Committed to providing
cost-effective, reliable, and
high quality sewer services
for the Gallatin Canyon. 

News & Announcements

The Gallatin Canyon Sewer Project’s Preliminary Environmental Assessment and official public comment period are now open.


The Gallatin Canyon County Water and Sewer District (GCCWSD) will hold a public meeting on May 11th, 2022, at 5pm at the BSCWSD Office and via Zoom for the primary purpose of obtaining comments regarding the environmental review record for the proposed Gallatin Canyon Sewer project, as required for the Montana Coal Endowment Program grant application.


At the public hearing the proposed project will be explained, including the purpose and proposed area of the project, activities, budget, possible sources of funding, and any costs that may result for local citizens as a result of the project.  All interested persons will be given the opportunity to ask questions and express opinions regarding the proposed project and any environmental impacts. Comments may be given orally at the meeting or submitted in writing to before May 16th, 2022, at noon.


A revised Environmental Assessment will be presented for Board adoption at a public meeting held May 18th, 2022, at 10:30am.


Click for the Preliminary Environmental Assessment (EA), Preliminary Engineering Report (PER), and Feasibility Study (FS). Hard copies of these documents are available at the BSCWSD office starting April 25th, 2022, and will also be available at the public meeting. 

​We want to hear from you! Take our Project Interest Survey here.​

Meetings & Agendas

Meetings are held at the Big Sky County Water Sewer District (BSCWSD) Board Room &/or via Zoom
Location: 561 Little Coyote Rd, Big Sky, MT

Preview upcoming meeting agendas and past meeting minutes here.


Project Overview

The Gallatin Canyon County Water and Sewer District (GCCWSD) proposes nearly five miles of sewer collection main along Highway 191 and throughout the Canyon Area corridor. Wastewater would be collected and conveyed largely by gravity to a lift station, where it would be treated at the soon-to-be upgraded Membrane Bioreactor facility. Treated effluent would be conveyed by gravity back to the Canyon Area for disposal via groundwater infiltration or as irrigation reuse. The disposal and reuse main would extend along the entire corridor to facilitate disposal at several locations, while also serving as potential irrigation water for existing and future development. 

Details about the proposed project can be found in the Preliminary Engineering Report.

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Fundamental Needs
  • Infrastructure to support workforce housing that is currently extremely lacking.

  • Retiring septic systems that present notable human health risks and detrimental nutrient loading to the Gallatin River.

  • Addressing current disposal limitations and operational risks associated with lack of disposal redundancy.


Provide central sewer to the Gallatin Canyon corridor in order to protect the Gallatin River water quality and public health by reducing septic wastewater loading to the aquifer while facilitating higher density workforce housing and reducing resource intensive sprawl.

  • June 2019 – $12 Million BSRAD Funding

  • May 2020 – Feasibility Study

  • July 2020 – 1% for Infrastructure

  • Dec. 2020 – District formed

  • July 2021 – PER & ARPA Funding

  • Sept. 2021 – $2M ARPA Grant

  • Oct. 2021 – $750K ARPA Grant

  • Apr./May 2022 – ARPA, RRGL and MCEP grant applications and MCEP Environmental Assessment

  • 2022 to 2026 Outreach, phasing plans, permitting, design, and construction