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CALIFORNIA LABoRAToRy SERVICES Environmental did <br /> Chemistry <br /> ' Analyszs Report BTEA, EPA Method 602 <br /> Purge and Trap, EPA Method 5030 <br /> • Client GEOLOGICAL TECHNICS INC. Protect No <br /> ' 2741 RIVER RD Contact Joe <br /> MODESTO, CA 95351 Phone (209)538-6424 <br /> Project J.M. Equspment 3rd Otr 2001 GW Lab Contact JAMES LIANG <br /> ' Lab ID No T1651-7A <br /> Date Sampled 09/17/2001. Job No 841651 <br /> Date Recesved 09/18/2001 CpC Log No NO NUMBER <br /> Date Extracted N/A Batch No 31695 <br /> ' Date ,Analyzed 09/21/2001 Instrument TD GC007 <br /> Date Reported 09/26/2001 Analyst ID DAVIDC <br /> Client ID No MW-4 Matrix WATER <br /> ' SURROGATE <br /> Surrogate <br /> Results Surr Conc Recovery Lower Spec Upper Spec <br /> ' Analyte CAS No (ug/L) (ug/L,) (percent) (Limit) (Limit) <br /> o-Chlorotoluene 95498 229 400 57 MA 72 132 <br /> MW-4 <br /> Results Rep Limit Dilution <br /> Analyte CAS No (ug/L) (ug/L) (factor) <br /> Benzene 71432 1900 60 200 <br /> Toluene 108883 280 6 0 20 <br /> Ethylbenzene 100414 3700 60 200 <br /> Xylenes, total 1330207 5600 120 200 <br /> MA = Recovery data is outside standard QC limits due to matrix <br /> interference LCS recovery data validates methodology <br /> ' ND = Not detected at or above indicated Reporting Limit <br /> CA DOHS FLAP Accreditation/Registration Number 1233 <br /> 3249 Fitzgerald Road Rancho Cordova, CA 95742 800-638-7301 916-638-7301 Fax 916-638-4.510 <br />