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Aqua-Tox,, Inc. <br />4880, Robb; Street, Suite 8: <br />Wheat Ridge, CO 80033. <br />(303) 621-4880 www.aqua-tax.corm <br />ACUTE WET TOXICITY REPORT <br />SAMPLE ID: Site 200.0-84 TEST RESULT, LC,,: >100% <br />CLIENT NAME: Twenty Mile Coal Com an 50% MORTALITY'TEST: PASS <br />ATI LOT #. 041117-2 % SURVIVAL 11301/6: 75% <br />SAMPLE DATE: 4110/2.017 TIME: 12.:30 PM ORGANISM- Zjg,Phnia rr ggna <br />TEST START 411112.017 15:50 PM ORGANISM AGE: <24 hours old <br />TEST FINISH: 4113120'37 15:50 PM <br />E OF TEST. Acute.. LC,. 48-hour, static, renewal <br />AMMONIA: ND <br />HARDNESS: 93.03 m 91 <br />ALKALINITY: 6:1.03 rn.g/L <br />CHLORINE: ND <br />DATE (HOURS1 CONTROL 6.25 <br />4/1112017 INITIAL <br />4112/2017 24 <br />11312:017 48 <br />MORTALITY <br />% SURVIVAL <br />hard <br />D.C.: 6.7.6 mglL. <br />pal: 7.69 <br />CONDUCTIVITY: 314 m.icroS <br />TEMPERATURE: 20.5 deg C <br />DILUTIONS (%) <br />1?_5 25 r)n 74, inn <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />20 <br />'I9 <br />20 <br />20 <br />19 <br />19 <br />20 <br />20 <br />19 <br />19 <br />20 <br />19 <br />15 <br />0 <br />0 <br />1 <br />1 <br />0 <br />1 <br />1 5 <br />100°la <br />1005'- <br />95% <br />95°10 <br />100% <br />95% <br />1 75% <br />3AILY CHEMISTRY -(MINIMAX) DILUTIONS (%) <br />CONTROL 6.25 12,5 25 50 75 100 <br />CONDUCTIVITY {micros) <br />D.O. (mg/L)• <br />PI -1 <br />TEMPERATURE (deg C) <br />314/322 <br />651/659 <br />9871998 <br />166111675 <br />3010/3030 <br />435014370 <br />570075730 <br />6.817:4 <br />6.917.4 <br />TORR <br />7,117.4 <br />7.217.4 <br />7.317.4 <br />7.417.4 <br />7.718.3 <br />7.7f8.4 <br />7.8/8.5 <br />7.818.6 <br />7.9f8.7 <br />8.0.18.8 <br />8.118.9 <br />20.2.120.5 <br />20,.2120.5 <br />20.2120.5 <br />20.2120.5 <br />20.2120.5 <br />20.2120.5 <br />20.2/20.5 <br />GENERAL CHEMISTRY - Site 2000-84 <br />AMMONIA: 0.31 mg1L DO,,,-,dw, 7.42 mg./L <br />HARDNESS: 616.16 MAIL DOa�tere a� NA <br />ALKALINITY: _ 826_.36 mg1L pfd: 8,05 <br />CHLORINE: ND CONDUCTIVITY: 5,700 microS <br />NOEC LOEC LCs, (Lethal Concentration 50%) METHOD REFERENCE <br />EPA -821-R-02-012 Octnb,r 2x02 g.78 <br />50% 75'% >100% CALCULATION METHOD <br />- _--___ -.... _. - SPEARMAN-KARBER <br />Analysis <br />Conducted by: <br />Reviewed by: ` <br />Date: 11P1 617 __ <br />�ff.� <br />Reviewed by: <br />Date: <br />