GSWA's Stream Team monitors the five streams in the Great Swamp watershed, a 55-square-mile region in New Jersey's Morris and Somerset Counties.
Monitoring includes both chemical and visual assessments. The primary goal of the chemical monitoring program is to measure the volume of water, nutrients, and sediments flowing into the Great Swamp National Wildlife Refuge. The main purpose of the visual assessment program is to help gather data for the Watershed Association and the State on water bodies that are not currently being assessed by the New Jersey Department of Environmental Protection. All of this data helps to generate a picture of the overall health of our streams and identify areas where where water quality improvements could be made.
The streams within the watershed are the Upper Passaic River, Black Brook, Great Brook, Loantaka Brook, and Primrose Brook, all of which flow into Great Swamp and exit as the Passaic River via Millington Gorge.