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<br /> <br /> <br /> A large number of the springs dry up in late summer. This <br /> is evidence of either a small amount of recharge to the <br /> aquifer or a rather limited aquifer system. If there was <br />' a large amount of recharge and a sufficient flow through <br /> the aquifer system assuming aquifer continuity, then <br /> there should be a large number of springs along the north <br /> facing hillside flanking the Nork Fork of the Gunnison <br />' River. This is not the case. There is also no apparent <br /> concentration of springs issuing from the north facing <br />' walls of the Dry Fork of P7innesota Creek, a stream that <br /> cuts across the dip of the beds. These factors suggest <br />' local recharge and discharge. <br />There are few springs (11 in all) issuing from below the <br />' F seam. 711most all of these springs occur in either <br />Sylvester Gulch or Gribble Gulch located about a mile <br />west of the town of Somerset. W}~ether this water <br />originated further south on the block and flows through an <br />' aquifer system Ueneath the F seam, or is local recharge <br />water, is unknown. This total flow amounts to about 65 <br />1 gallons per minute in the early summer. <br />' The alluvium acts as a more important aquifer though it is <br />extremely limited. Recharge to the alluvium is via runoff <br />from the drainage basin. A study of the wells drilled in <br />' Sylvester Gulch shows that the alluvium is the primary aquifer <br />in the area, and that waters are maintained within this aquifer <br />by Lvxlerlying shale and other impermeable strata. <br />' Well designations and water levels are given in Table <br />2.04.7(1) (a) (ii)-1 tlirougl, 11. <br />46 <br />