Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the United States and its Territories. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). The National Wetlands Inventory - Version 2, Surface Waters and Wetlands Inventory was derived by retaining the wetland and deepwater polygons that compose the NWI digital wetlands spatial data layer and reintroducing any linear wetland or surface water features that were orphaned from the original NWI hard copy maps by converting them to narrow polygonal features. Additionally, the data are supplemented with hydrography data, buffered to become polygonal features, as a secondary source for any single-line stream features not mapped by the NWI and to complete segmented connections. Wetland mapping conducted in WA, OR, CA, NV and ID after 2012 and most other projects mapped after 2015 were mapped to include all surface water features and are not derived data. The linear hydrography dataset used to derive Version 2 was the U.S. Geological Survey's National Hydrography Dataset (NHD). Specific information on the NHD version used to derive Version 2 and where Version 2 was mapped can be found in the 'comments' field of the Wetlands_Project_Metadata feature class. Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. This dataset should be used in conjunction with the Wetlands_Project_Metadata layer, which contains project specific wetlands mapping procedures and information on dates, scales and emulsion of imagery used to map the wetlands within specific project boundaries.</SPAN></P></DIV></DIV></DIV>
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN STYLE="font-size:12pt">Wetlands that are currently mapped or officially proposed for addition to the wetland maps and currently regulated under the New York State Freshwater Wetlands Act outside the Adirondack Park. They do not show ALL wetlands that may be present in an area. There may be additional wetlands on a site that may be protected under local or federal law. This map information is also available as paper maps or as digital data. DEC occasionally amends the regulatory maps to correct errors, such as inaccurate boundaries or wetlands that are missing from the maps. These amendments are conducted through a formal process that includes public notice and an opportunity to comment on the accuracy of the amendment. When official notice of the amendment has been placed, the area proposed for addition becomes regulated and the proposed amendment changes will be included on the website. When new maps are completed, they are filed in the offices of local government clerks. At that time, the boundaries on this website are also updated. Around every state-protected wetland is an “adjacent area” that is also subject to regulation in order to help better protect the wetland against surrounding disturbance. This adjacent area is a minimum of 100 feet, but has been extended for a limited number of particularly sensitive wetlands. The map displayed in this application shows a “Check Zone”, which is an area surrounding a wetland, as depicted on the map, that may also contain wetlands. DEC strongly suggests that if you are considering buying land or undertaking a project within this “check zone” that you request a more precise delineation to determine where the actual wetland boundary may be. To request a delineation, please contact your Regional DEC Office. There are a number of reasons why the boundary may be different from those actually drawn on the map: The mapping is intended to show the approximate location of the actual wetland boundary. The official regulatory maps are drawn at a scale (usually 1" = 2000') that does not establish an exact wetland boundary. When you zoom in on a wetland on the computer, you are attempting to look at the wetland boundary more precisely than the scale at which the wetland was mapped. Wetlands change over time and some maps may have been created over 35 years ago. The actual wetland boundaries may have changed since that time. Wetland classifications: Wetlands are classified from Class I (which provide the most benefits) to Class IV (which provide fewer benefits). The classification is based on the work that wetlands do, such as storing flood water and providing wildlife habitat. The system for classifying wetlands is contained in the New York State wetlands Classification System . Information about how any individual wetland was classified is contained in program files at the regional DEC office in which the wetland is located. Information on how wetlands are mapped can be found at DEC's Freshwater Wetlands Mapping pages </SPAN><A href="https://www.dec.ny.gov:443/lands/5124.html" STYLE="text-decoration:underline;"><SPAN>https://www.dec.ny.gov/lands/5124</SPAN><SPAN>.html </SPAN></A><SPAN STYLE="font-size:12pt">Not all activities in wetlands are regulated. There are many exempt activities that landowners may undertake without permits, however, if you are not sure, please contact your regional DEC office to help you determine if a permit is required. For additional information on NYS Freshwater Wetlands, see DEC's Freshwater Wetlands pages </SPAN><A href="https://www.dec.ny.gov:443/lands/4937.html" STYLE="text-decoration:underline;"><SPAN>https://www.dec.ny.gov/lands/4937</SPAN><SPAN>.html </SPAN></A><SPAN STYLE="font-size:12pt">For information on wetlands inside the Adirondack Park , please contact the Adirondack Park Agency </SPAN><A href="https://www.apa.ny.gov:443/" STYLE="text-decoration:underline;"><SPAN>https://www.apa.ny.gov/ </SPAN></A><SPAN STYLE="font-size:12pt">.</SPAN></P></DIV></DIV></DIV>
Service Item Id: 19fdeb81d7404341b6c54bc92f6378b3
Copyright Text: NYS Dept. of Environmental Conservation