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3.1 Surface Water <br /> Purgatoire River flow (Stations PRS-I, PRS-2 and PRS-3) ranged from 7.2 to 120 <br /> cfs. pH ranged from 6.3 to 8.0, conductivity ranged from 143 to 346 and temperature <br /> ranged from 3.5 to 11.1oC. All data is consistent with previously reported data. <br /> Mine discharge from the New Elk averaged 126,889 gpd (Table 3). The mine has not <br /> operated during 1986. The New Elk Mine discharge remains good quality water. The <br /> Golden Eagle Mine has been active since May. Average discharge from the Golden Eagle <br /> has been 97,312 gpd. pH increases with mining activity. This is partially a result of rock <br /> dust and partially inherent in roof and floor material. WFC has treated sediment ponds <br /> 002A and 002E with dilute hydrochloric acid on occasion to buffer pH. <br /> Upstream Ciruela Canyon (CCS-1) did not discharge the first quarter 1986. Seepage <br /> was occurring during the second quarter. There was no flow above the seep in the canyon. <br /> Downstream Ciruela Canyon (CCS-2), as discussed in previous reports flowed in response <br /> to Golden Eagle Mine discharge. Quarterly data is consistent with historical data. <br /> 3.2 Ground Water <br /> Ground water data is reported in Appendix 2, Tables 2-1 through 2-8. No <br /> parameters during this reporting period was significantly different from historical data, <br /> except for elevated iron levels in PAW-6. The elevated iron levels are probably a result <br /> of swell casing deterioration and insufficient casing volumes removed prior to sampling. <br /> -13- <br />