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f GeoAnalytical Laboratories, Inc. <br /> L <br /> 1405 Kansas Avenue Modesto,CA 95351 Phone(209)572-0900 Fax(209)572-0916 <br /> j Report# T7F2613 Project: Manteca Unified School Dist.Grounds Shop Date:07/03/07 <br /> L..1 <br /> M.J.Kloberdanz&Associates (MUSD) Date Recd:06/26/07 <br /> J` P.O:Box 576981 PO# <br /> ! Modesto,CA 95357 <br /> FFF......iii CERTIFICATE OF ANALYSIS Date Sampled: 06/26/07 <br /> Sampler: Mike Kloberdanz <br /> Sample ID Time: Lab ID RL Method Analyte Result Units Notes Analyzed Batch# <br /> B-5-32' 14:35 T71`2613-13 5.0 8021B Benzene ND ug/kg 06/29/07 T002122 <br /> 5.0 Ethylbenzene ND <br /> 5.0 Toluene ND <br /> 5.0 Xylenes,total ND <br /> Surrogate Amnt Spiked Amnt Recovered %Recovery QC Limit% Surrogate Notes <br /> a,a,a-Trifluorotoluene 250.0 235 94% 66-117 <br /> I <br /> i <br /> B-6-8' 15:20 T71`2613-14 5.0 8021B Benzene . ND. ug/kg 06/29/07 T002122 <br /> 5.0 Ethylbenzene ND <br /> 5.0 Toluene ND <br /> 5.0 Xylenes,total ND <br /> Surrogate Amnt Spiked Amnt Recovered %Recovery QC Limit%. Surrogate Notes <br /> a,a,a-Trifluorotoluene 250.0 206 82% 66-117 <br /> B-6-16' 15:35 T7F2613-15 5.0 8021B Benzene ND ug/kg 06/29/07 T002122 <br /> i <br /> 5.0 Ethylbenzene ND <br /> 5.0 Toluene ND <br /> 5.0 Xylenes,total ND <br /> I <br /> Surrogate Amnt Spiked Amnt Recovered %Recovery QC Limit% Surrogate Notes <br /> fa,a,a-Trifluorotoluene 250.0 222 89% 66-117 <br /> Fr B-6-24' 16:10 T7F2613-16 5.0 802113 Benzene ND ug/kg 07/02/07 T002122 <br /> 5.0 Ethylbenzene ND <br /> 5.0 Toluene ND <br /> 5.0 Xylenes,total ND <br /> Surrogate Amni Spiked Amnt Recovered %Recovery QC Limit% Surrogate Notes <br /> a,a,a-Trifluorotoluene 250.0 256 102% 66-117 <br /> LB-6-28' 16:35 T71`2613-17 5.0 8021B Benzene ND ug/kg 06/29/07 T002122 <br /> 5.0.. Ethylbenzene ND <br /> 5.0 Toluene ND <br /> 5.0 Xylenes,total ND <br /> Surrogate Amnt Spiked Amnt Recovered %Recovery QC Limit% Surrogate Notes <br /> a,a,a-Trifluorotoluene 250.0 230 92% 66-117 <br /> B-6-28'H20 16:40 T71`2613-18 0.3 8021B Benzene ND ug/L 06128/07 T002121 <br /> 0.3 Ethylbenzene ND <br /> 0.3 Toluene ND <br /> 0.6 Xylenes,total ND <br /> Surrogate Amnt Spiked Amnt Recovered %Recovery QC Limit% Surrogate Notes <br /> ii#rrr a,a,a-Trifluorotoluene 25.0 21.3 85% 70-125 <br /> F. Certification#2585 <br /> i.i <br /> f <br />