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404 N Wiget Lane <br /> Sequoia Walnut Creek,925)988-9600 <br /> FAX(925)S*&%73 <br /> Analytical www seq"°Ia'abs com <br /> Gettler Ryan Chem Project ID Tosco#11194 Sampled 3/16/00 <br /> 6747 Sterna Court Suite 7 Sample Descript Wates Received 3117100 <br /> Dublin,CA 94568 Analysts Method See below <br /> Attention Deanna L Harding Lab Number W003490-01 Reported 3/29/00 <br /> STATIC HAZARDOUS ABBREVIATED SCREEN BIOASSAY <br /> Spectres Pumphales promelas <br /> Common Name Fathead Minnow Organisms/Tank 10 <br /> Organisms/Conc. 20 <br /> Tank Depth 13 cm <br /> Tank Volumc 10 L <br /> Min length 30 mm Acclimation Temp1E-- <br /> Mean length 31 mm Max.length 33 mm Supplier Sticklebacks Unlimited <br /> Mm weight -D-4T-g <br /> Mean weight 052 g Max.weaght 0 56 g <br /> Alkalinity, mg/L Hardness, mg/L <br /> DihMon Water Synthetic Softwater Initial Final Initial Final <br /> Hardness 40-48 Control 27 29 53 55 <br /> 750 ppm 28 32 45 48 <br /> Duplicate 750 ppm 27 31 45 46 <br /> Initial 24 Hr 48 Hr 72 Hr 96 Hr <br /> •DATE 3121/00 3/27!00 3123100 3124100 3125100 <br /> DO C pH DO C pH #M DO I C pH #M DO C pH #M DO C pH #M Total <br /> mg/L Temp Units mg/L Temp Unita Dead mg/L Temp Units Dead mg/L Temp Unita Dead mg/L Temp Unita Dead Dead <br /> Control 93 20 75 68 22 75 0 69 21 750 71 21 75 0 70 20 75 0 0 <br /> 750 ppm 93 19 78 70 20 72 0 65 20 72 0 67 20 72 0 64 20 72 1 1 <br /> 250 ppm 94 19 77 74 20 74 0 70 20 72 0 68 1 20 1 72 1 63 20 72 1 1 1 <br /> Duplicate <br /> 750 ppm 93 19 1 78 1 72 1 20 1 72 1 0 1 64 20 1 71 0 68 1 20 1 72 0 62 2) 722 2 <br /> 250 ppm 94 19 77 75 20 74 0 70 20 72 1 69 20 72 2 66 20 72 2 2 <br /> pass X Fail <br /> Remarks The screon fails if> 40%of the fish die in the 750 ppm concentration <br /> Analyst M Kosovkiy Method Reference Static Acute Bioassay Procedures for Hazardous Waste Samples, <br /> November 1988,California Department of Fish and Game WPCL <br /> 4FQUOIA ANALYTICAL, ELAP#1271 <br /> aA00 D <br /> Aland <br /> Laoratory Director <br />