St. Joseph County, Indiana: septic system and well inspection at sale
Checked on November 13, 2026 against the official rule. Rule set by St. Joseph County Department of Health.
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
Septic inspection only inside the St. Joseph Aquifer System, and only if the property has not been transferred or had a new system in the last 15 years. A water test (coliform, E. coli, nitrate, arsenic) is required for every transfer in the county unless the property is on city water.
| Question | What the official text says |
|---|---|
| Triggered by | sale, transfer Source: in.gov |
| Deadline | Water test before closing; results given to buyer at least 3 days before closing; Property Transfer Application with water results (or proof of city utilities) to the Department within 5 days of closing Source: in.gov |
| Who arranges it | The seller is responsible for compliance; which party orders and pays for the inspection and test is a contract matter Source: in.gov |
| How long a report is valid | 6 months (inspections and tests good for 6 months if the sale does not go through) Source: in.gov |
| Exemptions |
Source: in.gov |
| Fee | No fee for the property transfer (county page) Source: in.gov |
| Who may inspect | official page (in.gov) Source: in.gov |
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: St. Joseph County Department of Health.
Checked on November 13, 2026: read in a web-archive copy of the official page (the live site was blocked from our connection).
Private wells in St. Joseph County
In 2015 about 76,774 of St. Joseph County’s 268,441 residents (29%) got their drinking water from a private well, by the USGS estimate. That is the 57th highest share of the 92 Indiana counties in the USGS table, and the 3rd highest number of private-well users.
This rule covers the well as well as the septic system. USGS models about 5,356 private-well users in St. Joseph County with arsenic above 10 µg/L, EPA’s limit for public water (2010 population base; 95% range 4,096 to 7,061), the 8th highest of 92 Indiana counties. It is a screening estimate, not a result for any one well.
Source: USGS county water use 2015 (Dieter et al., 2018); USGS domestic-well arsenic estimate (Ayotte, Medalie and Qi, 2017). Ranks count the Indiana counties in the USGS table (1 = highest).
Soils and septic systems here
USDA soil surveys rate 95% of St. Joseph County’s rated land “very limited” for a conventional septic drain field, 4% “somewhat limited” and 1% “not limited”, the 59th highest “very limited” share of 92 Indiana counties with survey data. The most common limits: slow percolation (dense or clay soil) on 70%; a high water table (saturated soil near the surface) on 60%; fast seepage below the field (risk to groundwater) on 56%.
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.
Nearest other sale-time rules
Buying or selling near a county line? These are the closest other local rules in our census to St. Joseph County.
| Rule | State | Distance | Covers | Checked |
|---|---|---|---|---|
| Ottawa County | Michigan | about 92 miles | Septic system and well | November 9, 2026 |
| Ingham County | Michigan | about 115 miles | Septic system and well | November 9, 2026 |
| Washtenaw County | Michigan | about 134 miles | Septic system and well | November 9, 2026 |
| Isabella County and Secord Township | Michigan | about 164 miles | Septic system and well | November 9, 2026 |
| Macomb County | Michigan | about 182 miles | Septic system and well | 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.