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03/10/2006 15:40 2095720916 GEO PAGE 04/20 <br /> GeoAnalytical Laboratories, Inc. <br /> 1405 Kansas Avenue Modcsto,CA 95351 Phone(209)572-0900 Fax(209)572-0916 <br /> Date: 03/04/08 <br /> Report#i U8C0305 Project:Zelmer Well <br /> P - Date Reed. 03/03/08 <br /> Dietz Engineering&Construction,Inc <br /> 33233 So Koster Rd. Pl3#t!: <br /> Tracy,CA 95304 <br /> Volatile Organic Chemistry-Quality Control <br /> GeoAnalytical Laboratories,Inc. <br /> Reporting Spike Source 0/0REC RPD <br /> FA.Avtc Result Limit Units Leval Result °/aREC Limits RPD _ Limit Notes <br /> Batch U000694-EPA 50308 Prepared&Analyzed:03/03/08 <br /> Blank(U000694-BLKI) - -- - - - _ - -. -- -- <br /> acozene - - ND 0.3 u8/L <br /> Flhylbenzene ND 0.3 " <br /> "Toluene ND 0.3 " <br /> Xylenes,total ND 0.6 <br /> Gasoline ND 0.05 mg/L <br /> Surrogatc_a,a,a-Triflu0rotoluene 23.1 ugfL 23.00 92 70-125 <br /> LCS(U000694-SSI) ---- <br /> Iien=ne -- - -- - -10.1- -- 0.3 ug/L 10.00 101 80-120 - - <br /> Ethylbenzene 9.1 0.3 10.00 91 80-120 <br /> Toluene 9.2 0.3 10.00 92 80-120 <br /> Gasoline 0.22 0.05 mglL 0.2500 90 80-120 <br /> Surrogate:a,4a-Trifluarotoluene �_ - - 22.7 - - ^Y U9/11- 25.00 - -91 _ 70-125 <br /> Surragate:a,4a-Trifluormoluene 0.0287 wg/E 0.02500 115 70-123 <br /> _Matrix Spike(U000694-MS1) Source:USC0305-01 <br /> Benzene - - - - - 10.2 - - 0.3 ug/L 10.00 NO 102 54.8-129 - <br /> Ethylbenzene 9.1 0.3 10.00 NO 91 49.8428 <br /> 'Toluene 9.3 0.3 10.00 ND 93 53.9-127 <br /> Gasoline 0.21 0.05 tn8/1, 0.2500 ND 85 64-143 <br /> Surrogate:aa,a-Trifluorotoluene 11.7 ug/L 13.00 87 70425 <br /> Surrogate:a.a,44Hfluororoluene 0.0238 mgA 0.01500 95 70-115 <br /> Matrix Spike Dup(U00.0694-31SDI) - - Source:USCO305-01- -- <br /> Benzene - 10.0 --0-3--ug/L 10.00 ND 100 54.8-129 2 21.4 <br /> Ethylbenaene 8.9 03 10.00 ND 89 49.8-128 2 22.3 <br /> Toluene 9.2 0.3 10.00 NO 92 53.9-127 2 21.6 <br /> Gasoline 0.19 0.05 mglt. 0.2500 ND 77 64-143 10 22 <br /> Surrogate.•a4r,a-1}J7uororoluene 14.6 uglL 25.00 98 70-125 <br /> Surrogate:4a,a-7,rifluorot0luene 0.0232 M91L 0.02500 93 70-125 <br /> Certification i!2585 <br />