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1 <br />' are expected as the 1st East Submain enwunters low overburden and fracture <br />zones beneath the two branches of Sylvester Gulch. It is not anticipated that <br />this water will need to be pumped from the mine. Flows into the Sylvester Gulch <br />' area should remain about the same s 1986 or slightly higher or lower depending <br />on the amounts of precipitation during the year. This water will be discharged <br />from the main portals or Sylvester Gulch as in previous years. The 3rd South <br />panel and the 4th South panels to be developed in 1987 should encounter very <br />minimal water beneath Lone Pine Gulch in the form of damp roof, isolated roof <br />drippers, and possibly wet floor. There should be no need to pump or discharge <br />this water and most area will dry up a few months after initial mining. <br />Effluent characteristics of any water discharged from the mine should meet the <br />NPDES permit requirements and there should be no measurable impact to receiving <br />' waters. Quality should be similaz to 1986 as shown in Tables 1.4-1 and 1.4-2. <br />Water level fluctuations in the 30 monitoring wells showed no patterns or other <br />1 conditions which could be attributable to mining. Well SG-1 showed seasonal <br />patterns similaz to that observed in previous years. The water levels were <br />neazly as high as those observed since 1982. Well GP-1 showed the same seasonal <br />variation as SG-1 and an almost identical water elevation. Well GP-2 was <br />destroyed by construction as previously described.. Wells GP-3 through GP-5 have <br />never had water and remained dry in 1986. Wells 22-H-1 and 22-H-2 showed <br />seasonal fluctuations nearly identical to those since 1982. Wells 23-H-3 and <br />23-H-4 exhibited little if any seasonal variation, but water levels continued to <br />increase. Well 38-H-1 crontinues to maintain a level similar to previous years, <br />as did 38-H-2. Well 38-H-3 record was poor for 9 of 12 months in 1986. Well <br />SUh~2 exhibited a slight decrease in base water level toward the end of the <br />water yeaz. Well SOM-80 continued to increase base level slightly and continued <br />to show marked seasonal variation. All other wells exhibited the same patterns <br />and approximate levels as in previous years. Well water level hydrographs for <br />' 1979 to 1986 are contained in Appendix C. <br />Conclusions from the well monitoring program to date are: <br />a.) Barren Member wells 22-H-1, 22-H-2, SQM-80, and SOt4-13 exhibit pronounced <br />seasonal fluctuations with higher water levels in wet years indicative of <br />' surface recharge response. <br />b.) Barren Mertiber wells B-32, 38-H-1, SQN~1, 45-H-1, and 45-H-2 exhibit <br />sporadic or small responses to seasonal influences which indicates a <br />limited but apparent connection to surface recharges. <br />c.) Barren Member well 38-H-2 does not appear to respond to seasonal influence <br />' and apparently has little if any connection to surface recharge. <br />d.) F-seam wells C-76, SOM-2, and SOM-16 shag no seasonal or annual fluctuation <br />and have little or no surface water connection. <br />e.) F-seam wells 23-H-3 and 23-H-4 have maintained or increased water levels <br />since 1984, but show no seasonal fluctuations. See 1985 AHR for an <br />explanation of increased water levels in these two wells (P-15). <br />f.) Wells SG-1, GP-1, A-1, A-2, and A-3 are located along the margins of creeks <br />and exhibit seasonal fluctuations with higher levels in wet years. These <br />wells are all shallow (less than 65' deep). <br />(12) <br />