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document which is also provided in Appendix A of this report. <br />WATER QUALITY ANALYSES AND SAMPLING FREQUENCY <br />The samples aze analyzed for the parameters listed in Table 4.6-54, Section 4.6.8.4 of <br />the permit. Sampling frequency at the vazious sites is also listed in Table 4.6-54. Parameters <br />measured in the field include: pH, temperature, and specific conductivity. All other <br />parameters measured aze analytically derived at an independent laboratory. Surface water data <br />are contained in Appendix A and ground water data are contained in Appendix B. <br />III. SURFACE WATER <br />GAUGING STATIONS <br />Figure 1 shows the continuous streamflow records for Trout Creek at TR-a and TR-b. <br />The graphs showing the results of the gauging stations along Trout Creek indicate that the <br />monitoring program is being placed on-line early enough in the year to record flow prior to the <br />peak runoff period for each year. The individual data points show the monthly average flows <br />and give some indication of the variability between mild winters (winters of less snow <br />accumulation) and harsh winters. At sampling site TR-a the battery in the continuous recorder <br />failed in August of 2006. The battery was replaced in September but the equipment <br />malfunctioned and did not record levels thereafter. Therefore, there is no flow data for site <br />TR-a in September and October of 2006. The graph showing 2004-2007 data indicates an <br />increase in total streamflow in 2006 from 2004 and 2005 levels during spring runoff. The <br />i 997-2006 graph suggests that 2006 was a mild to average winter for the past decade. <br />The flow record for 2006 shows a peak flow to have occurred in May as it did during <br />2000, 2001, 2004 and 2005. The runoff from the mine site was lower in 2006 than the <br />majority of previous years over the last decade due to less snowpack on the mine site and the <br />on-set of warmer temperatures occurring earlier in the spring. The flow data presented in <br />Figure 1 consists only of information derived from continuous flow records. Instantaneous <br />2 <br />