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Surface and Groundwater Monitoring <br /> The applicant conducts monitoring of surface water and groundwater in a manner approved <br /> by the Division. The monitoring plan is found in the approved PAP, Volume 1, Section <br /> 2.05.6, and Volumes 8 and 8A. Map 4-1 in Volume 4 and Map 7 in Volume 7 show the <br /> locations of monitoring sites. <br /> Transfer of Wells <br /> The transfer to the Bowie No. 2 Mine of four exploration wells and portions of their <br /> associated access roads, along with their reclamation liability, was approved in Permit <br /> Revision No. 4. The four exploration wells are BRL-1-03-01, BRL-1-08-1, BRL-1-08-04 <br /> and 2010-2. <br /> Discharge of Water into an Underground Mine <br /> Discharge of water into underground workings will not occur. <br /> Stream Buffer Zones <br /> No disturbance is anticipated within 100 feet of a stream with a biological community. <br /> Probable Hydrologic Consequences <br /> Groundwater <br /> The Bowie No. 1 Mine has the potential to affect groundwater in three ways: <br /> • Degradation of water quality <br /> • Decrease in availability of colluvial/alluvial water supplies <br /> • Dewatering of bedrock aquifers. <br /> Degradation of groundwater quality could occur in three locations. The train loadout and <br /> auxiliary coal stockpile are located on an alluvial terrace of the North Fork of the Gunnison. <br /> Runoff infiltration could result in the dissolution of salts. The operator installed and <br /> monitors three wells downgradient from these facilities (MWO1, MW02, and MW03) and <br /> has not detected any significant water quality changes. The Division has expressed concern <br /> about the narrow band of alluvium found downdip of the underground waste development <br /> stockpile. The operator has installed a well (B07, aka Node 22) and is monitoring that <br /> location for impacts. No impacts have been detected to date. Lastly, there is a slim <br /> probability that subsidence-related impacts to springs might result in the modification of <br /> the springs' water quality due to a change in routing of the water. The operator is <br /> monitoring springs in currently affected areas quarterly for major cations and anions, and <br /> no changes have been detected. <br /> 25 <br />