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Analysis • • <br /> Lancaster Laboratories <br /> Where quality is a science. . <br /> Page 1 of 2 <br /> Lancaster Laboratories Sample No. WW 3701045 <br /> Collected: 10/02/2001 19: 10 by TC Account Number- 10906 <br /> Submitted: 10/05/2001 09:30 Chevron Products Company <br /> Reported: 10/23/2001 at 17: 15 6001 Bollinger Canyon Rd <br /> Discard: 11/23/2001 Building L PO Box 6004 <br /> MW-9A Grab Water San Ramon CA 94583-0904 <br /> Facility# 9-0557 Job# 386843 GRD <br /> 139 S Center St. Stockton 70607700391 NA <br /> CMW9A <br /> Aa Received <br /> CAT As Received Method Dilution <br /> No. Analysis Name CAS Number Result Detection Units Factor <br /> Limit <br /> 05553 TPH - DRO CA LUFT (Waters) n.a. 18,000. 1,000. ug/l 50 <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 /> Sufficient sample volume was not available to perform a MS/MSD for this <br /> analysis. Therefore, a LCS/LCSD was performed to demonstrate precision and <br /> accuracy at a batch level. <br /> 01729 TPH-GRO N. California (waters) <br /> 01730 TPH-GRO N. California (waters) n.a. 180,000. 2,500. ug/l 50 <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 /> The vial submitted for volatile analysis did not have a pH < 2 at the time <br /> of analysis. Due to the volatile nature of the analytes, it is not <br /> appropriate for the laboratory to adjust the pH at the time of sample <br /> receipt. <br /> 02740 Custom TPH with Ranges (Water) <br /> 01779 C16-C36 n.a. 3.6 1.0 mg/l 1 <br /> 02741 Total TPH n.a. 3.6 1.0 mg/l 1 <br /> Due to interferences from the sample matrix (high sediment content) , the <br /> reporting limit was increased. <br /> Due to a coeluting peak near its retention time, accurate chlorobenzene <br /> surrogate recovery could not be determined. <br /> 08214 BTEX, MTBE (8021) <br /> 00776 Benzene 71-43-2 16,000. 10. ug/l 50 <br /> 00777 Toluene 108-88-3 41,000. 40. ug/1 200 <br /> 00778 Ethylbenzene 100-41-4 4,400. 10. ug/l 50 <br /> Lancaster Laboratories,Inc. <br /> MEMBER 2425 New Holland Pike <br /> PO Box 12425 <br /> Lancaster,PA 17605-2425 <br /> 717.656-2300 Fax:717-656-2681 2216 Rev.9111100 <br />