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MAY 17 '00 08 48AM ENSR SACRAMENTO P 11114 <br /> ' J�a lxoxa 819 StrlkerAvenue,Sulte 6 <br /> 1 Sacramento,CA 95834 <br /> (916)921-9600 <br /> Analytical FAX(916)921-0100 <br /> www sequowlabs com <br /> ENSR Projcct Sao Joaquin Catholic Cemete <br /> 10324 Placer Ln,Ste 200 ry Sampled 4113100 <br /> Project Number Job#8728-001000 Received 4/13100 <br /> Sacramento,CA 95827 Prosect MEWer Mark Naugle or<ed 5/2/00 <br /> ' Total Purgeable Hydrocarbons(C6-C12)and l3TEX in AIr by DHS LUFT/Quahty Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> FAnalyce Analyzed Level Result Result Units Recov Limits % Limit % Notcs* <br /> Batch ,0040141 Date Pre ared- 4/14/00 Extraction Method EPA 5030B Me0 <br /> !lank 004014I-BLKI <br /> Purgeable Hydrocarbons 4/14/00 ND mg/ml Air 10.0 <br /> Benzene ]STA <br /> Toluene „ 0.0500 <br /> ND 0 0500 <br /> Ethylbenzene NA F100500 <br /> genes(total) _ ND 0.0500 <br /> Surrogate a,ga-Tr>�uorotoluene 2 00 227 -- 600-140 0 113 <br /> LCS 0040141-R51 <br /> 13cnzene 4/14/00 200 2 10 mg/ml Air 700-130 105 <br /> ' "Toluene ., 2 00 207 ^ 700-130 103 <br /> Ethylbenzene " 200 216 11 700-130 108 <br /> Xylenes(total) _ _ 600 638 _ 70 0.1.30 106 <br /> Surrogate 44a-Trrfluorotoluene �'% �- 200 216 IF 600-140 108 <br /> bu 0040141-BSDI <br /> enzene 4/14/00 200 212 mg/m'Air 700-130 106 250 0 948 <br /> Toluene „ 200 208 700-130 104 250 0 966 <br /> Ethylbenzene 200 210 700-130 105 250 282 <br /> X let►es(total) <br /> 600 628 70 0-130 103 250 0948 _ <br /> Surrogate a,a,a-Trtfluororoluene <br /> 200 20711 600-140 103 <br /> uoia Analytical-Sacramcrito 'Refer to end of report for Text of noter and definitconx <br /> Page 4 of 6 <br /> r <br />