How Often Should Topographical Maps Be Prepared for Volume Calculations?
Site-specific conditions should be considered when determining the frequency of topographical map production. The map can be used for determination of remaining capacity; however, it can also be used as a valuable tool to ensure that compaction efforts are producing the density/volume ratios expected and in preparing future filling plans. It may be necessary to produce a topographical map on an annual basis: • For sites that are nearing completion. • For sites that require available space data for planning. • As a tool to assure that compaction techniques are obtaining the desired results. A rural landfill that receives minimal waste volumes may require a new topographical map every five years. A larger, more active landfill may need a topographical map prepared annually or partial updates more frequently. This map can then be used to update the information in the report of disposal site information and the solid waste facility permit. One advantage of using periodic topographic survey
