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GeoAnalytical Laboratories, Inc. <br /> 1405 Kansas Avenue Modesto,CA 95351 Phone (209) 572-0900 Fax (209) 572-0916 <br /> CERTIFICATE OF ANALYSIS <br /> Report# N190-13 Date: 7/24/02 <br /> City of Manteca - WQCF Project: Pre App Biosolids Date Rec'd: 7/09/02 <br /> 1001 West Center Street Date Started: 7/10/02 <br /> Date Completed: 7/17/02 <br /> Manteca CA 95337 PO# <br /> Date Sampled: 7/09/02 <br /> Time: <br /> Sampler: Marcia Baier <br /> Sample ID: Biosolids Stockpile <br /> Lab ID: N201758 <br /> Method RL Analyte Results Units <br /> SM2540B 0.001 Solids 92.1 % <br /> 350.2 0.0005 Ammonia-N 0.3160 % <br /> 351.3/350.2 0.005 Organic Nitrogen 1.20 % <br /> 351.3/300 0.005 Total Nitrogen 1.51 % <br /> 9040B NA pH 6.8 Std.Units <br /> 120.1 10 Specific Conductance(EC) 47740 pmhos/cm <br /> 365.2 0.5 Phosphorous 18700 mg/Kg <br /> 6010B 1.0 Potassium 2210 mg/Kg <br /> 6010B 5.0 Boron 18 mg/Kg <br /> 300.0 1.0 Chloride 3000 mg/Kg <br /> 6010B 1.0 Sodium 1920 mg/Kg <br /> 300.0 0.0001 Nitrate as N ND <br /> � 36 a Donna Keller <br /> norganic Supervisor Certification # 1157 Laboratory Director_ <br />