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The alluvial aquifer of Stollsteimer Creek sampled at stations A-l, W-1, W-5 and W-7 indicate a direct connection with fluctuations of the creek. Water elevations were highest during the high flow period in March/April and lowest during the low flow period in late summer/early fall. Minor fluctuations occurred as 1 a result of precipitation events. Water quality sampling of the alluvial aquifer was conducted at stations A-1, W-1, W-5 and W-7. In general, chemical parameters were consistent with those sampled in Stollsteimer Creek (Table 1). The water is considered a mixed ion calcium/magnesium-sulfate/bicarbonate type with a more stable ionic condition than the surface waters of the creek. Wells W-1 and W-7 are above mining operations and are analyzed as control I stations while wells A-1 and W-5 are located in Matrinez Meadow in and below the anticipated area of mining influence. Major parameters of these four wells are comparable (Table 1) except 1 conductivity and TDS at A-1 are somewhat elevated. The metal concentrations of aluminum, iron and manganese wgre significantly higher at wells A-1 and W-5 than sampled at W-1 and W-7. Stream concentrations of those metals at stations S-2 and S-3 have not indicated these significant levels. These concentrations may be linked to natural concentrations of the meadow soils or contaminates in sediments of the bottom of the wells. Since the I Summer of 1987, the W-7 well has been utilized as a full-time domestic water supply. This usage appears to have little effect on water level in the well, however, the usage has decreased concentrations of the metal and other parameters being sampled. Deep wells completed in the Fruitland Formation were sampled at stations W-6, W-9, W-10, W-17, W-18 and W-19. Wells W-19 and W-18 were eliminated from sampling under the current program. The general water level fluctuation cycle of these wells was an increase in level from January through June, a decrease from July ' through October and a slight increase in November and December (Appendix 2). Station W-6 exhibited the greatest fluctuations ranging nearly 20 feet (Table 1). Water quality of the deep wells was similar to that of the surface and alluvial waters. The ' waters are a mixed ion calcium-sulfate/bicarbonate type. Chemical parameters were relatively stable over the year with greater ionization as water levels were lower. I Some of the parameters such as iron and ammonia exhibited high concentrations during certain sampling events. Reasons for these spikes are not known, however, they may be linked to well I completion and the steel casing. Station W-16 is located in the reclaimed area. Water levels I remained relatively stable over the 1987 monitoring period ranging from 90.60 in April to 93.29 in December. Water levels increased during the three year monitoring period, which indicates the