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' ARS H & IL <br /> AD S GERAG TY MILLER <br /> 4.4 QUALITY ASSURANCE/QUALITY CONTROL <br />' A method blank <br /> was analyzed for the water samples taken with the Sunulprobe and <br /> analyzed in the mobile laboratory Duplicate groundwater samples were taken for samples NP- <br /> 1-32 and NP-1-110 from depths of 32 and 110 ft bgs, respectively Also, three equipment <br />' blank water samples, identified as EBI-NP-1-40, EBI-NP-1-90, and EBI-NP-1-110, from <br /> depths o£40, 90, and 110 ft bgs, respectively,were collected from the NP-1 boring <br /> 1 <br /> A duplicate sample was taken at the 118 foot depth from boring NP-2 Two <br /> equipment blanks, identified as EB1-50 and EB2-118, were also collected from depths of 50 <br /> and 118 ft bgs, respectively, from boring NP-2 A trip blank was also collected to accompany <br />' the quality assurance/quality control(QA/QC) samples from NP-2 <br /> QA/QC duplicate samples consisted of sample splits of depth-specific Simulprobe <br /> water samples that were submitted to a fixed-site laboratory for analysis as a check on the <br /> validity of the analytic results derived from the mobile laboratory Equipment blanks were <br /> collected by pouring distilled water into the Snnulprobdm Water Canister following <br /> decontamination, prior to collecting a sample at the depth indicated, and then pouring the water <br />' into clean, glass Jars provided by the on site mobile laboratory A tnp blank consisted of bottle <br /> of clean water that accompanied samples to the laboratory as a check for sample contamination <br />' that could occur during sample transport to the laboratory <br />' 4.5 WELL DEVELOPMENT <br />' Groundwater morntonng wells NP-1 and NP-2 were developer) in phases Specific <br /> parameters (pK conductivity, temperature and turbidity) were monitored during well <br />' development The first phase, completed on November 24, 1998 (NP-1) and January 13, 1999 <br /> (NP-2), consisted of bailing with a 5/8-inch diameter by 3-foot long disposable polyethylene <br /> bailer(NP-1)and a stainless steel bailer(NP-2)until an obvious reduction in the turbidity of the <br /> 19 <br />