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BLOCK ENVIRONMENTAL SERVICES <br /> Laboratory Division <br /> 2455 Estand Way <br /> PleaDate December 19, 1995 (510) rn 3 CA 94523 <br /> (510)686 3215 FAX 686-0399 <br /> To Ms Robin Byars <br /> American Environmental Network <br /> 3440 Vincent Road <br /> Pleasant Hill, CA 94523 <br /> From Prepared by <br /> Phyllis Riboni-Hustead <br /> Chronic and Acute Critical Life Stage Testing Specialist <br /> Reviewed by <br /> Julianne C Fegley <br /> Laboratory Coordinator <br /> Subject Aquatic Toxicity Testing Results for Static Percent Survival Test <br /> P O #749 <br /> SAMPLE MATRIX AND I.D.: One water (EFF) sample #14101 Project No 9512001 <br /> TREATMENT DILUTIONS (%): 100 and Control run in duplicate using carbon filtered tap <br /> water with 10 fish/5 L tank and 20 fish/treatment <br /> TESTING PERIOD: Received 12/01/95, Tested 12/01/95 - 12/05/95 <br /> • BIOASSAY TEST(S). Fathead minnow (Pimephales piomelas) 96-hour Static Percent Survival <br /> Test <br /> METHODS- Methods for Measuring the Acute Tmacity of Effluents to Freshwater and <br /> Marine Organisms, third and fourth editions (EPA/600/4-85/013, EPA/600/4-90/027) <br /> SUMMARY. <br /> Fathead minnow 96-hour percent survival in the Control was 10070 <br /> Fathead minnow 96-hour percent survival in the 100% test concentration was 100% <br /> The transcribed data sheets and chain-of-custody for this test are enclosed If you have any <br /> questions concerning this report please contact Phyllis Riboni-Hustead, Chronic and Acute <br /> Critical Life Stage Testing Specialist, at the lab (510) 652-7200 <br /> CC, <br /> r}� suusre �I��' � <br />