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analytical report is attached in Appendix A <br /> The analytical results in parts per billion (ppb) were as follows <br /> Sample Id. All 8260 Compounds (in Uph) <br /> 495-INF-08-23-02 < 05 <br /> 495-GAC1-08-23-02 < 05 <br /> 495-GAC2-05-14-02 Not Analyzed <br /> No compounds were identified in any of the water samples analyzed At <br /> A time did water containing MTBE or 1,2-DCA enter the plumbing system <br /> of the residence on the property <br /> QUARTERLY _OPERATION AND MAINTENANCE, SAMPLING AND <br /> REPORTING <br /> ASE is currently under contract to perforin quarterly operation a n d <br /> maintenance (O&M) activities and collect samples and prepare a report <br /> every 3 months to determine the effectiveness of the treatment system <br /> ASE will continue to visit the site periodically to check the performance of <br /> • the system, backflush the carbon canisters, if necessary, and repair any <br /> problems that arise <br /> ASE will continue to collect influent (pre-treatment) and after carbon <br /> canister (post-treatment) water samples every three months for analysis <br /> of TPH-G, BTEX, the five fuel oxygenates, and lead scavengers by EPA <br /> Method 8260B ASE will prepare and issue a report in the following <br /> month that details the quarter's activities Should it be determined that <br /> hydrocarbons are breaking-through the first carbon canister, ASE will <br /> replace that canister with a new one <br /> A copy of the quarterly report will go to the property owner, our client, <br /> and the appropriate regulatory agencies <br /> Is <br /> -2- <br />