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WHF jDjWra=wn(aj Consultants, Inc. <br /> Sampling P►ntoc01 <br /> Page: 3 <br /> -�4 <br /> compounds.The minimum detection limits used for each analyte was .{)05 <br /> mg/kg for BTX&1;,5.0 mg/kg for diesel and kerosene, and <br /> motor oil. The state certified laboratory analyzing the soil ,,mp es wa�for <br /> ` GeoAnalytieal Laboratories, Inc. <br /> Ground Water Sampling <br /> All sampling equipment including the pump, bailer, and cables, used by <br /> sampling personnel, was disassembled, and steam-cleaned prior to <br /> commencement of sampling. Ile-ionized water(also provided by the <br /> laboratory) was introduced into the bailer as a fhlal stage of cleanin <br /> g. Ths <br /> g water was then gently poured into the sample vial to be used as a bailer blank. <br /> This blank was tested due to the contaminents found in the corresponding <br /> sample. <br /> A travel blank provided by the laboratory accompanied the sample vials from <br /> the time they are picked up from the lab to the time they are delivered to the <br /> lab. This travel blank was listed on the Chain of Custody but not analyzed due <br /> to the negative results of the bailer blank. <br /> + Immediately prior to sari lin water levels and well depth measurements were <br /> taken in the well. The well was evacuated using a stainless steel bladderum <br /> which does not introduce air into the water column. The H tem P P� <br /> electrical conductivity of the water was monitored as the well was evacuated. d <br /> These parameters are noted on a field log. Instruments calibrated to known <br /> standards were used to monitor these pay-nmeters. At least 5 well volumes were <br /> evacuated from the well until tl,e above parameters were stabilized. The <br /> samples were transfered from a Teflon bailer into clean glass vial with Teflon- <br /> lined screw caps and half gallon plastic containers provided by the laboratory, <br /> space existed in the vials by inverting to <br /> Care was taken to ensure that no air <br /> check for bubbles and re-sampling if necessary. The samples were analyzed <br /> -, within 14 days according to their EPA methods. Water samples coIlected for <br /> analysis were analyzed by EPA method 602 for purgeable aro matics and EPA <br /> method 8015 modified for total petroleum hydrocarbons, as referenced in Solid <br /> 03 Waste Method SW 846. <br /> tro <br />