See information below to request additional information from DSL. This does not mean that wetlands are present but does show where there is a higher probability for wetland presence. Soil mapping is included to show areas where the soil is more likely to be wetter longer, increasing the potential for wetland presence.US Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS) Soil Survey.US Geological Survey (USGS) National Hydrography Dataset (NHD) вЂ“ waters.*See guidance below for using the SWI and LWIs. LWI mapping is more accurate than NWI and NHD mapping within an LWI study area. If the area of interest is within an LWI study area then do not use this tool at this time ( seeВ * below), but instead go to the LWI web page to view the LWI maps and reports in PDF. The web map does show the outlines of LWI study areas and the LWI names.

The current web map does not include the LWI mapping, which will be added soon.

DSL-Approved Local Wetlands Inventories (LWI) вЂ“ wetlands and waters.

US Fish and Wildlife Service (USFWS) National Wetlands Inventory (NWI) вЂ“ wetlands and waters.

Actual field conditions determine the presence or absence of wetlands. For greater detail see the Disclaimer and Layer descriptions and limitations. Included Layers: Each mapping type, or вЂњlayer,' has accuracy limitations. This web map is still in development and is missing some mapping вЂ“ read on for more information. This reduces the probability of the SWI lacking a wetland or water that is present on the ground, sometimes called вЂњgiving a false negative result.' The SWI is updated on a regular basis as new mapping becomes available. The SWI web map gives users the ability to review all the maps together. The SWI consists of wetland inventories and other natural resource mapping that identify approximate locations of wetlands and waters (streams, ponds, etc.), listed below. The SWI is a screening tool to help identify approximate locations of wetlands and waterways.

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