Nitrate is a health concern in some private wells in Southeast Minnesota: This page provides private well test results for nitrate in Dodge, Fillmore, Goodhue, Houston, Mower, Olmsted, Wabasha, and Winona counties (referred to as Southeast Minnesota).

Learn more about this work plan and why it exists at Well Tested? Well Done SE Minnesota; see 'Background and Status of Work.


  • Nitrate SE MN (County)
  • Nitrate SE MN (Census tract)

Percent of private wells with nitrate level at or above 10mg/L in Southeast Minnnesota counties, 2016-2023

Nitrate can be found in private wells across southeast Minnesota and the rest of the state. Minnesota Department of Health recommends that you regularly inspect your well, test your water quality, and treat your water when necessary.

Data source: Southeast Minnesota Water Analysis Laboratory, 2016-2023

Display ID
Topic
Dataset
Subtopic
Year
Month
Geography
Geo ID
Geo Name
Variable
Category
Measure
Value
Upper CL
Lower CL
Count
Total Homes
Note
Label

    Percent of private wells with nitrate level at or above 10mg/L in Southeast Minnnesota census tracts, 2016-2023

    Nitrate can be found in private wells across southeast Minnesota and the rest of the state. Minnesota Department of Health recommends that you regularly inspect your well, test your water quality, and treat your water when necessary.

    Data source: Southeast Minnesota Water Analysis Laboratory, 2016-2023

    Display ID
    Topic
    Dataset
    Subtopic
    Year
    Month
    Geography
    Geo ID
    Geo Name
    Variable
    Category
    Measure
    Value
    Upper CL
    Lower CL
    Count
    Total Homes
    Note
    Label