November 2018
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Volunteer news for Charles River Watershed Association's Volunteer Monthly Monitoring Program. Learn more at


The next sampling event is

Tuesday, November 20th, 2018 at 6:00 AM

If you are unable to make the sampling event and have not already done so, please let Lisa and your sampling partner know as soon as possible!

Dear Friend,

Attached are the E. coli results from the October sampling event, also displayed on the map below. The October sampling event was classified as a wet weather event, in which 0.23 inches of rain fell in the three days preceding the sampling event.

In October, water samples were collected and tested for E.coli at 34 out of 35 sites. 94% of the sampled sites passed the boating standard (630 MPN/100mL), and 53% of sites passed the swimming standard (126 MPN/100mL). The highest E. coli levels were observed at site 760T, the Muddy River in Boston, with a concentration of 776 MPN/100mL.


Field Comment of the Month:

"So windy the entire width of river has foam stripes" - Site 763S, Mass Ave., Boston/Cambridge


Field Duplicates

The following sites should collect a field duplicate E. coli sample during the November 20th sampling event:

165S - Shaw/Elm St, Franklin/Medway

343S - Farm Rd/Bridge St, Sherborn/Dover

591S - Rt. 9 Gauging Station, Newton/Wellesley

700S - N. Beacon St, Watertown/Brighton


2019 Sampling Dates

The sampling schedule for next year has been set! Please download this document or look at the dates on our webpage for 2019. Don't forget to mark these on your calendar!


CRWA on Display at the Newton Free Library

Learn how the Charles River Watershed Association (CRWA) has used science, advocacy, and law to clean up the “People’s River” since 1965. This display includes the river’s history, how we monitor water quality, and the innovative approaches we’re using to reduce water pollution throughout the watershed.

Now through
Friday, November 30, 2018
Atrium of the Newton Free Library


Mass Rivers Alliance Annual Meeting

Join Mass Rivers Alliance for a festive dinner at their Annual Meeting. The event will take place in Belmont with guest speaker and wild and scenic river expert Tim Palmer. Enjoy dinner, wine, raffle items, and more!

Wednesday, December 5, 2018
6:00 PM – 9:00 PM
Beech Street Center, Belmont
Register here

Thank you for all that you do for the river!  

Until next month,


Lisa Kumpf
Charles River Watershed Association
Office: 781-788-0007 ext. 228
Cell: 508-479-6489

"Saving the Charles River since 1965"


CRWA on Display

Now through November 30th


Financing Sustainable Water

Wednesday, November 14, 2018

More info


Mass Rivers Alliance Annual Meeting

Wednesday, December 5, 2018

More info



"Saving the Charles River since 1965"

Our mission is to use science, advocacy and the law to protect, preserve and enhance the Charles River and its watershed.

For more information about CRWA and our current programs, please visit


We depend on you to help us continue our important programs and to continue the work we began a half-century ago. Please consider a gift today.