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I <br />r <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Twentymile Coal Cornpany CDPS NO.: CO-0042161 OUTFACE: 115-FCBH <br />TYPE TEST: ROUTINE: _ ACCELERATED: XX SPECIES: D. Magna <br />TEST RESULTS: LCD: >100% STATISTICAL METHOD: Probil <br />TEST TIME & DATE: BEGIN: 1245 PM 07102/04 END: 1240 PM 07/04104 <br /> <br /> DILUTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 12.5% 25°k 50% 75°/a 100% <br /># START OF TEST: 20 20 20 20 20 20 <br /># ALIVE AFTER 24 HRS: 20 20 20 20 20 20 <br /># ALIVE AFTER 48 HRS: 20 20 19 18 19 18 <br /># ALIVE AFTER 72 HRS: <br /># ALIVE AFTER 96 HRS: <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESIDUAL CI' (mgA): =0.1 <br />HARDNESS (mg/l): RECEIVING WATER: EFFLUENT: 595 RECON WATER: 240 <br />ALKALINITY (mgll): RECEIVING WATER: EFFLUENT: 415 RECON WATER: 160 <br />pH; INITIAL: CONTROL 7.7 100% EFFLUENT 8.1 <br />FINAL: CONTROL 8.0 100% EFFLUENT 7.9 <br />TOTAL AMMONIA AS N (mgfl): INITIAL 100°k: =3.0 FINAL 100%: =r3.0 <br />I' <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: SGS MINERALS SERVICES DI\ <br />COMMENTS: Accelerated test #2. LCx = >100%. <br />ANALYST: ~ <br />~/"~ <br />7~ ~ <br />04!08/03 <br /> <br />