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Bowie Resources, LLC <br />Bowie No. 2 Mine <br />2016 Annual Hydrology Report <br />Surface Water Monitoring Stations: SPRINGS <br />Forty-nine springs and springs with ponds were monitored during the 2016 monitoring <br />season in accordance with the Hydrologic Monitoring Plan. This plan indicates that <br />identified springs will be inspected quarterly for field parameters with full suite laboratory <br />parameters required on springs with flows greater than five (5) gallons per minute. <br />During the construction phase of the mine, four (4) springs (S-6, S-7, S-9 and S-15) <br />were eliminated by road and portal bench construction activities. The 2016 field and <br />laboratory analysis are consistent with baseline data provided in the permit application. <br />There has been a trend in many of the springs that shows the conductivity increases as <br />the flow decreases. This trend is most likely caused by the increased time the water is <br />in contact with the alluvium because of the lower flows. <br />Surface Water Monitoring Stations: STREAMS AND DITCHES <br />Twenty-three surface water monitoring stations including the North Fork of the <br />Gunnison, Terror Creek, Hubbard Creek, Freeman Gulch, the Deer Trail Ditch, <br />Stephens Draw, and the Fire Mountain Canal are monitored quarterly for field <br />parameters and semi-annually for full suite analysis. The results of the 2016 field and <br />laboratory studies are consistent with baseline information supplied in the permit <br />application. <br />The USGS, with right of way permission from the USDA -Forest Service, installed <br />continuous monitoring stations on both Hubbard and Terror Creeks. Similar stations are <br />installed near each creek's confluence with the North Fork of the Gunnison River. <br />These stations have been calibrated by the USGS's hydrology department and now <br />provide accurate readings for the Annual Hydrology Reports. The USGS did not collect <br />flow data for their station during 2016. Flow data for the creeks were determined by <br />Resource Engineering during 2016. <br />Surface Water Monitoring Stations: SMALL AREA EXEMPTIONS <br />The locations of the small area exemptions are presented on Map 20. The Applicant <br />will monitor the flow from the small area exemptions to assure compliance with <br />4.05.2(3). The Applicant will use its best efforts to obtain samples. The samples will be <br />analyzed for pH, conductivity and total settleable solids. Samples will be in compliance <br />if they contain settleable solid levels of 0.5 ml/I or less and the pH is greater than 6.5 <br />and less than 9.0. No small area exemption sampling was performed during the year. <br />Coal Member of Mesaverde <br />Eleven bedrock wells were monitored during the 2016 sampling season. These holes <br />were monitored quarterly for field parameters and semi-annually for full suite laboratory <br />analysis. Data collected and evaluated is consistent with the baseline information <br />5 <br />