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LTA COMMEPCIALTESTING 6 ENGINEERINGCO. <br />s~NCe ~.o.. <br />COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Pittsburg & Midway Coal Co. CDPS NO.: CO-0032638 OUTFACE: 007 <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: Y. promelas <br />TEST RESULTS: LCso: >100% STATISTICAL METHOD: Binomial <br />TEST TIlvIE & DATE: BEGIN 1005 AM 03/19/02 END 1015 AM 03/23/02 <br />DILUTIONS (%EFFLUENT) <br />MEASUREMENTS 0% 12.5% ZS% 50% 75% 100% <br /># START OF TEST: 40 40 40 40 40 40 <br /># ALIVE AFTER 24 HRS: 40 40 40 40 40 40 <br /># ALIVE AFTER 48 HRS: 40 40 40 40 40 40 <br /># ALIVE AFTER 72 HRS: 40 40 40 40 40 39 <br /># ALIVE AFTER 96 HRS: 40 40 40 40 40 39 <br />RECEIVING WATER USED FOR DII.UTION? NO TOTAL RESID. Cl - (mg/1): <Q l <br />HARDNESS (mg/1): RECEIVING WATER: EFFLUENT: 2700 RECON WATER: 115 <br />ALKALINITY (mg/I): RECEIVING WATER: EFFLUENT: 345 RECON WATER: 80 <br />pH: INITIAL: CONTROL 8.5 100% EFFLUENT 8.0 <br />FINAL: CONTROL 8.3 ] 00% EFFLUENT 8.1 <br />TOTAL AMMONIA AS N (mg/I): INITIAL 100%: <1.0 FINAL 100%: <1.0 <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />IF NO, LIST DEVIATIONS FROM TEST SPECIFICATIONS: <br />~+, `--~ <br />LABORATORY: COMMERCIAL TESTING &. ENGINEERING ANALYST: W~^-~~~"~' <br />COMMENTS: <br />4/14/99 <br />,s <br />