2012-07-02_REPORT - C1980007 (3)

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West Elk Mine 2011 Annual Hydrology Report 31 spring is situated north of the Box Canyon B -seam panels. The spring issues from alluvium and water is present as a slow seep only during peak flow months. Monitoring at this spring began in 1996. 3.2.2.5 Spring G -la Spring G -la is located in Sylvester Gulch on the west side of the drainage, north of the Box Canyon B -seam panel area (Map 2). It issues from alluvium and is seasonal with moisture present only during periods of snow melt or peak flow. Monitoring at this spring began in 1983. 3.2.2.6 Spring G -20 Spring G -20 is located in middle Sylvester Gulch on the east side of the drainage. It is located north of the Box Canyon B -seam longwall panels and east of the mine facilities (Map 2). It issues from alluvium or landslide material and disperses water through a grassy area. Monitoring at this spring began in 1979. 3.2.3 Springs above the B -Seam in the Jumbo Mountain Area in the North Fork Drainage Basin 3.2.3.1 Spring CR -12 (Decreed Spring #12) Spring CR -12 is located in Lone Pine Gulch north of the Northwest B -seam longwall panels (Map 2). It issues from alluvium on the south side of the gulch. This is a perennial spring, but the volume of flow diminishes in summer and autumn. This spring has been monitored since 1993. 3.2.3.2 Spring G -26a Spring G -26a is located in Lone Pine Gulch north of the Northwest B -seam longwall panels (Map 2). This spring issues from alluvium and flows into a small pond. Measurable flow has not been observed at this spring since WY 2001. This spring has been monitored since 1980. 3.2.3.3 Spring G -28a Spring G -28a is located in a north tributary to Gribble Gulch (Map 2). It is situated above the westernmost panels in the Northwest B -seam longwall panels. This spring issues from alluvium and is seasonal. Flow usually occurs during the peak flow period and accumulates in a stock pond. This spring has been monitored since 1978. June 2012 HydroGeo, Inc.