Laserfiche WebLink
WD JUL 2 4 2015 <br /> Pacific EcoRisk Environmental Consulting &Testing <br /> The test was initiated with the random allocation of 10 juvenile fathead minnows into each <br /> replicate container.These containers were placed in a temperature-controlled room at 20°C. <br /> under fluorescent lighting on a 16L:8D photoperiod. <br /> Each day,each replicate container was examined,and the number of live fish in each was <br /> recorded.Routine water quality characteristics(temperature.pH,and D.O.)of the treatment <br /> waters were measured and recorded for each replicate container each day. <br /> After 96 (t2)hrs,the test was terminated and the number of live fish in each replicate container <br /> was determined.The fish in a randomly selected Lab Control treatment replicate were then <br /> euthanized and measured for total length (to the nearest 0.1 mm) and weighed(to the nearest <br /> O.001 g).The resulting survival data for the waste treatments were evaluated to determine the <br /> LOo using the CET1S`statistical software (Tidepool Scientific.McKinleyville.CA). <br /> 3.RESULTS <br /> 3.1 Effects of the waste Sample on Fathead Minnows <br /> The results of this test are summarized in Table 1.The LCso of this sample was>750 mg/L. <br /> which is greater than the Title 22 "Hazardous Waste"classification threshold of 500 mg/L: <br /> accordingly,this sample should not be considered"hazardous"with_res�ect to fish toxicity. <br /> The test data and summary of statistics for this test are presented in Appendix B. <br /> Table 1. Results of the hazardous waste toxicity evaluation of the waste sample"22029-1". <br /> Waste Sample Treatment Level Mean r/r Survival <br /> Lab ControlI W <br /> 250 mg/L. - _ 100 <br /> 500 mg/L 100 <br /> -- 750 mg11. mtIQO <br /> Summary of Key Statistic <br /> LCSu L >7tiO <br /> ..., <br />