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HeNo 20-3941-01 1301 k" KLEINFELDER <br /> August 20, 1996 <br /> ' APPENDIX B <br /> KLEINFELDER FIELD PROTOCOL <br /> A-1.1 FIELD PREPARATION <br /> ' Before performing work in the held, environmental staff will review the scope of work, prepare <br /> a health and safety plan, coordinate the work to be done with their supervisor, assemble the <br /> necessary sample containers, and check, calibrate and clean equipment to be used in the field <br /> Underground Service Alert (USA) were informed of the boring locations and the scheduled date <br /> of drilling, or a utility-locating firm were employed to check the boring locations <br /> 1 <br /> A-2 DRILLING AND SUBSURFACE SOIL SAMPLING <br /> A-21 Drilling <br /> Soil borings are advanced using a truck-mounted drill rig equipped with hollow stem augers <br /> Subsurface soil samples are collected from the soil borings During drilling, an experienced <br /> environmental geologist or engineer classifies the soil, logs the stratigraphy of the borings, and <br /> ' collects soil samples <br /> A-2.2 Qualitative Field Screening <br /> ' An organic vapor detector, such as a Photovac TIP, using a photo-Ionization detector (PID) or a <br /> Foxboro flame-ionization detector (FID), Is used to provide a qualitative screening of each soil <br /> ' sample collected from the borings The organic vapor detector measures iomzable compounds <br /> in the air in parts per million by volume (ppmv) Field calibration is performed using a <br /> ' calibrated span gas Ambient air is used to set the Instrument to zero The soil contained in the <br /> cone of the sampler or in a brass tube is exposed and screened with the organic vapor detector <br /> The vapor reading is noted as the field screening result <br /> For the protection of the drilling crew, the organic vapor detector also is used to measure the <br /> volatile concentrations in the breathing zone prior to and during the drilling of the borings <br /> ' Total ionizable hydrocarbon readings in excess of 1 ppmv may necessitate respiratory protection <br /> j for the affected crew members This requirement is included in the complete field health and <br /> safety plan developed for the project prior to the start of field work <br /> i <br /> ' 20-3941-01 E'01 I MP960163 Page No B-1 Copyright 1996 Kleinfelder Inc <br />