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West Elk Mine 2006 Annual Hydrology Report 22 <br />3.2.3.8 grin G-49a <br />- Spring G-49a is located on the north flank of Jumbo Mountain, west of Gribble Gulch, in an <br />unnamed drainage tributary to the North Fork (Map 2). The spring is situated 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 are taken at the end of an outflow pipe from <br />an enclosed spring house. It is recommended that this monitoring station be deleted from the <br />hydrologic monitoring plan, because mining activities have moved well east of the Jumbo <br />Mountain area and there have been no measurable mining-induced impacts at this site. <br />3.2.4 Springs above the E Seam in the Minnesota Creek and Dry Fork <br />Drainage Basin <br />3.2.4.1 Spring J-4 <br />Spring J-4 is located in East Gulch East of Horse Gulch and is tributary to Dry Fork and Minnesota <br />Creek (Map 2). It is situated south of the SE mine panels and north of the SOD area. This spring <br />issues from alluvium, is seasonal, and is normally dry in late summer or autumn. Monitoring at <br />this spring began in 1981. <br />3.2.5 New Spring Monitoring Sites Added in WY 2006 <br />3.2.5.1 Springy 35-3 <br />Spring 35-3 is located in upper Deep Creek which is tributary to the North Fork (Map 2). This <br />spring is located in the SOD area that is scheduled for development between years 2009 and 2013. <br />The source of this spring appears to issue from alluvium. Baseline monitoring of Spring 35-3 <br />began in the spring of 2006 and included measuring flow, collecting field water quality data, and <br />collecting samples for laboratory water quality analyses from May through October 2006 (CDMG, <br />2006). Routine monitoring at this location will commence in WY 2007. <br />3.2.5.2 Deer Creek Spring <br />Deer Creek Spring is a decreed domestic spring located in Deer Creek which is tributary to Dry <br />Fork. It is located west of the SOD area. The source of this spring is not known. Baseline <br />monitoring of Deer Creek Spring began in the spring of 2006. Baseline monitoring of this station <br />included measuring flow, collecting field water quality data, and collecting samples for laboratory <br />water quality analyses from May through October 2006 (CDMG, 2006). Routine monitoring will <br />commence in WY 2007. <br />December 2007 HydroGeo, Inc. <br />