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*Lancaster <br /> Laboratories Analysis Report - <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605-2425•717-656-2300 Fax:717-656-2681•www.lancastertabs.com <br /> Page 1 of 2 <br /> Sample Description: MW-6-W-111014 Grab Water LLI Sample # WW 6441905 <br /> +Facility# 309075 Job# 385849 GRD LLI Group # 1271978 <br /> 3978 S Highway 99-Stockton T0607799504 MW-6 Account # 11928 <br /> Project Name: 309075 <br /> Collected: 10/14/2011 10:45 by AW Chevron <br /> 6001 Bollinger Canyon Rd L4310 <br /> Submitted: 10/19/2011 08:20 San Ramon CA 94583 <br /> Reported: 11/28/2011 14:17 <br /> 99506 <br /> As Received 1 <br /> CAT As Received Method Dilution 11 <br /> No. Analysis Name CAS Number ResultFactor <br /> Detection Limit <br /> �CIMS Volatiles SW-846 8260E ug/l ug/l <br /> 10943 t-Amyl methyl-ether 994-05-8 N.D. 0.5 1 1 <br /> 10943 Benzene 71-43-2 N.D. 0.5 1 _JI <br /> 10943 t-Butyl alcohol 75-65-0 N.D. 2 1 <br /> 10943 1,2-Dibromoethane 106-93-4 N.D. 0.5 1 <br /> 10943 1,2-Dichloroethane 107-06-2 N.D. 0.5 1 <br /> 10943 Ethanol 64-17-5 N.D. 50 1 <br /> 10943 Ethyl t-butyl ether 637-92-3 N.D. 0.5 1 <br /> 10943 Ethylbenzene 100-41-4 N.D. 0.5 1 <br /> 10943 di-Isopropyl ether 108-20-3 N.D. 0.5 1 <br /> 10943 Methyl Tertiary Butyl Ether 1634-04-4 N.D. 0.5 1 1 <br /> 10943 Toluene 108-88-3 _ N.D. - 0.5 1 J <br /> 10943 Xylene (Total) 1330-20-7 N.D. 0.5 1 <br /> JGC Volatiles SW-846 8015B ug/l ug/l <br /> 01728 TPH-GRO N CA water C6-C12 n.a. N.D. 50 1 1 <br /> JGC Miscellaneous SW-846 8015B ug/l ug/l J <br /> 06624 Methanol 67-56-1 N.D. 200 1 <br /> ,/GC Petroleum SW-846 8015B ug/l ug/l 1 <br /> Hydrocarbons J <br /> • <br /> 06609 TPH-DRO CA C10-C28 n.a. 120 50 1 <br /> 02216 TPH-DRO water C10-C28 w/Si Gel n.a. N.D. 50 1 � <br /> The recovery for a target analyte(s) in the Laboratory Control <br /> Spike(s) is outside the QC acceptance limits as noted on the QC <br /> Summary, as well as the LCS surrogate. The following corrective action was <br /> taken: <br /> The sample: was re-extracted outside of-the method required <br /> holding time, and LCS/LCSD recoveries are within the QC <br /> acceptance: limits. The hold time had expired prior to the second <br /> extraction so all results are reported from the original extract. <br /> Similar results were obtained in both extracts. <br /> The reverse surrogate, capric acid, was present at It. <br /> GC Petroleum SW-846 8015E modified u9/1 ug/l <br /> Hydrocarbons <br /> 10006 Motor Oil C16-C36 is/Si Gel n.a. /IN.D. 40 1 <br /> 02500 Total TPH n.a. }/1,300 40 1 <br /> 02500 TPH Motor Oil C16-C36 n.a. /'1,300 40 1 <br /> 10006 Total TPH w/Si Gel n.a. /N.D. 40 1 <br /> TPH quantitation is based on peak area comparison of the sample pattern to <br /> that of a hydrocarbon component mix calibration in a range that includes <br /> C8 (n-octane) through C40 (n-tetracontane) normal hydrocarbons. 1 <br /> The reverse surrogate, capric acid, was present at <1%. J <br /> The surrogate,recoveries in the sample, method blank, LCS and LCSD is outside —� <br /> the QC acceptance limits as noted on the QC Summary. The following corrective <br /> action was taken: The sample was re-analyzed and the surrogate recoveries in <br /> the sample, LCS and LCSD are outside the QC acceptance limits. The spike <br />