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1 <br /> 3.4 Monitoring Well Development <br /> Following installation, each monitoring well will be developed using swab and bail and/or <br /> surgeblock techniques in accordance with RESNA's QA/QC Plan, Groundwater Development <br /> ' Protocol (Appendix I) The wells will be developed until they are relatively sediment free All <br /> water produced during well development will be contained in DOT 17H drums on-site pending <br /> ' determination of method for proper disposal <br /> ' 3.5 Well Head Survey <br /> Well head elevations and locations will be surveyed to allow lateral and vertical control for data <br /> reduction Surveying will be performed under the direction of a California Registered Engineer <br /> All survey information will be compiled into a scaled site map for data presentation <br /> 3.6 Fluid Level Measurement <br /> Fluid levels will be obtained from all monitoring wells following development, after fluid levels <br /> have been allowed to stabilize Levels will be taken using an interface probe capable of <br /> differentiating between air/productlwater with an accuracy of 1/100th of a foot Fluid levels will <br /> allow determination of the current groundwater gradient, which will be summarized in the <br /> ' problem assessment report <br /> ' 3.7 Groundwater Sampling and Analysis <br /> Immediately following well development, a groundwater sample will be retrieved from each <br /> ' well Measurements of EC, pH, and temperature will be recorded during purging and allowed <br /> to stabilize prior to sample collection to ensure samples are representative of formation water <br /> ' Water sample collection and preservation will be in accordance with RESNA's QA/QC Plan, <br /> Groundwater Sampling Protocol (Appendix I) Clean, disposable bailers with bottom emptying <br /> I <br /> ' devices will be used to reduce volatilization during sample collection Samples will be <br /> transferred to appropriate sample containers, labelled with sample identification, placed on ice, <br /> ' and shipped under chain-of-custody protocal to a State certified laboratory The water samples <br /> will be analyzed for BTEX and TPHG by EPA methods 8020 and modified 8015, respectively V <br /> WP 0393 FNL 6 <br /> 1 <br />