Please help us achieve our mission to protect drinking water and preserve land to maintain the natural beauty and enhance the livability of your town.

Find inspiration for your spring planting and decorating while supporting Great Swamp Watershed Association on June 1, 2016, during our 3rd annual Home & Garden Tour. The tour will feature impressive mansions, enchanting gardens, and elegant estates. Purchase tickets here.

Visit Our Conservation Management Area!

Conservation Management Area Sign. Photo by Paul SteckYou’re invited to explore our Conservation Management Area (CMA), a wooded 53-acre natural area in Harding Township that’s open to the public for walking and casual hiking. Though GSWA holds a number of scheduled events throughout the year — family hikes, group tours, and moonlight walks to name a few, you can enjoy the CMA on your own at your convenience [read more] [directions] [Trail Map] [Informational Brochure – coming soon] [Hunting info].

Great Swamp Watershed Water Quality Report Card

Report (pdf, 10 mb)
Presentation (pdf, 7 mb)


Check out our Research Library!

School Water Monitoring on the PassaicRead about the SWaMP program and see the results of monitoring tests performed by high school and college students in communities along the Passaic River.

Support Great Swamp Watershed Association by shopping at smile.amazon.com

Related Sites of Interest

Great Swamp National Wildlife Refuge: www.fws.gov/refuge/great_swamp/

Friends of Great Swamp NWR: www.friendsofgreatswamp.org

Great Swamp Outdoor Education Center (Morris County Park Commission): www.morrisparks.net/aspparks/gswampmain.asp

Somerset County Park Commission Environmental Education Center: www.somersetcountyparks.org/parksfacilities/eec/EEC.html

Links to other internet sites

Contacts for Emergency Reporting of Pollution and/or Dumping