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1 Lancaster Laboratories <br /> Where quality is a science. <br /> Page 1 of 2 <br /> Lancaster Laboratories Sample No. WW 3930156 <br /> Collected:10/27/2002 14:15 by BJ Account Number: 10869 <br /> Submitted: 10/30/2002 09:10 ChevronTexaco <br /> Reported: 11/12/2002 at 15:24 6001 Bollinger Canyon Rd L4310 <br /> Discard: 12/13/2002 San Ramon CA 94583 <br /> MW-9-W-021027 Grab Water <br /> Facility# 90557 SIRC <br />' 139 Center St. Stockton T0607700391 MW-9 <br /> W9CET <br /> As Received <br /> CAS, As Received Method Dilution <br /> No. Analysis Name CAS Number Result Detection Units Factor <br /> Limit <br /> 01728 TPH-GRO - Waters n.a. 100,000. 1,300. ug/l 25 <br /> The reported concentration of TPH-GRO does not include MTBE or other <br /> gasoline constituents eluting prior to the C6 (n-hexane) TPH-GRO range <br /> start time- <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 /> 05553 TPH - DRO CA LUFT (Waters) n.a. 35,000- 4,800. ug/l 200 <br /> According to the California LUFT Protocol, the quantitation for Diesel <br /> Range Organics was performed by peak area comparison of the sample pattern <br /> . to that of our #2 fuel oil reference standard (between C10 and C28 normal <br /> hydrocarbons) . <br /> Site-specific MS/MSD samples were not submitted for the project. A LCS/LCSD <br /> was performed to demonstrate precision and accuracy at a batch level. <br /> Accurate surrogate recoveries could not be determined due to the dilution <br /> required for analysis of the sample- <br /> 01412 Methanol and Ethanol <br /> 01414 Methanol (by Direct Injection) 67-56-1 N.D. 200. ug/1 1 <br /> 02500 TPH Fuels by GC (Waters) <br /> 02501 Total TPH n.a. 7,800. 400. ug/1 1 <br /> 02508 TPH Motor Oil C16-C36 n.a. 7,600. 400. ug/1 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. <br /> Due to a coeluting peak near its retention time, accurate chlorobenzene <br /> surrogate recovery could not be determined. <br /> ' Site-specific MS/MSD samples were not submitted for the project. A LCS/LCSD <br /> was performed to demonstrate precision and accuracy at a batch level- <br /> 01594 BTEX + Oxygenates by 82608 <br /> 01587 Ethanol 64-17-5 N.D- 500- ug/l 10 <br /> 02010 Methyl t-butyl ether 1634-04-4 N.D. 5- ug/l 10 <br /> ' 02011 di-Isopropyl ether 108-20-3 N.D. 5. ug/l 10 <br /> 02013 Ethyl t-butyl ether 637-92-3 N.D- 5. ug/l 10 <br /> 0 02014 t-Amyl methyl ether 994-05-8 N.D. 5. ug/l 10 <br /> 02015 t-Butyl alcohol 75-65-0 110- 50. ug/l 10 <br /> ' 05401 Benzene 71-43-2 3,900. 50. ug/l 100 <br /> Lancaster Laboratories,Inc. <br /> ' M E M B E R2425 New Holland Pike <br /> PO Box 12425 <br /> --- <br /> Lancaster,PA 17605-2425 <br /> 717.656-2300 Fax:717.656-2681 2216 Rev,9111100 <br />