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09 May 2002 <br /> AGE-NC Project No 96-0232 <br /> Page 8 of 8 <br /> be forced out into the surrounding saturated soil and react with the target analytes, producing carbon <br /> dioxide and water <br /> The frequency and duration of ozone injection penods will be be regulated at the ozone generator <br /> control box Initially, operation of the ozone injection system wiI1 be based on the manufacturer's <br /> recommendations Injection rates, frequency and duration may be adjusted to compensate for site <br /> conditions during the pilot test <br /> The ozone sparge feasibility test will be performed for approximately four weeks Grab water <br /> samples will be collected at 1-week intervals for six weeks (four weeks during ozone sparging and <br /> two weeks thereafter) from wells MW-11, MW-14 and MW-15 and submitted to a DHS--certified <br /> laboratory for the following constituents <br /> • TPH-g and TPH-d in accordance with EPA Method 8015 Modified/5030/3550, <br /> • BTEX, methanol, ethanol, 1,2-DCA, EDB, MTBE, TAME, DIPE, ETBE and TBA by EPA <br /> Method 8260 Modified <br /> . Laboratory reports for groundwater analysis, testing methods, laboratory quality assurance/quality <br /> control (QA/QC) reports, and sample chain of custody documentation will be presented in a report <br /> with findings and recommendations <br /> Advanced GeoEnvlronmental,Inc. <br />