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Mr Travis Bryant Project 22605-101003 <br /> 40 July 22, 1999 <br /> Page 3 <br /> CONCLUSIONS <br /> The typical hydraulic gradient near the intersection of Charter Way and Lincoln Street has <br /> generally been toward the northeast to east Groundwater elevations Increased <br /> approximately 137 feet from the previous sampling event (November 1998) Results of <br /> this monitoring event indicate that concentrations of dissolved gasoline hydrocarbons have <br /> decreased from the concentrations detected during the previous sampling events <br /> WORK PROPOSED FOR THIRD QUARTER 1999 <br /> IT will continue to perform quarterly groundwater sampling on behalf of IBC The next <br /> sampling event is tentatively scheduled for August 1999 Groundwater samples will be <br /> collected from monitoring wells MW-1 and MW-2 and will be analyzed for TPHG, <br /> BTEX isomers, and MTBE using USEPA Modified Method DHS/LUFT and 8020, <br /> respectively, and for the oxygenates MTBE, tertiary butanol, DIPE, ETBE, and TAME, <br /> using USEPA Method 8260 <br />. Please call if you have questions regarding this report or any aspect of the project <br /> Sincerely, <br /> The IT Group <br /> "0405- <br /> Mark Capps, R G 6561 Jay R Johnson <br /> Project Geologist Senior Project Supervisor <br /> CPE UBC1QTRLY11BCQ299 DOC-"Vsg i ; <br /> The FT Group } <br /> Rev D,7/22/99 a <br />