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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.

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

  • 2014 King Tide Photo Contest
    2014 King Tide Photo Contest
    Thursday, October 9th is KING TIDE DAY! Help us CAPTURE A KING! King Tide is an especially high tide that occurs when the gravitational pull of the sun and moon reinforce one another. This extra-high tide happens twice a year at the times when the moon is closest to the earth. The next king tide in the Seacoast will occur...
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  • Shots from the 'Shed - September 2014
    Shots from the ‘Shed – September 2014
    Photos from around the watershed from our readers  Local Portsmouth photographer Kristin Burchsted captured the tall ship schooner Mystic last month when it visited the Prescott Park Fish Pier. Visit Kristin’s photography site she’s awesome! If you have a great photo from your adventures in the estuaries please send it to us so we can share it as our Shot from...
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  • September 2014: Clean Water Community Calendar
    September 2014: Clean Water Community Calendar
    Volunteer  & Citizen Science Opportunities Region Wide! The Stewardship Network Online Hub Connect Here Counting baby oysters, pulling garlic mustard, and more!  Get involved in protecting & preserving this fantastic place we call home!   Special Sails on the Gundalow  Public Sails Throughout the Fall  Gundalow Docks, Prescott Park, Portsmouth, NH  There’s not a lot better than getting out on...
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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.