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as single units due to their close proximity to each other and their apparent common origin. <br />Flow estimates and field parameters for these springs and seeps are provided in Appendix C. <br />Springs SPR-1, SPR-3, SPR-5 and SPR-11 had sufficient flow, singularly or in <br />combination with other springs or seeps, to require additional laboratory water quality <br />sampling in accordance with the mine's permit. Results of these analyses are provided in <br />Appendix C. <br />VIII. MOFFAT STABILITY MONITORING WELLS <br />Six wells were installed in the Moffat area to monitor ground water levels. A <br />complete discussion of the purpose of the wells is provided in Section 4.6.9 of the permit <br />document. Elevations of the water in the Moffat wells are shown in Figure 36 with the data <br />provided in Appendix D. The 215 and 218 series wells have generally been dry since 1990 <br />while the 892 well series have been dry since their installation. The stratigraphy into which <br />these wells were completed is believed to have been intersected during the construction of the <br />Moffat sediment pond during the fall of 1989. Consequently, these formations have been able <br />to drain fairly freely. Due to the draining nature of the formations, it is not anticipated that <br />significant potentiometric surfaces will develop in the future. <br />During 1998, all of these wells marginally responded to the wet spring conditions. A <br />review of the data appears to confirm the continued integrity of the aquiclude between the <br />Wadge seam and Lower Wadge unit and the lack of pore water pressure development in the <br />lower unit. In June 1999, the casings of wells 8925 and 892E degraded sufficiently to <br />preclude measurements below 7,165 feet. The 2006 monitoring period exhibited water <br />elevations consistent with historical data at all Moffat stability monitoring wells. <br />54 <br />