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Sequoia <br />Analytical <br />4r <br />r <br />819 Striker Avenue Suite 8 <br />Sacramento CA 95834 <br />(916) 921 9600 <br />FAX (916) 921 0100 <br />www sequotalabs com <br />SECOR lntLrnational - Rancho Cordova Proj-.ct Chevron 9-5775 Lodi CA <br />3017 Kilgore Road Suite 100 Projei,t Number 077 41991 043 Reported <br />Rancho Cordova CA 95670 Project Manager Ronald Chinn 11/28/00 17 58 <br />Total Purgeable Hydrocarbons (C6-Ci2) and BTEX by DHS LUFT - Quality Control <br />Sequoia Analytical - Sacramento <br />Reporting Spike Source */.REC RPD <br />knahte Result Limit Units Le«i Result "'uRLC Limits RPD Limit Notes <br />Batch 0110320 - EPA 5030B (WOH) <br />Blank (0110320-BLKI) — _ _ __— Prepared & Analyced_l 1116100--- <br />Purgeable Hydrocarbons ND 500 ug/l <br />Benzene ND 0 500 <br />Toluene ND 0 500 <br />Ethylbenzene ND 0 500 <br />Xylenes (total) ND 0 500 " <br />Surrogate a a a Triuorololuene 965 100 965 60-140 <br />LCS (0110320-BS1) <br />Benzene --- --- -� <br />Toluene <br />Ethylbenzene <br />*s (total) -- <br />Surrogate a a a Triuorotoluene <br />839 " 100 839 60-140 <br />Matrix Spike (0 1 10320 -MS 1) <br />Source SO11186-03 <br />Prepared & Analyzed <br />W <br />11/16/00 <br />959 <br />0 500 <br />ug/l 100 <br />959 70-130 <br />947 <br />0 500 <br />100 <br />947 70-130 <br />972 <br />0 500 <br />t 0 0 <br />972 70-130 <br />290 <br />0 500 <br />300 <br />967 70-130 <br />839 " 100 839 60-140 <br />Matrix Spike (0 1 10320 -MS 1) <br />Source SO11186-03 <br />Prepared & Analyzed <br />11/16/00 <br />Benzene <br />10 2 0 500 ug/1 <br />100 109 <br />91 1 60-140 <br />Toluene <br />999 0 500 <br />100 ND <br />999 60-140 <br />Ethylbenzene <br />11 5 0 500 <br />100 2 11 <br />93 9 60-140 <br />Xylenes (total) <br />295 0 500 <br />300 0 732 <br />95 9 60-140 <br />Surrogate aa a-Triuorotoluene 917 11100 91 7 60-140 <br />Matrix Spike Dup (01 10320 -MSD 1) <br />Source S011186-03 <br />Prepared & Analyzed <br />I 1116!00 <br />Benzene <br />11 1 0 500 ugll <br />100 109 <br />100 60-140 <br />845 <br />25 <br />Toluene <br />987 0 500 <br />100 ND <br />987 60-140 <br />121 <br />25 <br />Ethylbenzene <br />11 7 0 500 <br />100 2 11 <br />959 60-140 <br />172 <br />25 <br />Xylenes (total) <br />300 0 500 <br />300 0 732 <br />976 60-140 <br />168 <br />25 <br />Surrogate aa a-Triuorotoluene 103 100 103 60-140 <br />ota Analytical - Sacramento The results in this report apply to the samples analyred in accordance with the chain of <br />custody document This analytical report must be reproduced in its entirety <br />Page 6 of 10 <br />