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significant trees within the buffer zone. The preservation of trees within the buffer zone shall be <br />provided for during the construction, operation, and be included in the end use plan to be submitted <br />for approval by December 31, 2011 by the City. <br />4.) Specific Additional C-~erational Requirements. <br />(01) Leachate Transmission Pipes. Leachate transmission pipes shall be designed to ensure that <br />double containment and adequate leak detection exists as approved by the MPCA, County and City. <br />Permittee shall verify to the City every four (4) years that the existing Leachate transmission pipes do <br />not leak. <br />(02) Backup Leachate Pump. Permittee shall maintain backup a pumps for use in the event of <br />pump failure at the Leachate sump, wet well and Leachate storage tank on-site. As an alternative, the <br />pernuttee shall maintain provisions for restoring temporary Leachate pumping within a 24-hour period <br />and adhere to the current "Leachate Management Plan" as approved by MPCA. <br />(03) Leachate Holding Tank. Permittee shall ensure that the Leachate-holding tank is pumped out <br />on a regular schedule. It shall be a violation of this Permit to allow Leachate to collect on the liner to a <br />depth exceeding one foot due to the Leachate-holding tank being full. <br />(04) Leachate Recirculation. Pernzittee shall conduct Leachate Recirculation pursuant to MPCA, <br />County and City regulations. In the event that any operational problems occur from Leachate <br />recirculation, the Permittee shall immediately cease Leachate recirculation and revert to prior method <br />of Leachate recirculation unless and until another remedy for the problem is approved bythe City. <br />(05) Gas Collection System. Permittee shall conduct active landfill gas collection in accordance <br />with approved plans and shall construct additional phases of the control system at the time of finale <br />cover construction. <br />(06) Phase IV Water Quality Monitoring Work Plan. The Phase IV Water Quality Monitoring <br />Work Plan which describes the sampling frequency, parameters, protocols and reporting frequency for <br />landfill gas, Leachate, Leachate piezometers, Leachate lysimeter, residential wells, groundwater <br />monitoring wells and surface water shall be updated annuallyto reflect changes in the monitoring <br />systems. The monitoring plan shall yield adequate information for assessing the effectiveness of the <br />landfill gas control system in decreasing VGC contaminants in the groundwater. <br />(07) Annual Active Gas Control System Assessment. Annually assess the effectiveness of active <br />landfill gas control operations based on the results of groundwater and landfill gas monitoring. <br />Incorporate the evaluation in the MPCA Annual Report for the landfill. <br />(08) Construction Quality Assurance Reports. A Construction Quality Assurance (CQA) Report <br />shall be submitted to the City prior to the placement of waste on newly constructed lined areas. A <br />CQA report shall also be submitted for Landfill areas which receive final cover.. A CQA report shall <br />also be submitted for installation of Leachate recirculation drainfield areas to document position within <br />the cell, suitable base contours and piping elevations The report shall demonstrate that the work is <br />completed to the plan specifications. The Report shall be certified by an engineer registered in the <br />State of Minnesota and shall include but not be limited to: <br />S:\PLANNING MAIN\Case Files\CUP\CU 10-02 ER Landfill\LANDFILL CUP 2010 2 16 10 CC veision.DOC Page 5 <br />