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West Elk Mine 2014 Annual Hydrology Report 18 <br />program. Baseline monitoring is scheduled to resume in about 2017, or at least one year <br />prior to when mining begins in the area, in order to monitor potential mining -induced <br />impacts. <br />3.1.4 Temperature Monitoring Sites <br />The surface lands of the West Elk Mine are drained to the north by the North Fork. <br />Water from the mine water pumping facility (MWPF) discharge point enters the North <br />Fork via Sylvester Gulch. In September 2007 eight temperature data loggers were <br />installed and deployed in Sylvester Gulch and in the North Fork, in order to monitor the <br />effects of discharge from Sylvester Gulch on the water temperature of the North Fork. <br />Five temperature loggers (ONSET Corp. HOBO Water Temp Pro v2) were deployed <br />within Sylvester Gulch, and three within the North Fork (Table 4). The temperature <br />loggers are weighted with an anchor and attached to secure points on the shore or in the <br />streambed using aircraft grade galvanized steel cable. Data from the temperature loggers <br />are downloaded on-site monthly by HydroGeo (whenever ice or dangerously high water <br />levels does not prevent access to the loggers). <br />The locations of the temperature monitoring sites are shown on Figure 9. Water <br />temperature data and graphs for WY 2014 are presented in Appendices I and J, <br />respectively. <br />Table 4. Summary of the Temperature Monitoring Site Details <br />Site <br />Location <br />Coordinates <br />Data <br />Collection <br />Period of <br />Name <br />(NAD 83, Degrees, Minutes) <br />Interval' <br />Record <br />NFG-1 <br />North Fork of the <br />N 38° 55.556' <br />Hourly <br />Fall 2007 to <br />Gunnison River <br />W1070 26.019' <br />present <br />NFG-2 <br />North Fork of the <br />N 380 55.730' <br />Hourly <br />Fall 2007 to <br />Gunnison River <br />W1070 27.259' <br />present <br />NFG-3 <br />North Fork of the <br />N 380 55.732' <br />Hourly <br />Fall 2007 to <br />Gunnison River <br />W1070 26.257' <br />present <br />MCSG-1 <br />Unnamed tributary to <br />N 380 54.630' <br />Hourly <br />Fall 2007 to <br />Sylvester Gulch <br />W1070 26.730' <br />present <br />MCSG-2 <br />Unnamed tributary to <br />N 380 54.692' <br />HourlyFall <br />2007 to <br />Sylvester Gulch <br />W1070 26.570' <br />present <br />MCSG-3 <br />Sylvester Gulch <br />N 380 54.687' <br />Hourly <br />Fall 2007 to <br />W1070 26.567' <br />present <br />MCSG-4 <br />Sylvester Gulch <br />N 380 54.706' <br />Hourly <br />Fall 2007 to <br />W1070 26.549' <br />present <br />MCSG-5 <br />Sylvester Gulch <br />N 380 55.592' <br />Hourly <br />Fall 2007 to <br />W1070 26.266' <br />present <br />1 Data were initially collected at 15 minute intervals, then at hourly intervals beginning in WY 2009. <br />June 2015 HydroGeo, Inc. <br />