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_ - 08/18/2003 11:10 20983251' WRIGHT EMVIRONMEN- PAGE 08 <br /> P-2, 1-inch diameter,PVC Schedule 80,0.020 slot size,scmwod—25-30 feet. <br /> P-3, 1-inch diameter,PVC Schedule 80, 0,020 sot size, screened--30-35 feet_ <br /> SVE Test Deg o <br /> The equipment arrangement is shown schematically on Figure 3--SVE Test Schematic.. <br /> We anticipate the following equipment will be utilized: A 3-horsepower or higher <br /> positive displacement blower or a regenerative blower gated for at least 50 standard cubic <br /> feet per minute(SCFNP at a vacuum of 8-inches mercury, one or two 200-pound vapor. <br /> phase carbon vessels,differential pressure gauges indicating pressurelvacuum in incim <br /> of water,differential pressure or variable area flow meter 0-50 SCFM,TedlarO bags,2:. <br /> inch Schedule 40 PVC piping or 2-inch hose with quick connect coupling and app ropri'4te <br /> wellhead fittings. <br /> It is anticipated that the test duration will be approximately four hours(2--hour/wen). <br /> Test measurements will taken,every 30 minutes or so. We will measure extraction wet <br /> air flow-rate,extractiou well vacuum, and baseline and test vacuum/pressure at probes N <br /> I through P-3. <br /> Four extracted air samples(2 per extraction well)will be analyzed for the COCl. Then:, <br /> vapor samples collected in Tedlar*bags will be analyzed by EPA Method 8260. Grab <br /> vapor samples collected from the soil probes will be analyzed for TPH and%oxygen b!y <br /> handheld instruments including a photoionization detector and a LEL meter. <br /> T st Results and rt <br /> A report of the findings of this SVE test will be prepared for submittal to PF1S <br /> EHD. The report will include the well and probe construction details, site ma06 <br /> and geologic cross sections. The report will describe and interpret test results <br /> including air flow-rates, well and probe vacuum, and soil gas analytical date. Vie <br /> MI analyze the test data and develop estimates of the SVE radius of influence, <br /> initial COC removal rates, and effectiveness of SVE in the soil strata tested. Vie <br /> will assess the feasibility of using SVE as an interim remediation measure basad <br /> on the analysis of test data and develop additional recommendations for fiill- <br /> scale implementation if appropriate. <br /> If you have any questions, please call the undersigned- <br /> Sincerely, <br /> Wright Environmental Services, Inc. <br /> John Lynch R. AMagbooi Qadir, PE <br /> President CH 4767 <br /> Attachments: Figures I through 3 <br />