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SAMPLE ID: 2_000-115 <br />CLIENT NAME: Twenty Mile Coal Conlpanp_ <br />ATI LOT M 062116-2 <br />SAMPLE DATE: 6/20/2016_ TIME: 13:30P <br />TEST START: 06/21/2016 13:35P <br />TEST FINISH: 06/23/2016 13:35P <br />AMMONIA: ND <br />HARDNESS: 96.44 mg/L <br />ALKALINITY: 60.53 mg/L <br />CHLORINE- ND <br />4880 Robb Street, Suite 8 <br />Wheat Ridge, CO 80033 <br />(303) 621-4880 www.aqua-toxxom <br />ACUTE WET TOXICITY REPORT <br />TEST RESULT LCs°. ?100% <br />50% MORTALITY TEST: PASS <br />% SURVIVAL 100%: 90% <br />ORGANISM Daphnia manna <br />ORGANISM AGE: <24 hours old <br />fresh <br />D.O.: 6.65 mg/L <br />PH: 7.67 <br />CONDUCTIVITY: 308 microS <br />TEMPERATURE: 20.7 deg C <br />URVIVAL DATA DILUTIONS (%) <br />DATE (HOURS) CONTROL 6.25 12.5 25 50 75 100 <br />6/21/2016 INITIAL <br />6/22/2016 24 <br />6/23/2016 48 <br />MORTALITY <br />% SURVIVAL <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />19 <br />20 <br />20 <br />20 <br />20 <br />20+.V <br />7.6/7.8 <br />19 <br />'19 <br />19 <br />20 <br />20 <br />201 <br />8.2/8.9 <br />19.8/20.7 <br />1 <br />_ <br />1 <br />0 <br />0 <br />095% <br />19.8/20.7 <br />SPEAltMA-KAROER <br />95% <br />95% <br />100% <br />100% <br />100 <br />)AILY CHEMISTRY - (MIN/MAX) DILUTIONS (%) <br />CONTROL 6.25 12.5 25 50 75 100 <br />CONDUCTIVITY (microS) <br />D.O. (mg/L) <br />PH <br />TEMPERATURE_ (deg C) <br />308/316 <br />481/487 <br />666/675 <br />1041/1046 <br />1777/1788 <br />2510/2520 <br />3240/3250 <br />6,7/7.2 <br />6.817.3 <br />6,917.4 <br />7.017,5 <br />7.1/7.6 <br />7.3!7.7 <br />7.6/7.8 <br />7.7/8.3 <br />7.7/8.4 <br />7.8/8.5 <br />7.918.6 <br />8.0/8.7 <br />8.1/8.8 <br />8.2/8.9 <br />19.8/20.7 <br />19.8/20.7 <br />19.8/20.7 <br />19.8/20.7 <br />19.8/20.7 <br />19.8/20.7 <br />19.8/20.7 <br />G_E_NERAL CHEMISTRY - 2000-115 <br />AMMONIA: 0.48 mg/L <br />DO„r,,,,, 7.83 mg/L <br />HARDNESS: 288.08 mg/L <br />DO.R.3--.°: NA <br />ALKALINITY: 814.60 mg/L <br />PH. 8.17 <br />CHLORINE: ND <br />CONDUCTIVITY: 3,240 microS <br />NOEC LOEC <br />LCSO (Lethal: Concentration 50%) METHOD REFERENCE <br />EPA -821-R-02.012 October 2002 pg. <br />100% <br />>100% <br />>100% CALCULATION METHOD <br />SPEAltMA-KAROER <br />ADDITIONAL COMMENTS <br />x <br />Analysis <br />Conducted by- - <br />y, - Reviewed by <br />Date: <br />Date. ' ,-I <br />/ "Y ' <br />