Agenda - Council - 04/23/1991 - Laserfiche WebLink

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I CASE REQUEST FOR A CONDITIONAL USE PERMIT TO OPERATE A GROUNDWATER PUMP-OUT AND TREATMENT FACILITY CASE OF WASTE MANAGEMENT OF MINNESOTA, INC. By: Merland Otto Background: On March 11, 1991, Waste Management of Minnesota, Inc. (WMMI) applied for a Cr~nditional Use Permit to develop and operate a groundwater pump-out and treatment .:~.'i.em. The proposal is part of the response action which WMMI is obligated to under the Consent Order entered into with MPCA on May 30, 1985. The basic components of the recovery and treatment system are: I I I I I I I I I I I I I I 12 barrier wells 8 recovery wells an air stripping/carbon filter treatment plant discharge pipe with outfall to Mississippi River augmentation discharge to Sunfish Lake and a wetland west of Sunfish Lake Blvd. The barrier and recovery wells will pump contaminated groundwater from the surficial aquifer at a combined flow rate of 1100 gpm (1,584,000 gpd). The system is designed to remove at least 95% of dissolved volatile organic compounds (VOC's) from the groundwater. WMMI conducted a neighborhood informational meeting with residents of Hunter's Hill on March 6, 1991. The purpose of that meeting was for WMMI to present their proposal and to receive comments from residents. A large majority of residents attending that meeting signed a petition stating their support for the project (this is included in Attachment 3). A public hearing was held on 4/2/91 at which no person expressed concern or was opposed to the proposed action. The Planning and Zoning Commission after discussion of the case recommends approval of the CUP. WMMI has received a NPDES/SDS permit MN#0060259 from the MPCA which outlines the conditions of treatment, monitoring and discharge limits. The permit is valid through midnight, January 31, 1996. Additional permits and licenses will be ..~r~ dred for this proposal including a DNR groundwater appropriation permit and DNR ~.,J~d COE permit approvals for discharge to surface waters. The following items are enclosed for your information: March 11, 1991 permit application NPDES/SDS permit Site map Attendance sheet and petition of neighborhood meeting P&Z findings of fact (4/2/91) P&Z proposed conditional use permit (4/2/91) indemnification agreement