|Water Resources of New Hampshire and Vermont
Brook, Burlington, Vermont:
streamflow and water quality
USGS NH/VT District home page
EMPACT: Community-based environmental monitoring in the
Lake Champlain Basin Program
Done in collaboration with:
State of Vermont Agency
of Natural Resources and the City of Burlington
the Effectiveness of Urban Best Management Practices in Improving
Water Quality of Englesby Brook, Burlington, Vermont -
The City of Burlington will be leading a clean up effort for
the Englesby Brook watershed over the next 5 years as part
of the Pine Street Barge Canal Superfund agreement. The cleanup
measures will include erosion control, stormwater treatment,
and source control. The USGS, in cooperation with the City
of Burlington and the Vermont Agency of Natural Resources,
will be monitoring the effectiveness of the cleanup effort.
Specifically, we will be assessing changes in water quality
of the water flowing to Lake Champlain.
The Englesby Brook watershed is a small (0.9 square miles) basin
located entirely in the urban areas of Burlington and South
Burlington, Vermont. The USGS monitoring station is close to
the mouth of the stream where it enters Lake Champlain at Blanchard
The USGS has installed a concrete weir, as shown in the photo,
to create a controlled stream channel for measuring streamflow
volume (termed "discharge"). Stage is the depth
of water in the pool created behind the weir. Stage is related
to discharge by a formula based on channel and weir geometry.
By measuring stage in the pool at 15-minute intervals, we
have an almost continuous measure of discharge.
Two instruments monitor water quality in Englesby Brook. The
first is a meter which provides hourly pH, dissolved oxygen,
temperature, conductivity, and turbidity data. The second
is an automated sampler which collects water samples into
bottles for later analysis of nitrogen, phosphorus, and sediment
at the Vermont Department of Environmental Conservation Laboratory.
The sampler is triggered to collect a sample when a specified
water level or "stage" has been measured in the weir pool.
The water quality and streamflow instruments "talk" to each
other through a data logger.
streamflow and water-quality data
URL for this page is: http://nh.water.usgs.gov/CurrentProjects/Englesby/Englesby.htm
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