Volunteer Stream Monitoring


Help make a difference in our environment! Join volunteers throughout Fairfax County who monitor water quality in local streams. County and state officials will use the data you collect to assess the overall condition of our streams and help determine watershed management initiatives.

Summer 2014 Stream Monitoring Events

Stream monitoring events go on year-round. If you are interested in attending, email the coordinator or call 703-324-1422, TTY 711.

  • Wednesday, August 6, 5pm - 7:30pm, Pohick Creek, Lorton area
    Help monitor the health of Pohick Creek as it flows past the southern terminus of the Cross County Trail in wooded parkland.
  • Saturday, August 30, 10am – 12:30pm, Cub Run
    Volunteer to monitor at this lovely stream site.
  • More fall stream monitoring to be announced. Sign up for the Watershed Calendar to receive monthly updates.

How Stream Monitoring Works

group uses net to catch insects in streamWe train volunteers to assess ecological conditions in streams based on the presence and abundance of benthic macroinvertebrates (aquatic insects). Volunteers also learn how to take chemical measurements about nitrate/nitrite and turbidity. Training includes indoor and field workshops and mentoring by experienced monitors.

The Northern Virginia Soil and Water Conservation District provides all the training and equipment you need. No prior experience is necessary. Volunteers can monitor at different levels of commitment. You may choose to assist other monitors when it is convenient for your schedule. Or you may adopt your chosen stream and commit to monitoring it four times a year. We will make the program work for you!

NVSWCD reviews and certifies the data and forwards it to the Fairfax County Stream Protection Strategy Program, Virginia Department of Environmental Quality, and Virginia Save Our Streams.

Group of four examines insects in bowlTo help monitor your local stream, email the coordinator or call 703-324-1422, TTY 711.


Contact Fairfax County: Phone, Email or Twitter | Main Address: 12000 Government Center Parkway, Fairfax, VA 22035
Technical Questions: Web Administrator

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