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COLUMBIA ANALYTICAL SERVICES, INC. r <br /> QA/QC:Report ��>�• <br /> Client: SOTA Environmental Service Request: L9604073 <br /> Project: U-Haul Stockton#709-50/#94HW021 Date Collected: NA <br /> Sample Matrix: Water Date Received: NA <br /> Date Extracted: NA <br /> Date Analyzed: NA <br /> Surrogate Recovery Summary <br /> BTEX and TPH as Gasoline <br /> EPA Methods 5030/8020/Modtfied 80I5/California DHS LUFr Method <br />' Percent Recovery Percent Recovery <br /> Sample Name Lab Code 4-Bromofluorobenzene 4-Bromofluorobenzene <br />' MW-1 L9604073-001 86 93 <br /> MW-2 L9604073-002 85 94 <br /> MW-3 L9604073-003 89 99 <br />' MW-4 L9604073-004 84 90 <br /> MW-5 L9604073-005 104 104 <br /> MW-6 L9604073-006 88 93 <br /> MW-7 L9604073-007 91 92 <br /> MW-8 L9604073-009 105 109 <br /> Method Blank L9604073-MB 109 110 <br /> Method Blank L9604073-MB 88 93 <br /> Matnx Spike L9604055-005MS 111 117 <br /> Duplicate Matrix Spike L9604055-005DMS 118 119 <br />' Matrix Spike L9604059-012MS 85 96 <br /> Duplicate Matrix Spike L9604059-012DMS 88 99 <br /> 1 CAS Acceptance Limits 60-130 60-140 <br /> Approved By Date <br /> SURV120594 <br /> 04073PHC!BI-8020 1 196 PW No <br />' 6925 Canoga Avenue Canoga Pork, CA 91303 ■ (818) 587-5550 Fax (818) 587-5555 <br />