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Jul 25 08 10.23a Enviro Chem Analytical 9702459270 p 2 <br />COLORADO - CDPS WET TEST REPORT FORM - CHRONIC <br />PERMITTEE Scncca Coal Company CDPS NO CO-0000221 OUTFALL. WTB <br />TEST TYPE- ROUTINE XX ACCELERATED TEST SPECIES: C. dubia <br />TEST RESULTS LETHALITY GROWTH STATISTICAL METHOD <br />Concentration w/ Statistical Difference >100% >100% Fishers/Dun n errs <br />Pass/Fail Pass NIA <br />IC25 >100% >10C% Bootstrap <br />Pa: ti'?ail Pass NIA <br />TEST TIME & DATE START June 17, 2008 END June 23. 2008 <br />10:30 AM 10:30 AM <br />DILUTION (% EFFLUENT) <br />MEASUREMENTS CONTROL 6.50% 13.00% 25.00% 50.00% 1000/0 <br />Da 1 % Survval 100 100 100 100 100 100 <br />Da 2 100 100 100 100 100 100 <br />Da 3 100 100 1.00 100 100 100 <br />Da y4 100 100 100 100 100 100 <br />Da 5 100 100 100 100 100 100 <br />Da 6 100 100 100 100 100 100 <br />Da 7 100 100 100 100 100 100 <br /> <br />Mean 3 Brood Total 256 264 271 24.5 25.7 25.1 <br /> <br />off 'Maximum/Minimum) 8.006-8.13 6.99-7.13 7.247 55 108-7 33 1 BF- 7:10 ; 61-7 93 <br />RECEIVING WATER USED FOR DILUTION? NO <br />WERE ALL TEST CONDITIONS IN CONFORMANCE WITH DIVISION GUIDELINES? YES <br />i F NO. I IST ALL DEVIATIONS <br />HARDNESS (MGIL' EFFLUENT 2410-2460 MHW 1NATER' 80.2 <br />ALKALINITY (MGIL) EFFLUENT; 206.81-223.55 MHW WATER, 69.5 <br />T. AMMONIA (MGIL) INITIAL EFFLUENT <1.0 <br />T RESIDUAL CHLORINE (MG/L) EFFLUENT. <01 <br />LABORATORY ENVIRO-CHEM ANALYTICAL, INC- ANALYST: _