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Jun 22 01 10:35a P.9 <br />06/16/01 MON 17:36 FAX IM011 <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 while drilling the borings. Total <br />ionizable hydrocarbon readings 'n excess of I ppmv x ry to ectio 0 <br />1 ay necessitate respirato p t n f r <br />the affected crewynembers. This reqairement Is Included iji the complete field health and safety <br />Y' lan developed for the project prior to ft start of fieldwork. <br />FIBIX-Irk-M-77V TAM, t = T <br />Soil samples are collected approximately every 5 to 10 feet fair field screening and loggin& <br />depth and then driving (vertical borings) or pushing (slant borings) a 2 -inch diameter Modified <br />Calitiamia Split -Spoon Sampler, lined with three 6 -inch long brass tubes, into the undisturbed <br />soil, The sampler is then removed from the bottom oftbe boring. The ends of the bottom (third) <br />tube are covered with TeOon wW scaled with tight fitting plastic Caps <br />Each sample is individually laheled- The label includes Kleinfaldees name, job number, the date <br />and time the sample was collected, the employcc number of the individual who pwormed the <br />sampling. and a unique five -digit sample identification number. <br />B-2.5 Hydrepunch Ir Groundwater Samw"g <br />Hydropunch 11" is a method to collect representative groundwater samples from boreholes, <br />without the neW to install monitoring wells. This method is usually used as an exploration too' <br />for screening groundwater quality and reducing the nwnber of wells needed at a site. <br />using hollow stem ausers. The Hydropun& H'" System, consisting of a steel drive point attached <br />of the boring into the uppermost water bearing zone, The barrel is COMIWed to the surface using <br />clean, 2 -inch diameter hollow steel rods, The barrel is thm pulled bAck I to 2 f4mi exposing the <br />internal PVC screw to the soil. Groundwater then, enters the barrel through the screen under <br />hydroaalic pressure and is brought to the surface with a c1m, Teflon or stainless. steel bailer. <br />The samples are inmiediatcly labcic4 and placed in an icod sample container. <br />MWITIP 42U'59441*1 JlLt'j <br />F J <br />wash followed by a distilled water rinse. <br />20-YP 1.61112011 P 163 Page B-2 <br />Copyright 20U 1, Kkinfews, Int. ItMC 14. 2001 <br />