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404 N Wiget Lane <br /> Walnut Geek,CA 94598 <br /> . Sequoia (925)988-9600 <br /> FAX(925)988-%73 <br /> www secluolalabs corn <br /> Analytical <br /> Gettler Ryan,Inc -Dublin Project`Tosco <br /> 6747 Sierra Court Suite J Project Number Tosco# 11194 Reported <br /> Dublin CA,94568 Project Manager Damm L Harding 11-Apr-00 10 38 <br /> Volatile Organic Compounds by EPA Method 8240B- Quality Control <br /> _ Sequoia Analytical -Walnut Creek <br /> Reportmg Spike Source %REC RPD <br /> Analyte Result Lieut Units Level Result a/aREC Limits RPD Lmut Notes <br /> Batch OC23010-EPA 5030B [PIT] <br /> Blank(OC23010-BIM) Prepared&Analyzed 23-Mar-00 <br /> Bromodwhloroemethane ND 20 ug/l <br /> 2,2,5,5-Tedamethyhetrahydrofivan ND 20 " <br /> cn-1,3-Drchloropropene ND 20 " <br /> 4-Methyl-2-pontanone ND 10 " <br /> Tok3em ND 20 " <br /> trans-l,3-Dichloropropene ND so " <br /> 1,1,2-Tnchlowathwe ND 20 " <br /> Tatrwhloroethene _ ND 20 <br /> 2-Hesanane ND 10 " <br /> Dibromochloromelhane ND 20 " <br /> Chlorobenzerne - ND 20' <br /> F.thylbenzcne ND 20 • <br /> Total Xylenes ND 20 " <br /> Styrene ND 20 " <br /> Bromofosm ND 20 " <br /> 1,1,2,2-TdacWamc n=--__ <br /> 1,3-Dichlorobenzene ND 20 " <br />---=1,4-lhahlorobenzene - _ r -- — _ND�20 <br /> 1,2-Dichlorobenzene ND 70 " <br /> Surrogate Ddbromofluoromethane 52.0 SOO-_— <br /> Surrogate I 1-Dichlonoethene-d4 530 500 106 50-150 <br /> Surrogate Toluene-d8 490 500 9&0 50-150 <br /> Surrogate 4-Bromofluorobaaene 510 500 101 50-150 <br /> LCs(OC23010-BS1) Prepared&Analyzed 22-Mar-00 <br /> 1,1-Dichloroethene 485 20 ugll 500 970 65-135 <br /> Methyl tert-butyl ether 443 20 500 896 _ 70-130 <br /> Benzene 513 20 500 103 70-130 z <br /> Tnchloroedme 521 20 500 104 70.130 <br /> Tollum 515 20 500 103 70-130 <br /> Chlorobenzene 52.5 20 500 105 70-130 <br /> Surrogate Dibromofluorometharee 4g0 500 960 so-ISO <br /> Surrogate 1,1-Dichioraoethane-d4 480 500 960 50-150 <br /> Surrogate Toluene-d8 500 SO 0 100 50-150 <br /> Surrogate 4-BronkyWoroberaene Soo 500 100 50-150 <br /> Sequoia Analytical-Walnut Creek The results in dlas report apply to the samples analyred in accordance with the chat <br /> custody document.Tl6ds analytical report must be reproduced in its seed <br /> Page 15 of 21 <br />