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k � <br /> 2.3 FIELD PROCEDURES <br /> ~ Field procedures followed during this investigation are briefly described in tie foliowing <br /> subsections. <br /> 2.3.1 Halo AbaMonment <br /> Probe holes were abandoned by pouring a bentonite sealant into the hole from the surface. <br /> - 2.3.2 Equipment Decontamination <br /> ush <br /> All equipment was thoroughly cleaned before arrival End.ossd chamber mounted bet the site. 7110 probes and neath <br /> pipes wer9 autorratically decontaminated by means o, - <br /> the CPT rig. Upon withdrawal from <br /> n ton chamber. Pressurized <br /> e;trip. Pressurz was wiped off and washed <br /> ed hot water and detergent <br /> while passing through the decors <br /> were supplied by a steam cleaner to feed the chamber's spray norzles. Rinsate was <br /> contained in 55-gallon drums,and left on site. <br /> 2.3.3 Health and Safety Protection <br /> 4w During the course of this investigation, EPA Leval Q Health and Safety protective gear was <br /> used. Exposure monitorinr, was conducted according to the project si;':ecific Health and <br /> Safoty Plan. F <br /> Iry - j - <br /> i <br /> i! <br /> e <br /> .i <br /> ` I <br />