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COLORADO - CDPS WET TEST REPORT FORM - CHRONIC <br />Permitee: <br />CDPS Number: <br />Outfall: <br />Type of Test: <br />Test Species: <br />Twentymile Coal Company - Site 1 SP <br />CO - 034142 <br />Site 1 SP <br />Routine - Annual <br />Ceriodephnia dubia <br />2nd Quarter 2013 <br />Lot #: 061113 -2abc <br />Test Results <br />Survival <br />Reproduction <br />Statistical Method <br />IC25 Point Estimate <br />>100% <br />36.45% <br />Linear Interpolation <br />Pass /Fail <br />PASS <br />NA <br />Concentration with Least Statistical Deference (LOEC) <br />>100% <br />50% <br />Fisher's Exact Test <br />Pass /Fail <br />PASS <br />NA <br />Concentration with Least Statistical Difference (NOEC) <br />>1 00% <br />25% <br />St t:ol's M,nry Oue k.mk Test <br />Pass /Fail <br />PASS <br />NA <br />Ceriodaphnia dub/a Daily Percent Survival ( %) <br />Receiving Water used for dilution? NO Total Residual Chlorine: ND <br />Hardness (mg /L) <br />Control <br />12.5% <br />25% <br />50% <br />75% <br />100% <br />Initial <br />100 <br />100 <br />100 <br />100 <br />100 <br />100 <br />Day <br />100 <br />100 <br />100 <br />100 <br />100 <br />100 <br />Day 2 <br />100 <br />100 <br />100 <br />100 <br />100 <br />100 <br />Day 3 <br />100 <br />100 <br />100 <br />100 <br />100 <br />100 <br />Day 4 <br />100 <br />100 <br />100 <br />1 100 <br />100 <br />100 <br />Day 5 <br />100 <br />100 <br />100 <br />1 100 <br />100 <br />100 <br />Day 6 <br />100 <br />100 <br />100 <br />100 <br />100 <br />90 <br />Day 7 <br />100 <br />100 <br />100 <br />100 <br />100 <br />90 <br />Mean 3 Brood Total <br />35.0 <br />34.0 <br />31.7 <br />19.8 <br />10.1 <br />1 13.3 <br />pH (minimum /maximum) <br />8.0/8,3 <br />7.9/8.6 <br />7.8/8.7 <br />7.7/8.8 <br />7.6/8.6 <br />7.5/8.6 <br />Receiving Water used for dilution? NO Total Residual Chlorine: ND <br />Hardness (mg /L) <br />Rec Water <br />NA <br />Effluent <br />897.80 <br />MHFSW <br />88.98 <br />Alkalinity (mg/L) <br />Rec Water <br />NA <br />Effluent <br />1 532.79 <br />MHFSW <br />52.68 <br />Ammonia (mg /L) <br />Rec Water <br />NA <br />Effluent <br />0.06 <br />MHFSW <br />ND <br />Were all test conditions in conformance with division guidelines? YES <br />If "NO ", list deviations from test specification: NA <br />Laboratory: Aqua -Tox, Inc. 7 <br />Analyst(s): <br />Jeffr y±) fEia1, Date <br />Jason Dix Date <br />