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Water Quality Notification Program - Charles River Watershed Association

Project Overview

CRWA's Water Quality Notification Program uses a system of color-coded flags to indicate whether or not the river is safe for boating at ten boating locations between Watertown and Boston. Flag colors are based on E. coli and cyanobacteria (blue-green algae) levels. 

CRWA estimates E. coli bacteria levels using models that take into account a variety of environmental factors including rainfall and river flow. CRWA collects water samples weekly to verify the model forecasts. Cyanobacteria monitoring is conducted every 1-2 weeks. Read more about the development of CRWA's bacteria prediction model.

Thank you to Benjamen Wetherill of ACASAK Technologies for assistance developing and maintaining this automated system. 

 

LEARN MORE: Boating Safely on the Charles River

Water Quality Today

Updated 2:30 pm on Thursday, September 20, 2018

Newton Yacht Club

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Watertown Yacht Club

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Community Rowing, Inc.

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Northeastern's Henderson Boathouse

 

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Charles River Canoe and Kayak at Herter Park

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Harvard's Weld Boathouse

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Riverside Boat Club

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Charles River Yacht Club

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Union Boat Club

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Community Boating

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Charles River Canoe and Kayak at Kendall Square

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Water Quality Flag Colors

Water Quality Notification Program - Charles River Watershed Association

Blue Flags:

Indicate suitable boating conditions
Water Quality Notification Program - Charles River Watershed Association

Red Flags:

Indicate potential health risks

Overview Video

Sign up for Daily Water Quality Alerts

About Water Quality Notification

About Field Science

Project Manager

Elisabeth Cianciola - Charles River Watershed Association
Elisabeth Cianciola
Aquatic Scientist
Bio | 781.788.0007 x231 | 
Email

Learn more about our work