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The following represents minimum sampling criterion required for closure compliance. Soil samples collected shall be <br />representative of native soils beneath the tank's invert (tank's bottom) at a collection depth not to exceed 2 - 4 feet. If <br />contamination is documented during closure, an Unauthorized Release Notification must be completed and submitted within <br />five (5) working days pursuant to California Health & Safety Code, Section 25295. <br />a i # <br />•' - 4 <br />ill A <br />DISPENSER SAMPLES <br />I Sample beneath each dispenser <br />(-� <br />PIPING SOIL SAMPLES <br />Sample- <br />I _ <br />LEAD <br />•' - 4 <br />ill A <br />10Ill 4 ` -#1 <br />s #`7 j • <br />TANK <br />TPH-D <br />TOTALIF <br />BTX & E CL Hill OXYGENATESMETALS <br />ICONTENTS <br />LEAD <br />8015 8015 <br />8020 8010• <br />;• <br />•• <br />8260 826 <br />8260 8240 7420 1 <br />8260+ Ill <br />7421 <br />8260 <br />CHLOR.8260 <br />SOLVENTS <br />NONCHLOR <br />i <br />ISOLVENTS <br />]WASTENUSED OIL <br />OR <br />I <br />101 <br />UNKNOWNx. <br />�I <br />CONTENTS <br />Notes: <br />1. EPA Method 8260B analyses must include all analytes listed in the method plus fuel oxygenates <br />methyl -tertiary -butyl ether (MTBE), diisopropyl ether (DIPS), ethyl -tertiary -butyl ether (ELBE), tertiary - <br />amyl -methyl ether (TAME), tertiary -butanol (TBA), methanol and ethanol and fuel additives 1,2- <br />dichloroethane (1,2 -DCA) and ethylene dibromide (EDB or 1,2-dibromoethane). <br />ill Ill llijli�1111111111111 ill "Ill ill 11 1111111 ill l 11 iii,iilli 11 <br />1111 Ilf! <br />■x •# i.•� • �.. !- • `j •l. ski i. <br />�,• • • • •- • - 111 - „.; • • -.. , <br />4. Non-proprietary, performance based analytical methods may be used with approval of Regional Board <br />Revised 02/20/09 <br />9 <br />