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BLOCK ENVIRONMENTAL SERVICES <br /> Laboratory Division <br /> 2455 Estand Way <br /> Pleasant Hill CA 94523 <br /> Date October 31,1994 (510)686-3215 FAX 686-0399 <br /> To Mr Ron Chew <br /> Pace Inc <br /> 11 Digital Drive <br /> Novato, CA 94949 <br /> From < Phyllis Riboni <br /> Chronic and Acute Effluent <br /> Testing Specialist <br /> Julianne C Fegley <br /> Laboratory Coordinator <br /> Subject Aquatic Toxicity Testing Results for Static Percent Survival Test <br /> P O #verbal <br /> SAMPLE MATRIX AND I.D One water sample #113052(STN #14. 4 EFF), Project No <br /> 10-085-05-001 <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 /> TES'T'ING PERIOD- Received 10/21/94, Tested 10/20/94 - 10/24/94 <br /> BIOASSAY TEST(S) Fathead minnow (Pimephales promelas) 96-hour Static Percent Survival <br /> Test <br /> METHODS: Methods for Measuring the Acute Toxicity of Effluents to Freshwater and <br /> Marine Organisms, third and fourth editions (EPA/600/4-85/013, EPA/600/4-901027) <br /> SUMMARY: <br /> Fathead minnow 96-hour percent survival in the Control was 95% <br /> Fathead minnow 96-hour percent survival in the 100% test concentration was 100% for <br /> sample #13052 (STN #4..14 EFF) <br /> 11191{ 'IfA 'Vmf"' <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, Chronic and Acute Effluent <br /> Testing Specialist, at the lab (510) 686-3215 <br /> • <br /> FH175sux src <br />