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Geota1Y tical Laboratoriestc. <br /> 1405 Kansas Avenue Modesto,CA 95351 Phone (209) 572-0900 Fax (209)572-0916 <br /> CERTIFICATE OF ANALYSIS <br /> IkeP ort# M333-31 BTEX Date 12/05/01 <br /> M J Kloberdanz & Associates Project MUSD Date Recd 11/29/01 <br /> P O Box 576981 Date Started 11/30/01 <br /> Modesto CA 95357 PO# Date Completed 12/03/01 <br /> Date Sampled 11/29/01 <br /> ' Sampler MJ Kloberdanz <br /> Sample ID Lab ID RL Method Analyte Results Units <br /> MW-2-15' M203757 5 0 8021E Benzene ND pg/Kg <br /> 50 Toluene ND pg/Kg <br /> 5 0 Ethyl Benzene ND pg/Kg <br /> 5 0 Total Xylenes ND pg/Kg <br /> ' Surrogate Amnt Spiked Amnt Rec % Recovery QC Limit % <br /> a,a,a-TFT 250 220 88 66-117 <br /> ' MW-2-20' M203758 5 0 8021B Benzene ND pg/Kg <br /> 50 Toluene ND pg/Kg <br /> 50 Ethyl Benzene ND pg/Kg <br /> ' 50 Total Xylenes ND pg/Kg <br /> Surrogate Amnt Spiked Amnt Rec % Recovery QC Limit% <br /> a,a,a-TFT 250 184 736 66-117 <br /> ' MW-2-30' M203759 50 8021 B Benzene ND pg/Kg <br /> 50 Toluene ND pg/Kg <br /> 50 Ethyl Benzene ND pg/Kg <br /> ' 50 Total Xylenes ND pg/Kg <br /> ' Surrogate Amnt Spiked Amnt Rec % Recovery QC Limit% <br /> a,a,a-TFT 250 192 76 8 66-117 <br /> • <br /> ' Mario D'Onofrio Donna Keller <br /> Chemist Certification # 1157 Laboratory Director <br />