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below ground surface. Experience from previous mining operations suggests that the water <br />source for the windmills will not be affected by mining in the Apache and Allen coal seams. <br />The existing workings for the New Elk Mine extend under the Purgatoire River beneath <br />Wells 8, 9, 10, 12, 13, and 14. Well owners did not report adverse effects on either water quality <br />or quantity during previous mining. <br />(2) Surface Water Information <br />Surface water quality and quantity information was developed historically through a <br />study by Water, Waste and Land, Ltd. The report of the quality and quantity of water associated <br />with the permit and areas adjacent to the New Elk Mine is found in Exhibit 8, Hydrology and <br />Geology Information. In addition, historical water quality analyses are provided in Exhibit 10, <br />Water Quality Analysis. All surface waters in the New Elk permit area and adjacent areas are <br />shown on Map 8, Regional Hydrology. Discharges of surface water at the New Elk Mine are <br />also shown on Map 8. Discharges from the mine and from the coalbed methane (CBM) gas - <br />production operations in Apache Canyon are permitted under the National Pollutant Discharge <br />Elimination System ( NPDES), which requires quarterly monitoring and reporting of the quality <br />and quantity of discharges to surface water. The results of recent NPDES monitoring at the mine <br />are presented in Table 10A. As indicated in Table 10A, no discharges have been measured in <br />Apache Canyon Creek during 2009 and the first quarter of 2010. Average flow rates for the <br />Purgatoire River at Madrid, Colorado, since 2002 are presented by month in Table l OB. <br />Table 10A. New Elk Mine NPDES Monitoring Data September 2009 <br />Jan <br />Specific Total Total Total <br />Discharge Point <br />Flow rate conductance pH Iron Manganese Sodium <br />May <br />(Mgd) (dS /m) (gg/L) (gg/L) (mg/L) <br />001 Mine Water to Purgatoire River <br />0.851 3.03 8.7 180 Not analyzed 700 <br />004 Runoff Pond 4 to Purgatoire River <br />No discharge* <br />007 Runoff Pond 7 to Purgatoire River <br />No discharge* <br />008 Refuse Area Pond to Purgatoire <br />No discharge* <br />009 Mine Water to Left Fork Apache <br />No discharge* <br />Canyon Creek <br />14.4 <br />Monitoring Well 1 <br />240 8 <br />*No discharge occurred during any monitoring period from January 2009 through March 2010 <br />Table lOB. Average Monthly Flow Rates for the Purgatoire River at Madrid, <br />Colorado (USGS Data) <br />Year <br />Jan <br />Feb <br />March <br />April <br />May <br />June <br />July <br />Aug <br />Sept <br />Oct <br />Nov <br />Dec <br />2002 <br />12.4 <br />14.2 <br />13.3 <br />11.0 <br />14.4 <br />9.51 <br />12.5 <br />8.12 <br />17.9 <br />16.4 <br />12.7 <br />10.3 <br />2003 <br />12.0 <br />11.3 <br />15.7 <br />24.1 <br />59.9 <br />119.9 <br />46.3 <br />51.0 <br />119.3 <br />35.5 <br />23.8 <br />18.4 <br />2004 <br />17.0 <br />18.6 <br />22.9 <br />172.1 <br />306.6 <br />146.6 <br />164.7 <br />263.7 <br />46.0 <br />35.7 <br />31.0 <br />28.5 <br />2005 <br />30.2 <br />35.1 <br />38.4 <br />141.1 <br />332.7 <br />326.4 <br />115.9 <br />104.1 <br />44.4 <br />39.5 <br />29.4 <br />22.6 <br />2006 <br />21.8 <br />21.7 <br />17.3 <br />20.8 <br />46.9 <br />38.8 <br />80.8 <br />136.9 <br />74.2 <br />73.1 <br />47.2 <br />37.5 <br />2007 <br />40.0 <br />51.9 <br />75.3 <br />103.2 <br />233.5 <br />236.5 <br />115.5 <br />145.5 <br />65.7 <br />44.5 <br />30.0 <br />26.4 <br />2008 <br />26.5 <br />30.0 <br />40.1 <br />72.6 <br />151.6 <br />203.0 <br />114.3 <br />148.4 <br />• 68.6 <br />44.3 <br />35.8 <br />34.0 <br />2009 <br />32.3 <br />29.1 <br />29.8 <br />50.8 <br />178.2 <br />180.5 <br />14.9 <br />35.2 <br />41.5 <br />Average <br />24.0 <br />26.5 <br />31.6 <br />74.5 <br />165.5 <br />157.7 <br />83.1 <br />111.6 <br />59.7 <br />41.3 <br />30.0 <br />25.4 <br />Maximum <br />40.0 <br />51.9 <br />75.3 <br />172.1 <br />332.7 <br />326.4 <br />164.7 <br />263.7 <br />119.3 <br />73.1 <br />47.2 <br />37.5 <br />Minimum <br />12.0 <br />11.3 <br />13.3 <br />11.0 <br />14.4 <br />9.5 <br />12.5 <br />8.1 <br />17.9 <br />16.4 <br />12.7 <br />10.3 <br />PR -02 2.04 -25 Revised 8/19/11 <br />