SITE INFORMATION AND CORRESPONDENCE_FILE 3

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13P#172 (THRIFTY) Page 2 of 2 Exposure Type �*Residential r Commercial Free Product: t^ In Groundwater (- In Soil l"Unknown TPH in the Bioattenuation Zone: r >_100 mg/kg r Unknown C' Soil samples not taken at two depths within 5 ft.zone(only for Scenario 4 with BioZone) Bfoattenuation Zone Thickness: t^ <5 Feet(No BioZone) r' >_5 Feet and<10 Feet C z 10 Feet and<30 Feet >_30 Feet f' 30ft BioZone Compromised TPH>100mg/kg Unknown 02 Data in Bioattenuation Zone: 6 No 02 Data r 02<4% 02z4% Benzene in Groundwater: r >_100 pg/l and<1.000 pg/I r'z 1.000 pg/I C Unknown Soil Gas Benzene: /'a 85 pg/m3 and<280 pg/m3 C >_280 pg/m3 and<85,000 pg/m3 f z 85,000 pg/m3 and<280,000 pg/m3 f'2:280,000 pg/m3 C' Unknown Soil Gas EthylBenzene: t'z 1,100 pg/m3 and<3,600 pg/m3 f' a 3,600 pg/m3 and<1.100,000 pg/m3 t' >_1,100,000 pg/m3 and<3,600,000 pg/m3 t^2!3,600,000 pg/m3 r Unknown Soil Gas Naphthalene: /'>_93 pg/m3 and<310 pg/m3 C >_310 pg/m3 and<93,000 pg/m3 t' i 93,000 pg/m3 and<310.000 pg/m3 f'>_310,000 pg/m3 /` Unknown 3.Media Specific Criteria:Direct Contact and Outdoor Air Exposure-The site is considered low-threat for direct contact and outdoor air exposure YES if it meets 1,2,or 3 below.-cLEAR sEcnoN ANsWERs EXEMPTION-The upper 10 feet of soil is free of petroleum contamination f' YES f' NO Does the site meet any of the Direct Contact and Outdoor Air Exposure criteria scenarios? t• YES C' NO 3 1-Maximum concentrations of petroleum constituents in soil are less than or equal to those listed in the following tableLI INK)for the specked depth below ground surface. f' YES r NO Additional Information Should this case be closed in spite of NOT meeting policy criteria? f' YES f' NO Has this LTCP Checklist been updated for FY 14/15? 0' YES NO SPELL CHECK Save Form as Partially Completed Save Form as Complete LOGGED IN AS HENDERSONN CONTACT GEOTRACKER HELP httns-//oentracker-waterhoards-ca-crov/repulators/screens/closire nolicv-asn?irlohal id=TO--. 9/19/2014