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41 a 5 9 <br /> • (04) Other Related Operations. No other operations or activities, whether or <br /> not related to:the Landfill, shall be permitted or allowed on the Landfill Property <br /> unless this Permit is first amended to specifically allow such operations and to <br /> specify the applicable conditions, except mining activities or other operations <br /> licensed or permitted separately by City. <br /> 3.) Buffer Zone/Screening. A Buffer Zone shall be established within the <br /> perimeter of the Landfill Property around the waste disposal areas of not less <br /> than 200 feet, except on the north side. Within this Buffer Zone, no waste <br /> disposal may occur. The Landfill shall develop an inventory of significant trees <br /> within the buffer zone. The preservation of trees within the buffer zone shall be <br /> included in plans for construction, operation, and closure of the Landfill. Said <br /> plans shall be in compliance with the screening plans dated, May 28, 1999, <br /> which are incorporated into Sherburne County's license for the Landfill. <br /> 4.) Specific Additional Operational Requirements. <br /> (01) Leachate Transmission Pipes. Permittee shall verify to the City every four <br /> (4) years that the existing leachate transmission pipes do not leak. <br /> (02) Backup Leachate Pumps. Permittee shall maintain backup pumps for use <br /> • in the event of pump failure at the wet well and leachate storage tank on-site, or <br /> shall maintain provisions for restoring temporary leachate pumping within a 24- <br /> hour period. <br /> (03) Leachate Holding Tank. Permittee shall ensure that the leachate-holding <br /> tank is pumped out on a regular schedule. It shall be a violation of this Permit <br /> to allow leachate to collect on the liner to a depth exceeding one foot due to the <br /> leachate-holding tank being full. <br /> (04) Gas Venting System. Permittee shall conduct active landfill gas venting in <br /> accordance with approved plans and shall construct additional phases of the <br /> venting system at the time of final cover construction. <br /> (05) Phase IV Water Quality Monitoring Work Plan. The Phase IV Water <br /> Quality Monitoring Work Plan which describes the sampling frequency, <br /> parameters, protocols and reporting frequency for landfill gas, leachate, leachate <br /> piezometers, leachate lysimeter, residential wells, groundwater monitoring wells <br /> and surface water shall be updated annually to reflect changes in the monitoring <br /> systems. The monitoring plan shall yield adequate information for assessing the <br /> effectiveness of the landfill gas control system in decreasing VOC contaminants <br /> in the groundwater. The annual updates shall be approved by the City. <br /> • (06) Annual Gas Vent System Assessment. Annually assess the effectiveness <br /> of active landfill gas venting operations based on the results of groundwater and <br />