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1997 to the point that artesian pressures no longer occur at this site. Well 001-83-106 remains drawn down <br />presumably due to consistent pumping. Well FCM#2 well held stable during 1997. <br />No measured parameters at well 001-83-106 returned values outside of previously established ranges during <br />1997, however, pH readings have remained stable, though slightly elevated. TCC will continue to monitor this <br />occurrence. Water quality sample results obtained from well 95M001 are presented in Table 15. The 1997 pH <br />readings continue to be relatively high at this site also. Other monitored parameters appear to vary somewhat <br />from May to September but are noted to lie within the ranges established for well 001-83-106. Water quality <br />sample results obtained from well FBR-2-E are presented in Table 16. High pH readings appear typical for this <br />well also, All monitored parameters lie within previously established ranges. <br />Fish Creek Sandstone: During 1997, two Fish Creek Sandstone wells (91M001 and 91M004) requved <br />monitoring for water levels on a quarterly basis. An additional well (Ashley) required semi-annual monitoring <br />for water levels and field parameters, and annual water quality sampling. Monitoring requirements were met <br />during the 1997 Water Year at these wells. Tables 17, 18, and 19 provide summaries of the 1997 Water Year <br />data collected at each site. Many of the parameters tested at the Ashley Well were recorded as new minimums <br />or maximums, due to the limited period that data has been collected at this site. Figure 32 provides graphical <br />representation of the period of record water levels measured at sites 91M001 and 91M004. During the 1997 <br />Water Yeaz, well 91M001 showed a decline in water level between September 1995 and March 1997. An <br />• increase followed during the spring runoff period with a second decline noted between April and September <br />1997. A similar pattern was noted at well 91M004, however, the rates of change were much less pronounced. <br />Water levels at the Ashley well were noted at approximately 20' below the established datum in March 1997. <br />A statistical summary of the water quality data generated for the Ashley well during 1997 is presented as Table <br />19a. The water is a sodium bicarbonate type with a TDS concentration of 560 mg/I. <br />ALLUVIAL GROUNDWATER MONITORING <br />Alluvial deposits containing groundwater are monitored in the Foidel Creek, Fish Creek, Trout Creek and <br />Middle Creek drainages. In the Foidel Creek drainage, sites both upstream and downstream of the TCC portals <br />and support facilities are monitored. In the Fish Creek Drainage, sites upstream and downstream of the Mine 2 <br />area and the Fish Creek Borehole mine dewatering facilities are monitored. During 1994 on Trout Creek, an <br />additional monitoring site was established downstream of the confluence with Fish Creek. During the 1996 <br />calendar year, monitoring was commenced on two additional Foidel Creek alluvium wells (FO-1 and FO-4) and <br />two additional Middle Creek alluvium wells (AVM-1 and AVM-2). <br />u <br />-5- <br />