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SIERRA LUMBER CASE#2 Page 2 of 2 <br /> �3 <br /> � Vk� <br /> �t,t <br /> / 5Ao Soil Gas Samples r'Taken Inconectly <br /> lIIIII���EEEz///xpposure Type: <br /> C Residential Is Commercial <br /> Free Product: <br /> r In Groundwaler r In Soil r Unknown <br /> TPH in Me Bic aHenuafion Zone: <br /> r>100 mgtkg r Unknown C Soil samples not taken at two depths within 5 8.zone(only for Scenario 4 with BioZone) <br /> Bioadenuation Zone ThicIt as' - (:•x 10 Feet and<30 Feel r z 30 Feet f 30R BioZone Compromised TPH>100mglkg r Unknown <br /> r <5 Feet(No BioZone) r x b Feel and<10 Feet <br /> 02 Data In Bioalfenuation Zone: <br /> ,�No 02 Data 17' 0z<4% C'r0z z 4% <br /> Benzene In Groundwater: <br /> r x 100 pgll and<1,000 99A 141,000 pgll r Unknown -// <br /> Soll Gas Benzene: 3 [ ms ✓Unknown <br /> r z 85 pglm3 and<280 pg/m3 r'x 280 pg/m3 and<85,000 pglm3 r x 85,000 pg/m3 and<280,000 pg/m 2 280,000 p9l <br /> Soil Gas EthylBenzene: a (.. a Opp m3 r z 3,600,000 pglin Unknown <br /> r z 1,100 pg/m3 and<3,600 pg/m3 r z 3,600 pglm3 and<1,100,000 pgao z 1,100,1100 pglm end<3,600, pg/ <br /> Sol[Gas Naphthalene: s 3 C z 310,1 0 pglm3 ("ffrlkn.n <br /> r z 93 pglm3 and<310 pglm3 (-a 310 pg/m3 and<93,000 pglm3 r x 93,000 pg/m and<310,000 pglm <br /> 3.Media Specific Criteria:Direct Contact and Outdoor Air Exposure-The site is considered low-threat for direct contact and outdoor sir exposure <br /> VES <br /> if It meets 1,2,or 3 below.-al-'-SECTION ANSV.ERs (- YES O <br /> EXEMPTION-The upper 10 feel of sail is free of petroleum contamination r NO <br /> Does the site meet any of the Direct Contact and Outdoor Air Exposure or equal <br /> so those s7 <br /> YES <br /> r9 for the ctietl depth YES r NO <br /> 3.1-Maximum concentrations of petroleum constituents in soil are less than <br /> or equal to those listed in the followi table(LINKt Pa <br /> below ground surface. <br /> Additional Information - (- YES r NO <br /> Should this was be closed in spite of NOT meeting policy criteria? <br /> SPELL CHECK <br /> SaveinProgress FS <br /> aveas Final <br /> nEoVkACKER HELP <br /> LOGGED IN AS HENDERSONN <br /> https://geotracker.waterboards.ca.gov/regulators/screens/closure_policy.asp?global_id=TO... 7/15/2013 <br />