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404 WEST FREMONT STREET <br /> WKA No.1628.09 <br /> December 21, 1999 <br /> Page 2 <br /> • water samples will be obtained prior to, during and subsequent to the air sparging pilot ' <br /> test and analyzed for dissolved oxygen, TPH as gasoline, BTEX, and oxygenates <br /> _ M <br /> • during air sparging activities water levels in the saturated zone will be monitored, <br /> dissolved oxygen,pH, conductivity, and temperature in groundwater will be monitored at <br /> E <br /> the air sparging.observation wells and groundwater monitoring wells using a portable <br /> field monitoring equipment and VOC concentrations will be measured at the vapor <br /> extraction wells using a FID <br /> A schematic of the SVE and air sparging systems being used during the feasibility study is <br /> appended. We anticipate performing the feasibility study prior to January 20, 1999. <br /> Please call us if you have any questions regarding our proposed scope of work. <br /> Wallace-Kuhl &Associates, Inc. <br /> K rt Balasek <br /> enior Hydrogeologist <br /> MAT:KMB:sdm <br /> WI628VET.LT1 <br /> E <br /> f <br /> } WALLACE•KUHL <br /> R,cycLdt4per - &ASSOCIATES INC. <br />