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F . <br /> k <br /> N <br /> APPENDIX C: PROTOCOL FOR GROUNDWATER SAMPLIKG <br /> Inspect well cap cover and casing to insure integrity of the <br /> system. if the integrity has been compromised, contact <br /> the Du Pont representative with responsibility for the <br /> site. <br /> f <br /> • Determine depth to water and record on Field Notes Sheets, <br /> Appendix G and Appendix H. <br /> Connect generator to submersible pump and pump the appropriate <br /> R number of well volumes of water. The appropriate number <br /> of well volumes will be determined for each well by pumping <br /> until pH and dissolved oxygen have <br /> stabilized. If using <br /> i <br /> nonstandard monitoring wells, clean the bailing system in <br /> es in clean water and three times in <br /> detergent, rinse six tim <br /> distilled water or rinse with a steam cleaner. Next , bail <br /> out 4 well volumes, and obtain the samples as aseptically as <br /> possible. Special in <br /> will be provided by Du Pont. <br /> Allow well to recharge, if necessary. <br /> tit <br /> Always <br /> samples for microbio <br /> iagical analyses first to <br /> sibilit of surface or other contamination. <br /> avoi o a�ly PCsy <br /> �9 nF of <br /> - -- ch-st-eri-je-Tygore--t01j-1-to-vu�-..�..- -n_- ---------- ---------s -- — - <br /> Collect 100 mL into a sterile battle and seal . <br /> Y <br />