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• <br />April 13, 1991 <br />Page 12 <br />DISCHARGE STATIONS <br />n <br />U <br />There are six NPDES discharge points on the property. In addition <br />there are two surface water stations located immediately upstream <br />and downstream of the Orchard Valley West Mine Portal. These two <br />stations are monitored as part of the NPDES program. Three of the <br />stations did not discharge in 1989 or 1990. During the same period <br />the other three stations had recorded discharges an aggregate of <br />eight times. The water quality data for the stations is summarized <br />on Table 104 through 108. Due to the infrequent discharges from <br />the discharge points they have little impact on surface water <br />quality. The data from the two NPDES in-stream stations do no <br />indicate any significant increase in the concentrations of <br />monitored species. <br />• <br />