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COLORADO DEPARTMENT OFPUBLICHEALTHAND ENVIRONMENT, Water Quality Control Division <br />Rationale -Page 3, Permit No. CO-0032115 <br />Y. PERFORMANCE HISTORY <br />A. Monitoring Data <br />1. Discharge Monitoring Reports: Tables V-I, V-2, V-3, V-4, and V-5 summarize the effluent data for outfalls 001, 002, <br />011, 020, and 021, respectively, reported ors the quarterly Discharge Monitoring Reporu (DMRs) jog the Trapper <br />Mining, Inc. Trapper Mine facility from January 1, 200! through December 31, 1003. During this periot~ '7Vo <br />Drscharge"was reported for outfal/s 005, 008, 009, 012, 073, 014, 015, 016, 017, 018, 019, 022, 023, and 024. <br />Table V-I - <br />EJfluentFlow 4 0.56/0.008/2.04 2/0.0124/7.43 NA/NA 0 <br />pH (su) 4 7.7/7.6/7.9 8.5/8.3/8.8 6. S/9 0 <br />Fe, Tot (ug/1) 4 800/300/1250 800/300/1250 3000/6000 0 <br />TSS (mg/l) 4 9.5/0/18 9.5/<S/18 35/70 0 <br />Oil and Grease 4 NA/NA/NA NV/NV/NV NA//0 0 <br />Settleable Solids(m1A) q <O.I/<D.I/<0.2 <0.1/<0.1/<0.2 NA/0.5 0 <br />TDS (mg/1) 4 3325/2790/3720 3325/2790/3720 NA/NA 0 <br />WET, acute <br />Ceriodaphnia 4 NA/NA/NA >!00!>100h100 >I00 0 <br />Fathead Minnows 4 NA/NA/NA >100h100h100 >700 0 <br />Table V-2 -Self-monitoring Data for Outfall 002 <br />Effluent Flow 8 0.22/0.021/0.867 0.62/0.036/2.585 NA/NA 0 <br />pH(su) 8 7.9/7.6/8.1 8.4/8.1/8.7 65./9 0 <br />Fe, Tot (ug/1) 8 604/150/1560 796/170/3030 3000/6000 0 <br />TSS (mg/I) 7 13/6/30 13/6/30 35/70 0 <br />Oil and Grease 8 NA/NA/NA NV/NY/NV NA/10 0 <br />Settleable Solids (m1/!) 8 0.13/0/1 0.13/0/1 NA/0.5 0 <br />TDS (mg/1) 8 2510/750/2980 1510/750/2980 NA/NA 0 <br />WET, acute <br />Ceriodaphnia 2 NA/NA/NA >I00/>IOOh100 >I00 0 <br />Fathead Minnows 2 NA/NA/NA >700/>IOOh100 >I00 0 <br />Lnst Revised: 4/29/2004 <br />