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t. <br /> 1551 Industrial Road <br /> San Carlos,CA 94070-4111 <br /> Sequoia (650)232-9600 <br /> (D iFAX(650)232-9b12 <br /> Analytical wwwquo �m <br /> Ir <br /> Gettler-Ryan/Geostrategres(l) Project. Tosco(s) sampled 813100-j;--8/4/00 <br /> 6747 Sierra Court,Suite] Project Number' Unocal SS#5886/2701 West March Lane,Stoclibwmved. 88/28/00 <br /> Dublin,CA 94568 Pro jact M Deanna Hardin <br /> ilEr 11 Ili�,I It 11 <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Anal AR2!)2!!d level Result Result Units Recov Lunits % limit % Notes* <br /> Batch: OH14035 Date Prepared- 8/14100 Extraction Method: EPA 3510B <br /> Blank OH14035-BLK1 500 <br /> Diesel Range Hydrocarbons 8115100 ug/l <br /> Surrogate n Pentacosane 100 103 50-150 103 <br /> LCS OH14_ 0_ 35-BSI X140 789 <br /> Diesel Range Hydrocarbons 8115/00 1000 789 ug/l <br /> Surrogate n Pentaaasane 100 108 SO-ISO 108 <br /> Matrix Spike OH14035-MS1 MJH�1 50-150 95.2 <br /> Diesel Range Hydrocarbons 8/15/00 1000 ND 952 ug/1" 50-150 104 <br /> Surrogate n-Pentacosane 100 I <br /> Mat x S ike Dn OH14035-MSDl MJH0405-01 <br /> Ds ge Hydrocarbons 8115/00 1000 ND 977 ug/l 50-150 97 7 50 2.59 <br /> Su ate n-Pentacosane 100 113 50-150 113 <br /> Batch OH15021 Date Pre red 8115/00 Extraction Metbod EPA 3510B <br /> Blank OH15021-BLKl 50.0 <br /> Diesel Range Hydrocarbons 8117/00 ND 119/1 <br /> Surrogate n Pentacosane <br /> If100 103 50-150 103 <br /> LOS OHl_5021-BS1 <br /> Diesel Range Hydrocarbons 8117/00 1000 810 ugll 60-140 81 0 <br /> 94 S SO-150 S <br /> Surrogate n-Pentacaosane <br /> it 100 94 <br /> Matrix SW OH15021-MSI MJH0236-02 50-150 107 <br /> Diesel Range Hydrocarbons 8/17/00 1000 574 1130 ug/i 50-150 111 <br /> Surrogate n-Pentarmane 100 112 " <br /> Matrix Spike Dnp OH15021-MSD/ MJH�Z 50-150 93.6 50 129 <br /> Diesel Range Hydrocarbons 8/17100 1000 574 �� n� 50-150 103 <br /> Surrogate n-Pentaoasane 100 <br /> • *Refer to end of reportfor text of notes and definitions <br /> Sequoia Analytical-San Carlos <br /> Page 28 of 30 <br />