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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921; 0100 <br /> Touchstone Developments Client Project ID Chevron 9-4183 Sampled 4/10/96 <br /> 781 Kingston Sample Descript DOSP 1(A-D)Comp Received 4/10/96 <br /> Oakland, CA 94611 Analysis Method See below <br /> Attention Robert Mallory Lab Number 9604-F67 01 Reported 4/29/96 <br /> STATIC ACUTE HAZARDOUS WASTE BIOASSAY- DEFINITIVE <br /> Species Pimephales promelas Organisms/Tank 10 <br /> Common Name Fathead Minnow Organisms/Cone 20 <br /> Tank Depth 13 cm <br /> Mean length 41 mm Min length 37 mm Tank Volume <br /> Max length 45 mm Supplier Sticklebacks Unlimited <br /> Mean weight 0 37 g Min weight 0 28 g Acclimation Temp 19 °C <br /> Max weight 0 56 g <br /> Control Water Synthetic Softwater Alkalinity, mg Hardness, mg <br /> Hardness 40-48 Initial Final Initial Final <br /> Control 31 38 42 46 <br /> 1000 ppm 38 34 44 44 <br /> Duplicate 1000 ppm 29 38 48 42 <br /> Initial 24 Hr 48 Hr 72 Hr 96 Hr <br /> DATE 4/25/96 1 4/26/96 4/27/96 4/28/96 4/29/96 <br /> DO C pH DOC 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 79 19 77 65 19 73 0 66 19 72 0 66 19 73 0 63 19 72 0 0 <br /> 1000 ppm 79 19 76 61 19 73 0 60 19 71 0 36 19 71 0 51 19 72 0 0 <br /> 560 ppm 79 19 77 66 19 74 0 65 19 72 0 35 19 72 0 55 19 72 0 0 <br /> 320 ppm 79 1 19 77 61 19 73 0 62 19 71 1 35 19 71 1 49 19 71 1 3 <br /> 180 ppm 79 19 78 63 19 73 0 61 19 71 0 34 19 71 2 46 19 71 1 3 <br /> 100 ppm 79 19 78159 19 73 0 63 19 71 0 33 19 72 0 52 19 71 0 0 <br /> Duplicate DO C 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 /> 1000 ppm 79 19 76 64 19 74 0 60 19 71 0 36 19 73 0 56 19 72 0 0 <br /> 560 ppm 79 19 77 67 19 74 0 65 19 72 0 35 19 71 0 51 19 71 2 2 - <br /> 320 ppm 79 19 77 65 19 73 1 62 19 71 0 35 19 72 0 57 19 72 0 1 <br /> 180 ppm 79 19 178 69 19 174 0 61 19 71 0 34 19 71 0 59 19 72 0 0 <br /> 100 ppm 79 19 78 63 19 73 0 63 19 171 1 0 33 1 19 1721 q 1581 19 1721 0 0 <br /> LC-50: > 1000 ppm <br /> LC-50 Calculation Method Binomial <br /> Remarks <br /> Analyst R Iverson Method Reference Static Acute Bioassay Procedures for Hazardous Waste Samples, <br /> November 1988, California Department of Fish and Game WPCL <br /> EQUOIA ANALYTICAL <br /> Kevin Follett 9604-F67 TTT <11> <br /> Project Manager <br />