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analyzed showed little change with all minor constituents within their natural ranges. The 2017 total <br />aluminum value was similar to historical values for the Trapper surface water with a high of 3.6 mg/1 <br />at NPDES site 020. All values addressed in this report above permitted discharge levels have been <br />addressed in the quarterly NPDES discharge reports (DMR's) and justifications for those values, i.e. <br />storm water, snow cover melt -out, etc., have been submitted to the proper regulatory authorities. <br />The iron concentrations observed in 2017 in the surface water for this readily available constituent <br />were similar to the range in values observed historically at this site. No oil and grease was observed <br />during the surface water sampling in 2017. <br />Trapper Mining Company 5-3 <br />2017 Annual Report <br />