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OF lil <br /> 110 2nd Avenue south ilD7 Pacheco CA 94553-5560 <br /> 4 1 McCampbell Analytical, Inc* Telephone 925-798 1620 Fax 925 798-1622 <br /> Website www mccampb0i com E-mail maina@mccampbell corn <br /> Advanced GeoEnviromnental, Inc Client Protect ID Flag City Chevron Date Sampled 03/28/05 <br /> 837 Shaw Road <br /> Date Received 03/29/05 <br /> Client Contact Tun Cuellar Date Extracted 04101105-04105105 <br /> Stockton, CA 95215 <br /> Client P O Date Analyzed 04/01105-04105105 <br /> Oxygenates and BTEX by GC/MS* <br /> Extraction Method SW5030B Analytical Method SW8260B Work Order 0503501 <br /> Lab ID 0503501-025B 0503501-026B 0503501-027B i 0503501-028B <br /> Client ID MW-16 MW-17 ; MW-18 MW-19A <br /> � II Reporting Limit for <br /> =1 <br /> Matnx W W W W DF <br /> DF 2 3 3 i 5 10 S W <br /> Compound Concentration ug/kg pg/L <br /> ten-Amyl methyl ether(TAME) ND<t 0 I ND<1 7 ND<2 5 ND<5 0 NA 05 <br /> Benzene ND<1 0 ND<1 7 ND<2 5 ND<5 0 NA 0 5 <br /> t-Butyl alcohol(TBA) 12 28 110 67 NA 5 0 <br /> Dnsopropyl ether(DIPE) ND<1 0 ND<1 7 ND<2 5 ND<5 0 NA 05 <br /> Ethanol ND<100 ND<170 ND<250 ND<500 NA 50 <br /> 0 Ethylbenzene ND<1 0 ND<I 7 ND<2 5 ND<5 0 NA 05 <br /> Ethyl tert-butyl ether(ETRE) ND<l 0 ND<l 7 ND<2 5 ND<5 0 NA 0 5 <br /> Methanol ND<1000 ND<1700 ND<2500 ND<5000 NA 500 <br /> Methyl-t-butyl ether(MTBE) 47 97 140 240 NA 0 5 <br /> Toluene ND<1 0 ND<l 7 ND<2 5 ND<5 0 NA 05 <br /> Xylenes ND<1 0 ND<1 7 ND<2 5 ND<5 0 NA 05 <br /> Surrogate Recoveries(%) <br /> %SSI lot 104 100 100 <br /> %SS2 102 105 104 103 <br /> %SS3 110 122 121 121 <br /> Comments <br /> *water and vapor samples are reported in pg/L,soil/sludgelsolid samples in mg/kg,product/oil/non-aqueous liquid samples and all TCLP&SPLP <br /> extracts are reported in mglL wipe samples in pg/wipe <br /> ND means not detected above the reporting limit,NIA means analyte not applicable to this analysis <br /> #surrogate diluted out of range or surrogate coelutes with another peak <br /> h)lighter than water immiscible sheen/product is present,i)liquid sample that contains greater than—1 vol %sediment,i)sample diluted due to high <br /> organic content/matrix interference,k)reporting limit near,but not identical to our standard reporting limit due to variable Encore sample weight,m) <br /> ireporting limit raised due to insufficient sample amount,n results are reported on a dry wet ht basis, see attached narrative <br /> DHS Certification.No 1644 Angela Rydelius, Lab Manager <br />