Celebrating Four Decades of River Restoration, Community, and Connection

Since 1986, OARS 3 Rivers has protected, improved, and celebrated the Sudbury, Assabet, and Concord rivers, together with YOU!

As we mark our 40th year, we’re honoring the people, places, and moments that have shaped our 3 rivers’ comeback story. Join us throughout the year for special events, stories, and opportunities to explore, learn, and give back to the rivers that connect us all.

Join us for a year-long celebration of our 3 rivers! From the Wild & Scenic Film Festival and River Music event to art shows, science talks, river cleanups, and our Annual Meeting, there’s something for everyone who loves the rivers.

Our Story: 40 Years of River Revival

OARS began with a handful of passionate residents who refused to give up on their rivers.

 

In the 1980s, the Assabet and Concord were heavily polluted—fish were scarce, algae blooms frequent, and many stretches were unsafe for recreation. Over the next four decades, OARS volunteers, scientists, and advocates changed the course of our rivers’ story. Together, we are removing dams, monitoring water quality, educating thousands of students, and building a community devoted to keeping our 3 rivers clean, connected, and thriving.

 

Stay tuned as we share stories and photos from OARS’ early days and the people who started it all.

River Voices

Meet the people who shaped OARS

from our early advocates and long-time volunteers to new supporters helping carry our mission forward

SARAH NELSON

Water Quality Intern 1996 to 1997

 

 

As a water quality intern with O.A.R. from 1996–1997, Sarah Nelson discovered how field science, collaboration, and curiosity could shape a career. Today, as Director of Research at the Appalachian Mountain Club, she leads community science efforts that reconnect people with rivers across the watershed. Explore Sarah’s River Voices story.

 

 

 

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PAUL GOLDMAN

Board of Directors 1999 to 2023 

 

 

From Board service and water sampling to founding the Water Wise Workshops, Paul Goldman has left a lasting mark on OARS’ education programs. His story shows how curiosity, commitment, and a belief in early learning can ripple outward for decades. Explore Paul’s River Voices feature.

 

 

 

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SUE FLINT

OARS Staff Scientist from 1999 to 2019

 

 

From launching StreamWatch to building OARS’ earliest water quality systems, Sue Flint spent two decades shaping the science behind our restoration work. Her story reflects the dedication and curiosity that move our rivers forward. Read her full River Voices feature.

 

 

 

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LEN RAPPOLI

Water Quality Monitoring Volunteer, 1996 to date

 

 

For decades, volunteer geologist Len Rappoli has played a key role in OARS’ water quality monitoring, contributing skill, time, and unwavering commitment to the health of our rivers. His story celebrates the volunteers who make real, lasting change possible. Read his full River Voices feature.

 

 

 

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Have a story to share about the rivers or your connection to OARS? We’d love to hear from you.

 

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Celebrate With Us All Year Long

40 Years 3 Rivers events

OARS 18th Annual Wild & Scenic Film Festival

April 22 - April 26, 2026

WHEN: April 22-26, 2026 WHERE: Concord, MA   To celebrate Earth Day and OARS’ 40th anniversary, we are bringing the Wild & Scenic Film Festival to Concord, where 3 remarkable …

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Wild & Scenic: A Conversation with Julia Blatt and Barb Moran

April 22 - April 22, 2026

APRIL 22, 2026 – EARTH DAY Concord Academy, 5:30-7:00pm Centennial Arts Center Music Hall, 230 Main St, Concord, MA     Get Tickets Here     Let the 18th Annual …

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The Noisy Puddle Bingo

April 23 - April 25, 2026

  APRIL 23-25, 2026 CONCORD CENTER   Join in on this 3-day, cross-town bingo game and learn more about fascinating vernal pool species. Pick up a game board at local …

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The Noisy Puddle Reading with Dr. Linda Booth Sweeney

April 23 - April 23, 2026

APRIL 23, 2026  Haute Coffee, 3:00-4:30pm 12 Walden St, Concord, MA     In partnership with the Concord Land Conservation Trust (CLCT), this family-focused event includes a reading of the …

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Movie Night at The Robbins House

April 23 - April 23, 2026

APRIL 23, 2026  The Robbins House, 6:30-9:00pm 320 Monument St, Concord, MA     It’s an outdoor movie night! In partnership with The Robbins House, an evening under the stars …

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Wildlife Photography Exhibit Opening Reception

April 24 - April 24, 2026

APRIL 24, 2026  Wright Tavern, 5:00-7:00pm 2 Lexington Rd, Concord, MA   Get tickets here   Join us for the opening reception to a spectacular Wildlife Photography & Art Exhibit …

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Beavers & Beer

April 25 - April 25, 2026

APRIL 25, 2026  Wright Tavern, 11:00am-4:00pm 2 Lexington Rd, Concord, MA     Already a community favorite, join OARS and Wright Tavern for a beloved Saturday beer garden celebrating nature’s …

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Immersive River Experience

April 25 - April 25, 2026

APRIL 25, 2026  Corinthian Lodge, 11:00am-4:00pm 58 Monument Square, Concord, MA     An experience for the senses, this immersive installation set in the heart of the Masonic Temple transports …

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Wild & Scenic Film Festival Screenings

April 25 - April 25, 2026

APRIL 25, 2026  Concord Scout House, 6:00-8:30pm 74 Walden St, Concord, MA     Get Tickets Here     The main event! Settle in at the Concord Scout House for …

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Wetlands Talk & Walk

April 26 - April 26, 2026

APRIL 26, 2026  Thoreau Farm, 1:00-3:00pm 341 Virginia Rd, Concord, MA     Register to attend Here     An all-levels presentation on wetlands ecology followed by a guided walk …

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Festival Closeout at The South Bridge Boathouse

April 26 - April 26, 2026

APRIL 26, 2026  The South Bridge Boathouse, 5:00-7:00pm 496 Main St, Concord, MA   That’s a wrap! An awards ceremony and celebration with our community partners and sponsors to mark …

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2026 Annual Meeting

June 02 - June 02, 2026

  SAVE THE DATE 2026 Annual Meeting More information coming soon

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VIEW FULL EVENTS CALENDAR

 

(All 40 Years 3 Rivers events, highlighted in red)

Merch Zone: Wear Your River Pride

Show your river love and support our work!

 

Every purchase helps fund the science, restoration, and education that keep our rivers healthy.

40 Places for 40 Years

Follow us on social media, @OARS3Rivers, as we journey through all 36 municipalities and 4 iconic landmarks of the SuAsCo watershed.

Each post celebrates a unique corner of our rivers—its history, ecology, and the people who call it home.

See the stories unfold on TikTok and Instagram.

Parallax Image photo Credit: Sterling Worrell