For over 30 years, we have collected high quality data on the health of streams and aquifers in the North and South Branch Raritan Region (WMA8) of New Jersey.  But we don’t stop there.  We share our data, and the message we obtain from it, in easily digestable, interactive maps and report cards, as peer-reviewed reports and journal articles, and at our annual State of Our Watershed conference.  Our water quality data are analyzed by staff scientists and also shared with a variety of partners from academic institutions, municipal officials, government agencies, other non-profits, and academia, to inform research and decision-making aimed at protecting and restoring water resources.  Raritan Headwaters is frequently called upon to advise on policies based on our sound, scientific data and the lessons we have learned.

Welcome to our map gallery!

Explore our data below either by our interactive maps or download a map.

For questions please contact Melissa, GIS/IT Manager at mmitchell@raritanheadwaters.org

Online Map Gallery

Printable Maps and Projects

Data

If you would like access to our data, please fill out the form below.

Data Use & Attribution: Our data are publicly accessible via our Stream Monitoring Map and upon request to support transparency, education, and informed decision making. While the data is publicly available, it remains the property of RHA. Use of our data is encouraged but must include clear attribution to Raritan Headwaters Association. Submission, redistribution, or deposition of our data into other agencies, organizations, or external repositories requires prior written approval from RHA. This helps ensure appropriate context, accuracy, and responsible stewardship of the data. If you are interested in using or publishing our data more broadly, please contact us. We are always happy to discuss potential collaborations.