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Exhibit 71 Hydrologic Characterization South of the Divide Area and Monitoring Plan 27 <br />4.4.3.5 Spring G-30 <br />Spring G-30 is located in Gribble Gulch above the east end of the Jumbo Mountain mine panels (Map 1). <br />It issues from alluvium, but water has not been observed during the past four yeazs. It is recommended <br />that this monitoring station be deleted from the hydrologic monitoring plan, because mining activities <br />have moved well east of the Jumbo Mountain area and there have been no measurable mining-induced <br />impacts at this site. <br />4.4.3.6 Spring G-25 <br />Spring G-25 is located in the Gribble Gulch drainage and is north of the Jumbo Mountain mine panels <br />(Map 1). It issues from alluvium and flows into a holding pond. This spring has perennial flow which <br />diminishes in late summer. It is recommended that this monitoring station be deleted from the hydrologic <br />monitoring plan, because mining activities have moved well east of the Jumbo Mountain area and there <br />have been no measurable mining-induced impacts at this site. <br />4.4.3.7 SprinP G-35 <br />Spring G-35 is located on the north flank of Jumbo Mountain in an unnamed drainage west of Gribble <br />Gulch which is tributary to the North Fork of the Gunnison River (Map 1). This spring is on the north <br />edge of the Jumbo Mountain mine panels. The spring issues from alluvium and flows into a holding pond <br />• where water is present during wet climatological cycles. It is recommended that this monitoring station <br />be deleted from the hydrologic monitoring plan, because mining activities have moved well east of the <br />Jumbo Mountain area and there have been no measurable mining-induced impacts at this site. <br />4.4.3.8 Spring G-49a <br />Spring G-49a is located on the north flank of Jumbo Mountain, west of Gribble Gulch, in an unnamed <br />drainage tributary to the North Fork of the Gunnison River (Map 1). The spring is north of the Jumbo <br />Mountain mine panels. Flow is perennial, but diminishes in the autumn. This spring issues from <br />alluvium and hydrological monitoring measurements aze taken at the end of an outflow pipe from an <br />enclosed spring house. It is recommended [hat this monitoring station be deleted from the hydrologic <br />monitoring plan, because mining activities have moved well east of the Jumbo Mountain area and there <br />have been no measurable mining-induced impacts at this site. <br />4.4.4 Springs above the E Seam in the Minnesota Creek and Dry Fork <br />Drainage Basin <br />4.4.4.1 Spring J-4 <br />Spring J-4 is located in East Gulch East of Horse Gulch and is tributary to Dry Fork and Minnesota Creek <br />(Map 1). It is south of the SE mine panels and north of the SOD azea. This spring issues from alluvium, <br />is seasonal, and is normally dry in late summer or autumn. Monitoring at this spring began in 1981. <br />April 2006 AydroGeo, Ine. <br />