Laserfiche WebLink
I <br /> Ile <br />' SECTION THREE <br /> WORK SCOPE AND APPROACH <br /> 1 <br /> The proposed scope of work for this phase includes expanding <br /> groundwater monitoring and implementing remediation of excavated soil <br /> The combined objectives of this phase are <br /> ■ Remove or isolate hydrocarbon impacted soil so that further <br /> potential influences to groundwater are eliminated <br /> ■ Carefully evaluate groundwater conditions in order to assess the <br /> need for groundwater remediation <br /> rThe following paragraphs describe the steps by which these objectives can <br /> be accomplished The orderly flow of this work can be traced by <br /> following the critical path schedule described and shown in Section 4, <br /> iFigure 4-1 <br /> 3 1 Monitoring Well Closure <br /> Presents three monitoring wells exist on the site and are identified on <br /> Y� g <br /> Drawing 3-1 On the basis of recent investigations, (appears that <br />' groundwater in the area may exist under confined or semi-confined <br /> conditions under a relatively thin clayey layer The existing monitoring <br /> wells may penetrate that layer, and as a result, not represent actual <br />' groundwater conditions In addition, these wells could provide a conduit <br /> for downward migration of hydrocarbons To more accurately and safely <br /> monitor groundwater conditions, the existing monitoring wells should be <br /> abandoned and replaced To assure proper well closure, the following <br /> steps are proposed prior to additional soil excavation <br /> - Back drilling of the wells, <br /> - Removal of existing well casings, <br /> 3-1 <br /> COMPANY CONFIDENTIAL TRADE SE.CREr AND PROPRIETARY INFORMATION OF THE MARK GROUP Ins r <br />