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LT~ COMMERCIAL TESTING & ENGINEERING CO. <br />swcE ~saa. <br />- COLORADO -CDPS WET TEST REPORT FORM -ACUTE <br />PERMITTEE: Bear Coal Company CDPS NO.: CO-0044377 OUTFACE: 001 <br />TYPE TEST: ROUTINE: XX ACCELERATED: TEST SPECIES: C ctubicr <br />- - <br />TEST RESULTS: LCsd 58.8% STATISTICAL METHOD: Probit <br />I , TEST TIME & DATE: BEGIN 1105 AM 09/24/02 END LO50 AM 09!26/02 <br />I <br />DII,UTIONS (% EFFLUENT) <br />MEASUREMENTS 0% 1.7% 25% 50% 75% 100% <br /># START OF TEST: 20 20 20 20 20 20 <br /># ALIVE AFTER 24 HRS: 20 20 20 20 18 9 <br /># ALIVE AFTER 48 LIRS: 20 20 i9 20 1 0 <br />RECEIVING WATER USED FOR DILUTION? NO TOTAL RESID. Cl - (mg/1): N!A <br />- HARDNESS (mg/I): RECEIVING WATER: EFFLUENT: 270 RECON WATER: 125 <br />-- ALKALINITY (mg/1): RECEIVING WATER: EFFLUENT: 2010 RECON WATER: 95 <br />pH: INITIAL: CONTROL 8.5 100% EFFLUENT 8.8 <br />FINAL: CONTROL 8.7 100% EFFLUENT 9.2 <br />TOTAL AMMONIA AS N (mg/O: INITIAL 100%: N/A FINAL 100%: N/A <br /> <br />WERE ALL TEST CONDITIONS 1N CONFORMANCE WITH DIVISION GUIDELINES? YES <br />- IF N0, LIST DEVIATIONS FROM TEST SPECIFICATIONS: ,/ <br />LABORATORY: COMMERCIAL TESTING & ENGINEERING ANALYST: ~-~ ~"'`~-~ <br />COMMENTS: Ellluent received discolored (dark amberLAmmonia colorimeter not useful due to eflIuent <br />discoloration. <br /> <br />4/!4/99 <br />:.~;, <br />