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pace. REPORT OF LABORATORY ANALYSIS <br /> THE ASSURANCE OF DUALITY <br /> Mr Kurt Paschl QUALITY CONTROL DATA August 24, 1994 <br /> Page 20 PACE Project Number 440811501 <br /> Client Reference- 94047 IO Southeastern Tracy Cold Storage <br /> VOLATILE ORGANICS, EPA METHOD 8240 GC/MS <br /> Batch 70 32942 <br /> Samples. 70 0371455 <br /> r <br /> METHOD BLANK <br /> ' Method <br /> Parameter Units MDL Blank <br /> Chlorobenzene ug 5— NO -- <br /> Ethylbenzene ug/L 5 NO <br /> Bromoform ug/L 5 NO <br /> Xylene(s) Total ug/L 5 NO <br /> Styrene ug/L 5 NO <br /> 1,1,2,2,-Tetrachloroethane ug/L 5 NO <br /> 1,3-Dichlorobenzene ug/L 5 ND <br /> 1 ,4-Dichlorobenzene ug/L 5 NO <br /> 1,2-Dichlorobenzene ug/L 5 NO <br /> 1,2-Dichloroethane-d4 (Surrog. Recovery % 103 <br /> Toluene-d8 (Surrogate Recovery) % 94 <br /> 4-Bromofluorobenzene (Surrog Recovery) % 95 <br /> SPIKE AND SPIKE DUPLICATE: <br /> 700371465 Spike <br /> RTI-MW03- Spike Oupl <br /> Parameter Units MDL 0894 Spike Recv Recv RPD <br /> �= is iToroethene u9/1- r; ---- -- y <br /> Benzene ug/L 5 ND 20 99% 103% 4% <br /> Trichloroethene (TCE) ug/L 5 NO 20 104% 111% 7% <br /> Toluene ug/L 5 ND 20 95% 100% 5% <br /> Chlorobenzene ug/L 5 NO 20 101% 103% 2% <br /> LABORATORY CONTROL SAMPLE AND CONTROL SAMPLE DUPLICATE: <br /> Reference Dupl <br /> Parameter Units MDL Value Recv Recv RPD <br /> ��Toroethene ug/L r5 _TF— -M —M -79 <br /> Benzene ug/L 5 20 98% 100% 2% <br /> Trichloroethene (TCE) ug/L 5 20 105% 102% 3% <br /> Toluene ug/L 5 20 100% 97% 3% <br /> Chlorobenzene ug/L 5 20 102% 102% 0% <br /> 11 01FCA 9494849 <br /> Novato An Equal Opportandy Employer <br /> Novato C <br /> TEL 415 663 6100 <br /> FAX 415 883 2673 <br />