Laserfiche WebLink
1 ' <br />' 13 January 2006 <br /> AGE-NC Project No 99-0592 <br />' Page 3 of 4 <br />' 3 1 GROUND WATER GRADIENT AND FLOW DIRECTION <br /> On 16 March 2005, depth to ground water was measured between 63 58 feet and 64 20 feet below <br />' the top of the well casings, ground water elevations at the site ranged from 37 14 feet below mean <br /> sea level (MSL) in MW-3 to 37 55 feet below MSL In well MW-4 The ground water flow was <br /> directed toward the northeast with a hydraulic gradient calculated at approximately 0 003 foot/foot <br />' (ft/ft) Depth to water and ground water elevations are summarized in Table 1 Figures 3 illustrates <br /> the contoured ground water elevations <br />' 32 ANALYTICAL RESULTS OF GROUND WATER SAMPLES <br />' No analytes of concern were detected above laboratory reporting limits In the samples collected for <br /> the first quarter monitoring event <br />' Analytical results for the ground water samples from the March 2005 monitoring event are <br /> summarized in Tables 2 and 3 The laboratory report(CTEL Project No CT214-0503167), quality <br /> assurance/quality control (QA/QC) and chain of custody are included In Appendix B Documents <br />' M confirming the upload of laboratory electronic deliverable format (EDF) files and depth to water <br /> measurements to GeoTracker are Included In Appendix C <br />' 4.0. SUMMARY AND CONCLUSIONS <br />' Based on the findings from this investigation, AGE concludes <br />' Ground water at the site for the March 2005 monitoring event was inferred to be flowing <br /> toward the northeast at an average gradient of 0 003 ft/ft The ground water flow direction <br /> Is consistent with previous monitoring events <br />' The average ground water elevation at the site Increased approximately 5 43 feet between the <br /> November 2004 and March 2005 monitoring events <br />' Petroleum hydrocarbon-Impacted ground water appears to be limited to the area near <br /> monitoring well MW-I None of the target analytes were detected In first quarter 2005 <br /> ground water samples collected from MW-2, MW-3, MW-4 and DW-1 <br /> 1 <br />' 5.0. RECOMMENDATIONS <br /> Based on the results of this Investigation,AGE submitted Closure Summary Report,dated 30 August <br />' Advanced GeoEnvironmental,Inc <br /> 1 <br />