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1, 12 October 1999 <br /> AGE-NC Project No 98-0497 <br /> Page 7 of 7 <br /> ' caused by a diesel release, a minor portion, if any, may have been the result of a gasoline <br /> release <br /> ' • The horizontal and vertical extent of petroleum hydrocarbon-impacted soil is not known in <br /> any direction <br /> • Ground water at the site is likely to have been impacted by petroleum hydrocarbons <br /> ' 7.0. RECOMMENDATIONS <br /> Based upon data collected from the site, AGE recommends <br /> ' • Additional investigation to determine the lateral and vertical cal extent of hydrocarbon-impacted <br /> soil and ground water at the site Further assessment is warranted north, south east and west <br /> ' from the known petroleum hydrocarbon-impacted area <br /> • Installation of ground water monitoring wells to provide repeatable ground water sampling <br /> locations, determine site-specific ground water flow direction and gradient, and to document <br /> petroleum hydrocarbon concentration trends <br /> 8.0. LIMITATIONS <br />' Our professional services were performed using that degree of care and skill ordinarilyexercised b <br /> Y <br /> environmental consultants practicing in this or similar localities The findings were based mainly <br />' upon analytical results provided by an independent laboratory Evaluations of the geologic/ <br /> hydrogeologic conditions at the site for the purpose of this investigation are made from a limited <br /> number of available data points (i a soil samples) and subsurface conditions may vary away from <br />' these data points No other warranty, expressed or implied, is made as to the professional <br /> recommendations contained in this report <br /> • <br /> Advanced GeoEnvironrnental.Inc <br /> 1 <br />