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Enviro -Chem Analytical, Inc. <br />2493 Hwy 6850 Unit 7 <br />Grand Junction, CO 81505 <br />Test Acceptability <br />Chronic Toxicity Testing <br />OXBOW — July 2013 <br />2 Species <br />For the fathead minnow test to be acceptable, minimum control organism <br />survival must be >/ =80% and mean dry weights for the controls must be >/ =0.250 <br />Mg. <br />Ceriodaphnia dubia control organism survival must be >/ =80 %, and reproduction <br />must be >/ =15.0 young per surviving female. <br />Statistical Analyses <br />Formal statistical analysis of the chronic data was completed as necessary. If <br />appropriate, the test's chronic data was subjected to analyses for normality and <br />homogeneity. All statistical analyses were completed using ToxCalc v5.0.23 <br />obtained from TidePool Scientific Software and Michael Ives. <br />If appropriate, the test's chronic data was subjected to analyses for normality and <br />homogeneity. NOECs and LOECs were determined using the appropriate <br />method as per the EPA data flow sheet. Inhibition concentrations were <br />determined using the IC p format. <br />5 <br />