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• located adjacast to areas mined in 1991 and 1992 but showed no apparent impacts <br />in the field data oollecked during 1993. Aooess to well SM-1 was reestablished <br />late in 1993 arcl monitoring will continue at his site during 1994. Well 3~f-2 is <br />located outside the potential subsidence zone. Well SM-9 wastudesmined by Panel <br />C during 1993. Advance mining occurred in the vicinity of well SM-3 in 1982 and <br />1983. <br />Water quality at well SM-3 exhibited a slightly higher than normal sulfate <br />concentration. No other anomalous water quality observations were apparent <br />during 1993 at any of the other Stevens Gulch shallow groundwater monitoring <br />wells. <br />• Shallow groundwater monitoring well SM-4 (see Map No. 4-1) is located in the <br />Terror Creek drainage. 'This well was monitored briefly during 1993 for water <br />levels and field parameters. Well SM-4 is located outside the zone of any <br />potential mine impacts given mining to date. No water quality sanq~le was <br />obtained frwn well SM-4 as an extensive water quality database exists for this <br />site and no mining has occurred in the vicinity. Field data collected from well <br />3~i-4 during 1993 was insistent with data previously collected and not indicative <br />of any adverse or irregular impacts. <br />MESAVFRDE EC3Hr4~TICN - HELOW D SEAM GROiQIDf~IIs.TER MGNI'iCItII~ <br />Well DH-70 is located in the Coal Gulch (see Map No. 4-1) drainage and overlies <br />an area of the Feast mine developed in 1984. This location was measured twice for <br />water levels during 1993 and found to exhibit water levels within the normal <br />• range previously established for this site and slic~tly elevated as oac~ared to <br />1992. No water quality samples were obtainable fr®n this well. <br />8 <br />