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• <br />• <br />Nybofogic Data r/ueprtadon and hnpoct Aaemnou fw the Pemit mdAdjacau Ana, <br />NPDES effluent limitations. During winter base- <br />ffow and summer conditions water quality in the <br />North Fork is better and is within NPDES effluent <br />limitations. However, this is the time o[year when <br />MCCs ponds are rarety discharged. <br />Flow volumes from MCC sediment ponds are low <br />relative to the North Fork of the Gunnison flows. <br />Even during low tlow conditions on the North <br />Fork MCC discharges represent an impercepuble <br />difference in stream quality. <br />Based on the analyses, sediment pond discharges <br />have had no adverse impact on the North Fork of <br />the Gunnison Rivet The quality of discharges <br />usually exceeds the quality of the North Fork In <br />addition, pond dischazge flows are so small that <br />incremental changes in concentrations in the Nonh <br />Fork are imperceptible. <br />Discharges of sur[ace runoffin 1992 are expected <br />to be similar to 1991. <br />• 16 <br />