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<br />LTA COMMERCIAL TESTING & ENOINEERINGCO. <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Mountain Coal Company CDPS NO.: CO-0038776 OUTFACE: 017 <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: P~romelas <br />TEST RESULTS: LC;°: >100% STATISTICAL METHOD: Binomial <br />TEST TIME & DATE: BEGIN l 145 AM 07!17/02 <br />DILUTIONS (% EFFLUENT) <br />END 1200 PM 07/21/02 <br />MEASUREMENTS 0% 1.9% 25% 50% 75% 100% <br /># c START OF TEST: 40 40 40 40 40 40 <br /># ALIVE AFTER 24 HRS: 40 40 40 39 40 40 <br /># ALIVE AFTER 48 HRS: 40 40 40 39 40 40 <br /># ALIVE AFTER 72 HRS: 40 40 40 39 40 40 <br /># ALIVE AFTER 96 HRS: 40 40 40 39 40 40 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RES1D. Cl - (mg/1): <0.1 <br />HARDNESS (mg/1): RECEIVING WATER: EFFLUENT: 90 RECON WATER: 120 <br />ALKALII~TITX (mg/l):RECEIVING WATER EFFLUENT: 1685 RECON W ATER: 95 <br />pH: INITIAL: CONTROL 8.4 100% EFFLUENT 8.4 <br />FINAL: CONTROL 8.2 100% EFFLUENT 9.0 <br />TOTAL AMMONIA AS N (mg/1): INITIAL 100%: Q.0 FINAL 100%: <L0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: CONIlVIERCIAL TESTING & ENGINEERING ANALYST: l/1~.~.~.~ <br />COMMENTS: <br />4/14/99 <br />F Sze, <br />