EPA and its partners are beginning work on the first-ever national survey on the condition of the Nation's wetlands. Data for this survey will be collected in 2011. The survey will be designed to provide regional and national estimates of the ecological integrity and biological condition of wetlands. The process of designing and conducting the survey is also intended to help build state and tribal capacity to monitor and analyze wetland condition while promoting collaboration across jurisdictional boundaries.
The National Wetland Condition Assessment (NWCA) survey will use a probability-based sample design that will result in statistically-valid estimates of condition for a population of wetlands. Interested states and tribes can participate in the design, planning, and field assessment of the NWCA. A consistent field assessment procedure will be used for the NWCA to ensure that the results can be compared across the country.