Laserfiche WebLink
KLEINFELDER <br /> File No . 23-480020 .D00 <br /> August 26 , 1994 <br /> i <br /> r <br /> ATTACHMENT B <br /> KLEINFELDER FIELD PROTOCOL <br /> I B4 . 1 FIELD PREPARATION <br /> Before performing work in the field, environmental staff will 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 to be used <br /> in the field. Underground Service Alert (USA) will be informed of the boring locations and the <br /> JI scheduled date of drilling. A utility-locating firm may be employed to check the boring <br /> locations at an additional charge. <br /> B-2 DRILLING AND SUBSURFACE SOIL SAMPLING <br /> B-2. 1 Drilling <br /> Soil borings are advanced using a truck-mounted drill rig equipped with hollow stem augers. <br /> LJ Subsurface soil samples are collected from the soil borings . During drilling, an experienced <br /> u environmental engineer or geologist or engineer classifies the soil, logs the stratigraphy of the <br /> borings , and collects soil samples . <br /> l <br /> B-2.2 Qualitative Field Screening <br /> An organic vapor detector, such as a Photovac TIP, using a photo-ionization detector (PID) or <br /> a Foxboro flame-ionization detector (PID) , is used to provide a qualitative screening of each <br /> "1 soil sample collected from the borings . The organic vapor detector measures ionizable <br /> J compounds in the air in parts per million by volume (ppmv) . Field calibration is performed <br /> using a calibrated span gas . Ambient air is used to set the instrument to zero . The soil <br /> r`l contained in the cone of the sampler or in a brass tube is exposed and screened with the organic <br /> vapor detector . The vapor reading is noted as the field screening result. <br /> FPFor 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 <br /> Protection for the affected crew members . This requirement is included in the complete field <br /> plan developed for the project prior to the start of field work. <br /> health and safety p p p � <br /> I ETHmd 6EI94 <br />{ Copyright 1994, Kleinfelder, Inc. Page I of 2 <br />�I <br />