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/ ~~ 97012TC and 97013TC, also required water quality sampling on asemi-annual basis. All monitoring requirements were completed at these sites during 2000. However, well FCM#2 was replaced in_the fall of 1995 by monitoring well 95M001, with semi-annual monitoring during 2000 occurring at well 95M001 in lieu of FCM o'ie #2. Tables 14 through 20 provide summaries of the 2000 Water Year data collected at each site. Table 14a provides the period of record statistical summary of collected data at well 001-83-106 with Tables 17a through 20a providing the period of record statistical summaries of collected data at wells 95M001, FBR-2-E, 97012TC and 97013TC. Figures 29 through 39 provide graphical representations of water levels and selected water quality parameters recorded at each site. The continuous pumping of well 001-83-106 (Figure 29) complicates [he po[entiometric surface in the Trout Creek Sandstone. The po[entiometric surface trends prevalent in the Twentymile Sandstone and Wadge Overburden aquifers are not evident in [he monitored Trout Creek wells. The previously monitored well 006-83- 48C routinely exhibited water levels in the 7100 ft elevation range while replacement well FCM#2 returned levels around elevation 6520 during 1995. In the fall of 1995, well 95M001 was established in part to address the apparent discrepancy in water levels between wells 006-83-48C and FCM#2. Water levels remmed from well 95M001 confirm that levels recorded from well FCM #2 were accurate (Figure 31). Inflows from the Trout Creek Sandstone into the mine workings have not been encountered to date to account for the apparent lowering of the potentiometric surface in the Trout Creek formation as indicated by the water level data previously recorded for well 006-83-48C. Some dewatering of the aquifer does occur from [he pumping of well 001-83-106 to supply [he mine with domestic water. During 2000, the southernmost Trout Creek well, 001-83-107 (Figure 30), continued to exht tte ower water levels in the 6840 fi elevation range, while the northernmost well, 008- 75-EFC (Figure 32), remained around the 6620 fi elevation level. Well FBR-2-E (Figure 34) continued to returned levels around 6670 fr elevation during 2000, which is appreciably lower than the 6720 ft level typical prior to the 1999 Water Year. Well 001-83-107 (Figure 30) continued to show lower water levels than those typical prior [0 1992. Well 001-83-106 (Figure 29) remains drawn down presumably due to consistent pumping. Well 95M00] (Figure 31) returned levels around 6460 ft elevation during 2000, which is appreciably lower than [he historical level of 6510 ft. Well 97012TC (Figure 36) continued the steady decline apparent since monitoring began in [he 1998 Water year. Well 97013TC (Figure 38) continued [o show the minor fluctuations apparent since monitoring began in the 1998 Water year. Field measurements are presented in Tables 15 and 16 for wells 001-83-107 and 00875-EFC. Field parameter measurements on these Trout Creek Sandstone welts monitored during 2000 returned values within anticipated ranges with no mine related impacts evident. Field measurements and water quality parameters for wells 001-83- 106, 95M001, FBR-2-E, 97012TC, and 97013TC are provided on Table 14, and Tables 17 through 20. At well 001-83-106 (Table 14) new maximum values were recorded far lab conductivity, sulfate, dissolved selenium, nitrite, and ortho-diss phosphate. The historically elevated pH readings for this sight seem [o have moderated slightly. At well 95M001 (Table 17) new minimum values were recorded for dissolved magnesium and dissolved iron. New maximum values were recorded for field pH, carbonate, and nitrite. The 2000 pH readings continue to be relatively high at this site. At well FBR-2-E (Table 18) new minimum values were recorded for • field pH and dissolved iron, New maximum values were recorded for dissolved selenium and nitrite. High pH readings appear typical for this well also. Well 970] 2TC (Table 19) and 97013TC (Table 20) established many new maximum and minimum values for tested parameters in 2000, due to the limited period for which values 4