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I <br /> 08 March 1999 <br /> • AGE-NC Project No 96-0254 <br /> Page 4 of 4 <br />' 5.0. RECOMMENDATIONS <br /> Based on the results of this investigation, AGE recommends <br /> • A quarterly monitoring event should be scheduled for March 1999 and should be conducted <br /> concurrently with the monitoring event for the 2420 Grant Line Road site <br /> r • Additional soil borings and ground water wells have been requested by the PHS-EHD Soil <br /> contamination has been constrained by data derived from soil samples collected during <br /> installation of wells MW-3, MW-5, MW-6 and soil borings B 1 and B6, as documented in <br /> the PIER dated 18 August 1997 Ground water samples collected from down-gradient, cross- <br /> gradient and up-gradient monitoring wells have not been impacted by hydrocarbons or fuel <br /> additives AGE recommends the installation a minimum of four additional soil borings on <br /> site, and an additional ground water monitoring well north of the site <br /> • A Work plan for the above mentioned scope of work has been approved by the PHS-EHD <br /> AGE anticipates that cost Pre-approval will be granted by the State Water Resources Control <br /> 6.0. LIMITATIONS <br /> IOur professional services were performed using that degree of care and skill ordlnanly exercised by <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 <br /> geologic/hydrogeologic conditions at the site for the purpose of this investigation are made from a <br /> limited number of available data points (i a monitoring well locations, ground water and soil <br /> samples), and subsurface conditions may vary away from these data points No other warranty, <br /> expressed or implied, is made as to the professional recommendations contained in this report <br /> Advanced GeoEnwonmental Inc <br /> I <br /> I <br />