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The Golden Eagle Mine Discharge (Station MDGE-1) is located in <br /> Ciruela Canyon approximately one-half mile from the Purgatoire River <br /> (Figure 1) . During the fourth quarter of 1988, Pond 005 was <br /> constructed to handle mine water discharge and provide additional <br /> settling time for suspended solids treatment. This pond became <br /> operational at the end of 1988 and discharges directly into the <br /> Purgatoire River. However, during the spring and summer of 1989, the <br /> Pond 005 embankment failed and mine water was rerouted back to Station <br /> MDGE-1 (Pond 002) . Following the second failure in the summer, the <br /> discharge was rerouted to Pond 002 and will remain going through that <br /> system until an engineering design for Pond 005 is completed. All <br /> monthly data for Stations MDGE-1 and Pond 005 collected during 1989 <br /> is presented in Tables 1-6 and 1-7 of Appendix 1 and summarized for <br /> previous year in Table 1-14 . The water is a sodium-bicarbonate type <br /> with high ionization and low concentrations of metals. As with <br /> Station MDNE-1, Stations MDGE-1 and Pond 005 were also monitored for <br /> NPDES parameters as reported in Appendix 6. All parameters with <br /> exception of pH and TSS were within limitations over the year. <br /> Ciruela Canyon has a drainage area of 1745 acres with primary <br /> land uses of grazing and wildlife habitat. Cover in the canyon is <br /> primarily woodland with a herbacous valley bottom. There are two <br /> on-stream impoundments which catch surface flow for livestock <br /> watering. Two seeps were monitored (Appendix 4) which were not major <br /> contributors to stream flow. Two surface water stations were <br /> monitored in Ciruela Canyon. CCS-1 is above the Golden Eagle Mine <br /> Discharge. Only minor seepage events of five gpm or less were <br /> observed during the six year monitoring period (Table 1-8 and 1-14 of <br /> Appendix 1) . CCS-2 is located at the confluence with the Purgatoire <br /> River. Flow at this station during the year was primarily the result <br /> of the Golden Eagle Mine Discharge. Flow and water chemistry measured <br /> at the station (Table 1-9 of Appendix 1) was similar to that of <br /> Station MDGE-1. All data is summarized in Table 1-14 of Appendix 1 <br /> -15- <br />