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+ •FRONTIER TRANSPORT 6 A Page 2 of 2 <br /> I.For bioattenuation zone without oxygen measurements or oxygen<4%and benzene concentration are<100 pg/L,she bioattenuation zone:Is a <br /> continuous zone that provides a separation of at least 5 feet vertically between the dissolved phase benzene and the foundation of existing or potential X YES r NO <br /> building;and contain total TPH<100 mglkg throughout the entire depth of the bioattenuation zone. <br /> ii.For bioattenuation zone without oxygen measurements or oxygen<4%and benzene concentration are>100 pg/L but<1,000 pglL,the bioattenuation <br /> zone:Is a continuous zone that provides a separation of at least 10 feet vertically between the dissolved phase benzene and the foundation of existing or r YES r NO <br /> potential building,and contain total TPH<100 mglkg throughout the entire depth of the bioadenuation zone. <br /> ill.For bioattenuation zona with oxygen z 4%and benzene concentration are<1,000 pglL,the bioattenuation zone:Is a continuous zone that provides a <br /> separation of at least 5 fact vertically between the dissolved phase benzene and the foundation of existing or potential building,and contain total TPH r YES r NO <br /> <100 mglkg throughout the entire depth of the bioattenuation zone. <br /> 3.Media Specific Criteria:Direct Contact and Outdoor Air Exposure-The site is considered low-fhreat for direct contact and outdoor air exposure YES <br /> If it meets 1,Z or 3 below.-cL SECTION ANSN£Rs <br /> EXEMPTION-The upper 10 feet of soil is free oT petroleum contamination r YES r NO <br /> Does Me site meet any of the Direct Contact and Outdoor Air Exposure criteria scenarios? t: YES r NO <br /> 3.1-Maximum concentrations of petroleum constkuents in soil are less than or equal to those listed in the following tableL( M for the specked depth r• YES r NO <br /> below ground surface. <br /> Adtlitione Infomr, on <br /> Should this case be closed in spite of NOT meeting policy criteria? r YES G NO <br /> SPELL CHECK <br /> Save in Progress F Saveas Final <br /> LOGGED IN AS MCCARTNETV CONTACT GEOTt CKER HELP <br /> https://geotracker.waterboards.ca.gov/regulators/screens/closure-Policy.asp?global_id=TO... 6/12/2013 <br />