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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 /> • 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 /> 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 /> Kurt Balasek <br /> Senior Hydrogeologist <br /> MAT:KMB :sdm <br /> M\1628VET.LT1 <br /> WALLACE • KUHL <br /> Er ASSOCIATES INC. <br /> Rrcy,i.J I,.il'er '. <br />