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CLEARWATER <br /> G R O U P I N C <br /> Environmental Services <br /> GROUNDWATER MONITORING RESULTS <br /> Depth to water Ranged from 50 38 to 5103 feet below top of casing <br /> Flow direction/gradient Generally southward <br /> Floating product None <br /> TPHg concentration 220 gg/L(MW-5)to 1,200 gg/L (BMW-1) <br /> Benzene concentration 2 9 gg/L,(MW-5) to 56 gg/L (BMW-1) <br /> MTBE Concentration 58 gg/L (BMW-1)to 740 gg/L(MW-5) <br /> Remarks Groundwater flow direction is to the south at a gradient of 0 004 ft/ft Sample analytical results fall <br /> within historical ranges <br /> PROJECT STATUS <br /> One more quarterly sampling event is scheduled at this time <br /> ATTACHMENTS <br /> • Groundwater Elevations and Sample Analytical Results(Table 1) <br /> • Site Location Map(Figure 1) <br /> • Site Plan (Figure 2) <br /> • Groundwater Elevation Map- 10/13/97 (Figure 3) <br /> • Hydrocarbon Distribution Map- 10/13/97(Figure 4) <br /> • Clearwater Gauge/Purge Calculations and Well Purging Data field sheets <br /> • Laboratory Report and Chain-of-Custody Form <br /> • Clearwater Groundwater Monitoring and Sampling Protocols <br /> CGI C-115 4Q97 2 January 5, 1998 <br />