Lake Washington Sanitary District
The Tri-Lakes Sanitary Sewer Project is a proposed project to construct a wastewater collection system for the residents adjacent to Madison, Duck Lakes, and Lake Ballantyne. The collection system would convey flow to an existing, central pumping station in Madison Lake, and be pumped to the City of Mankato wastewater treatment plant for treatment via a sanitary forcemain completed in 2009.

The Lake Washington Sanitary District has hired SEH to prepare the facilities plan, pursue funding, and facilitate informational meetings related to the annexation process, for the Tri-Lakes Sanitary Sewer System. As the project moves forward, updates and meeting notices will be posted here.

Public Project Documents: 

Minnesota State Register Notice of Intent — 289.76 KB

Facility Plan (Draft) — 10.23 MB

Full Annexation Petition — 8.46 MB

Study Area Overview — 971.46 KB

Sewage Treatment Systems Summary Maps — 1.69 MB

Frequently Asked Questions (FAQ) — 34.59 KB

Neighborhood Meeting Presentation - March 2, 2011 — 1.74 MB

Public Meeting Invitation - March 2, 2011 — 25.34 KB

Public Meeting Invitation - June 7, 2011 — 10.91 KB

Meeting Summaries - January 18 to February 14, 2011 — 75.69 KB

Official Proceedings of the Board of Commissioners - March 3, 2009 — 100.04 KB

Madison Lake Objection Letter - June 22, 2011  — 1.89 MB

Madison Lake Invitation to LWSSD Meeting - July 18, 2011 — 15.47 KB

Meeting with Madison Lake Mankato and Blue Earth County - July 25, 2011 — 260.77 KB

Tri-Lakes Annexation Update - July 29, 2011 — 31.53 KB

Tri-Lakes Annexation Update - October 17, 2011 — 14.81 KB