Laserfiche WebLink
<br />1• <br />2.04.5(1)(b) <br />There is an even distribution of a number of springs through <br />' the 400' interval above the F seam with a significant increase <br />in the number of springs occurring between 450' - 500' and <br />' 500' - 600' above the F seam. This latter distribution suggests <br />a significant shale or aquiclud.e layer at these two points. One <br />' of the above groups of springs occurs within Poison Gulch, a <br />tributary of the Dry Fork of the Minnesota Creek. The valley <br />' bottom parallels the d.ip, thus giving rise to this stratig:raphic <br />zonation of springs. In addition, the spring waters are <br />dominantly low solids (500 ppm, TDS) sodium bicarL'onate waters. <br />There is no marked change in water quality with distance above <br />the F seam. <br />' A large number of the springs dry up in late summer. This is <br />evidence of either a small amount of recharge to the aquifer or <br />a rather limited aquifer system. If there was a large amount <br />' of recharge and a sufficient flow through the aquifer system, <br />assuming aquifer continuity, then there should be a large <br />number of springs along the north facing hillside flanking the <br />North Fork of the Gunnison River. This is not the case. 'Chere <br />.is also no apparent concentration of springs issuing from the <br />' north facing walls of the Dry Fork of Minnesota Creek, a stream <br />that cuts across the dip of the beds. These factors sugge:at <br />local recharge and discharge. <br />' There are few springs (10 in all) issuing from below the F seam. <br />Almost all of these springs occur in either Sylvester Gulch or <br />Gribble Gulch located about a mile west of the town of Somerset. <br />Whether this water originated further south of the b1ocY, atld <br />flows through an aquifer system beneath the F seam, or is local <br />' recharge water, is unknown. <br />' REVISED ME~f 15, 1981 <br />32 <br />