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•• �.�/ kn KLEINFELDER <br /> R <br /> ATTACHMENT A <br /> TYPICAL KLEINFEI DER FIE,LD PROTOCOL <br /> A-1.1 FIELD PREPARATION <br /> :Before performing work in the field, environmental staff will review the scope of work, prepare a <br /> health and sai:ety play, 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) is informed of the boring locations and the scheduled date of <br /> drilling, or a utility-locating firm is cnlployed to check the boring locations. <br /> i9 <br /> k <br /> A-2 DRILLING AND SUBSURFACE SOIL SAMPLING <br /> A-2.1 Drillin- <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 /> cnvirormiental geologist or engineer classifies the soil, logs the stratigraphy of the borings, and <br /> collects soil samples. <br /> A-2.2 Qualitative Field Sereening <br /> An organic vapor detector, such as a Photovac TIP, using a photo-ionization detector (RID) or a <br /> Foxboro flame-lonlzatlon detector (111)), is Used to provide a qualitative screening of each soil <br /> sample collected Irom the borings. The organic vapor detector measures ionizable compounds in <br /> the air in parts per million by volume (ppmv). Field calibration is performed using a calibrated <br /> span gas. Ambient air is used to set the instrument to zero. The soil contained in the cone of the <br /> sampler or in a brass tube is exposed and screened with the organic vapor detector. The vapor <br /> 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 ill the breathing zone prior to and during the drilling of the borings. Total <br /> ionizable hydrocarbon readings In excess of I ppniv nlay necessitate respiratory protection :For the <br /> affected crew members. This requirement is included in the complete field health and safety plan <br /> developed for the project prior to the start of field work. <br /> 20-YI'8-124/20 l SP 141/201 SC270 Piigc A-I <br /> OO 1908. Kkikiluldcr, hie.. June 16, 1998 <br />