These items would include the piping to get the wastewater to the wetland, the piping from the wetland to final discharge, and any pumps required for this purpose. Fencing is typically utilized around all municipal wastewater treatment systems but is not usually required around the smaller SF wetland beds due to the low risk of public contact and exposure to the wastewater. None of these features is unique to wetland systems, and costs for these items were not available at the sites included in the 1997 EPA survey. The only time fencing might be a unique requirement for a wetland system would be its use to exclude muskrats and nutria. Both of these animals can seriously damage both the wetland vegetation and the berms in the system.
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