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1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> McCampbell Analytical, Inc. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> When Quality Counts" http://www.meewnpbell.com/E-mail:main@mccampbell.com <br /> Stockton Rubber Mfg.Co.,Inc. Client Project ID: Sandblast Date Sampled: 04/23/12 <br /> Date Received: 11/15/12 <br /> 5023 N.Flood Rd. <br /> Client Contact: Luis Cadena Date Extracted: 11/16/12-11/20/12 <br /> Linden,CA 95236 Client P.O.: Date Analyzed: 11/16/12-11/20/12 <br /> CA Title 22 Acute Fish Bioassay Screen Test for Hazardous Waste <br /> Extraction Method: CA DFG(Polinsi&Miller) Analytical Method: CA DFG(Polinsi&Miller) Work Order: 1211461 <br /> Lab ID 1211461-002A Species Pimephales promelas Avg.Length(mm) 36.7 <br /> Client ID Sandblast White Split Common Name Fathead Minnows Avg.Weight(g) 0.365 <br /> Matrix Solid Max Weight(g) 0.395 <br /> Control Water Soft Synthetic Water Min Wei ht O 0.304 <br /> Survival Dissolved 02(mg/L) pH Temperature(°C) <br /> oncentratio Comments <br /> A B A B A B A B <br /> Control 10 10 8.77 8.82 7.64 1 7.62 20.7 20.7 Analyst: AB <br /> 250 mg/L 10 10 8.83 8.80 7.93 7.94 20.7 20.7 <br /> 500 mg/L 10 10 8.85 8.84 7.85 7.87 20.7 20.7 Date: 11/16/2012 <br /> 750 mg/L 10 10 8.81 8.83 7.82 7.82 20.7 20.7 Time: 1:00 PM <br /> Control 10 10 8.68 8.73 7.61 7.59 20.5 20.5 Analyst: AB <br /> 250 mg/L 10 10 8.76 8.71 7.82 7.84 20.5 20.5 <br /> 500 mg/L 10 10 8.78 8.73 7.80 7.82 20.5 20.5 Date: 11/17/2012 <br /> 750 mg/L 10 10 8.70 8.65 7.79 7.75 20.5 20.5 Time: 1:00 PM <br /> Control 10 10 1 8.58 8.66 7.58 7.55 20.3 20.3 Analyst: CM <br /> 250 mg/L 10 10 8.70 8.65 7.79 7.80 20.3 20.3 <br /> 500 mg/L 10 10 8.68 8.62 7.76 7.78 20.3 20.3 J Date: 11/18/2012 <br /> 750 mg/L 10 10 8.64 8.57 7.77 7.73 20.3 20.3 Time: 1:00 PM <br /> Control 10 10 8.53 8.55 7.56 7.54 1 20.8 20.8 Analyst: AB <br /> 250 mg/L L 10 L- 10 _ 8.61 8.59 J_ 7.73 7.75 20.8 20.8 <br /> 500 mg/L 10 10 8.57 8.50 7.74 7.72 20.8 20.8 Date: 11/19/2012 <br /> 750 mg/L 10 10 8.53 8.54 7.75 7.71 20.8 20.8 Time: 1:00 PM <br /> Control 10 10 8.44 8.41 7.53 7.52 20.9 20.9 I Analyst: AB <br /> 250 mg/L 10 10 8.49 8.46 7.64 11 <br /> 7.66 20.9 20.9 <br /> 500 mg/L 10 10 8.42 8.38 7.66 7.65 20.9 20.9 Date: 11/20/2012 <br /> 750 mg/L 10 10 8.39 8.35 1 7.68 7.66 20.9 20.9 Time: 1:00 PM <br /> Initial Final <br /> Control 750 mg/L Control 750 ml <br /> Hardness(mg/L,as CaCO3) 40 45 41 46 <br /> Alkalinity(mg/L,as CaCO3) 29.8 35.32 33.72 37.92 <br /> Conductivity(uS/cm) 161.9 161.6 170.4 160.7 <br /> Salinity(mLL) N/A N/A N/A N/A <br /> Result:Mortality<40%at 750mg/L Therefore LC50>=500mg/L('non-hazardous') <br /> 96 LC50: N/A LC50 Method: N/A <br /> 95%Upper Confident Limit: N/A 95%Lower Confident Limit: N/A <br /> DHS FLAP Certification 1644 Angela Rydelius,Lab Manager <br /> Page 6 of 6 <br />