Laserfiche WebLink
(e) The current air monitoring for landfill gas emissions field survey is <br /> only conducted for the topslope area and accounts for roughly 20 <br /> percent of the fill area. There is a higher likelihood that emissions <br /> will occur on the sideslope based on the horizontal stratification of <br /> the waste and preferred movement of landfill gas. ERL shall <br /> comply with the Landfill Gas Migration Monitoring Plan <br /> submitted in March 2012 which includes the sideslope and <br /> topslope areas that can be safely traversed at the time of the <br /> monitoring event. <br /> If concentrations exceed 500 ppm explosive gas (calibrated to <br /> methane), corrective actions are required to amend the landfill <br /> cover to mitigate fugitive 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 describes the <br /> sampling frequency, parameters, protocols and reporting frequency for landfill gas, leachate, <br /> leachate piezometers, leachate lysimeters, residential wells, groundwater monitoring wells and <br /> surface water shall be assessed annually to reflect changes in the monitoring systems. The <br /> Plan shall yield adequate information for assessing the effectiveness of the landfill gas control <br /> system in decreasing VOC contaminants in the groundwater. The proposed compliance <br /> boundary within the Plan is not approved because it incorporates City property inside the <br /> compliance boundary. The compliance boundary will be limited to the Landfill Property. The <br /> City will work with the landfill to get the landfill the agreements they need for off-site <br /> monitoring wells. <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) Type and Quantity of Material Disposed. <br /> (d) Remaining permitted capacity <br /> (e) Updated, full-size, contour map which indicates the elevations of <br /> all fill areas <br /> (f) Assessment of the Financial Assurances Plan. <br /> (g) Evaluation of the Water Monitoring System and a proposal for <br /> continued sampling and analysis. <br /> 9 <br />