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from site 109 in 2005. Limited flow (i.e. a one week period, and a two day period) was observed at 115. TCC <br />has discontinued discharging from 115, and now re-routes underground mine water at this location to other <br />portions of the mine for dust control. Monitoring requirements were fulfilled during 2005. <br />When pumping mine water from the Fish Creek Borehole (mine discharge site 115) the flow becomes a <br />contributor to sulfate levels in Fish Creek. When pumping mine water from the EMD Dewatering Well (mine <br />discharge site 109) the flow becomes a contributor [o sulfate levels in Foidel Creek. Fish Creek and Foidel <br />Creek, in tum, contribute to the sulfate levels in Trout Creek. Trout Creek currently has a secondary drinking <br />water standard limiting sulfate concentrations above 250 mg/l. In September 2005 only one sample exhibited a <br />concentration above 250 mg/1 (360 mg/I), however please note that TCC was not discharging to Fish Creek <br />during this time period. The 2005 Water Yeai data for mine water discharge site 115 is presented on Table 53. <br />Tables 53a and 53b provide historical data summaries. Figures 110 and 111 present graphical data for this site. <br />No direct discharge to Foidel Creek occurred from site 109 in 2005. <br />3.7 CDPS Discharge Sites <br />Under State of Colorado Department of Public Health and Environment (CDPHE), Colorado Discharge Permit <br />System (CDPS) permit No.'s CO-0027154, CO-0036684, and CO-0042161, eleven discharge points are <br />monitored throughout the year. Note that CDPS has been referred to as the National Pollutant Discharge <br />Elimination System (NPDES) in previous AHRs. Monitoring results are copied to DMG in accordance with <br />. CDPS requirements. Tables 54 through 60 provide 2005 and historical data summaries for those CDPS outfall <br />points, other than mine dewatering site 115, which discharged during the year. The reader is referred to the <br />CDPHE Colorado Discharge Monitoring Reports (DMRs) submitted monthly/quarterly during the year for <br />additional information regarding specific discharge occurrences. Figures 112 through 115 provide graphical <br />representations of the 2005 flow rate and field conductivity data for Pond D at the Foidel Creek Mine and for <br />Pond E at the Fish Creek Tipple. Figure 120 depicts period of record total recoverable iron data for Pond E. <br />Note that ponds A (former Outfall OOIA), and H (former Outfall 009A) were deactivated following Phase lII <br />Bond release of the Eckman Park area, and were subsequently removed from the newly amended CDPS permit <br />on January 1, 2003. <br />3.8 2005 Inflow Survey <br />The annual inflow survey was performed during early October 2005 (prior [o freezing conditions). During the <br />2005 inflow study, flow rates and field parameters were recorded for measurable inflows from [he accessible <br />areas of the underground mine. Results of the 2005 survey are presented on Figure 117, 2005 Inflow Study <br />Mined Area. Note that water elevations for the Western Mining District were monitored periodically at the Fish <br />Creek Borehole, and for the Eastern Mining District at the TORT borehole during 2005. <br />Longwell mining was completed in the EMD by early-January 2001. Production from the NMD, 12 Rt Longwell <br />Panel, was underway by late January 2001. The EMD was permanently sealed in October 2001 removing all <br />access to the 6 Rt and 7 Rt gate roads. Thus, no measurements are available in this area for 2005. Historical data <br />12 <br />