Septic Systems in Roseau County, MN

Regulations, costs, soil data & local providers

Pop. 15,331 ~24% on septic ~1,472 septic homes Poorly drained soil

Septic pumping in Roseau County, Minnesota costs $300-$550 (avg $400). A new septic system installation costs $5,600-$11,200. USDA soil data rates 0% of county soils as suitable for septic absorption fields. Approximately 1,472 homes in this county use septic systems.

Septic System Costs in Roseau County

ServiceLowAverageHigh
Pumping / Cleaning$300$400$550
Routine Inspection$200$300$400
Real Estate Inspection$400$550$750
Minor Repair$700$1,000$4,900
Conventional Installation$5,600$8,000$11,200
Aerobic System Installation$10,500$15,000$21,000
Drainfield Replacement$5,600$8,000$11,200
Perc Test$850$1,200$1,700

Cost estimates based on regional market data for Roseau County, Minnesota. Actual costs depend on system type, site conditions, and provider.

Soil & Septic Suitability in Roseau County

Drainage Class
Poorly drained
Hydrologic Group
A/D
Unique Soil Types
115

Dominant Soil Types

Soil SeriesCoverageDrainageHydro Group
Percy 931 Poorly drained B/D
Dora 505 Very poorly drained D
Rosewood 415 Poorly drained A/D
Grano 378 Poorly drained C/D
Markey 374 Very poorly drained A/D

Septic Tank Absorption Field Suitability

USDA NRCS rates soil suitability for septic absorption fields across this county:

Not Limited (Good)0%
Somewhat Limited0.2%
Very Limited99.8%

Overall rating: Very limited

Source: USDA NRCS Soil Survey Geographic Database (SSURGO)

Septic Regulations & Permits in Roseau County

State Regulatory Body
Minnesota Pollution Control Agency
Inspection Required for Home Sale
Yes
Nitrogen Reduction Areas
No
Advanced Treatment Required
In designated areas

ISTS (Individual Sewage Treatment System) standards. County-level compliance inspections.

Contact the Roseau County health department for current permit requirements, fees, and approved system types.

Septic System FAQ for Roseau County

How much does septic pumping cost in Roseau County?
Septic pumping in Roseau County, Minnesota typically costs between $300 and $550, with an average of $400. Costs vary by tank size (1,000-1,500 gallons is typical), ease of access, distance from the pumping company, and how full the tank is. Most homeowners should pump their tank every 3-5 years.
How much does a new septic system cost in Roseau County?
A conventional septic system installation in Roseau County typically costs $5,600-$11,200. An aerobic treatment unit (ATU) costs $10,500-$21,000. Given the predominantly poorly drained soils in this area, some sites may require alternative system types. Costs include the tank, drainfield, permits, and labor.
Do I need a permit for a septic system in Roseau County?
Yes. Virtually all counties in Minnesota require a permit before installing, repairing, or replacing a septic system. The permit process typically involves a soil evaluation or percolation test, system design by a licensed professional, application to the county health department, and one or more inspections during installation. Contact the Roseau County health department for current requirements and fees.
What soil types are in Roseau County and how do they affect septic systems?
Roseau County has predominantly Percy, Dora, Rosewood soils. The dominant drainage class is Poorly drained with hydrologic group A/D. The USDA rates 0% of surveyed soils as "Not Limited" for septic absorption fields, 0.2% as "Somewhat Limited", and 99.8% as "Very Limited".
Is a septic inspection required when selling a home in Roseau County?
Yes. Minnesota requires a septic system inspection as part of the property transfer process. This typically involves a certified inspector evaluating the tank, drainfield, and all system components. The inspection cost in this area averages $550. If the system fails inspection, repairs or replacement may be required before the sale can proceed.
How often should I pump my septic tank in Roseau County?
The EPA recommends pumping your septic tank every 3-5 years for a typical household. The exact frequency depends on tank size, household size, and water usage. A 1,000-gallon tank serving a family of 4 should generally be pumped every 3 years. Some counties in Minnesota have mandatory pumping schedules — check with your local health department.
Can I install a conventional septic system in Roseau County?
It depends on your specific site. USDA soil data shows that 99.8% of soils in Roseau County are rated "Very Limited" for septic absorption fields, while only 0% are "Not Limited." This means many properties will require alternative systems such as mound systems, pressure distribution systems, or aerobic treatment units. A percolation test ($850-$1700) and soil evaluation are required before the county will approve a system design.
How long does a septic system last in Roseau County?
A well-maintained septic system in Roseau County typically lasts 25-30 years, though some components may need attention sooner. The concrete septic tank itself can last 40+ years, while the drainfield — the most critical and expensive component — usually lasts 15-25 years depending on soil conditions (Roseau County has predominantly poorly drained soils). Regular pumping every 3-5 years and avoiding excess water usage are the two most effective ways to extend system life.

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Quick Facts

Population15,331
Est. Septic Homes1,472
Avg Pumping Cost$400
Drainage ClassPoorly drained
Septic SuitabilityVery limited

Common Septic Services

Pumping: $300-$550
Inspection: $200-$400
Repair: $700-$4,900
Installation: $5,600-$11,200

Data last updated: 2026-04-13