Available as an overlay on the NJ Web Map, or as a KMZ file from the download system.
The list of Trout Production (“TP”) waters was first published in the NJDFW’s Coldwater Management Plan in 2005…
Because of their high water quality and habitat requirements, trout are valuable indicators of healthy aquatic ecosystems. The importance of water quality, as related to the ability of a stream or lake to support wild (reproducing) trout populations is recognized in New Jersey through the state’s surface water classification system. Waters that support reproducing trout populations are referred to as “trout production waters” …Through this classification trout production waters receive one of the highest levels of protection available from activities that could potentially impact coldwater quality and habitat, through a variety of NJDEP regulatory programs.
In 2010, the NJ Bureau of Water Quality Standards published a GIS shapefile of stream classifications for the state, from which we extracted the “TP” streams and converted to an overlay in the web map, as well as a set of KMZs. The dataset is based on the high resolution NHD database (and shows unnamed tributaries as well as the named streams). These are classified as follows:
|FW1-TP||The highest quality streams in the state, and receive the highest level of protection. These are shown as cyan lines in the photo.|
|FW2-TPC1||Slightly lower quality, these receive a “C1” level of protection, nearly as strong as the FW1 streams receive. These are the mid blue lines.|
|FW2-TPC2||These streams receive a lower, “C2” level of protection. These are the darkest blue.|
Photo: NJDEP Bureau of Water Quality Standards and Assessment on a USGS basemap