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<br />i COLORADO - CDPS WET TEST REPORT FORM - CHRONIC <br />PERMIITEE NAME: New Elk Coal Comuanv CDPS NO: CO-0000906 OUTFALL: <br />TYPE TESTAOLTINE X ACCELERATED TEST SPECIES CVj aohnia dubta <br />Test Results: I Lethality Growth <br />Reproduction <br />CONC. WITH S TAT., >100% NA 100% <br />DIFFERENCE <br />PASS/FAIL PASS NA NA <br />IC25 95.8% (95% Cl unavailable) NA 39.7% (95% C.I. 22.8-59.3) <br />PASS/FAIL I ! PASS NA NA <br />STAT. METHOD OSIsD: STATISTICAL DIFF.: NOEC. L:Q IC25 ICo METHOD <br />DATE: START 3!30/1015:15 END 4/7/1014:30 <br />m r rrrnmt ioi rpm Y icn m <br /> CONTROL 12.5% 25% 57% 75% 1000/0 <br />% SURVIVAI , FOR DAY: 1 100 t00 100 100 100 100 <br /> 2 100 100 100 100 100 90 <br /> 3 100 100 100 100 100 90 <br /> 4 t00 100 100 100 100 80 <br /> 5 100 I00 t00 100 100 80 <br /> 6 100 I00 t00 100 t00 70 <br /> 7 100 100 t00 100 100 70 <br /> 8 100 100 100 100 100 70 <br />MEAN 3 BR OOD TOTAL: 3.8 5.0 6.4 2.3 0.8 0.0 <br />7 DAY MEAN D RY WEIGHT: <br />? <br />p) i <br />t NfAJC/MIN <br />8.57/8.29 <br />8.85/8.73 <br />-------------- <br />9.05/8.89 <br />9.14/9.08 <br />9.19/9.13 <br />9.21/9.15 <br />MEAN HARDNESS (mg/L) RECEIVING WATER: NA EFFLUENT: 45 RECON WATER: QQ <br />MEAN ALKALINITY (mg/L) RECEIVING WATER: NA EFFLUENT: .12_56_ RECON WATER: 66 <br />1 <br />MEAN T. AMMON as N (mVL) INITIAL EFFLUENT: 1-2 FINAL EFFLUENT. NA <br />MEAN T. RESIDUAL CHLORINE (mg/L) 1000/oi: <0 02 RECEIVING WATER USED FOR DILUTIONS? (YIN) N <br />WERE ALL TEST ONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? (Y/N) Y <br />IF NO, LIST DEVIA ONS FROM TEST SPECIFICATIONS: <br />ANALYST: Suzanne Parsee SIGNATURE: <br />LABORATORY: GEI Consultants. Inc./Ecological Division DATE: 5/13/1 O1 <br />COMMENTS: