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QA/QC Procedures <br /> Instrument calibration Equipment used to monitor groundwater parameters was calibrated <br /> prior to beginning purging at the site Monitoring equipmem was calibrated following the <br /> manufactures instructions using laboratory grade standards. <br /> Ew4ment Decornarrunatton. Non-disposable and non-dedicated sampling equipment was <br /> dleaned prior to use and between uses in each well Downhole equipment was cleaned by washing <br /> the equipment using a non-phosphate soap solution and rinsing the equipment twice wrth � <br /> water <br /> D=hcate One duplicate sample was collected from the srte from a randomly selected <br /> monitoring well The duplicate,sample was collected at the same time as the original sample and was <br /> treated in the same manner as the original sample The duphcate sample was submitted to the <br /> laboratory for TPHg and BTEX analysis <br /> TdR Blank A tnp blank was prepared by the analytical laboratory and accompanied the <br /> sample bottles throughout the shipping and sampling events The trip blank was submitted to the <br /> laboratory for TPHg and BTEX analysis <br /> MIM Blank One field blank was coUmted in the field by the field technician The field blank <br /> . was prepared, prior to sampling, by filling three 44-m1 VOAs with distilled water The field blank <br /> was submitted to the laboratory for TPHg and BTEX analysis <br />