Wetlands function as natural sponges that trap and slowly release surface water, rain, snowmelt, groundwater and flood waters. They also provide a habitat for birds and other wildlife, and support healthy fish populations. In fact, 43% of the threatened and endangered species on federal lists rely directly or indirectly on wetlands for their survival. They provide many benefits, and are very important parts of our natural systems because they:

• Provide clean water by filtering out and storing many pollutants, especially phosphorus
• Prevent flood damage by storing water during rain events
• Control erosion by slowing the flow of water
• Provide economic benefits 
• Offer a beautiful landscape and are wonderful places for recreation and family activities

When working near wetlands or planning to build near a wetland, it is important to minimize the impact of development as much as possible. In many cases it is advisable to avoid building on or near a wetland entirely.