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I~ <br /> Water Quality <br /> <br /> Summaries of the water quality data for the eight Mine 1 ponds are presented <br />' on Tables 53 through 68 and on Figures 43 and 48 through 51. The field <br /> conductivity solids data shows some typical seasonal variation: the water <br /> quality improves during spring runoff. Ponds A, 8 (Station 63), D, F, and'H <br />' (Station 57) appear to be impacted by spoil spring inflows. The discharge <br /> rates from Ponds B and H are not significant during irrigation season and <br />' therefore these ponds do not cause any significant impacts. The mean <br /> irrigation season field conductivity for the ponds A, D and F are <br /> <br /> approximately 2800, 4000 and 35 0, espectively. These values are reflected <br /> in the dissolved solids concentr ion of Foidel Creek at station 8 which has <br /> <br />' / <br />a mean irrigation season dissolved solids level equal to Pond A. However <br />th <br />di <br />d <br />lid <br />f T <br />t C <br />l <br />l <br />l <br />k d <br />t <br />b <br />ff <br />d <br /> e <br />sso <br />ve <br />eve <br />oes not appear <br />so <br />s <br />o <br />rou <br />ree <br />o <br />e e <br />ecte <br />y. <br /> these Foidel Creek levels due to the much higher flow of Trout Creek. For <br />~ ' most of the ponds, no increased levels in any parameters were observed. For <br /> the ponds effected by spoil springs increased sulphates as well as dissolved <br />' solids were observed. Also slightly increased sodium and SAR were <br /> observed. For Pond F the dissolved manganese sometimes exceeded the NPDES <br /> standard. <br />' No discharges were recorded from the Mine 2 Ponds in 1987. Therefore no <br /> impacts to Fish Creek were observed. <br />Also of note, the water quality and flow rate of Station 87 and Spoil Spring <br />114 are almost equal. It appears that the high monitoring frequency of <br />' Station 114 is redundant. <br /> <br />1 <br /> <br />1 <br /> <br />- 11 - <br />