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12) Measure the static water Ievel in each well, relative to the top of the well casing, to <br /> the nearest 0 01 foot 72 hours after well development and survey the relative <br /> elevation of the top of well casings <br /> 13) Calculate the hydraulic gradient and the groundwater flow direction using the field <br /> data <br /> 14) Purge each well of standing water to stabilize pH, temperature and conductivity <br /> Collect a single water sample from all monitoring wells on-site using a disposable <br /> bailer <br /> 15) Place purge water in DOT drums and store on-site pending analytical results. <br /> 16) Transport water samples in chilled container under chain of custody to a state- <br /> certified laboratory within 24 hours <br /> 17) Analyze water samples for TPH as gasoline and BTE&X in accordance with EPA <br /> methods 8015m and 602, respectively <br /> 18) Prepare a summarizing the results of the above investigation If contamination is <br /> delineated, the report will be a Problem Assessment Report(PAR) If contamination <br /> is not delineated after this phase of investigation, the report will be a Quarterly <br />. Report The report will be signed by a California Registered Geologist <br /> The opportunity to prepare this work plan is greatly appreciated Please contact our office <br /> if you have any questions <br /> Sincerely, <br /> GEOLOGICAL AUDIT SERVICES, INC <br /> Bob Marty <br /> Project Manager <br /> Victor B Cherven, Ph D <br /> Principal Geologist <br /> Registered Geologist #3475 <br /> O.eobeAudra 1 -N. 4 <br /> teal ee.uo.WP/12 43r 60-5 <br />