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decreasing water levels until 1985 when some rise in levels through 1986 was seen. <br />Affects of poor well completion have been responsible for these changes. Increases <br />in 1985-1986 occurred after mechanical bailing of the well for development purpose. <br />ALLUVIAL AQUIFER <br />Two alluvial wells are monitored in the operational mine area (wells GBB3 and <br />J1). Figure 4.8-27 presents water -levels monitored in well GBB3. Levels have <br />remained fairly stable through the period shown 1982-1986. Water levels in Johnson <br />Gulch alluvial well, 31, are presented in Figure 4.8-28. Except for the September <br />1986 measurement, the plot shows steady water levels for the period 1983-1986 in the <br />J-1 alluvial well. <br />01 1 <br />•BACKFILL AQUIFER <br />Well GF5 was completed in the backfill aquifer in an area where the HI seams <br />were mined. Figure 4.8-29 shows that the water level in backfill well GF5 has <br />steadily risen since its installation. <br />i <br />4-226 dd <br />REVISED EEM 13 '87 <br />