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Welcome to Your Estuaries Partnership

The mission of Piscataqua Region Estuaries Partnership (PREP) is to protect and improve the water quality and overall health of the region’s two estuaries – Great Bay & Hampton-Seabrook. We monitor and research the region’s water ways, encourage all who live, work and play on the Seacoast to take actions to help protect and preserve the places we love, support development patterns that protect water quality, maintain open spaces and important habitat, and restore estuarine resources. Read more.

To connect with the latest meetings & news from our Technical Advisory Committee Process  Click here.



Science & Research

PREP’s core work includes our science, research and monitoring programs. We fund and coordinate scientific research projects and long-term monitoring to answer questions about the health of the estuaries and how they are changing over time. Our triennial  State of Our Estuaries reports explain the status and trends of environmental conditions in the estuaries. PREP also maintains an extensive Publications Library of research reports.  Read More



Get Involved

As the Community for Clean Water, PREP works to unite and encourage you, your friends and family to take simple steps to reduce water pollution caused by our every day actions. The power to make a difference lies in every one of us changing small behaviors so that all of us can continue to enjoy this fantastic place we call home. Read More



Partnerships & Initiatives

PREP is what it is because of strong partnerships and collaborations, the work of protecting and preserving our estuaries could not be successful without the tireless efforts and cooperation from many. A primary initiative of PREP is to conserve natural areas and restore ecosystems that support estuarine health. PREP ‘s guiding document is the Piscataqua Region 2010 Comprehensive Conservation and Management Plan which contains 82 action plans that provide a roadmap to protecting and restoring the Great Bay and Hampton-Seabrook estuaries.  Read More




Featured Stories

  • October 2017: Watershed Watch
    October 2017: Watershed Watch
    Our Watershed Watch feature is dedicated to sharing our partners’ and others latest research and reports as well as local, regional and national news. Assessing the Effects of Rising Groundwater from Sea Level Rise on the Service Life of Pavements in Coastal Road Infrastructure University of New Hampshire: Jayne F. Knott, Mohamed Elshaer, Jo Sias Daniel, Jennifer M. Jacobs, and...
    Read more
  • October 2017: Great Bay Cleanup
    October 2017: Great Bay Cleanup
    Great Bay Cleanup 2017 Cleanup volunteers at the Great Bay National Wildlife Refuge, Newington, NH. (Photo by Emily Lord) Continuing a Partnership In 2016, you may remember our Great Bay Debris Mapping and Spring Cleanup and our Great Bay National Wildlife Refuge fall cleanups with the Great Bay Gunners and volunteers. After a successful year, and knowing there would unfortunately be more...
    Read more
  • October 2017: Community Calendar
    October 2017: Community Calendar
    Volunteer & Citizen Science Opportunities Region Wide! The Stewardship Network Online Hub Connect Here Looking for Coastal Research Volunteers for NH Sea Grant! The Coastal Research Volunteers Hub Connect Here Explore Great Bay at the Great Bay Discovery Center Ongoing events Click here for the Calendar of Events for Young & OldSoutheast Land Trust of New Hampshire Ongoing Events Click Here...
    Read more


PREP is part of the U.S. Environmental Protection Agency’s National Estuary Program, a joint program between local, state and federal agencies established under the Clean Water Act with the goal of protecting and enhancing nationally significant estuarine resources. PREP is supported in part by an EPA matching grant and is housed within the School of Marine Science and Ocean Engineering at the University of New Hampshire.

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