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404 N Wiget Lane <br /> Sequoia Walnut Creek,CA 94598 <br /> (925)988-9600 <br /> Analytical FAX(925)988-9673 <br /> T Corporation Protect Sears <br /> 005 Port Chicago Hwy Project Number Sears-Stockton Reported <br /> Concord CA,94520 ProjectManager Dave Poley 24-Nov-99 15 23 <br /> Volatile Organic Compounds by EPA Method 8260A - Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> tnalyte Result Limit Units Level Result %REC Limits RPD Lunt Notes <br /> Batch 9K23015 Prepared 22-Nov-99 Using EPA 5030B[PIT] <br /> lank(9K23015-BLKI) <br /> ,2,4-'1`nc ohl r�rizene ND 0 16 mg/kg <br />$aP <br /> htha/-no ND 050 " <br /> exachlorobuWa ene ND OIO " <br /> ,2,3-1nchlorobervexie ND 010 " <br /> rrogate Drbromofluoromethane 00256 00250 102 50-150 <br /> rrogate 1 2-Dtchloroethane-d4 00260 00250 104 50-150 <br /> Surrogate Toluene-d8 00243 00250 972 50-150 <br /> CPS <br /> rogate 4Bromofluorobenzene 00251 00250 100 50-150 <br /> (9K23015-BSI) <br /> 1,1-Dichloroethene 00259 00010 mg/kg 00250 104 65-135 <br /> e <br /> 00257 00010 00250 103 70-130 <br /> P. loroethene 00260 00010 00250 104 70-130 <br /> Toluene 00261 00010 00250 104 70-130 <br /> hlorobenzene 00256 00010 00250 102 70-130 <br /> arrogate Drbromofluoromethane 00249 00250 996 50-150 <br /> rrogate 1 2Dichloroethane-d4 00245 00250 980 50-150 <br /> rrogaie Toluene-d8 00245 00250 980 50-150 <br /> Surrogate 4-Bromofluoroberrzene 00257 00250 103 50-150 <br /> atrlx Spike(9K23015-MS1) Source W911214-01 <br /> 1-Dichloroethene 00215 00010 mg/kg 00250 ND 860 60-140 <br /> Benzene 00219 00010 00250 ND 876 60-140 <br /> tchloroethene 00211 00010 00250 ND 844 60-140 <br /> luene 00209 00010 00250 ND 83 6 60-140 <br /> Chlorobenzene 00208 00010 00250 ND 832 60-140 <br /> Surrogate Dibromofluoromethame 00255 00250 102 50-150 <br /> Glurrogate 12 Dichloroethane-d4 00259 00250 104 50-150 <br /> fr-roge <br /> atToluene-d800248 00250 992 50-150 <br /> gatc 4-Bromofluoroberaene 00250 00250 100 50-150 <br /> 1a Analytical-Walnut Creek The results to this report apply to the sannples analyzed t n accordance with the clrun of <br /> custody document This analytical report must be reproduced in its entirety <br /> Dimple Sharma,Project Manager Page 35 of 46 <br />