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SEQUOIA ANALYTICAL <br /> Chesapeake680 Redwood City, CA <br /> (415) 364-9600 • FAX(416) 364-9233 <br /> RESNA- Escalon Client Project ID w04801,PG&E Stockton Service Ctr Sampled 1/12/93 <br /> 1710 Main Street Sample Descript Water, SP2(A-0) Received 1/15/93 <br /> Escalon, CA 95320 Analysis Method See below <br /> Attention Lois Frantz Lab Number 63012042 Reported 1/25/93 <br /> STATIC ACUTE HAZARDOUS WASTE BIOASSAY <br /> Species Pimephales promelas <br /> Static X Common Name Fathead Minnow Organisms/Tank 10 <br /> Cont Flow= Mean length 38 mm Min length 35 Replicates 2 <br /> Max length 41 Organisms/Conc 20 <br /> Mean weight 064 g Min weight —64-7 Tank Depth 13 cm <br /> Screening® Max weight T8-6 Tank Volume 1� <br /> Definitive Supplier Sticklebacks Unlimited <br /> Acclimation Temp 20 degrees C <br /> Dilution Water Synthetic Softwater Alkalinity, mg Hardness, mg <br /> Initial Final Initial Final <br /> Control 38 34 44 50 <br /> 1000 ppm 36 36 52 54 <br /> Duplicate 1000 ppm 1 35 37 1 52 50 <br /> Initial 24 Hr 48 Hr 72 Hr 96 Hr <br /> DATE 1/20/93 1/21/93 1/22/93 1/23/93 1/24/93 <br /> pH DO C pH # M DO C pH #M DO C pH # M DO C pH #M Tata! <br /> Temp Units mg/L Temp Units Dead mg/L Temp Units Dead mg/L Temp Units Dead mg/L Temp Units Dead Dead <br /> T <br /> Control 92 20 74 70 19 68 0 70 20 68 0 68 19 70 0 621 19 69 0 0 <br /> 100 ppm 92 20 74 76 19 69 0 64 20 67 0 71 19 70 0 71 1 19 70 0 0 <br /> 180 ppm 91 20 74 77 19 70 0 63 20 68 0 65 19 70 0 63 19 70 0 0 <br /> 320 ppm 92 20 7U47 19 70 0 69 20 68 0 67 19 70 0 61 19 7Q Q 0 <br /> 560pprn 92 20 719 70 0 60 20 68 0 67 1970 0 60 19 69 0 0 <br /> 1000 ppm 92 2Q 719 71 0 65 20 68 0 163 1 19 70 0 57 19 70 0 0 <br /> Duplicate 767C pH DO C pH # M DO C pH # M DO C pH #M DO C pH #M Total <br /> mg/L Temp Units mg/L Temp Units Dead mg/L Temp Units Dead mg/L Temp Units Dead mg/L Temp Units Dead Dead <br /> Control 92 20 74 70 19 68 0 70 20 68 0 68 19 70 0 62 20 69 0 0 <br /> 100 ppm 92 20 74 77 19 70 0 66 20 68 0 67 19 70 0 64 20 69 0 0 <br /> 180 ppm 92 20 74 77 19 70 0 61 20 67 0 71 19 70 0 69 20 70 0 0 <br /> 320 ppm 92 20 74 76 19 7Q 1 0 68 20 68 0 69 19 70 0 641 20 700 0 <br /> 560 ppm 92 20 75 79 19 71 0 70 20 69 0 63 19 69 0 60 20 69 0 0 <br /> 1000 ppm 93 20 76178 19 71 0 64 20 68 0 64 19 70 0 159 20 70 0 0 <br /> LC-50: > 1000 ppm <br /> LC-50 Dup: > 1000 ppm LC-50 Calculation Method Moving average angle <br /> Remarks <br /> Analyst D George / Method Reference Static Acute Bioassay Procedures for Hazardous Waste Samples, <br /> N Northey September 1987, California Department of Fish and Game WPCL <br /> SEQUOIA ANALYTICAL <br /> I L e <br /> P olect Manager a3012042waT <t> <br />