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• Six NPDFS discharge monitoring points exist at COVCC (see Map No.'s 4-1, 8-lA, <br />arr] 8-3). All six points were monitored in accordance with permit requirements <br />during periods of discharge. 'Three of the six dicrhame poirrts experienced <br />discharge during 1993. Point 001, oansistirg of effluent from a wastewater <br />treatment facility, di_GCh~irged continuously thrax~out the year. Points 002 arcs <br />006, sediment ponds below the Fast mine facilities and at the West mine <br />restively, experienced intermittent discharges throughout the year. In the <br />data summaries following this narrative, copies of the cover letters and II7R <br />forms provided to the Colorado Departrrent of Health (CI)OH) and FYivironmental <br />Protection Agency are provided for those outfalls which discharged during the <br />year. 'The DtR2 forms summarize the discharge events. <br />• A total of eight NPDFS permit limitation exceedences were recorded and reported <br />throughout the year. Six exceedences were attributed to Point 001 and were <br />related to chlorinator malfunctions (3) and BOD m;n;imim % removal criteria (3). <br />Chlorinator repairs were affected in a timely fashion and a request to waive the <br />Bpp m;n;mm, % removal criteria was submitted to the CDOH during the first quarter <br />of 1994. BOD influent loadings at the wastewater treatment plant at ~VCC are <br />extremely low as the majority of influent consists of shower water. 4Yte 85% <br />mirtinnmi removal criteria, added as a permit requirement during the last quarter <br />of 1993, proved difficult to meet on a consistent basis. At no time during 1993 <br />was the maximum BOD effluent limitation exceeded. However, on several occasions, <br />the 85% minimum removal criteria was not met. ~VCC has not to date received a <br />response regarding the waiver request sukmitted to CDOH and will continue to <br />strive to maintain ccmg~liance with this r~~irement until notified otherwise. <br />CJ <br />?he rena;n;m two 1993 exoeedenoes are attributable to outfall 006, the West mine <br />4 <br />