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1 ,~'"~ <br />i ~~~ ~~ <br />~ ~~~ <br />~~~ <br />t ¢ , fa . Wa ~ yd~~ ~ .. <br />1 - p~~M 5\ <br />.a,q+ng S a ~ong <br />' Figure 1 shows the stream flow record for Trout Creek, Koll and Homestead <br />Ditch. The graph showing the results of the gauging station along Trout Creek <br />' indicates that the monitoring program is being placed on-line early enough in <br />the year to record flows prior to the peak runoff period for each year. The <br />graph shows the monthly average flows and gives some indication of the <br />differences between mild winters (winters of less snow accumulation) and harsh <br />winters. The streamflow records on Trout Creek for 1989 and 1985 were lost <br />due to a flood caused by an unusually rapid snowmelt during the spring of <br />1989. It was not until late summer of 1985 that the Trout Creek stream <br />' channel stabilized sufficiently to enable the re-installation of the gauging <br />station. Although the magnitude of the 1984 flood was not able to be recorded <br />' in terms of flow, anomalies in the water chemistry are noted and will be <br />discussed later. The flow record for 1987 shows the peak flow to have <br />' occurred in May, whereas all previous records indicate the peak flow occurring <br />in June. This difference is probably due to a milder winter than in the past <br />' and the onset of warmer temperatures occurring earlier in the spring than <br />normal. <br />1 The flow records for Koll and Homestead Ditch (Figure 1) shows irrigation <br />in the vicinity of the Edna Mine is performed during the months of May through <br />August with the heaviest irrigation occurring during June. The mild winter of <br />1986-1987 and early spring of 1987 is indicated by the amount of irrigation <br />water used during June with continued usage into July of that year. <br />' The instantaneous flow records taken along Oak Creek (OK-a) and Trout Creek <br />(TR-b) are not included in this report. This type of record gives only an ~'7, <br />, <br />' instantaneous reading of the flow behavior of a stream at a given moment in ~ k~~~~`"t~~ <br />J ~~"" n c <br />time making it questionable as a good source of data for long-term stream ~U5 .Cc~~~JN~~ <br />(~^`" n <br />behavior. The readings for TR-b may have provided some information when used ~~ _.~ <br />U ~~, 1 <br />in conjunction with the continuous zecords taken at TR-a, however due to the ~c((p~ <br />1 <br />1 <br />