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20 <br />20 <br />20 <br />-- <br />20 <br />�� <br />20 <br />I� <br />20 <br />100 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />19 <br />19 <br />20 <br />19 <br />20 <br />20 <br />20 <br />1 <br />1 <br />0 <br />1 <br />0 <br />0 <br />0 <br />95% <br />95% <br />100% <br />95% <br />100% <br />100% <br />100% <br />317/337 <br />431/436 <br />50 <br />727/739 <br />1106/1136 <br />1426/1482 <br />1 00 <br />1786/1825 <br />7.1/7.5 <br />7 3//7.5 <br />7.3/7 6 <br />7.2/8.5 <br />7.2/8 7 <br />7 2/9.0 <br />7 2/9 4 <br />8 2/8 2 <br />8 2/8.2 <br />8 2/8 2 <br />8 2/8.3 <br />8 2/8 3 <br />8 1/8 4 <br />8 1/8 4 <br />20 2/20.8 <br />20 2/20.8 <br />20 2/20.8 <br />20 2/20 8 <br />20 2/20 8 <br />20.2/20 8 <br />20.2/20.8 <br />1 <br />1 <br />1 <br />1 <br />Aqua -Tox, Inc. <br />4880 Robb Street, Suite 8 <br />Wheat Ridge, CO 80033 <br />(303) 621 -4880 www aqua -tox com <br />ACUTE TOXICITY REPORT <br />Daphnia magna <br />CLIENT NAME: Twentymile <br />50 % MORTALITY TEST: Pass <br />% SURVIVAL IN 100% DILUTION. 100% <br />SAMPLE DATE: 03 -12 -12 TIME: 14 00P <br />ORGANISM' Daphnia magna AGE: < 24 hours old <br />TEST START' 03 -13 -12 10:45 <br />TYPE OF TEST. LC50, 48 hours, static, renewal, <br />SAMPLE 1.0 : 031312 -1 <br />TEST RESULT LC50' >100% <br />CLIENT ID' 2000 -84 <br />TEST FINISH. 03 -15 -12 10'45 <br />moderately hard fresh synthetic dilution water. <br />MODERATELY HARD FRESH SYNTHETIC DILUTION WATER CONSTITUENT <br />AMMONIA' ND D.O D.O. 7 12 mg /L <br />HARDNESS: 84 04 mg /L CHLORINE ND <br />ALKALINITY 55.75 mg /L TEMPERATURE. 20 6 deg C <br />pH: 8 23 <br />SURVIVAL DATA <br />DATE (HOURS) CONTROL <br />INITIAL <br />24 <br />3/13/2012 <br />3/14/2012 <br />3/15/2012 48 <br />MORTALITY <br />% SURVIVAL: <br />DILUTIONS ( %) <br />6.25 12 5 <br />DAILY CHEMISTRY - (MIN /MAX) <br />0 <br />CONDUCTIVITY (micros) <br />D 0 (mg /L) <br />pH <br />TEMPERATURE (deg C) <br />6 25 <br />DILUTIONS ( %) <br />12. <br />GENERAL CHEMISTRY - SAMPLE <br />AMMONIA 0 09 mg /L <br />HARDNESS 461 23 mg /L <br />ALKALINITY 136 15 mg /L <br />pH 8.12 <br />D O 9.38 mg /L <br />CHLORINE. ND <br />TEMPERATURE. 20 6 deg C <br />D.O AFTER AERATION NA <br />ANOEC <br />100% <br />CALCULATION METHOD <br />SPEARMAN - KARBER <br />METHOD REFERENCE <br />EPA - 821 - R - 02 - 012 October 2002 pg 78 <br />ADDITIONAL COMMENTS <br />Analysis <br />Conducted by: <br />Date. <br />Reviewed by' <br />Date <br />