Burlington Country Club/Spear Street Gravel Wetland

Gravel Wetland under construction
Placing gravel filter media
Placing gravel wetland soil


Burlington Country Club on Spear Street, across from the Miller Research Farm


Potash Brook is one of five stormwater impaired waterbodies in South Burlington. Uncontrolled stormwater runoff creates significant erosion of stream banks, along with discharging phosphorus, nitrogen and bacteria pollution to both Potash Brook and Lake Champlain.

The City is in the process of designing and constructing projects with the potential to reduce flows in Potash Brook, restore the stream to health, and satisfy requirements in the City’s MS4 permit. The Burlington Country Club (BCC) project was first identified in the Potash Brook Flow Restoration Plan (FRP) and has remained a high priority for the restoration of Potash Brook since that time.


The City of South Burlington Stormwater Utility received a grant to design a subsurface gravel wetland on an unused piece of property owned by the Burlington Country Club. The project includes the design to allow for the treatment of stormwater runoff form 5 acres of impervious surfaces.


The project reduces the peak flow of the 1-year, 24-hour storm event by 97%, from 21.82 cubic feet per second (cfs) to 0.67 cfs and filters the water quality volume from 5 acres of impervious surfaces, reducing the amount of phosphorous going to Lake Champlain by 10.5 kg per year. 

This project has been funded in part by the United States Environmental Protection Agency under assistance agreement (LC 00A007070) to NEIWPCC in partnership with the Lake Champlain Basin Program (LCBP).
NEIWPCC manages LCBP’s personnel, contract, grant, and budget tasks and
provides input on the program’s activities through a partnership with the LCBP. The contents of this website do not necessarily reflect the views and policies of NEIWPCC, the LCBP, or the EPA, nor does NEIWPCC, the LCBP or the EPA
endorse trade names or recommend the use of commercial products mentioned in this document.


Construction wrapped up in May of 2023.