Laserfiche WebLink
QSequoia <br />� Analytical <br />404 N Wiget Lane <br />Walnut Creek CA 94598 <br />(925) 988-9600 <br />FAX (925) 988-9673 <br />www sequolalabs corn <br />4 Gettler Ryan Inc - Dublin Protect Chevron <br />6747 Sierra Court Suite J Project Number Chevron # 9-5775 Reportedorted <br />Dublin CA 94568 Project Manager Scott Polston l9 -Apr -0011 <br />41 <br />Volatile Organic Compounds by EPA Method 8260A - Quality Control <br />Sequoia Analytical - Walnut Creek <br />Reporting Spike Source %REC RPD <br />Analvte Result Limit [hits Level Rebult %REC Limits RPD Limit Notes <br />Batch OD13012 - EPA 5030B [P/TJ <br />Prepared & Analyzed 14 -Apr -00 <br />tent -Butyl alcohol <br />ND <br />LCS (OD 13012-BS2) <br />Mdhyl ted4utyl ether <br />ND <br />Prepared & Analyzed 14 -Apr -00 <br />ktethyl tert-butyl ether <br />564 <br />20 ugrl <br />500 <br />113 70-130 <br />Surrogate Dibromofluoromethane <br />530 <br />ND <br />500 <br />106 50-150 <br />Surrogate 1 2-Dichloroethane d4 <br />470 <br />Surrogate 1 2-Dtchloroelhane-d4 <br />500 <br />940 50-150 <br />LCS (OD13012-BS3) <br />Prepared & Analyzed <br />19 -Apr -00 <br />Methyl tert-butyl ether <br />55 1 <br />20 uyl <br />500 <br />110 70-130 <br />Surrogate Dibromofluoromethane <br />510 <br />500 <br />102 50-150 <br />Surrogate 12 Dichloroethane-d4 <br />540 <br />500 <br />108 50-150 <br />Matrix Spike (OD13012-MSI) <br />Source W004227-01 <br />Prepared & Analyzed <br />12 -Apr -00 <br />Methyl tert-butyl ether <br />494 <br />20 ug/I <br />500 ND <br />968 60-150 <br />Surrogate Dibromofluoromethane <br />520 <br />500 <br />104 50-150 <br />Surrogate 12 Dichloroethane-0 <br />540 <br />500 <br />108 50-150 <br />Matrix Spike Dap (OD13012-MSD1) <br />Source W004227-01 <br />Prepared & Analyzed <br />12 -Apr -00 <br />Methyl tert-butyl ether <br />540 <br />20 ugll <br />500 ND <br />108 60-150 109 25 <br />Surrogate Dibromofluoromerhalie <br />520 <br />500 <br />104 50-150 <br />Surrogate 12-Dichloroethane-d4 <br />530 <br />500 <br />106 so -ISO <br />Batch OD14016 - EPA 5030B [PIT] <br />Blank (OD14016-BLKI) <br />Prepared & Analyzed 14 -Apr -00 <br />tent -Butyl alcohol <br />ND <br />20 mg/m' Air <br />Mdhyl ted4utyl ether <br />ND <br />050 " <br />Di -isopropyl ether <br />ND <br />050 " <br />Ethyl tert-butyl ether <br />ND <br />050 " <br />tort Amy[ methyl ether <br />ND <br />050 " <br />Surrogate Dibromofluoromethane <br />530 <br />500 106 50-150 <br />Surrogate 1 2-Dtchloroelhane-d4 <br />490 <br />500 980 50-150 <br />Sequoia Analytical - Walnut Creek <br />The results in tits report apply to the samples analyzed in accordance with the chain of <br />custody document This analytical report must be reproducedin its entire* <br />Page 5 of 7 <br />