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Lancaster Laboratories <br /> „ Where qualityis a science. <br /> Page 2 of 3 <br /> Lancaster Laboratories Sample No. WW 3807011 <br /> Collected:04/16/2002 17:00 by TC Account Number: 10906 <br /> Submitted: 04/18/2002 08:55 Chevron Products Company <br /> Reported: 05/01/2002 at 12:27 6001 Bollinger Canyon Rd <br /> Discard: 06/01/2002 Building L PO Box 6004 <br /> MW--9-W-020416 Grab Water San Ramon CA 94583-0904 <br /> Facility# 90557 Job# 386843 GRD <br /> 139 S CENTER-STOCKTON T0607700391 MW-9 <br /> 557M9 <br /> As Received <br /> CAT As Received Method Dilution <br /> No. Analysis Name CAS Number Result Detection Units Factor <br /> Limit <br /> 00776 Benzene 71-43-2 6,100. 10. ug/l 50 <br /> 00777 Toluene 108-88-3 11,000. 10. ug/l 50 <br /> 00778 Ethylbenzene 100-41-4 2,400. 10. ug/l 50 <br /> 00779 Total Xylenes 1330-20-7 11,000. 30. ug/l 50 <br /> .00780 Methyl tert-Butyl Ether 1634-04--4 N.D. # 100. ug/l 50 <br /> A site-specific MSD sample was not submitted for the project. A LCs/LCSD <br /> was performed to demonstrate precision and accuracy at a batch level. <br /> Due to the presence of an interferent near its retention time, the normal <br /> reporting limit was not attained for MTBE. The <br /> presence or concentration of this compound cannot be determined due to the <br /> presence of this interferent. <br /> 01594 STEX + Oxygenates by 8260E <br /> 01587 Ethanol 64-17-5 N.D. 500. ug/l 10 <br /> 02010 Methyl t-butyl ether 1634-04-4 N.D. # 5.0 ug/l 10 <br /> 02011 di-Isopropyl ether 108-20-3 N.D. # 5.0 ug/l 10 <br /> 02013 Ethyl t-butyl ether 637-92-3 N.D. # 5.0 ug/l 10 <br /> 02014 t-Amyl methyl ether 994-05-B N.D. # 5.0 ug/1 10 <br /> 02015 t-Butyl alcohol 75-65-0 7.60. 100. ug/l 10 <br /> 05402 1,2-Dichloroethane 107-06-2 N.D. # 5.0 ug/l 10 <br /> 05412 1,2-Dibromoethane 106-93-4 N.D. # 5.0 ug/l 10 <br /> The reporting limits for the GC/MS volatile compounds were raised due to <br /> the level of non-target compounds. <br /> State of California Lab Certification No. 2116 <br /> Laboratory Chronicle <br /> CALT Analysis Dilution <br /> Analysis Name Method Trial# Date and Time Analyst Factor <br /> P—Laborato MethodDetec ��i'e+��� bd"farget detection limit <br /> N.D.Not q OAMR unit <br /> Lancaster,PA 17605-2425 <br /> 717-656-2300 Fax-717-656-2681 2216 Rev,9111/00 <br />