Mystic River Watershed Association

Mystic River Watershed Association Welcome to the Mystic River Watershed Association. To our knowledge, the watershed is on the colonized lands of the Massachusett, Nipmuc, and Pawtucket tribes.

Contact MyRWA at: 23 Maple St Arlington, MA 02476
(617) 865-6580 (M-F, 9am-5pm) [email protected] www.MysticRiver.org The Mystic River Watershed Association (MyRWA) was founded in 1972 to protect and restore natural resources in the 21-community watershed. MyRWA accomplishes this work through the efforts of professional staff and thousands of volunteers working together on a project-by-pro

ject basis. MyRWA wishes to honor and acknowledge the indigenous communities native to this region and its past, present, and future. The name “Mystic” comes from the term that these tribes used for the river — “Missi-Tuk,” which means “great tidal river.” As you explore the watershed, we encourage you to learn with us about its past and current indigenous heritage.

06/24/2026

💩 Can you believe that 200-year-old sewer systems STILL regularly dump raw sewage into Alewife Brook? If you want to help us put an end to sewage pollution in the Mystic River and Alewife Brook, submit public comment NOW!

Your comments will go to the Massachusetts Water Resources Authority (MWRA) and the Cities of Cambridge and Somerville, as well as to regulators at the EPA and Massachusetts DEP, who will decide what plan will go into place. We also encourage you to contact your local leaders -- from your town or city council all the way up to Governor Healey -- to let them know you care about this issue and want to see a change.

Resources and templates are available at our website, www.mysticriver.org/csos

TRANSLATED CAPTIONS:
Español:
¡Ya está abierto el período para enviar sus comentarios!
Se supone que debo decirles
lo hermoso que está el día.
Pero es difícil decir eso estando aquí,
al final de Alewife Brook,
donde desemboca en el río Mystic,
cuando cada vez que llueve
se vierten aguas residuales sin tratar en este arroyo.
Si le parece que esto está bien,
puede pasar a la siguiente publicación.
Pero si este tema le importa,
debe saber que puede
alzar la voz y ayudar a poner fin a estas descargas de aguas residuales sin tratar.
Hable con el funcionario local de salud pública.
Hable con su representante local.
Dígale a la gobernadora Healey que es momento de invertir.
Hay que detener ya las descargas de aguas residuales sin tratar en nuestro arroyo.
Muchas gracias.
Visite mysticriver.org para saber cómo
puede enviar comentarios y mantenerse informado.
Este verano habrá audiencias públicas
y esperamos que participe.
Gracias.
---
Português:
O período de consultas públicas começou!
Era para eu estar dizendo:
“nossa, que dia lindo!”.
Mas, é difícil dizer isso aqui,
na foz do Alewife Brook,
onde ele deságua no rio Mystic.
Como sabemos, nos dias de chuva,
ocorre o despejo de esgoto
sem tratamento neste local.
Se você acha que está tudo bem,
siga em frente e passe para o próximo post.
Mas se você se importa,
saiba que pode se manifestar
para ajudar a acabar com a despejo
de esgoto misturado com água das chuvas.
Converse com as autoridades
de saúde pública da sua região.
Informe o seu representante local.
Mostre para a governadora Healey
que é hora de investir
e impedir o lançamento de esgoto
sem tratamento nas águas da nossa cidade.
Agradecemos a sua participação.
Acesse o site mysticriver.org e saiba
como enviar a sua opinião e acompanhar o assunto.
Neste verão, faremos consultas públicas.
Contamos com a sua participação.
Obrigado.
---
Kreyòl ayisyen:
Espas pou kòmantè piblik la ouvè!
Mwen ta dwe di w
jan jounen an bèl jodi a.
Men sa difisil pou m fè pandan mwen kanpe isit la, bò Alewife Brook la
Kote li koule al antre nan Mystic River la,
paske lè lapli tonbe,
yo lage dlo egou ki pa trete nan ti rivyè sa a.
Si ou panse sa pa gen problèm,
ou ka kontinye desann pou gade pwochen pòs la.
Men si sa enpòtan pou ou,
ou dwe konnen ke ou kapab
fè tande vwa ou epi ede
elimine debòdman sistèm egou konbine yo.
Di ofisyèl sante piblik lokal ou a.
Di reprezantan lokal ou a.
Di Gouvènè Healey li lè pou envesti.
Li lè pou nou debarase nou de dlo egou ki pa trete
y ap lage nan ti rivyè nou an.
Mèsi anpil.
Ale sou mysticriver.org pou w konnen kijan
ou ka voye kòmantè epi suiv sa k ap pase.
Gen odyans piblik ki gen pou fèt
ete sa a, nou espere w ap patisipe ladan yo.
Mèsi.
---
简体中文:
公众意见征集期现已开启
我本该介绍今天的风光有多宜人
但站在Alewife Brook的下游
我实在说不出口
这条溪流最终汇入Mystic River
每逢下雨天
未处理的污水就会直接排入溪中
如果你觉得这无关紧要
可以直接划走去看下一条帖子
但如果你关心这个问题
可以站出来发声
推动解决合流制污水溢流问题
请告诉当地的公共卫生官员
请告诉当地的选区代表
请告诉希利州长
现在是时候加大投资了
彻底解决未处理污水排入溪流的问题
非常感谢
请访问mysticriver.org
了解如何提交意见并持续关注此事
今年夏天还将举行多场公众听证会
我们期待你的积极参与
谢谢

