Wetlands IC

                            The Island County wetland layer is currently, as of 5/13/2015, a combination of the National Wetlands Inventory (NWI) map made by the U.S. Fish & Wildlife Service (USFWS), along with updates made by Island County staff from local wetland delineations and PCADs (Preliminary Critical Areas Determinations).

This dataset was composed in 2006 with the initiation of the Island County Critical Area Update.  During the process wetland information was compiled from three main resources:  The National Wetland Inventory Dataset, digital wetland delineations performed by Pentec in 1998, and county wetland files.  Approximately 750, 600, and 400 shapes respectively were merged together to form this single dataset.  Many of the same wetlands were found in each dataset thus when combined the total number to wetlands was approximately 1000.

The goal for this layer is eventually show only wetland features documented by local Island County staff.  As of 5/13/2015, this layer shows locally gathered data plus old (pre-2011) NWI data.  This layer should be used in concert with the latest National Wetland Inventory layer downloaded from USFWS.  These two layers together shall serve to facilitate wetland Critical Area regulation in Island County.

                          

                            This layer currently is a mix of locally documented wetland data together with pre-2011 NWI data from USFWS.  This layer is used a tool for the administration of wetlands and Fish & Wildlife Habitat Conservation Area critical areas regulations (ICC 17.02, 17.02A, 17.02B).

This layer will eventually be clipped to show only locally generated wetland data.  This layer is to be used along with NWI data layer(s) generated by USFWS.

Accuracy of this layer is unknown.  Some polygons appear to very consistent with aerial photography, while other polygons appear to be shifted from the actual wetland by as much a 200+ feet.

                          

                            Publication date