Laserfiche WebLink
Aqua-Tox, Inc. <br />4880 Robb Street, Suite 8 <br />Wheat Ridge, CO 80033 <br />(303) 621-4880 aqua-tox.com <br />ACUTE TOXICITY REPORT <br />Shales oromelas - Fathead Minnow <br />LIENT NAME: Twentymile Coal Company SAMPLE I.D.: 090908-1 <br />% MORTALITY TEST: Pass TEST RESULT LC50: >100% <br />SURVIVAL IN 100% DILUTION: 95% <br />AMPLE DATE: 9-8-08 TIME: 11:35AM CLIENT ID: Site 62 <br />RGANISM: Fathead Minnow AGE: DOH 9-5-08 <br />EST START: 9-9-08 12:15PM TEST FINISH: 9-13-08 12:15PM <br />YPE OF TEST: LC50 96 hours static, renewal, moderately hard fresh synthetic dilution water. <br />AMMONIA: ND <br />HARDNESS: 90 mg/L <br />ALKALINITY: 54.96 mg/L <br />pH: 8.00 <br />oURVIVAL DATA <br />DATE HOURS CONTROL 6.25 <br />9/9/2008 INITIAL <br />9/10/2008 24 <br />9/11/2008 48 <br />9/12/2008 72 <br />9/13/2008 96 <br />MORTALITY: <br />% SURVIVAL: <br />CONDUCTIVITY (micros) <br />D.O. (mg/L) <br />pH <br />TEMPERATURE (deg C) <br />LION WATER CONSTITUENT <br />D.O.: 7.20 mg/L <br />CHLORINE: ND <br />TEMPERATURE: 19.7 deg C <br />DILUTIONS (%) <br />125 25 50 75 100 <br />20 20 20 20 20 20 20 <br />20 20 20 20 20 20 20 <br />20 20 20 20 20 20 19 <br />20 20 20 20 20 20 19 <br />20 20 20 20 20 20 19 <br />0 0 0 0 0 E 1 <br />100% 100% 100% 100% 100% 100% 95% <br />- (MIN/MAX) DILUTIONS (%) <br />(:r)NTPOI R 9? 12 ti 25 50 75 100 <br />340/356 626/687 870/937 1383/1441 2320/2470 3100/3340 3850/4130 <br />6.1/7.2 5.4/7.3 5.3/7.3 5.3/7.4 5.3/7.7 5.5/7.9 6.2/8.3 <br />7.5/8.2 7.5/8.1 7.6/8.2 7.9/8.3 8.1/8.3 8.0/8.2 7.9/8.1 <br />19.5/20.2 19.5/20.2 19.5/20.2 19.5/20.2 19.5/20.2 19.5/20.2 19.5/20.2 <br />GENERAL CHEMISTRY - SAMPLE <br />AMMONIA: ND D.O.: 8.20 mg/L <br />HARDNESS: 2,230.5 mg/L CHLORINE: ND <br />ALKALINITY: 401.24 mg/L TEMPERATURE: 19.7 deg C <br />pH: -7.98 D.O AFTER AERATION: NA <br />"ANOEC-" CALCULATION"METHOD%. METHOD'REFERENCE, ` <br />100% SPEARMAN-KARBER EPA -821-R-02-012 October 2002 pg.78 <br />ADDITIONAL COMMENTS: <br />Analysis <br />Conducted by: Reviewed by: <br />Date: Date: