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Well 001-S-5 is located just downgradien[ from the mine portals and surface facilities location, and is monitored • in conjunction with surface water monitoring site 8. Water levels in 001-S-5 for 2003 (Figure 31) are consistent with observed historical seasonal fluctuations. Conductivity values at well 001-S-5 (Figure 32) had exhibited a genera] increase since 1979, but appears to have leveled out since 2000. Figure 33 is indicative of the genera] relationship between the alluvia] groundwater elevations and surface water elevations at these two sites. Wells 008-AV-1 and 008-AV-2 are monitored in conjunction with surface water site 304 a[ a point on Foide] Creek approximately 1000 feet upstream of the confluence of Foidel and Middle Creeks. Figures 34 and 35 provide POR conductivity data for these wells respectively. 2004 data was consistent with historical values. Figure 36, provides POR TDS data for 008-AV-2. 2004 TDS values remain within historical ranges. Water levels in these wells and the sveam show the typical seasonal interrelationship of relatively rapid increases and declines associated with spring mnoff (Figure 37). The longer-term vends in water levels at these sites generally parallel the fluctuations observed in annual stream flows. Field conductivity measurements in general at well 001-S-5 were noted to be higher than the upgradient site 009- S-]0. Downgradien[, field conductivities at well 008-AV-2 was on the order of 1700. Conductivity values at well 009-5-]0 fluctuated within previously established ranges during 2004. There appears to be a continual increasing field conductivity vend for well 001-5-5. Field conductivity measurements at wells 008-AV-1 and 008-AV-2 are comparable and occurred within previously established ranges for these sites. Fish Creek Alluvial Groundwater: During 2004 four Fish Creek alluvial wells (006-AY-1, 006-AZ-3, 008- AU-3 and 008-AW-3) required monitoring for water levels and field parameters on a quarterly basis, and water quality sampling on a quarterly basis. Per TR03-42, Feld monitoring requirements were reduced to a quarterly basis, and water quality sampling to semi-annual. All sampling requirements for Fish Creek Alluvial wells were met. Tables 27 through 31 provide surmaries of the 2004 Water Yeaz data collected at each site. Tables 27a through 31a provide POR statistical summaries of collected data at each site. Tables 27b through 316 provide POR statistical summaries of water level data at each site. Figures 38 through 51 provide graphical representations of water levels and selected water quality parameters recorded at each site. In addition to the five wells discussed above, three new alluvial wells, AVF-13 and AVF-14 (installed in August 2001), and AVF-15 (installed June 2002) were added per PR99-O5, 4e-7. These wells require monitoring for water levels and field parameters on a quarterly basis, and water quality sampling on asemi-annual basis. Water levels at well 006-AY-1, located on Fish Creek upstream of the Southwest Mining District and Mine 2, had exhibited a relatively steady increase in water level from approximately 1990 through 1994 (see Figure 38). From 1994 through 1997, that vend has reversed and is generally decreasing from ]994 through 2004. The maximum fluctuation in water level at this site over the period of record is 7.5' to date. POR conductivity data has been relatively consistent the last several years (Figure 39). Well 006-AZ-3 is situated downstream of 006- AY-1 and below the Fish Creek Borehole. Well 006-AZ-3 is monitored in conjunction with surface water site 307 and the water level relationship is presented as Figure 40. Again in 2004, the interrelationship between • alluvial groundwater and surface water is evident on this plot. POR conductivity data has exhibited a general increase since the late 1980's (Figure 41). 8