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Mr. Rick Mills - 7 - July 7, 1988 Well 009-79-4 - This well indicates elevated values for not only iron, but also cadmium and manganese. Sulphate measurements also indicate high values. Well 026-79-4 and 026-79-6 - Relatively high manganese levels have been recorded at both of these sites. Spoil Wells Five spoils wells are monitored; two are monitored for water level only, and three are monitored for water level and water quality. As indicated within the Annual Hydrology Report, the samples retrieved from these wells have relatively high total dissolved solids, electrical conductivity and sulphate values. Manganese values are also elevated. Relatively high iron values are also observed, and dissolved cadmium values equaled the receiving stream standard for total ca miu~ells 026-SP-1 and 026-SP-3 for the January 1987 analyses. ETe~ed nitrite was measured for well 026-SP-3, also for the January 1987 sample. Alluvial Wells Six alluvial wells are monitored; three in the Foidel Creek alluvial deposits, and three in the Fish Creek alluvial deposits: Fish Creek Wells - All of the wells indicate relatively high total dissovled solid and electrical conductivity levels. The data indicate a possible increasing trend for electrical conductivity and total dissolved solids at well 006-AW-2. As discussed in the AHR, iron and manganese levels are consistently high. Elevated cadmium levels are observed at Well 006-AW-2. It should be noted that the nitrate value for the April 1987 analysis exceeds the value for combined nitrate and nitrite, which indicates a probable analytical problem. Please review this problem and correct the analytical process as necessary. Foidel Creek Wells- All of these wells indicate elevated electrical conductivity and total dissolved solids. Electrical conductivity seems to be increasing over time. Low fl ow may or may not explain this trend. Additional analysis of this possible trend will be conducted: Sulphate is relatively high for all wells. Iron, manganese and cadmium also exhibit elevated values. Elevated selenium values were observed at all wells for the October 1984 analyses. This may indicate an analytical problem.