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-$Flu <br /> will be decontaminated Prior to Commencing drilling at each <br /> halo. W011 construction materials will be Cleaned an <br /> necennary, Prior to installation. <br /> EqUiPmant and well material decontamination will be <br /> c=ductod on an Impermeable surface and all decontamination <br /> effluent will be contained. All surfaces of the equipment <br /> will be thoroughly decontaminated using a <br /> The 09ulpmant will steam cleaner. <br /> be Placed on a drying rack for air <br /> drying. The decontamination water will stored In containers <br /> cort1flod fo.L linzardoua materials storage and dIOPosad of in <br /> an approved manner. <br /> Sample OquIPmQnt to be used for esticides and organic <br /> analysis will be washed In a nonphospPhato detergent (Alconox <br /> or equivalent) and rinsed with tap water, followed by <br /> doionized water and finally with acetone. <br /> Is for metals analysis, If the equipment <br /> the Initial rinse will be conducted <br /> with 0.1 N nitric acid followed by top water and dolonized <br /> water. <br /> 7.0 Field Equipment Calibration and Maintenance <br /> The following mecouring equipment may be <br /> Remedial Invo uged during the <br /> a tigation. Equipment In grouped bY field <br /> activity. Calibration procedures and frequency are listed <br /> for each piece. <br /> Sall Sarin and Well <br /> -D-1-monsion,-Ste0l and <br /> tape Ca r none. coated cloth <br /> Water Level Measurements In Wells- Stool surveyors tape. <br /> Callbrat—lon.- ­m-a-n—u—?a6turoF-uU—P-P- fed temperature correction <br /> will be applied as *PPlicablo for field conditions. <br /> Electrical wall sounders. Calibration: chock against stool <br /> surveyor's tape. <br /> 104r anic <br /> Va ra PhotolonIzation detector. <br /> v <br /> Dal y is d Calibration u9j., d Isobutylene staCalibration: <br /> manufacturers inatz'uctlons. ndard an per <br /> Groundwater EH Measurement- D I <br /> standard—pH gol 91tal PH meter. Calibration: <br /> daily U tTO-n-8—0-71-4 7, and 10 will be Utilized for <br /> field calibration" according <br /> Instructions. to manufacturers <br /> Electrical Conductivi <br /> f Electrical conductivity <br /> Otorv_e. <br /> Ca rVV& actOrY-callbrated annually and periodically <br /> motor. <br /> Calibrated against laboratory prepared standard calibration <br /> solution. <br /> Vatar Temperature- Mercury or digital al tharmometers. <br /> Ca -17ratio t -Calibrated once. <br />