Englesby Brook

Engelsby 10 2Englesby Brook flows east to west across south central Burlington before eventually emptying into Lake Champlain in Burlington Bay. The brook’s headwaters originate within the Burlington Country Club near the South Burlington town line. Throughout its course, the brook flows through dense residential development. The brook itself is entirely within the city of Burlington; however, some of the watershed extends into the northern section of South Burlington. Approximately 84% of the watershed is within Burlington with 16% of the land within the city of South Burlington.

 

Burlington has a population of around 40,000 people and is the largest municipality within Vermont. The drinking water for the city comes directly from Lake Champlain, therefore protecting the lake and the areas that drain directly to it, such as Englesby Brook, is important. Because of its connection to Lake Champlain, Englesby Brook has been listed as a Significant Natural area within Burlington. The bacteria-impaired segment of Englesby Brook runs for its entire length, from the outlet on Lake Champlain north of Blanchard Beach, upstream to the headwaters within the Burlington Country Club. The Englesby Brook watershed covers 0.6 square miles, in the towns of Burlington and South Burlington. Overall, land use in the watershed is 20% forested, 4% agricultural, 75% developed, and 1% wetland.

 

Currently, the Stream Team is monitoring one site along Englesby Brook with the help of volunteers. Water samples are being taken twice monthly throughout the summer and are tested for phosphorous, nitrogen, chloride, and turbidity.

 

 

Date Chloride (mg/L) Nitrogen, Total – Persulfate (mg/L) Phosphorus – Total (TP) (µg/L) Turbidity (NTU)
9/1/2015
551.5
--
41.7
6.71
8/18/15
369
--
54.5
6.95
8/4/2015 337.75 --  67.3 9.57
7/21/2015 254 --  61.5 5.41
7/7/2015 185.08 --  57.8 4.95
6/23/2015 99.93 --  357 101.4
8/19/2014 228 --  59.9 9.99
8/5/2014 254 --  48.9 7.29
7/22/2014 402 --  40.5 4.15
7/8/2014 352 --  42.7 4.74
6/24/2014 404 --  41.6 5.24
8/27/2013 155 0.79 79.9 5.51
8/13/2013 260 0.77 47.8 3.56
7/23/2013 149 0.81 91.3 10.3
7/9/2013 125 1.29 53.9 4.87
6/25/2013 134 0.94 82.3 14.4
9/11/2012 138 0.64 49.3 5.9
8/21/2012 120 0.91 127 6.29
8/7/2012 126 0.63 92.5 4.47
7/24/2012 93.2 0.77 89.2 10.1
7/10/2012 239 0.77 54.4 6.64
Average 2012 143.24 0.744 82.48 6.68
Average 2013 164.6 0.92 71.04 7.73
Average 2014 328 --  46.72 6.28
Average 2015 299.54  -- 106.63 22.50

 

The numbers in red indicate that the sample collected exceeds the standards set by the State of Vermont.

All of the data collected by Chittenden County Stream Team volunteers is shared with the State of Vermont Department of Environmental Conservation (VT DEC). The DEC shares all state-wide data with the Environmental Protection Agency.

State-wide Vermont water quality data can be found here: https://anrweb.vermont.gov/dec/dec/VolunteerMonitoriing.aspx 

National water quality data can be found here: http://www.epa.gov/storet/