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�I 05 / 11 / 98 MON 14 : 22 FAX 918 384 1889 SECOR— SACRAMENTO I� OOJ <br /> Toaco Marketing Comply 3 <br /> Circle K Srn ee Station 8671, Stockton, CA Mny 11, 1998 <br /> Laboratory Procedures <br /> Soil samples collected during product line and dispenser upgrade activities will be <br /> submitted to the laboratory and analyzed for the presence of total petroleum <br /> hydrocarbons calculated as gasoline (TPH-g), benzene, toluene, ethylbenzene, xylenes <br /> (BTEX compounds), and methyl tertiary butyl ether (MtBE) by EPA Methods 8015 and <br /> 8020. In addition, one selected soil sample collected from beneath the dispensers will be <br /> analyzed for fuel oxygenates by EPA Method 8260. <br /> Reporting and Schedule <br /> SECOR anticipates initiating field activities during May 1998 . After completion of the <br /> field work and laboratory analyses, the data will be evaluated and assembled into a <br /> report. Included in the report will be soil analytical results, chain-of-custody <br /> documentation, a summary of field observations, assessment, and conclusions. This <br /> report will be submitted to the SJCEHD within 6 to 8 weeks of receiving analytical <br /> sample results from the laboratory. <br /> If there are any questions regarding the contents of this addendum to work plan, please <br /> call us at (916) 3644880, <br /> Sincerely, <br /> SECOR International Incorporated <br /> ....= <br /> Rusty E. Benko Z<.{% <br /> Project Enginertr �� ` ,. an <br /> Ct a a <br /> Q BARCLAY <br /> Greg Barclay `f y <br /> Senior Geologist lrt� <br /> RG 6260 <br /> Attachments' Figure 1 - Site Map <br /> Attachment A - Field and Laboratory Procedures <br /> cc: Mr. Ed Ralston, Tosco Marketing Company <br /> Ms. Elizabeth Thayer, RWQCB - Central Valley Region <br /> 7088&0104 1/addendum.doc <br />