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r <br /> I <br /> Pump-and-Treat Assumptions <br /> "Cut-off"pump-and-treat (hydraulic containment in addition to full treatment) <br /> I 00-foot wide plume In fairly porous aquifer(minimizes cost of drilling due to maximum cone of <br /> depression/radius of influence). <br /> ► Soil vapor extraction not required. <br /> ► Limited regulatory oversight, and limited reporting requirements. <br /> ► Secure site, no unusual expenses. <br /> No special monitoring or other costs beyond testing for water discharge. Reinjection not required. <br /> ► No construction permits required. <br /> 3 wells can cover entire plume width - (-25-foot radius of influence,therefore each well can effectively <br /> handle about 40-foot width). <br /> Installation Costs (3 Wells) <br /> First Year Subsequent <br /> Years <br /> Number of wells 3 0 <br /> Wells $10,000 0 <br /> Pump and Installation 15,000 0 <br /> E=quipment 15,000 0 <br /> Remediation System 6,000 0 <br /> NPDES Reports 10,000 0 <br /> Site Safety Planning 3,000 0 <br /> Consufting 10,000 0 <br /> Total $69,000 $D <br /> C--5 <br />