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06 April 2012 <br /> AGE-NC Project No. 07-1587 <br /> Page 6 of 6 <br /> • The vertical extent of hydrocarbon-impacted ground water is defined at all the <br /> boring locations established in January and February 2012 (south, east and north <br /> east). ape {vt, Js hod /Q, v&-14 -e,V,e&l �cllarafray <br /> avf'du �YnvaJr. /cRcvw2 d� �r IF'Ge d[N'1{7 Saved(c cl <br /> 5.0. RECOMMENDATIONS <br /> Based on the conclusions presented in this report, AGE recommends the following: <br /> • Performance of additional ground water monitoring to evaluate the dissolved <br /> hydrocarbon plume concentration trend over the next six months. Given the known <br /> information from the monitoring well network, a northeasterly ground waterdirection <br /> and shallow gradient, along with the dimensions and chemistry of the hydrocarbon <br /> plume, the dissolved plume appears to be undergoing natural attenuation. Further, <br /> the plume appears to be of little threat to potential use of the ground water near the <br /> site. an r ruw �I- <br /> Vut•t� 4t,E ,,,Q ,V�.C� � ) i7� sou Vit` O�cE �cq v0.M� lovfnofKu 6rilt+7 <br /> 6.0. LIMITATIONS <br /> Su5w.,4-�rt�✓r d�¢'r`� pian <br /> Our professional services were performed using that degree of care and skill ordinarily <br /> exercised by environmental consultants practicing in this or similar localities. Findingswere <br /> based upon analytical results provided by an independent laboratory. Evaluation of the <br /> hydrogeologic conditions at the site for the purpose of this investigation was made from a <br /> limited number of available data points (e.g., soil and ground water samples) and <br /> subsurface conditions may vary away from these data points. No other warranty, <br /> expressed or implied, is made as to the professional interpretations, opinions and <br /> recommendations contained in this report. <br /> Advanced GeoEnvironmental,Inc. <br />