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Herring Ponds Watershed Association

Herring Ponds Watershed Association

Educate - Protect - Monitor

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  • WHO WE ARE
  • WHAT WE DO
    • Monitoring
      • Water Quality
      • Water Transparency
      • Water Flow
      • Dissolved Oxygen
      • Storm Water Runoff
      • River Herring
      • Invasive Species
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      • Wildlife
    • Education and Outreach
    • Protection
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Reduce Mosquitoes in Your Yard Safely Without Toxic Sprays

Herring Ponds Watershed Association Posted on May 9, 2026 by hpwsadmMay 9, 2026

Join the Mosquito Bucket Challenge From Doug Tallamy and Homegrown National Park Mosquitoes are often controlled with broad pesticide spraying, … Read Full Article

Posted in May 2026 | Leave a reply

Do we really need to add lime to our lawn?

Herring Ponds Watershed Association Posted on May 7, 2026 by hpwsadmMay 7, 2026

Geri’s Garden Tips Because our soil here is pretty acidic, many spread lime on our lawns in the spring. I … Read Full Article

Posted in May 2026 | Leave a reply

Reducing Phosphorus – Reducing Cyanobacteria Blooms

Herring Ponds Watershed Association Posted on May 7, 2026 by hpwsadmMay 7, 2026

By Geri Williams The Cyanobacteria blooms that caused a health warning and limited use of Great Herring Pond for several … Read Full Article

Posted in May 2026 | Leave a reply

Save the Date! Upcoming Gala for the HPWA Land Acquisition Fund

Herring Ponds Watershed Association Posted on May 7, 2026 by hpwsadmMay 7, 2026

HPWA will be hosting our first Gala Fundraiser in September to raise funds to enable a future contribution to help … Read Full Article

Posted in May 2026 | Leave a reply

President’s Letter May 2026

Herring Ponds Watershed Association Posted on May 7, 2026 by hpwsadmMay 7, 2026

I am very excited about our new GALA Fundraiser for the Land Acquisition Fund initiative since it combines aspects of … Read Full Article

Posted in May 2026 | Leave a reply

Herring Fest is BACK!

Herring Ponds Watershed Association Posted on March 2, 2026 by hpwsadmMarch 2, 2026

But at Brewster Garden by Tess Goldmann Just as the herring return to the same rivers every year, our ever-popular … Read Full Article

Posted in Events, March 2026 | Leave a reply

What are Invasive Species?

Herring Ponds Watershed Association Posted on March 2, 2026 by hpwsadmMarch 2, 2026

by Jerry Levine Invasive species can be plants, animals, and other living organisms such as microbes etc. These species are … Read Full Article

Posted in Invasive Species, March 2026 | Leave a reply

Geri’s Spring Gardening Tips

Herring Ponds Watershed Association Posted on March 2, 2026 by hpwsadmMarch 2, 2026

by Geri Williams With all the snow this winter, many are dreaming about spring and warm weather. It seems right … Read Full Article

Posted in Gardening, March 2026 | Leave a reply

Help Count Herring this Spring

Herring Ponds Watershed Association Posted on March 2, 2026 by hpwsadmMarch 2, 2026

by Lynn Oertel It might be hard to believe with all the snow and cold of this winter, but soon … Read Full Article

Posted in March 2026, River Herring | Leave a reply

HPWA will offer the Mandatory Boating Safety Course in April 2026

Herring Ponds Watershed Association Posted on March 2, 2026 by hpwsadmMarch 23, 2026

by Flemming Christensen Boating Safety Certification required ALL operators of boats and personal watercraft (pwc) in Massachusetts must now obtain a … Read Full Article

Posted in Boating Safety, March 2026 | Leave a reply

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Box 522
Sagamore Beach, MA 02562

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