Laserfiche WebLink
C~ <br />Site 1003 - Fish Creek <br />Refer to comments for Site 1002. <br />Site 301 - Trout Creek <br />• <br />Two of the four required full suite samples were not obtained. <br />Specifically, the June and September 1987 samples are missing. <br />Site 69 - Trout Creek <br />The July and September 1987 full suite samples are missing, as are the <br />July 1987 field parameter data. Note: four full suite analyses were <br />conducted October 1986 through January 1987. <br />Discharge data is consistently missing for all or part of the data for most <br />sites. It appears that measurements were made; however, either none of the <br />data were entered, or only the elevation data are shown. The operator should <br />be converting all data from elevation to discharge prior to submitting the <br />report. Also, in some cases, measurements are omitted because a staff gauge <br />was broken or the flow exceeded the boundaries of the rating curves. In these <br />cases, the operator should be measuring flow by some alternate method. In <br />fact, page 6 of the report indicates that flumes have been used in extreme low <br />flow situations. These issues have been discussed with CYCC in the Eckman <br />Park and Mine 3 Annual Hydrology Report reviews. You have probably also noted <br />that the discharge data for site 109 (underground discharge to Pond D) is <br />missing from the report. <br />Water Quantity and Quality <br />Water quality summary sheets for each surface site are attached for your <br />review. In general, Foidel Creek exhibits electrical conductivity, dissolved <br />solids and sulphate levels above the applicable stream standards, The Fish <br />Creek water tends to be of better quality. The mercury detection limit <br />continues to be higher than the stream standard; however, this is probably <br />unavoidable due to analytical constraints. Silver levels occasionally exhibit <br />values above the stream standard; however, this may also be attributable to <br />analytical problems. <br />It appears that electrical conductivity is slowly increasing for the stations <br />along Foidel Creek. Station 800 is influenced by the spring discharges routed <br />through Pond A (Eckman Park). Station 8 reflects impacts from both the <br />surface and the underground mines. The operator suggests that increased EC is <br />caused by recent low flow. This may contribute to the possible increasing <br />trend, but low flow probably does not completely explain the trend. More <br />analysis of this issue will be helpful in determining the cause of the <br />possible trend. <br />