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30 April 2005 <br /> AGE-NC Project No 00-0764 <br /> Page 3 of 4 <br /> Ground water flow direction of first encountered ground water, in the area of the former USTs,was <br /> inferred to be toward the east at a gradient of approximately 0 005 foot per foot(ft/ft), as depicted <br /> on Figure 3 <br /> r <br /> 32 LABORATORY RESULTS OF GROUND WATER SAMPLES <br /> No constituents of concern were detected at or above laboratory reporting limits in any of the <br /> analyzed ground water samples <br /> Laboratory results of the analyzed samples are summarized in Table 2 The laboratory report(CTEL <br /> Project No CT214-05030005),quality assurance and quality control(QA/QC)report,and chain of <br /> ' custody forms are included in Appendix C Documents confirming the upload of laboratory <br /> electronic deliverable format (EDF) files and depth to water measurements to GeoTracker are <br /> included in Appendix D <br /> 4.0. SUMMARY AND CONCLUSIONS <br /> Based upon the results of this quarterly monitoring event, AGE concludes <br /> ' • Ground water flow direction of first encountered ground water was inferred to be towards <br /> the east from the former UST location, at a gradient of approximately 0 005 ft/ft <br /> • No constituents of concern were detected at or above laboratory reporting limits in any of the <br /> analyzed ground water samples <br /> ' • At the present time, the vertical extent of the dissolved hydrocarbons has been defined by <br /> boring B 1 and well MW-5 The lateral extent ofthe dissolved hydrocarbons has been defined <br /> by the shallow wells <br /> r <br /> 5.0. RECOMMENDATIONS <br /> Based on the results of this investigation, AGE recommends <br /> • Continued quarterly ground water monitoring, the next monrtonng event is scheduled for <br /> May 2005 <br /> ' • A review of one year's ground water data should be conducted to determine the potential for <br /> site closure <br /> ' Advanced GeoEnnronmental,Inc <br />