Septic pumping in Renville County, North Dakota costs $250-$500 (avg $350). A new septic system installation costs $4,750-$9,500. USDA soil data rates 0% of county soils as suitable for septic absorption fields. Approximately 219 homes in this county use septic systems.
Septic System Costs in Renville County
| Service | Low | Average | High |
|---|---|---|---|
| Pumping / Cleaning | $250 | $350 | $500 |
| Routine Inspection | $200 | $250 | $350 |
| Real Estate Inspection | $300 | $450 | $650 |
| Minor Repair | $600 | $850 | $4,200 |
| Conventional Installation | $4,750 | $6,800 | $9,500 |
| Aerobic System Installation | $8,900 | $12,750 | $17,850 |
| Drainfield Replacement | $4,750 | $6,800 | $9,500 |
| Perc Test | $700 | $1,000 | $1,400 |
Cost estimates based on regional market data for Renville County, North Dakota. Actual costs depend on system type, site conditions, and provider.
Soil & Septic Suitability in Renville County
Drainage Class
Well drained
Hydrologic Group
B
Unique Soil Types
86
Dominant Soil Types
| Soil Series | Coverage | Drainage | Hydro Group |
|---|---|---|---|
| Barnes | 623 | Well drained | B |
| Buse | 373 | Well drained | B |
| Sioux | 342 | Excessively drained | A |
| Svea | 329 | Moderately well drained | B |
| Darnen | 317 | Well drained | B |
Septic Tank Absorption Field Suitability
USDA NRCS rates soil suitability for septic absorption fields across this county:
Overall rating: Very limited
Groundwater & Water Table in Renville County
Monitoring Wells
1
Avg Depth to Water
37.2 ft
Median Depth
37.1 ft
Shallowest Recorded
36.7 ft
Water table depths in this county are generally favorable for conventional septic systems.
Source: USGS National Water Information System. Based on 46 measurements from monitoring wells.
Septic Regulations & Permits in Renville County
State Regulatory Body
North Dakota Department of Health/Environment
Inspection Required for Home Sale
No / Varies
Nitrogen Reduction Areas
No
Advanced Treatment Required
No
Contact county health department for specific requirements.
Contact the Renville County health department for current permit requirements, fees, and approved system types.
Septic System FAQ for Renville County
How much does septic pumping cost in Renville County?
Septic pumping in Renville County, North Dakota typically costs between $250 and $500, with an average of $350. 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 Renville County?
A conventional septic system installation in Renville County typically costs $4,750-$9,500. An aerobic treatment unit (ATU) costs $8,900-$17,850. Given the predominantly well 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 Renville County?
Yes. Virtually all counties in North Dakota 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 Renville County health department for current requirements and fees.
What soil types are in Renville County and how do they affect septic systems?
Renville County has predominantly Barnes, Buse, Sioux soils. The dominant drainage class is Well drained with hydrologic group B. The USDA rates 0% of surveyed soils as "Not Limited" for septic absorption fields, 25.1% as "Somewhat Limited", and 74.9% as "Very Limited".
How often should I pump my septic tank in Renville 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 North Dakota have mandatory pumping schedules — check with your local health department.
Can I install a conventional septic system in Renville County?
It depends on your specific site. USDA soil data shows that 74.9% of soils in Renville 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 ($700-$1400) and soil evaluation are required before the county will approve a system design.
How long does a septic system last in Renville County?
A well-maintained septic system in Renville 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 (Renville County has predominantly well drained soils). Regular pumping every 3-5 years and avoiding excess water usage are the two most effective ways to extend system life.
Data last updated: 2026-04-13