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B?W 172 (THRIFTY) Page 2 of 2 <br /> .► .. <br /> C No Soil Gas Samples C Taken Incorrectly <br /> Exposure Type: <br /> C Residential r- Commercial <br /> Free Product: <br /> (' In Groundwater C In Soil C Unknown <br /> TPH in the Bioattenuation Zone: <br /> C'z 100 mg/kg r Unknown C Soil samples not taken at two depths within 5 ft.zone(only for Scenario 4 with BioZone) <br /> Bioattenuation Zone Thickness: <br /> C' <5 Feet(No BioZone) C >5 Feet and<10 Feet C >_10 Feet and<30 Feet f >_30 Feet F 30ft BioZone Compromised TPH>100mg/kg C Unknown <br /> 02 Data in Bioattenuation Zone: <br /> r' No Oz Data r OZ<4% r Oz>_4% <br /> Benzene in Groundwater: <br /> C z 100 pg/I and<1,000 pg/I 6 i 1,000 pg/I r' Unknown <br /> Soil Gas Benzene: <br /> r'>_85 pg/m3 and<280 pg/m3 C>_280 pg/m3 and<85,000 pg/m3 ('>_85,000 pg/m3 and<280,000 pg/m3 C>_280,000 pg/m3 r Unknown <br /> Soil Gas EthylBenzene: <br /> r_>1,100 pg/m3 and<3,600 pg/m3 t^z 3,600 pg/m3 and<1,100,000 pg/m3 C'z 1,100,000 pg/m3 and<3,600,000 pg/m3 r a 3,600,000 pg/m3 r'Unknown <br /> Soil Gas Naphthalene: <br /> r <br /> 2:93 pg/m3 and<310 pg/m3 r s 310 pg/m3 and<93,000 pg/m3 f-s 93,000 pg/m3 and<310,000 pg/m3 f'>_310,000 pg/m3 r Unknown <br /> 3.Media Specific Criteria:Direct Contact and Outdoor Air Exposure-The site is considered low-threat for direct contact and outdoor air exposure YES <br /> if it meets 1,2,or 3 below.-CLEAR SECTION ANSWERS <br /> EXEMPTION-The upper 10 feet of soil is free of petroleum contamination r YES f' NO <br /> Does the site meet any of the Direct Contact and Outdoor Air Exposure criteria scenarios? YES C NO <br /> 3.1-Maximum concentrations of petroleum constituents in soil are less than or equal to those listed in the following tableL( INKI for the specified depth G YES C NO <br /> below ground surface. <br /> Additional Information <br /> Should this case be closed in spite of NOT meeting policy criteria? YES 0' NO <br /> SPELL CHECK <br /> Save in Progress Save as Final <br /> LOGGED IN AS MCCARTNEYV CONTACT GEOTRACKER HELP <br /> httnc•//uentrncker_waterhoards-ca-unv/regulators/screens/closure nolimasn?global id=TO... 6/20/2013 <br />