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J ` SEQUOIA' ANALYTICAL pCt- <br /> 1900 Bates Avenue • Suite LM Concord, California 94520 <br /> VED <br /> (510) 686-9600 FAX (510) 686-9689 r , <br /> Q., <br /> Et4CE, ,ANO <br /> 1 A ENGINE.R1Nr.c SC1l�iC. <br /> r <br /> c LO <br /> �Y. <br /> c►� <br /> r�o <br /> w AS}.hi..:. <br /> :!. <br /> EA Engineering Science&Tech. Client Project ID: EA-92-1/Arco#548/ Stockton Sampled: Mar 24, 1992 <br /> 41-A Lafayette Circle Sample Descript: Sail, SB1-0 Relogged: Mar 26, 1991 <br /> s>Lafayette, CA 94549 Analysis Method: See below <br /> .4'U:Attention: Brian Thomas Lab Number: #2031136 Reported: Apr 3, 1992 <br /> �f 7.oi l z -,s � ie1�o1�-��`�� <br /> STATIC ACUTE HAZARDOUS WASTE BIOASSAY <br /> Static X Species: Pimephales promeles Organisms/Tank: 10 <br /> Cont. Flow Common Name: Fat Head Minnow Replicates: 2 <br /> Mean length: 39 mm Organisms/Conc.: 20 <br /> Mean weight: 0.7 g Tank Depth: 13 cm <br /> Screening B Supplier: Sticklebacks Unlimited Tank Volume: 1.0 L <br /> Definitive Rx Acclimation Temp.: 19 degrees C <br /> Alkalinity, m L Hardness, mqZL <br /> Initial Final Initial Final <br /> Control 33 34 43 44 <br /> Dilution Water: Synthetic Softwater 100 ppm 36 37 44 45 <br /> ' 320 ppm 38 39 47 48 <br /> 1000 ppm 42 1 43 51 52 <br /> Initial 24 Hr 48 Hr 72 Hr 96 Hr <br /> ATE 3/27/92 3 28 92 3 29 92 3/30/92 3 3i 92 <br /> ' DO CtD C pH #M DO C pH # M DO C pH # M DO C pH # M Total <br /> mg/L TempL Temp Units Dead mg L Temp Units Dead mg L Temp Units Dead mg/L Temp Units Dead Dead <br /> Control 7.9 19 18 7.1 0 6.8 18 17.1 fl 7.3 19 7.1 0 7.4 20 7.1 0 0 <br /> ' <br /> 100 m 7.4 19 i8 7.2 Q 7.fl 18 7.1 fl 7.5 19 E7.2 <br /> fl 7.4 20 7.i fl fl <br /> 180 m 8.3 19 18 7.1 0 8.0 18 7.1 0 8.0 19 0 7.8 20 7.2 0 0 <br /> 320 m 86 19 18 7.1 0 8.6 18 7.2 0 8.3 19 0 7.9 20 7.2 0560 m 8.4 19 18 7.1 0 8.1 18 7.1 0 8.0 19 0 7.6 20 7.2 0100Q m 8.2 19 18 7.2 0 8.4 18 7.2 0 8.3 19 0 7.9 20 7.3 0 0 <br /> LC-50: >1000 ppm LC-50 Calculation Method: Moving average angle <br /> ' Remarks: <br /> 1 <br /> Analyst: D.Georr e_ Method Reference: Static Acute Bioassay Procedures for Hazardous Waste Samples, <br /> ' -September 1987, California Department of Fish and Game WPCL <br /> 1 <br /> #2031136.EEE <1> <br />