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a_ e= <br /> - <br /> MOMR-0 M, <br /> KLEINFELDER <br /> visually inspect for a product layer or sheen. No product layer, zheen, <br /> (` 1 or hydrocarbon odor were observed on the water samples bailed from the <br /> monitoring wells. <br /> The wells were developed with a surge, block-airlift, development tool. <br /> Surging with the tool along the screened interval was performed to draw <br /> the sediment into the well and set the sand pack. The sediment laden <br /> I- water was airlifted from the well at a rate of .50 gallons per minute. <br /> Development continued until the discharge water was relatively free of <br /> �. fines. Each well had an approximate volume of 3.2 gallons. Approximately <br /> 17 wellvolumes or 55 gallons were removed from each well during the <br /> development. <br /> Ips <br /> i <br /> On April 1 and . 4, 1988, the three wells were pugged and sampled. Water <br /> level measurements were collected from all three wells each morning prior <br /> t <br /> to purging and sampling. No product layer, sheen, or hydrocarbon odor <br /> �L <br /> I r°4 were observed-on a bailed sample from each well. <br /> } <br /> Each well was purged with a submersible bladder pump or a Teflon bailer. <br /> '< While . purging MW-1,. field <br /> parameters (pH, conductivity, and temperature) � <br /> � I were monitored. Field parameters were not monitored:during the purging of <br /> MW=2 and MW-3- After approximately five well volumes were Pp. Y: purged from.the <br /> well, . a,representative ground water sample was collected in a liter bottle ' <br /> and two 40 :milliliter VOAs. The sample bottles:were.immediately sealed, <br /> labeled, and placed in an iced .cooler for temporary storage. Sample 31474 <br /> wasticollected .from'. MW-1, Sample 28866 from MW-2, and Sample 28868 from <br /> MW-3 <br /> , F All development and sampling equipment was steam cleaned and/or washed in <br /> ' FIS a . trisodxum phosphate. solution and distilled water rinse priorto usP in <br /> each - well." Water Sample 28868 is an equipment blank collected from the <br /> decontaminated. equipment. A'. well development. data sheet and purge <br /> characterization sheets for the wells are included in Appendix C. All <br /> F, water generated during the well development and sampling was <br /> containerized, 'labeled, .and stored onsite. i <br /> - <br /> 97-88-502 <br /> {x 6 <br /> AI, <br /> r, <br /> ti <br /> ' � c <br />