Bloomington
Study Description:

The district is conducting a current water quality study on the Anderson chain of lakes which includes Southwest Anderson Lake, Southeast Anderson Lake, and Northwest Anderson Lake. In 2005, the watershed district completed a water quality study for the Anderson Lakes. At that time, the water quality study identified curly-leaf pondweed, an aquatic invasive species, as a threat to lake health and conducted management activities.
Because it’s been over 10 years since the district completed a management activity on these lakes, the district’s board of managers have approved a scope of work to assess the status of current lake health and identify protection and management actions as needed. This study will look at:
- Historical in-lake data i.e. lake nutrient levels, aquatic plant populations, fisheries, and lake levels
- An analysis of upland habitat and land-use
- Reevaluation of lake goals and management techniques
Study Updates:
At the May 20th, 2026, board meeting the NMCWD Board of Managers accepted the final report: Anderson Lake Protection Strategy.
At the June 3rd, 2026, board workshop the NMCWD Board of Managers ordered a herbicide treatment project to manage aquatic invasive species (AIS) to be applied in fall 2026, dependent on permit approval by the Minnesota Department of Natural Resources.
Notice of Nine Mile Creek Watershed District Public Hearings-Water Control Structure Reconstruction Project: Notice is hereby given that the Nine Mile Creek Watershed District Board of Managers of the will hold a public hearing at 5:30 p.m. on Wednesday, August 5, 2026, at the NMCWD office, 12800 Gerard Drive, Eden Prairie, 55346, as part of a scheduled workshop. The NMCWD board will receive comments on the proposed reconstruction of a water-control structure between Southeast Anderson Lake in Bloomington and Southwest Anderson Lake in Eden Prairie. After the hearing, the board will consider ordering the project. The $522,000 estimated cost for the project would be funded through a levy on all property within the watershed.
Past Studies:
In response to the study, the district completed the following water quality improvement projects:
- Anderson Lakes Water Quality Study (2005)
- 2008 Southwest and Northwest Anderson lakes drawdown
- 2012 Southwest Anderson Lake alum treatment
- 2008-2013 Southeast Anderson Lake herbicide treatments
- Water Quality Monitoring Report 2024:
- Water Quality Study Scope of Work (2025)
Outreach:
Past Community Meetings
- On February 11, 2026, the watershed district held an informal public meeting for Southeast, Southwest and Northwest Anderson Lakes. The presentation from that meeting is linked below.
Anderson Lakes Chain Public Meeting #2 February 11, 2026
- On August 19th, 2025, the watershed district held an informal public meeting for Southeast, Southwest and Northwest Anderson Lakes. The presentation from that meeting is linked below.
Anderson Lakes Chain Public Meeting #1 August 19, 2025 presentation
- On September 17th, 2024, the watershed district held a community meeting with the surrounding lake shore owners on Southeast Anderson Lake. At the meeting, staff from the watershed district gave a short presentation on lake health and past projects. There was also an opportunity for the attendees to voice concerns they have about the lake which helped inform the areas of focus within the current water quality study’s scope.
Questions?
Contact Jordan Wein, Water Resources Project Manager, at 952-800-8307 or jwein@ninemilecreek.org