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L1~ COMMERCIAITESTING b ENGINEERINGCO. <br />SINCE 1Wpt <br />COLORADO - CDPS ~'1'ET TEST REPORT FORM -ACUTE <br />PERMITTEE: Twentvmile Coal Co. CDPSNO.: CO-0042]6] OUTFACE: FCBH-115 <br />TYPE TEST: ROUTINE: XX ACCELERATED:- TEST SPECIES: D.YI7QYYtQ <br />TEST RESULTS: LCso: > 100% STATISTICAL METHOD: <br /> <br />TEST TIME & DATE: BEGIN ]420 PM 04/02/02 END ]430 PM 04/04/02 <br />DILUTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 12.5% 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 /># ACNE AFTER 48 HRS: 20 20 20 20 19 15 <br /> <br /> <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESID. Cl - (mg/1): <0.1 <br />HARDNESS (mg/1): RECEIVING WATER: EFFLUENT: 545 RECON WATER 205 <br />ALKALINITY (mg/1):RECEIVING WATER EFFLUENT: 755 RECON WATER: 190 <br />pH: INITIAL: CONTROL 8.7 100% EFFLUENT 8.1 <br />FINAL: CONTROL 8.6 100% EFFLUENT 8.6 <br />TOTAL AMMONIA AS N (mg/1): INITIAL ] 00%: X3.0 FINAL l00%: X3.0 <br />WERE ALL TEST COND1T10NS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST DEV1AT10NS FROM TEST SPECIFICATIONS: <br />`~ <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: ~ti.'~~ <br />COMMENTS: <br />4/14/99 <br />-szc <br />