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~~~ COMMERCIAL TESTING 6 ENGINEERING CO <br />I: <br />COLORADO - CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Snowcap Coal CompanX CDP5 NO.: CO-0027146 OUTFACE: Ol6 <br />TYPE TEST: ROUTINE: XX ACCELERATED:- TEST SPECIES: C. cttebia <br />TEST RESULTS: LCSO: >I00% STATISTICAL METHOD: Binomial <br />TEST TIME & DATE: BEGIN 1155 AM 07/30/02 END 1120 AM 08/01/02 <br />DILUTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 0.2% 25% 50% 75% 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 19 20 19 20 19 <br /> <br /> <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESID. Cl " (mg/l): <0.1 <br />HARDNESS (mg/1): RECEIVING WATER EFFLUENT: 35 RECON WATER: 120 <br />ALKALINITY (mg/1): RECEIVING WATER EFFLUENT: 1210 RECON WATER 85 <br />pH: INITIAL: CONTROL 8.6 100% EFFLUENT 7.7 <br />FINAL: CONTROL 8.4 100% EFFLUENT 9.0 <br />TOTAL AMMONIA AS N (mg/1): INITIAL 100%: <L0 FINAL 100%: <1.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />LABORATORY: COMMERCIAL TESTING & ENGLNEERING ANALYST: <br />COMMENTS: <br />-szs <br />~j <br />4/14/99 <br />