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Lancaster Laboratories <br /> Where quality is a science <br /> Page 4 of 6 <br /> Lancaster Laboratories Sample No WW 3775768 <br /> Collected.02/14/2002 10 18 by BG Account Number: 10906 <br /> Submitted 02/19/2002 09 05 Chevron Products Company <br /> Reported: 03/04/2002 at 16 09 6001 Bollinger Canyon Rd <br /> Discard 04/04/2002 Building L Pb Box 6004 <br /> MW--1-w-020214 Grab Water San Ramon CA 94583-0904 <br /> Facility# 92033 Job# 386847 GRD <br /> 508 Charter way-Stockton T0607700702 MW-1 <br /> CWMW1 <br /> As Received <br /> CAT As Received Method Dilution <br /> No Analyses Name CAS Number Result Detectxon Units Factor <br /> Lxnx t <br /> analysis Therefore, a LCS/LCSD was performed to demonstrate precision and <br /> accuracy at a batch level <br /> The recovery of bes(2-Ethylhexyl)phthalate was below QC limits 1n the LCS <br /> associated with this sample The sample was re-extracted outside of the <br /> method required holding time, and acceptable QC and comparable data were <br /> observed The data reported here is from the initial extraction of the <br /> sample <br /> -— -—Poor-surrogate-recoveries-were-observed-for-the-GC/MS-semivolatile — -- - <br /> compounds The analysis was repeated outside of the required hold time and <br /> poor surrogate recoveries were again observed, indicating a significant <br /> matrix effect The results reported are from the initial extraction of the <br /> sample <br /> 05724 Misc Semivolatiles (water) <br /> 00355 Aniline 62-53-3 N D 5 0 ug/l 1 <br /> 05382 EPA SW846/8260 (water) <br /> 05385 Chloromethane 74-87-3 N D 2 ug/l 1 <br /> 05386 Vinyl Chloride 75-0I-4 N D 1 ug/l 1 <br /> 05387 Bromomethane 74-83-9 N D 2 ug/l 1 <br /> 05388 Chloroethane - 75-00-3 N D 2 ug/1 ; <br /> 05389 Trichlorofluoromethane 75-69-4 N D 2 ug/l 1 <br /> 05390 1,1-Dichloroethene 75-35-4 N D 1 ug/1 1 <br /> 05391 Methylene Chloride 75-09-2 N D 2 ug/l 1 <br /> 05392 trans-1,2-Dichloroethene 156-60-5 N D 1 ug/l 1 <br /> 05393 1,1-Dichloroethane 75-34-3 N D 1 ug/l 1 <br /> 05395 cis-1,2-D.ichloroethene 156-59-2 N D 1 ug/l 1 <br /> 05396 Chloroform 67-66-3 N D 1 ug/l 1 <br /> 05398 1,1,1-Trichloroethane 71-55-6 N D 1 ug/l 1 <br /> 05399 Carbon Tetrachloride 56-23-5 N D 1 ug/1 1 <br /> 05402 1,2-Dichloroethane 107-06-2 N D 2 ug/1 1 0 <br /> 05403 Trichloroethene 79-01-6 N D 1 ug/l 1 <br /> #=LaboratorMy I� t �fi)ec��$������5�1�r� 5 `target detection limit <br /> N D=Nat d Orm the$4sorting Limit <br /> Lancaster PA 17605 2425 <br /> 717-656 2300 Fax 717-656 2681 2216 Rev 9111/00 <br />