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previous 24-hour periods.All gas probe monitoring data must be <br />fullyevaluated in the annual operating report. <br />(c)Ifambient concentrations of landfill gas identified during the <br />NSPS surface scans exceed 500 ppm explosive gas (calibrated to <br />methane), corrective actions are required to amend the landfill <br />cover to mitigatefugitive emissions. This requirement is important <br />in identifying fugitive gas emissions/odors and ensuring that site <br />conditions are corrected to mitigate their effects. <br />(06)Sampling and Analysis Plan.The Sampling and Analysis Plan,which <br />describes thesampling frequency, parameters, protocols and reporting frequency <br />for landfill gas, leachate, leachate piezometers, leachate lysimeters, residential <br />wellsandgroundwater monitoring wells shall be assessedannually to reflect <br />changes in the monitoring systems. The Plan shall yield adequate information for <br />assessing the effectiveness of the landfill gas control system in decreasing VOC <br />contaminants in the groundwater. The proposed compliance boundary within the <br />Plan is not approved because it incorporates City property inside the compliance <br />boundary. The compliance boundary will be limited to the Landfill Property. <br />Corrective actions (potentially associated with contaminant migration) on City <br />property,which potentially limit the use of City property,are not allowed. <br />(07)Annual Operating Report.An Annual Operating Report shall be submitted <br />with the following supplemental items. <br />(a)Annual Waste Disposal Volume. <br />(b)Schedule of construction activities for the forthcoming year. <br />(c)TypeandQuantity of Material Disposed. <br />(d)Remaining permitted capacity <br />(e)Updated, high resolution, contour map which indicates the <br />elevations of all fill areas <br />(f)Assessment of the Financial Assurance Plan. <br />(g)Evaluation of the Water Monitoring System and a proposal for <br />continued sampling and analysis. <br />(h)Detailed evaluation of all water quality results by means of tables <br />and graphs. <br />(i)A groundwater contour map based on the previous years’ <br />groundwater level data. <br />9 <br /> <br />