5.8. SR 09-09-2002 - Laserfiche WebLink

Home Browse Search

City ~ River TO: FROM: DATE: SUBJECT: MEMORANDUM Mayor and City Council Rebecca Haug, Environment~[.T~chnician September 4, 2002 P17C Groundwater Remediation Project Item 5.8. Proposal - Waste Management (WM) has requested the City of Elk River to consider cost sharing for the remediation project in the P17C area of the landfill. The P17C area is on the west side of the landfill near Rice Lake. A plume has been detected in this area and Geomatrix Consultants, Inc to date has spent approximately $135,000 on investigating the extent of the contamination. Geomatrix Consultants, Inc has estimated the total cost for P 17C groundwater remediation to be $135,000. Steve Rohlf and I met with Dave Lucas, Solid Waste Officer, Sherburne County on August 20, 2002 to discuss the project. The City and County discussed cost sharing $70,000 (1/2 of the cost ofremediation) of the total estimated cost. The City of Elk River would cover the initial $35,000 and Sherbume County the remaining $35,000. WM has incurred $35,000 on the first phase of treatment, so the City's first contribution would be $17,500. Dave Lucas will be requesting approval for the project from the Sherbume County Board of Commissioners on either September 10th or 17th. FINDINGS · This project demonstrates proper use of landfill abatement money by mitigating for local risk. The work being conducted by WM is a voluntary effort to reduce the VOC contaminants inside the landfill site before they migrate to the property boundaries, potentially contaminating Rice Lake. The insitu aerobic treatment (introduction of oxygen to speed up the breakdown process) of contaminants has been used at other sites. If this does not work, there are other methods of treatment. The wells developed for the insitu aerobic treatment can be used for these other treatment methods. · The City's purpose for regulating is to ensure contamination does not leave the site.