Laserfiche WebLink
Pacific EcoRisk Environmental Consulting & Testing <br />3. RESULTS <br />3.1 Effects of the Waste Sample Designated "Entrance Trailer -East 1 Gallon Jug Pink - <br />Cleans" on Fathead Minnows <br />The results of this test are summarized in Table 1. The LC50 of this sample was <250 mg/L, <br />which is less than the Title 22 "Hazardous Waste" classification threshold of 500 mg/L; <br />accordingly, this sample should be considered "hazardous" with respect to fish toxicity. The test <br />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 "Entrance <br />Trailer -East 1 Gallon Jug Pink -Cleans". <br />Waste Sample Treatment Level Mean % Survival <br />Lab Water Control <br />100 <br />pH 8.5 Control <br />100 <br />250 mg/L <br />0 <br />500 mg/L <br />0 <br />750 mg/L <br />0 <br />Summary of Key Statistics <br />LCso = <br /><250 mg/L <br />3.2 Effects of the Waste Sample Designated "Entrance Trailer -East All Supercleaner White <br />Powder" on Fathead Minnows <br />The results of this test are summarized in Table 2. 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 respect to fish toxicity. The <br />test data and summary of statistics for this test are presented in Appendix C. <br />Table 2. Results of the hazardous waste toxicity evaluation of the waste sample "Entrance <br />Trailer -East All Supercleaner White Powder". <br />Waste Sample Treatment Level Mean % Survival <br />Lab Water Control 100 <br />250 mg/L 100 <br />500 mg/L 95 <br />750 mg/L 100 <br />Summary of Key Statistics <br />LC50 = 1 >7.50 mg/L <br />Page 3 <br />6/21 <br />