September 2018

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


The next sampling event is

Tuesday, September 18th, 2018 at 6:00 AM

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

Dear Friend,

Attached are the E. coli results from the August sampling event, also displayed on the map below. The August sampling event was classified as a wet weather event, in which 0.14 inches of rain fell in the three days preceding the sampling event.

In August, water samples were collected and tested for E.coli at 34 out of 35 sites. All sites passed the boating standard (630 MPN/100mL), and 56% of sites passed the swimming standard (126 MPN/100mL). The highest E. coli levels were observed at site 743S, the Western Ave. Bridge in Boston/Cambridge, with a concentration of 613 MPN/100mL.


Field Comment of the Month:

"Sleeping heron" - Site 648S, Lakes Region, Waltham


Featured Photo:

The cover photo for this month's newsletter comes from Site 199S at Populatic Pond in Norfolk, MA. Each month I'll feature a new field photo at the start of the newsletter. Make sure to send in your pictures either through the Survey123 app or email!


September is a busy month for sampling! This table, which details what bottles should be collected at each site, may be useful to you.


Nutrient Sampling

September is a nutrient sampling month! If you sample at a nutrient site, please make sure to fill your 1L brown bottles and drop them off with your regional coordinator.


Field Duplicates

The following sites should collect a field duplicate E. coli sample during the September 21st sampling event:

35CS* - Central St., Milford

534S* - Rt. 109, Dedham

635S - 2391 Comm. Ave., Newton

773S - Longfellow Bridge, Boston/Cambridge

*35CS and 534S should also collect a nutrient field duplicate sample


UMass Amherst Hydrogeology Sampling

September is the second and last month this year that we will support the Hydrogeology group at UMass Amherst by collecting additional samples at some of our monitoring sites, listed below. If you collected the small bottle of water in August, you should also collect one in September. As a reminder, you can fill up the small bottle from your temperature bottle and transport it on ice to your regional drop-off site.

35CS - Central St., Milford

130S - Maple St. bridge, Bellingham

229S - Rt. 115/Baltimore St., Millis

318S - Rt. 27 bridge, Medfield

400S - Charles River Rd. bridge, Dover

521S - Ames St. bridge, Dedham

567S - Nahanton Park, Newton

621S - Park Rd., Weston

662S - Moody St. bridge, Waltham

700S - N. Beacon St. bridge, Watertown

763S - Mass. Ave. bridge, Cambridge

784S - New Charles River Dam, Boston

This effort supports the group's study on the isotopic composition of surface and ground waters in the Northeast. You can read their report on last year's results from our watershed here.


Allston I-90 Project Site Walk

On Wednesday evening WalkBoston, CRWA, Charles River Conservancy, and Esplanade Association will co-host a site walk along a portion of the throat section of the I-90 Project. The walk will highlight the importance of improved pedestrian and bike access and improved river health in this area. CRWA's own Emily Norton and Elisabeth Cianciola will help lead the walk which is open to the public.

Wednesday, September 12, 2018
5:30 PM – 6:30 PM
BU Beach, Allston
Please register here


"Pollution Solution: Community Action for a Cleaner Charles River" Workshop

Join the Waltham Land Trust for a presentation by Elisabeth Cianciola, CRWA, on the history of the Charles River, its current state, and ways members of the community can help improve its health for the future. Come learn how you can be part of the pollution solution!

Tuesday, September 25, 2018
7:30 PM – 9:00 PM
First Parish Church, Waltham
More information


Join Us at CRWA's 6th Annual Champions of the Charles Gala

Experience a magical night at the museum! Join Charles River Watershed Association for an evening of science, fun, and celebration at the Museum of Science on September 27th. We will honor Robert Zimmerman, CRWA Executive Director from 1990 - 2018, and John Sullivan of Boston and Water Sewer Commission for their tireless dedication to the Charles River.

Thursday, September 27, 2018
6:00 PM – 10:00 PM
Museum of Science
More information

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"


Green Streets Webinar

Wednesday, September 12, 2018

More info


Allston I-90 Project Site Walk

Wednesday, September 12, 2018

More info


Pollution Solution Workshop

Tuesday, September 25, 2018

More info


Champions of the Charles Gala 

Thursday, September 27, 2018

More info


Mapping Boston's Green Spaces

Through September 30, 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.