2012-07-02_REPORT - C1980007 (3)

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West Elk Mine 2011 Annual Hydrology Report 30 3.2.1.14 Deep Creek Trail Spring Deep Creek Trail Spring is located in upper Deep Creek which is tributary to the North Fork of the Gunnison (Map 2). This spring is located in the SOD mine plan area. The source of this spring appears to issue from alluvium. Baseline monthly monitoring of the Deep Creek Trail Spring began in the spring of 2007 and included measuring flow, collecting field water quality data, and collecting samples for laboratory water quality analyses from May through October 2007 (CDRMS, 2006). Routine monitoring (3 times per year) at this location commenced in WY 2008. 3.2.2 Springs above the B -Seam in the Box Canyon Area in the North Fork Drainage Basin 3.2.2.1 Spring 11 -2 Spring 11 -2 is located east of Box Canyon on a hillside on the south side of the North Fork of the Gunnison (Map 2). This spring is situated north of the Box Canyon B- seam panels. It issues from alluvium below a sandstone cliff, has seasonal flow, and is often dry in summer and autumn. Monitoring at this spring began in 2000. 3.2.2.2 Spring 10 -1 Spring 10 -1 is located on the east side of Lower Box Canyon (Map 2). It is situated north of the Box Canyon B -seam panels and issues from alluvium on slopes tributary to the North Fork. Flow is variable and does not follow a seasonal pattern. Monitoring at this spring began in 1999. 3.2.2.3 Spring E10 -2 Spring E l 0 -2 is located on a hillside east of an unnamed drainage tributary to the North Fork between Sylvester Gulch and Box Canyon (Map 2). This spring is situated in landslide material below a fractured sandstone cliff north of the Box Canyon B -seam panels. Low flows were observed in WY 2005 and in the spring of WY 2006, but it has been damp or dry for most of the period of record. Monitoring at this spring began in 1996. 3.2.2.4 Spring 15 -1 Spring 15 -1 is located on the west side of an unnamed drainage tributary to the North Fork of the Gunnison between Sylvester Gulch and Box Canyon (Map 2). This June 2012 HydroGeo, Inc.