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Sequoia Walnut <br /> N Lane <br /> t Greek,,CA CA 94598 <br /> (925)988-9600 <br /> ;ttler <br /> Analytical fA?C{925)988 9673 <br /> Rydn,Inc -Dublin Project Tosco <br /> 6747 Sierra Court Sulte J Project Number To-.LO k 6981 Ri.portc.d <br /> Dublin CA,94568 ProjetI Mendger Steve Carter 09-Mar-00 10 33 <br /> Total Purgeable Hydrocarbons (C6-C12) and BTEX in Air by DHS LUFT - Quality Control <br /> Sequoia Analytical - Walnut Creek <br /> Reportnlg Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limit,, IUD I unit Notes <br /> B,ttch OB28006-EPA 5030B [P/Tl <br /> Blank (OB28006-BLKI) Prepared&Analyzed 26-FLb-Ota ----` -_�—_ <br /> Purgeable Hydrocarbons ND 2 0 mg/m' -kir <br /> Ben7ene ND 0 010 <br /> 1 olueuN ND U 010 <br /> LihVlbenzene ND 0 010 <br /> %}lanes(total) ND 0 010 <br /> 5utnogate a a a-Trtuonoiohiene 574 600 957 70-130 <br /> Blank(OB28006-BLK3) Prepared&Analyzed 02-Mar-00 <br /> Purgelble Hydrocarbons NID 20 mg/m Air <br /> Benzene ND 0 010 <br /> Toluene \113 0 010 <br /> Elhvlbenzen, ISD 0 010 <br /> 0-1(total) NU 0010 --- <br /> Sxrragate a a a Tr�fhuotatolueue 70 — — 600 ----_— 95 0 70-130 <br /> Blank(OB28006-BLK4) Pieparc.d 8r.Analyzed 03-Mac-00 <br /> Purgeable Htidrocarbons ND 2 0 m&/ml Air <br /> Benzene ND 0 010 " <br /> Toluene ISTD 0 010 <br /> Ltlivlbenzene ND 0 010 <br /> Xl lenes(total) ND 0 014 <br /> 5urwgote a a a-Trtfluototofuerne 568 600 94 7 70-130 <br /> LCS(OB28006-BSI) Prepared k Analyzed 26-FLb-00 __– <br /> Benzene l 79f 0 Ocd mglm`Air 200 89 5 70-110 <br /> raluene l 78 0 01(11 200 990 70-330 <br /> rihylhenztnt 1 73 0 010 200 86 5 70-110 <br /> \Mines gtotal) 5 62 0 010 600 93 7 70-130 <br /> Suntogate aaaTrrfluovololucrre 542 600 903 70-130 <br /> Uolca Analti'tlCal- Walnut Creek The results sit this report apple to the samples aualj.ed ni mcordanut mall th( cham of <br /> custody docnuneur This aualytreal ivport must he reproduced at res enitrcty <br /> Page 7 of 9 <br />