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BEM • • BEMSystemrj7 <br /> SYSTEMS INC. BE1359 <br /> Holz Rubber Co..Inc. <br /> Arial �calT+a�alnetsr Ana 'ealMethodoto <br /> TCL VOC+10 USEPA 624 <br /> TCL BNA+20 USEPA 625 <br /> TCL Pesticides/PCBs USEPA 608 <br /> TAL Metals/Cyanide USEPA 200.7 <br /> TPHC USEPA 418.1 <br /> H USEPA 150.1 <br /> Soil cuttings generated from the installation of the temporary wells will be composited and analyzed as follows: <br /> Asla1 call�arametet Anal icalMethoddln <br /> TCL VOC+10 USEPA 8240 <br /> TCL BNA+20 USEPA 8270 <br /> TCL Pesticides/PCBs USEPA 8080 <br /> TAL Metals/Cyanide USEPA 6010/7000 Series <br /> T'HC USEPA 418.1M <br /> H USEPA 9045 <br /> If elevated levels of total contaminants are found in the soil cuttings, they may be subjected to waste classification <br /> (toxicity characteristic leaching procedure [TCLP])analysis to determine proper disposal procedures. <br /> DECONTAMINATION PROCEDURE <br /> All equipment anticipated to contact soil or groundwater will be decontaminated prior to sampling and between <br /> each sampling event. Decontamination will consist of steam cleaning the downhole drilling equipment and the <br /> temporary PVC well materials between borehole drilling. Groundwater samples will be collected with new, <br /> dedicated, disposable bailers. <br /> INVESTIGATION-DRIVEN WASTE HANDLING <br /> Soil cuttings will be placed in roll-off bins and left on site until the laboratory analytical results are received. Any <br /> soil that demonstrates visual contamination or evidence of contamination based on standard field screening <br /> techniques will be separated from clean cuttings. Laboratory analytical results will be used to characterize the <br /> cuttings and they will be subsequently disposed of in an applicable manner. <br /> Protective clothing, if any, and latex gloves used during investigation will be placed in plastic trash bags, and <br /> disposed as common refuse. Decontamination fluids will be containerized and retained on site until laboratory <br /> anFilyueu. results of soil sampling are received. if no contamination is identified in the soil samples, the <br /> decontamination fluids will be discharged to the city of Lodi sanitary sewer system. If contamination is identified, <br /> the decontamination fluids will be characterized and disposed appropriately. <br /> BOREHOLE ABANDONMENT <br /> Boreholes will be abandoned according to procedures outlined in San Joaquin County ordinances. Bentonite or <br /> cement grout will be placed using tremie method of grouting to within six inches of the surface. Concrete cement <br /> or asphalt will be placed from a depth of six inches to the surface at each soil boring location to restore the site. <br /> September 1996 2 <br /> g:lac&c-h&c113591 corresp120173cd.doc <br />