Laserfiche WebLink
Table 59a provides a period of record statistical summary of collected data at site composite 87-1. Figure 124 <br />provides a graphical representation of period of record field conductivity for spoil spring 303-I . <br />2000 Water quality parameters for site 303-1 (Table 59) are typically within previously established ranges with a <br />few exceptions. New maximum values were recorded for lab pH, total recoverable manganese, and nitrite. <br />MINE WATER DISCHARGE SITES <br />Two mine water discharge sites associated with [he TCC operations are monitored. Site 109 requires quarterly <br />monitoring for flows, field parameters, and water quality samples, and site 115 is monitored as an NPDES <br />discharge point in accordance with the requirements set forth under NPDES Permit No. CO-0042161. <br />Monitoring requirements a[ both sites were fulfilled during 2000. <br />Table 64 provides a summary of the 2000 Water Year data collectea horn site 109. Table 64a provides a period <br />of record statistical summary of collected data at the site. Table 64b presents mine discharge volumes through <br />site 109 for the 2000 Water Year. Figure 125 provides a graphical representation of period of record field <br />conductivity for mine water discharged at site ] 09. <br />Dewa[ering of the Southwest Mining District through site 115, suspended in February 1996, was resumed in <br />• August of 1998. 2000 Water Year data for mine water discharge site 115 is presented on Table 65. Table 65a <br />provides the period of record statistical summary. Table 65c presents water pumping records at site 1 I S for the <br />2000 Water Year. <br />NPDES DISCHARGE SITES <br />Numerous additional NPDES discharge paints at TCC operations are monitored throughout [he year with <br />monitoring results submitted to the Division on a periodic basis in accordance with permit requirements. Tables <br />66 through 71 provide Water Year and period of record data summaries for those NPDES outfall points other <br />than mine dewatering site 115, which discharged during the year. The reader is referred to the Discharge <br />Monitoring Reports (DMRs) submitted during the year for additional information regarding specific discharge <br />occurrences. Applicable permits include No.'s CO-0027154, CO-0036684, and CO-0042161. Figures ]28 <br />through 131 provide graphical representations of 2000 Water Year flow rate and field conductivity data for Pond <br />D at the Foidel Creek Mine and for Pond E at [he Fish Creek Tipple. Figure 132 depicts period of record total <br />recoverable iron data for Pond E. <br />2000 INFLOW SURVEY <br />During the 2000 water year the annual inflow survey was performed during early October (prior to freezing <br />conditions), and water elevations were monitored from the Fish Creek Borehole during the period of October <br />