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4 �U <br /> r <br /> Sn th Technology Corporation <br /> Quality Assurance/Quality Control Plan <br /> Revised February 1995 <br /> Equipment and well material decontamination will be conducted on an impermeable surface and all <br /> decontamination eluent will be contained All surfaces of the equipment will be thoroughly <br /> decontaminated using a steam cleaner The equipment will be placed on a drying rack for air drying <br /> The decontamination water will be stored in containers certified for hazardous materials storage and <br /> disposed of in an approved manner <br /> Sample equipment to be used for pesticides and organic analysis will be washed in a nonphosphate <br /> detergent (Alconox or equivalent) and rinsed with tap water, followed by deiontzed water If the <br /> equipment is for metals analysis, the initial rinse will be conducted with 0 1 N nitric acid followed by <br /> tap water and deionized water <br /> 7.0 FIELD EQUIPMENT CALIBRATION AND MAINTENANCE <br /> The following measuring equipment may be used during the Remedial Investigation Equipment is <br /> grouped by field activity Calibration procedures and frequency are listed by piece <br /> Soil Borin s and Well Dimensions <br /> Steel and coated cloth tape Calibration none <br /> Water Level Measurements in Wells <br /> Steel surveyors tape Calibration manufacturer supplied temperature correction will be applied <br /> as applicable for field conditions Electrical well sounders Calibration check against steel <br /> surveyor's tape <br /> W 1Admin\She11s1QAQC-97 DOC <br />