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GeoAnalytical Laboratorie3; Inc. <br />1405 Kansas Avenue Modesto, CA 95351 Phone (209) 572-0900 Fax (209) 572-0916 <br />CERTIFICATE OF ANALYSIS <br />Report# M340-21 Date: 12/11/01 <br />Wright Environmental Services, <br />67 E 10th Street <br />Tracy CA 95376 <br />project: Joe Wilson Center <br />PO# <br />Date Rec'd: 12/06/01 <br />Date Started: 12/07/01 <br />Date Completed: 12/10/01 <br />Date Sampled: 12/06/01 <br />Sampler. ScottCragin <br />Sample ID Lab ID RL Method Analyte Results Units <br />GW -1 M312042 0.3 8021B <br />Benzene <br />ND <br />pg/L <br />0.3 <br />Toluene <br />ND <br />itg/L <br />0.3 <br />Ethyl Benzene <br />ND <br />pg/L <br />0.6 <br />Total Xylenes <br />ND <br />itg/L <br />0.05 5030/Luft <br />Gasoline <br />ND <br />mg/L <br />Surrogate <br />Amnt Spiked <br />Amnt Rec. % Recovery <br />QC Limit % <br />a,a,a-TFT <br />25.0 <br />22-7 90.8 <br />70-125 <br />GW -2 M312043 0.3 8021B <br />Benzene <br />VD <br />pg/L <br />0.3 <br />Toluene <br />ND <br />pg/L <br />0.3 <br />Ethyl Benzene <br />ND <br />Pg/L <br />0.6 <br />Total Xylenes <br />ND <br />pg/L <br />0.05 5030/Luft <br />Gasoline <br />IND <br />mg/L , <br />Surrogate <br />Amnt Spiked <br />Amnt Rec. % Recovery <br />QC Limit % <br />a,a,a-TFT <br />25.0 <br />23.3 93.2 <br />70-125 <br />e <br />C/ <br />'Mario D'Onofrio <br />Chemist <br />Certification # 1157 <br />!CIL^.a Keller. <br />Laboratory Director <br />