Freeborn County, Minnesota: septic system inspection at sale
Checked on November 9, 2026 against the official rule. Rule set by Freeborn County.
General information, not legal advice. This is our summary of the official rule as we read it. The ordinance or code and the health department decide: confirm with them before you list, sign or close.
The rule
| Question | What the official text says |
|---|---|
| What is required | Compliance inspection when property is transferred (also at building permit) Source: greenstep.pca.state.mn.us |
| Triggered by | property transfer Source: pca.state.mn.us |
| How long a report is valid | State default: 3 years (existing system), 5 years (new/replacement); county text may differ Source: revisor.mn.gov |
| If the system fails | Owners with compliance issues get a varying window of time to bring the system into compliance Source: greenstep.pca.state.mn.us |
| Who may inspect | Minnesota Pollution Control Agency (MPCA) licensing of SSTS businesses. official list (webapp.pca.state.mn.us) Source: webapp.pca.state.mn.us |
This is our summary of the official rule as we read it. The ordinance or code and the health department decide: confirm with them before you list, sign or close. Rule set by: Freeborn County.
Checked on November 9, 2026: listed on the official state roster; the county's own text not read yet.
Septic systems in Freeborn County: the state’s count
MPCA counts 3,979 septic systems (SSTS) in Freeborn County in 2025, the 45th highest number of Minnesota’s 87 counties. Licensed inspectors and the county did 50 compliance inspections of existing systems that year: 1.3% of the county’s systems, against 2.11% statewide (the 55th highest share). The county issued 52 construction permits in 2025 and 2,240 from 2002 to 2025. MPCA’s table marks the county as requiring a compliance inspection at property transfer, which matches the rule on this page.
Source: MPCA, 2025 Subsurface Sewage Treatment Systems Annual Report (April 2026), Appendix A, as reported by each county; ranks among the 87 counties in the table (1 = highest). MPCA counts all compliance inspections of existing systems, whatever the trigger (property transfer, building permit and others).
Private wells in Freeborn County
In 2015 about 8,353 of Freeborn County’s 30,613 residents (27%) got their drinking water from a private well, by the USGS estimate. That is the 59th highest share of the 87 Minnesota counties in the USGS table, and the 44th highest number of private-well users.
As we read it, this rule covers the septic system, not the well.
Source: USGS county water use 2015 (Dieter et al., 2018). Ranks count the Minnesota counties in the USGS table (1 = highest).
Soils and septic systems here
USDA soil surveys rate 94% of Freeborn County’s rated land “very limited” for a conventional septic drain field, 6% “somewhat limited” and 0% “not limited”, the 55th highest “very limited” share of 85 Minnesota counties with survey data. The most common limits: slow percolation (dense or clay soil) on 93%; a high water table (saturated soil near the surface) on 92%; ponding on 20%.
Where soils are limited, inspections more often find drain fields that sit in seasonally wet soil, and replacement systems are often mounds or other engineered designs. A county-wide rating, not a test of one lot: a site evaluation decides. Source: USDA NRCS Soil Survey Geographic Database (SSURGO), via Soil Data Access, rating “ENG - Septic Tank Absorption Fields”, read November 15, 2026.
Certified labs nearest to Freeborn County for a well water test
Labs on the Minnesota certified drinking-water list that the list marks as taking samples from homeowners or outside clients, certified for coliform bacteria, nearest first. All of them are outside Freeborn County.
| Lab | Town | Distance | Certified on the list for |
|---|---|---|---|
| UC Laboratory | Janesville, MN | 34 miles | coliform bacteria, nitrate, arsenic (subcontracted) |
| Southeastern Minnesota Water Analysis Laboratory | Rochester, MN | 53 miles | coliform bacteria, nitrate, arsenic (subcontracted) |
| Fillmore SWCD Water Quality Laboratory | Preston, MN | 65 miles | coliform bacteria |
Source: MDH Accredited Labs in Minnesota Accepting Drinking Water Samples from Private Well Users (October 2026; read November 15, 2026). Straight-line distance from the centre of Freeborn County (the average of its Census ZIP-area points); “approx.” = lab placed at its ZIP centre. Call the lab first: lists do not say which household tests each lab takes or what it charges.
Nearest other sale-time rules
Buying or selling near a county line? These are the closest other local rules in our census to Freeborn County.
| Rule | State | Distance | Covers | Checked |
|---|---|---|---|---|
| Steele County | Minnesota | about 23 miles | Septic system | November 9, 2026 |
| Waseca County | Minnesota | about 24 miles | Septic system | November 9, 2026 |
| Faribault County | Minnesota | about 28 miles | Septic system | November 9, 2026 |
| Mower County | Minnesota | about 33 miles | Septic system | November 9, 2026 |
| Dodge County | Minnesota | about 37 miles | Septic system | November 9, 2026 |
Straight-line distance between county centres (the average of each county’s Census ZIP-area points). Townships, villages and health districts are placed at the centre of their county.