg/kg (->32 mg/kg ands 89 mg/kg >89 mg/kg and<_134 mg/kg t^>134 mg/kg and s 314 mg/kg >314 mg/kg Unknown Soil Concentrations of Naphthalene: C>9.7 mg/kg and s 45 mg/kg (->45 mg/kg and s 219 mg/kg (->219 mg/kg t:Unknown Soil Concentrations of PAH: f->0.063 mg/kg and s 0,68 mg/kg C>0.68 mg/kg and<4.5 mg/kg C>4.5 mg/kg G Unknown Area of Impacted Soil: Area of Impacted Soil>82 by 82 Feet f'Unknown Additional Information Should this case be closed in spite of NOT meeting policy criteria? O YES t' NO SPELL CHECK Save in Progress Save as Final LOGGED IN AS MAMASITALISA CONTACT GEOTRACKER HELP https:Hgeotracker.waterboards.ca.gov/regulators/screens/closure_policy.asp... 6/24/2013