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protocols and reporting frequency for landfill gas, leachate, leachate piezometers, . leachate lysimeter, residential wells, groundwater monitoring wells and surface water shall be updated annually to reflect changes in the monitoring systems. The monitoring plan shall yield adequate information for assessing the effectiveness of the landfill gas control system in decreasing VOC contaminants in the groundwater. The annual updates shall be approved by the City. (06) Annual Gas Vent System Assessment. Annually assess the effectiveness of active landfill gas venting operations based on the results of groundwater and landfill gas monitoring. Incorporate the evaluation in the MPCA Annual Report for the landfill. (07) VOC Remediation Feasibility Study. In accordance with MPCA Permit, Part III.C., Corrective Action, the Landfill will be allowed a three-year timeframe in which to demonstrate the effectiveness of landfill gas extraction system in reducing VOC contaminants in the groundwater. Sufficient water quality data, as determined by City Staff, shall be gathered to determine significant trends. If, as of March 1, 1999 2001, groundwater quality standards are exceeded at the facility's compliance boundary and the concentration of VOCs do not show a decreasing trend, the Landfill shall complete a Focused Feasibility Study. The Focused Feasibility Study shall be submitted to City staff by June 1, 1999 2001. ID (08) VOC Remedial Action. If necessary, the selected remedial measure for VOC contaminants identified by the Feasibility Study must be constructed and operational by March 1, 2001 2003, unless good cause can be shown for a delay. (09) Heavy Metal Contaminant Monitoring and Assessment. Heavy metal contaminants for surface water and groundwater must be addressed in addition to VOC contaminants. Based on the need for additional monitoring to confirm exceedances and identify trends, the Landfill shall continue monitoring and prepare evaluation reports which shall be submitted with the MPCA Annual Reports. (10) Heavy Metal Contamination Feasibility Study. If heavy metal concentrations in groundwater and surface water exceed regulatory standards, the Landfill will be required to conduct a Feasibility Study and submit it to City staff on schedule determined by City staff. (11) Construction Quality Assurance Reports. A Construction Quality Assurance (CQA) Report shall be submitted to the City prior to the placement of waste on newly constructed lined areas. A CQA report shall also be submitted for Landfill areas which receive final cover. The report shall demonstrate that • the work is completed to the plan specifications. The Report shall be certified by