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2.0 Field and Laboratory Procedures <br /> This section provides a summary of the field and laboratory procedures used during the <br />' March 1999 quarterly monitoring event <br /> 2.1 Sampling Methods And Procedures <br /> Groundwater samples were collected by Dames & Moore on March 18, 1999 Field <br /> records of sampling are attached in Appendix A Prior to sampling, the static water level <br /> was measured at monitoring wells DMW 1 through DMW-7 using an electric water level <br /> indicator Only monitoring wells DMW-6 and DMW-7 were sampled, in accordance with <br /> the Work Plan dated September 14, 1998 The sampled monitoring wells were purged <br /> using a submersible pump, which was steam cleaned prior to use The wells were purged <br /> until a minimum of three casing volumes were removed from each well, and until the <br /> field-measured temperature, pH, and specific conductivity stabilized Purged groundwater <br /> was stored in polyethylene tank The wastewater was disposed into the American <br /> Moulding and Mill sanitary sewer system, in accordance with the Special Permit issues by <br /> the City of Stockton on March 10, 1999 (Appendix C) <br /> Soil generated during the monitoring well installation in December 1998 was removed <br /> from the site by the firm Ecom Logix on March 18, 1999 The soil disposal documentation <br /> is included in Appendix D <br /> Water samples were collected from monitoring wells using disposable polyethylene bailers <br /> A new bailer was used at each well One duplicate groundwater sample (MW-Q) was <br /> collected at DMW-6 The duplicate sample was collected in the same manner as the <br />' primary sample, following collection of the primary sample <br /> 1 "Certified clean" one liter glass sample containers, supplied by the laboratory, were used <br /> during the collection of groundwater samples The samples were placed on ice <br /> immediately following collection, and kept in coolers until delivery to laboratory <br /> 2.2 Laboratory Procedures <br />' Groundwater samples were analyzed by Quanterra, inc , located in West Sacramento, <br /> California The samples were analyzed for TPH-D using EPA Method 8015M Copies of <br /> the laboratory reports are attached in Appendix D <br /> DAMES&MOORE 2 G%WORDPROC\saclafp19904_01 DOC <br />