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LK DER <br /> APPENDIX <br /> �eynreooi�a�soiwo.. <br /> APPENDIX A <br /> ' TYPICAL KLEINFELDER FIELD PROTOCOL <br /> A-1 FIELD PREPARATION <br /> ' Before performing work in the field, environmental staff review the scope of work, <br /> prepare a health and safety plan, coordinate the work to be done with their supervisor, <br /> assemble the necessary sample containers, and check, calibrate and clean equipment <br /> to be used in the field. When underground utilities may exist at a site where subsurface <br /> soil samples are being collected, USA Underground is contacted with the boring <br /> locations and the scheduled date of drilling, or a utility locating firm is employed to <br /> ' check the boring locations. <br /> A-2 SUBSURFACE SOIL SAMPLING <br /> 1 <br /> A-2.1 Drilling <br /> ' Subsurface soil samples are collected from soil borings. Soil borings are advanced <br /> using a truck-mounted drill rig, equipped with 8-inch hollow stem augers. The borings <br /> can be advanced vertically, or at an angle up to 45 degrees from vertical. During drilling, <br /> ' an experienced environmental geologist classifies the soil, logs the lithology and <br /> collects soil samples for laboratory analysis. A sample boring log form is attached at the <br /> end of this appendix. <br /> A-2.2 Decontamination of Equipment <br /> ' To reduce the potential for cross-contamination, augers and associated equipment are <br /> ' steam cleaned prior to drilling each boring. In addition, sampling equipment is cleaned <br /> with a trisodium phosphate wash and rinsed with distilled water prior to collecting each <br /> soil sample. <br /> 101486.4/ST011 R242 Page A-1 October 31, 2011 <br /> ' Copydght2011 Kleinfelder <br />