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Water Oua Lty nalya s and Gam; 1 inq Frern+ n v The samples are analyzed for the parameters listed in the permit on page 4.6-142a. Sampling frequency at the various sites is also listed on page 4.6- 192a of the permit. Field parameters including pH, temperature, and electrical conductivity are measured using a Horiba water quality test instrument. Surface water data are contained in Appendix I and ground water data are contained in Appendix II. III. SURFACE WATER Gauging Stations Figure 1 shows the streamflow record for Trout Creek. The graph showing the results of the gauging station along Trout Creek indicates that the monitoring program is being placed on-line early enough in the year to record flows prior to the peak runoff period for each year. The graph shows the monthly average flows and gives some indication of the differences between mild winters (winters of less snow accumulation) and harsh winters. The streamflow records on Trout Creek for 1984 and 1985 were lost due to a flood caused by an unusually rapid snowmelt during the spring of 1984. It was not until late summer of 1985 that the Trout Creek stream channel stabilized sufficiently to enable the re-installation of the gauging station. Although the magnitude of the 1989 flood was not able to be recorded in terms of flow, anomalies in the water chemistry are noted and will be discussed. The flow record for 1989 shows the peak flow to have occurred in June as previous ' years, except for 1987 when the peak flow occurred in May. The early peak flow in 1987 was probably due to a milder winter with the on-set of warmer temperatures occurring earlier in the spring than normal. Flow measurements !• corresponding to sampling dates are provided at the end of the appendix. instantaneous flow records for TR-B are provided in Appendix 1. Flow records for this location began in 1989. Prior to this time, the flooding which occurred during 1984 caused continual instabilities in the stream ~, channel at this location for several subsequent years. As a result, reestablishing a monitoring station was not possible. In 1988, a new stable I reach of the stream channel was located and a monitoring station was J