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1 Sequoia <br />Analytical <br />Gettler Ryan Inc -Dublin <br />6747 Sierra Court Suite J <br />Dublin CA 94568 <br />Project Chevron <br />Project Number Che%ronSS#9-5'�5 <br />Project Manager Scott Polston <br />404 N Wiget Lane <br />Walnut Creek CA 945% <br />(925)988-9600 <br />FAX (925) 988-9673 <br />www sequoialabs corn <br />Reported <br />I 1 -May -00 07 30 <br />Total Purgeable Hydrocarbons (C6 -C12) and BTEX by DHS LUFT - Quality Control <br />Sequoia Analytical - Walnut Creek <br />Reporting Spike Source %R -EC RPD <br />1nal�te Result Limit LJnite level Result %REC Limit, RPD Limit Notes <br />Batch OE09001 - EPA '503013 [PIT] <br />Source W005012-04 <br />Prepared & Analyzed 09 -May -00 <br />Blink (OEI19001-131-K1) <br />178 <br />050 ugll <br />200 <br />Prepared K Analyzed 09-Mdti-00 <br />]'urgz shle H1 droc nhons <br />ND <br />50 <br />U84 <br />Toluene <br />13,nzent <br />ND <br />050 <br />ND <br />95 5 <br />Toluene <br />ND <br />050 <br />Ethllbenzene <br />21 1 <br />Fth,,lbenzene <br />IND <br />050 <br />" <br />70-130 <br />\rlenes(total) <br />ND <br />050 <br />629 <br />050 <br />%unwgate a a a Di luorotoluene <br />31 1 <br />105 <br />70-130 <br />300 104 70430 <br />LCS (OE09001-13SI) <br />Surrogate a a a-Ti7fluororoluene <br />271 <br />Prepared & Analyzed 09 -May -00 <br />Benzene <br />179 <br />050 <br />a&/1 <br />200 89 5 70-130 <br />Toluene <br />190 <br />050 <br />200 95 0 70-130 <br />Eth}lbenzene <br />21 6 <br />0 50 <br />200 108 70-130 <br />\N lenes (low 1) <br />1528 <br />050 <br />600 105 70-130 <br />Surrogate o a a Trif7uorotolucite <br />274 <br />300 913 70430 <br />Matrix Spike (OE09001-MSI) <br />Source <br />W005012-04 <br />Prepared & Analyzed 09 -May -00 <br />Benzene <br />175 <br />050 <br />ugA <br />200 ND 875 70-13U <br />Toluene <br />188 <br />050 <br />200 ND 940 70-130 <br />Eihylbenzene <br />205 <br />050 <br />200 ND 103 70-130 <br />�}lenes (total) <br />614 <br />050 <br />600 ND 102 70-130 <br />Surrogate a a a-Trriluorotoluene <br />270 11300 900 70-130 <br />Matrix Spike Dup (OE09001-MSD1) <br />Source W005012-04 <br />Prepared & Analyzed 09 -May -00 <br />Benzene <br />178 <br />050 ugll <br />200 <br />ND <br />890 <br />70-130 <br />1 70 <br />20 <br />Toluene <br />191 <br />050 <br />200 <br />ND <br />95 5 <br />70-130 <br />1 58 <br />20 <br />Ethllbenzene <br />21 1 <br />050 <br />200 <br />ND <br />106 <br />70-130 <br />2 88 <br />20 <br />%5lene% ttotal) <br />629 <br />050 <br />600 <br />ND <br />105 <br />70-130 <br />225 <br />20 <br />Surrogate a a a-Ti7fluororoluene <br />271 <br />300 <br />903 <br />70-130 <br />1a Anal` tical - Walnut Creek <br />The re stills in this report apply to the sainples anali,_ed in accordance with the than' of <br />custody docuarent This analytical report must be reproduced in its etrtrre0 <br />Page 5 of 7 <br />