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LTC- COMMERCIAL TESTING & ENGINEEflING CO. <br />SxCE 900E <br />COLORADO - CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Beaz Coal Comoanv CDPS NO.: CO-0044377 OUTFACE: 001 <br />TYPE TEST: ROUTINE: XX ACCELERATED:- TEST SPECIES: ~romelas <br />TEST RESULTS: LCS°: >100% STATISTICAL METHOD: Probit <br />TEST TIME & DATE: BEGIN 1135 AM 05/01/02 END 1040 AM 05/05/02 <br />DILUTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 1.7% 25% 50% 75% 100% <br /># START OF TEST: 40 40 40 40 40 40 <br /># ALIVE AFTER 24 HRS: 40 38 40 40 40 40 <br /># ALIVE AFTER 48 HRS: 40 38 40 40 40 38 <br /># ALIVE AFTER 72 HRS: 40 38 39 38 37 38 <br /># ALIVE AFTER 96 HRS: 40 38 36 36 35 38 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESID. Cl - (mg/1): NA <br />HARDNESS (mg/1): RECEIVING WATER EFFLUENT: 0 RECON WATER: 135 <br />ALKALINITY (mg/1): RECEIVING WATER EFFLUENT: 1730 RECON WATER: 90 <br />pH: INITIAL: CONTROL 8.3 100% EFFLUENT 8.8 <br />FINAL: CONTROL 8.2 100% EFFLUENT 9.1 <br />TOTAL AMMONIA AS N (mg/1): INITIAL 100%: NA FINAL 100%: NA <br />WERE ALL TEST CONDTIIONS TN CONFORMANCE WITH DIVISION GUIDELINES? NO <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: Ammonia and CI- analysis was not <br />eA rfOrmed because both required colorimetric analysis, which was difficult due to the dazk amber hue of the <br />eilluent. /~ ~_ <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: (,/(.~~.~.. <br />COMMENTS: <br />4/14/99 <br />