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• periods accounting for the peak flows observed. Runoff magnitudes were in some instances derived from the extreme high end of the rating curves developed for each site. These values represent best estimates but aze unsubstantiated with measured data. At all sites, the inverse relationship between flow and field conductivity was evident. 2001 Water quality pazameters for these sites aze within previously established ranges. At site 16A (Table 44) several new maximum and minimum values were recorded (in comparison for former site 16) for tested parameters in 2001, however, none of these values fell significantly outside the typical historical range of other wells in this aquifer. At site 302 (Table 45) a new minimum value was recorded for lab pH. At site 27A (Table 47) a new maximum value was recorded for ammonia free nitrogen. Trout Creek: Three surface flow monitoring sites on Trout Creek are utilized. Site 301 is located on Trout Creek above the confluence with Middle Creek. Site 69 is located on Trou[ Creek below the confluence with Middle Creek. Site 1005 (established in 1994) is located downstream of the confluence with Fish Creek and is monitored in conjunction with alluvial well 008-AT-1. Tables 51 through 53 provide summaries of the 2001 Water Year data collected at Trout Creek surface flow sites. Tables S la and 53a provide period of record statistical summaries of wllected data at sites 301, 69, and 1005. Figures 66, and 102 through 111 provide graphical representations of water levels and selected water quality parameters recorded at each site. For the most part, typical patterns were observed. Again, peak flow estimates were derived from extrapolated flow curves in some instances. • 2001 Water quality parameters for these sites aze typically within previously established ranges with a few exceptions. At site 301 (Table 51) new maximum values were recorded for field pH. At site 69 (Table 52 new maximum values were recorded for field conductivity, total recoverable iron, and total recoverable zinc. At site 1005 (Table 53) new maximum values were recorded for field and lab pH, field wnductivity, total recoverable iron, and total dissolved sodium. Middle Creek: Two surface sites on Middle Creek are utilized for monitoring flow. Site MC-1 is located upstream of any mining activities and site 700 is located downstream of any mining activities. Flows at site 700 were monitored by the USGS (Station 09243700) in 2001. TCC will take over future monitoring of this site Water quality data is provided on Table 54 and 55 with plots of selected data presented on Figures 112 and 117. At MC-1, a new maximum value was recorded for ortho-diss phosphate, and a new minimum value for field pH. The historical summary of flow rate data for selected surface sites is presented as Table 56. This table also provides flow summary information for dischazge sites 62, 109, and 115. 3.4 Natural Sorina Monitorint=_ Two natural springs, SWl and SW2, located over previously mined areas in the Southwest Mining District required monitoring during 2001. Quarterly flow, field parameter, and water quality samples azc required £or these sites. As reported in Table 62, no flow was observed at site SWl during 2001. Thus, no flow, field • parameters, or water quality samples could be obtained for this site. Prior to mining, SWl typically flowed throughout the yeaz. SW2 exhibited flows through the spring and summer of the 2001 Water Yeaz. Thus, field measurements and water quality samples were collected during these two periods. SW2 flows were historically 11