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Trout Creek Alluvial Groundwater: There are two Trout Creek alluvial monitoring wells, 008 -AT -1, and a <br />privately owned well (Jones well). Note that 008 -AT -1 was destroyed sometime in 2013. TC's consultant <br />neglected to bring this to our attention. The well was replaced in 2014. Figures 48 through 51 provide graphical <br />representations of water level and field conductivity information to date. Note that water levels are about 3 feet <br />higher than historical, which may relate to the new well location and proximity to Trout Creek.. Tables 27 and 28 <br />provide data for these wells. <br />Well 008 -AT -1 is monitored in conjunction with surface water site 1005. Figure 48 depicts several water years <br />for 008 -AT -1 for comparison. Monitoring was initiated on Trout Creek Alluvial wells back in 1994. Figure 49 <br />shows TDS values for 008 -AT -1. Concentrations have been rising slowly since 2006. <br />Note that the Jones well has historically been monitored to access potential mine impacts to the Jone's potable <br />water well. In the fall of 2008, TC provided the Jones family with underground water storage tanks, a new <br />plumbing system, and imported water, so that they could discontinue use of the well. At that time, the old <br />plumbing system to the Jones well was decommissioned eliminating alluvial water sampling access. It is TC's <br />intend to submit a Technical Revision in 2015, to remove the Jones well from the permit. <br />Middle Creek Alluvial Groundwater: TC has no active Middle creek alluvial wells. Two Middle Creek <br />alluvial wells (AVM -1 and AVM -2) were incorporated into the monitoring network during 1996, however, per <br />TR03-42, these wells were abandoned in the Fall of 2003. Refer to previous AHRs for earlier data. <br />3.21 Points of Compliance <br />Rule 4.05.13(1)(b) requires formal establishment of ground water points of compliance for coal operation which <br />has the potential for negatively impacting the quality of ground water for which quality standards have been <br />established by the Colorado Water Quality Control Commission. The Commission's Rule 41 sets forth Basic <br />Standards for ground Water. These Standards are applicable to ground water at the Foidel Creek Mine. In the <br />judgment of DRMS, these Standards are applicable to ground water at the Foidel Creek Mine, however it is also <br />the judgment of DRMS, the Foidel Creek Mine does not have the potential to negatively impact bedrock aquifers <br />due to the nature of the geology (i.e. synclinal basin) found at the mine's location. <br />Wells 008 -AV -2 (Foidel Creek alluvium), 008 -AU -3 (Fish Creek alluvium), and well 008 -AT -1 (Trout Creek <br />alluvium) will satisfy the requirements for alluvial ground water points of compliance. <br />3.3 Surface Water Monitoring <br />Monitoring/Samoling Requirements: Table 32 presents a summary of surface water monitoring frequencies, <br />which was last updated for Permit Revision 6 (PR 03-06 Exhibits 14-7 through 14-10) in March of 2004. Site <br />locations are shown on Figure 2, Hydrologic Monitoring Plan of TR03-42 (as well as in Figure 2 of this AHR). <br />Table A of Exhibit 14 specifies three seasonal monitoring episodes (i.e. October to February, March to May, and <br />10 <br />