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12/15/15 INITIAL <br />12/16/15 24 <br />12/17/15 48 <br />MORTALITY <br />% SURVIVAL <br />Aqua-Tox, Inc. <br />20 <br />4880 Robb Street, Suite 8 <br />20 <br />Wheat Ridge, CO 80033 <br />20 <br />(303) 621-4880 www.aqua-tox.com <br />20 19 20 20 20 20 <br />18 <br />ACUTE TOXICITY REPORT <br />15 <br />Daphnia magna <br />5 <br />100% 95% 100% 100% 100% 90% <br />SAMPLE ID: 2000-84 <br />TEST RESULT LC,,,: >100% <br />CLIENT NAME: Twenty Mile Coal Company <br />50% MORTALITY TEST PASS <br />ATI LOT* 121515-1 <br />% SURVIVAL 100%: 75% <br />SAMPLE DATE: 12/14/15 TIME: 13:30P <br />ORGANISM: Daphnia magna <br />TEST START: 12/15/201514:10P <br />TEST FINISH: 12/17/2015 14:10P <br />ORGANISM AGE: <24 hours old <br />TYPE OF TEST: Acute, LCr,,, 48-hour static, renewal, moderately paid fresh synthetic dilution water <br />MODERATELY HARD FRESH SYNTHETIC DILUTION WATER CONSTITUENT <br />AMMONIA: ND <br />D.O.: 6.86 mg/L <br />HARDNESS: 95.60 mg/L <br />pH: 7.84 <br />ALKALINITY: 53.57 mg/L <br />CONDUCTIVITY: 318 microS <br />CHLORINE: ND <br />TEMPERATURE: 20.3 deg C <br />SURVIVAL DATA <br />DILUTIONS (%) <br />DATE(HOURS) CONTROL 6.25 12.5 <br />25 50 75 Inn <br />12/15/15 INITIAL <br />12/16/15 24 <br />12/17/15 48 <br />MORTALITY <br />% SURVIVAL <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 19 20 20 20 20 <br />18 <br />20 19 20 20 20 18 <br />15 <br />0 1 0 0 0 2 <br />5 <br />100% 95% 100% 100% 100% 90% <br />75% <br />i <br />DAILY CHEMISTRY - (MIN/MAX) DILUTIONS (%) <br />CONTROL 6.25 12.5 25 50 75 100 <br />CONDUCTIVITY (microS) <br />D.0 (mg/L) <br />pH <br />TEMPERATURE (deq C) <br />318/323 <br />661/667 <br />1005/1013 <br />16910702 <br />3060/3080 <br />4440/4460 <br />5810/5830 <br />6.9/73 7.1/7.4 7.3/7,5 7.50.6 7.7/7.7 7.8171 9 <br />8.0/8.1 <br />7.8/83 7.9/8.4 8.0/8.5 8.1/8.6 8.3/8.7 84/8.8 <br />8.5/8.9 <br />19.9/20.3 19.9/20.3 19.9/20.3 '19.9120.3 19.9/20.3 19.9/20.3 <br />19.9/20.3 <br />GENERAL CHEMISTRY - 2000-84 <br />AMMONIA: 0.06 mg/L DO,M,;,,: 8.11 mg/L <br />HARDNESS: 1,192.01 mg/L DOallaraoration: NA <br />ALKALINITY: 58.96 mg/L pH: 8.45 <br />CHLORINE: ND CONDUCTIVITY: 5,810 microS <br />NbEC. LOEC - CALCULATION METHOD ' METHOD REFERENCE <br />50`%a 75% SPEARMAN-KAR6ER EPA -821-R-02-012 October 2002 pg 78 <br />ADDITIONAL COMMENTS: <br />Analysis / <br />Conducted by: Reviewed by <br />Date: Date. T p <br />