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E <br /> TL 489-0589-02 <br /> Page 9 <br /> F <br /> Organic Analysis <br /> o Method blanks will b <br /> e run to insure that ,the glassware <br /> and reagents will be free of interference from chemicals <br /> that would invalidate analyses,- <br /> . 0 <br /> nalyses;. 0 Standards will be prepared using ';`the highest purity <br /> + reference material available; <br /> Io Duplicates of ' the soil will be analyzed to monitor <br /> precision of the method; and <br /> o. Duplicates of the soil will be fortified to validate the <br /> accuracy of the method. <br /> s <br /> Twining Laboratories, Inc. maintains a service contract on <br /> all major instrumentation; gas chromatographs, atomic absorption, <br /> L11 <br /> chromatography and total organic carbon analyzers., All instruments' <br /> Lhave been and will .be serviced on a regular basis to ensure their <br /> accurate calibration. <br /> 4. 4 Remedial Investigation Report: A' technical report will <br /> t, be prepared summarizing the results of the remedial investigation. <br /> The horizontal and.. vertical extent of migration of key petroleum <br /> product constituents in the soil near`,ithe former storage tank will <br /> be identified in the report. The results :of the laboratory <br /> analyses will be evaluatedfor the purposes of developing a <br /> remedial action plan, as may be appropriate, toabate environmental <br /> effects of the former underground tank. in addition, the boring <br /> logs and the laboratory test results will be contained' in the <br /> report. This report will be presented to .the 'Riley/Pearlman <br /> x Fresno Modesto Visalia Bakersfield <br /> 4 <br />