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are expected as the 1st East Submain encounters low overburden and fracture zones beneath the tro branches of Sylvester Gulch. It is not anticipated that this water will need to be pumped from the mine. Flows into the Sylvester Gulch area should remain about the same s 1986 or slightly higher or lower depending on the amounts of precipitation during the year. This water will be discharged from the main portals or Sylvester Gulch as in previous years. The 3rd South panel and the 4th South panels tD be developed in 1987 should encounter very minimal water beneath Lone Pine Gulch in the form of damp roof, isolated roof drippers, and possibly wet floor. There should be no need to pump or discharge this water and frost area will dry up a few months after initial mining. Effluent characteristics of any water discharged from the mine should meet the NPDES permit requirements and there should be no measurable impact to receiving waters. Quality should be similar to 1986 as shown in Tables 1.4-1 and 1.4-2. Water level fluctuations in the 30 monitoring wells showed no patterns or other conditions which could be attributable to mining. Well SCrl shocaed seasonal patterns similar to that observed in previous years. The water levels were nearly as high as those observed since 1982. Well GP-1 showed the same seasonal variation as SCrl and an almost identical water elevation. Well GP-2 was destroyed by construction as previously described.. Wells GP-3 through GP-5 have never had water and remained dry in 1986. Wells 22 H-1 and 22 H-2 showed seasonal fluctuations nearly identical to those since 1982. Wells 23-H-3 and 23-H-4 exhibited little if any seasonal variation, but water levels continued to increase. Well 38-H-1 continues to maintain a level similaz to previous years, as did 38-H-2. Well 38-H-3 recrord was poor for 9 of 12 months in 1986. Well SOM-2 exhibited a slight decrease in base water level toward the end of the water yeaz. Well SOM-80 continued to increase base level slightly and continued to show marked seasonal variation. All other wells exhibited the same patterns and approximate levels as in previous years. Well water level hydrographs for 1979 to 1986 are contained in Appendix C. Conclusions from the well monitoring program to date are: a.) Barren Member wells 22-H-1, 22-H-2, SO[~-80, and SOM-13 exhibit pronounced seasonal fluctuations with higher water levels in wet years indicative of surface recharge response. b.) Barren Member wells B-32, 38-II-1, SOM-1, 45-H-1, and 45-H-2 exhibit sporadic or small responses to seasonal influences which indicates a limited but apparent connection to surface recharges. c. ) Barren NIQJnber well 38-H-2 does not appear to respond to seasonal influence and apparently has little if any wnnection to surface recharge. d.) F-seam wells C-76, SCt+~2, and SOM-16 show no seasonal or annual fluctuation and have little or no surface water connection. e.) F-seam wells 23-H-3 and 23-H-4 have maintained or increased water levels since 1984, but show no seasonal fluctuations. See 1965 AHR for an explanation of increased water levels in these two wells (P-15). f.) Wells SG-1, GP-1, A-1, A-2, and A-3 are located along the margins of creeks and exhibit seasonal fluctuations with higher levels in wet years. These wells are all shallow (less than 65' deep). (12)