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The Division has a few corrunents that should be addressed by the operator; <br />1. On page 8 of the AHR, Well AVF-3 has shown an upward trend in dissolved solids <br />but states that the trend is unlikely due to mine discharge because of a dissimilar <br />chemical composition between the well water and the mine discharge water. Please <br />expand on the specific dissimilarities in the text of the AHR. <br />2. On page 9, it states that summaries of the water quality data are presented in Tables <br />27 through 30. The Division could not locate Tables 29 and ?.0 in the AHR. Please <br />submit these tables to the Division. <br />3. On page 12 of the AHR, a small increase in the dissolved solids in Williams Fork <br />Alluvium Well AVF-3 around 2000 mg/L is noted. The AH:R states that the cause <br />of the increase is unknown, however, the data indicates that 'it is not from the mine <br />discharge or from the waste water lagoon. Please expand on t:he specific reasons why <br />it is not correlated with the mine discharge or waste water fi-om the lagoons in the <br />AHR. <br />4. In the fourth quarter of 1995, there were two NPDES non corpliance discharges for <br />total suspended solids on outfall 023 for the 30 day avera@;e (85 mg/l) and daily <br />maximum (170 mg/1). The operator should note NPDES non-compliance discharges <br />in the AHR. <br />Please respond to these concerns by January 31, 1996. If you have any questions, please do <br />not hesitate to call. <br />Sincerely, <br />. - ~ ~~ <br />Erica S. Crosby <br />Environmental Protection Specialist <br />c: \wp51 \eagle \961127 <br />