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COLORADO DEPARTMENT OF PUBLIC HEALTHAND ENVIRONMENT, Water Quality Control Division <br />Rationale-Page 4, Permit No. CO-00321]5 <br />Effluent Flow 4 0.086/0.0405/0.139 0.24/0.1901/0.314 NA/NA 0 <br />pH (su) 4 7.7/7.4/8.1 8.2/7.518.8 6.5/9 0 <br />Fe, Tot (ug/I) 3 1127/410/2030 ]127/410/2030 3000/6000 0 <br />TSS (mg/I) 3 76/<S/32 16/<5/32 35/70 0 <br />Oil and Grease 4 NA/NA/NA NV/)W/IW NA/10 0 <br />Settleable Solids(ml/l) 3 <0.1/<0.1/<0.2 <0.1/<0.1/<0.2 NA/0.5 0 <br />TDS (mg/1) 4 618/310/830 618/310/830 NA/NA 0 <br />WET, acute <br />Ceriodaphnia 4 NA/NAINA >100hI00h100 >100 0 <br />Fathead Minnows 4 NA/NA/NA >100h100h100 >100 0 <br />Table V-4- <br />Effluent Flow S 0.019/0.005/0.041 0.037/0.0193/0.081 NA/NA 0 <br />pH (su) S 8/7.6/8.2 8.5/8/8.9 6.5/9 0 <br />Fe, Tot (ug/1} 5 9]8/400/1880 11901400/3240 3000/6000 0 <br />TSS (mg/!) 5 16/10/24 18/10/36 35/70 0 <br />Oil and Grease 5 NA/NA/NA NV/1W/NV NA/10 0 <br />Settleable Solids (ml/!) 5 NA/NA/NA <0.1/<0.1/<0.2 NA/0.5 0 <br />TDS (mgA) 5 1146/600/1920 1146/600/1910 NA/NA 0 <br />WET, acute <br />Ceriodaphnia 4 NA/NA/NA >IOOhJ00h100 >]00 0 <br />FathendMinnows 4 NA/NA/NA >100h100h100 >]00 0 <br />-Self-monitoring Data for Outfall 021 <br />Effluent Flow 1 0.09/0.003/0.176 0.11/0.003/0.123 NA/NA 0 <br />pH(su) 1 8.1/8/8.1 8.4/8.2/8.6 6.5/9 0 <br />Fe, Tot (ug/l) 2 95/20/170 110/20/200 3000/6000 0 <br />TSS (mg/!) 1 9/8/10 9/811 D 35170 0 <br />Oil and Grease 2 NA/NA/NA NV/NV/NV NA/10 0 <br />Settleable Solids (mUl) 1 NA/NA/NA <0.1/<0.1/<0.2 NA/0.5 0 <br />TDS (mg/l) 2 1410/1030/1810 1410/1030/1810 NA/NA 0 <br />WET, acute <br />Ceriodaphnia 2 NA/NA/NA >100h100h100 >]00 0 <br />Fathead Minnows 1 NA/NA/NA >IOOh100h100 >I00 0 <br />NV means No V,sib[e Sheen <br />2. State Sampling: There are no state sampling results available for this facility. <br />B. Compliance With Terms and Conditions ojPrevious Permit <br />1. Effuent Limitations: The data shown in the preceding tables indicate compliance with effluent limitations. <br />2. Other Permit Requirements: The permittee has been in apparent compliance with aJl other terms and conditions of the <br />permit. <br />L¢re Revised: 4/29/1004 <br />