Water Quality Monitoring

SEEKING VOLUNTEERS for 2019: Citizen Science helps make OARS strong!

OARS depends on volunteers to monitor the water quality in our rivers--that could be you! We use the results in restoring the health of our rivers. The 2019 sampling season starts in May! To volunteer please email us

We sample on Sunday mornings (dates for 2019 below). Sampling generally starts at 5:30 am and takes about three hours. You can sign up to help on all six Sundays or as few as three. Teams of 3 volunteers each sample one section of the rivers (4 - 6 sites):

  • Assabet River, Westborough to Marlborough
  • Assabet River, Berlin to Hudson
  • Assabet River, Acton to Concord
  • Sudbury River, Framingham to Concord
  • Concord River, Concord to Lowell

2019 Training dates for new and returning volunteers:
Sunday, May 5th, 8:30am in Acton
Wednesday, May 8th, 7:00pm in Hudson
Saturday, May 11th, 8:30am in Wayland

Sampling dates for 2019:
Sunday, May 19th (start 5:30am)
Sunday, June 16th (start 5:30am)
Sunday, July 14th (start 5:30am)
Sunday, August 11th(start 5:30am)
Sunday, September 22nd (start 6:30am)
Sunday, November 10th (start 8:00am)

More information about OARS' water quality monitoring program.