Please join us in welcoming MyRWA's 2026 team of summer fellows: Alice Wall, Hannah Podol, Isa Tutter, Jasiah Ortega, Lu...
06/22/2026

Please join us in welcoming MyRWA's 2026 team of summer fellows: Alice Wall, Hannah Podol, Isa Tutter, Jasiah Ortega, Lucas Lowe, Sarah Neal, and Sydney Taylor. These fellows are already bringing awesome energy to our water quality, stewardship, greenways, and climate work! Look out for them across our events this summer 👋

Learn more about our 2026 fellow team here >>> https://mysticriver.org/news/2026/6/15/meet-our-summer-fellows-j4dxw

The Mystic River Pride Flotilla is NEXT WEEKEND - Saturday June 27th! Free and open to all, this is a family-friendly no...
06/21/2026

The Mystic River Pride Flotilla is NEXT WEEKEND - Saturday June 27th! Free and open to all, this is a family-friendly non-alcoholic event to showcase the Mystic River is for EVERY BODY.

Participate on the water: Fabulously decorated human-powered boats of all types—canoes, kayaks, paddleboards, rowing shells, dragon boats, kinetic sculptures, and more—will paddle around the Mystic River basin in Somerville & Medford, MA, to celebrate LGBTQIA+ people and their allies.

Spectate from a riverside park: all are welcome along the riverbanks, at Macdonald Park in Medford and near Blessing of the Bay Park in Somerville.

The flotilla commences 12-noon until 1 PM. More information and boat registration at https://www.gentlegiantrowing.org/pride

06/20/2026

Did you know that trash is one of the most common pollutants in the Mystic River watershed?

We're hosting a cleanup event in Chelsea on June 21! These cleanups are a chance for our community to take action and demonstrate pride in their neighborhood; get the whole family involved!

Learn more and sign up at www.givepulse.com/event/868701

These events are made possible with the support of the City of Chelsea and local partners like MWRA, GreenRoots, and MAPC, and are part of the City's MVP 2.0 initiative. These events will blend physical action, education, and community-building.

--

¿Sabías que la basura es uno de los contaminantes más comunes en la cuenca del río Mystic?

Estamos co-organizando un evento de limpieza el 21 de junio. Esta limpieza de parques y aceras es un oportunidad para que ustedes tomen acción y demuestren el orgullo por su vecindario. ¡Involucren a toda la familia!

Obtengan más información e inscríbanse en www.givepulse.com/event/868701

Estos eventos son posibles gracias al apoyo de la Ciudad de Chelsea y socios locales como MWRA, GreenRoots y MAPC, y forman parte de la iniciativa MVP 2.0 de la Ciudad. Estos eventos combinarán acción física, educación y construcción de comunidad.

Happy Juneteenth! MyRWA is proud to celebrate Juneteenth and honor the freedom and independence of African Americans acr...
06/19/2026

Happy Juneteenth! MyRWA is proud to celebrate Juneteenth and honor the freedom and independence of African Americans across the watershed and across the country.

If you're looking for a Juneteenth event to attend, MyRWA will be attending Juneteenth celebrations in Malden and Chelsea this year! We'd love to see you there.

Malden Juneteenth (11-3 at Lincoln Commons): https://cityofmalden.org/Calendar.aspx?EID=3446&month=6&year=2022&day=22&calType=0
Chelsea Juneteenth (12-5 at Washington Park): https://chelseaccc.org/cbc-juneteenth-celebration/

06/16/2026

Your gift to the Mystic River Watershed Association can make a generational impact!

To give, visit >>> https://secure.actblue.com/donate/riverherringedu

In the 1990's, John Reinhardt, MyRWA's Inaugural Executive Director, brought his nephews to the dam at the Mystic Lakes to help scoop the river herring over by hand in what would ultimately become the famous Bucket Brigade.

Now, three decades later, a new dam and a modern fish ladder passage, made possible by our generous community of supporters, has allowed the herring to get over the Mystic Lakes Dam without our help.

The results have been extraordinary. Last year, we counted over 815,000 fish passing through the dam. This year, at Horn Pond in Woburn, yet another fish passage will soon be under construction, and (we hope) the Mystic run could reach over 1 million fish.

When you give to the Mystic River Watershed Association, your contribution supports our herring monitoring work alongside our many other programs — from education to water quality science — that make the Mystic River watershed a better place to live for fish and people alike!

Sharing is caring? 😆 Herring monitor Cami Johnson got these amazing photographs of a double-crested cormorant trying to ...
06/14/2026

Sharing is caring? 😆 Herring monitor Cami Johnson got these amazing photographs of a double-crested cormorant trying to steal a river herring from a great blue heron, who snatched the fish right at the top of the fish ladder at the Mystic Lakes Dam.



📸 : Cami Johnson

Address

23 Maple Street
Arlington, MA
02476

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

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