Septic Systems in Bent County, CO

Regulations, costs, soil data & local providers

Pop. 5,650 ~19.6% on septic ~443 septic homes Well drained soil

Septic pumping in Bent County, Colorado costs $300-$650 (avg $450). A new septic system installation costs $6,550-$13,100. USDA soil data rates 15.7% of county soils as suitable for septic absorption fields. Approximately 443 homes in this county use septic systems.

Septic System Costs in Bent County

ServiceLowAverageHigh
Pumping / Cleaning$300$450$650
Routine Inspection$250$350$500
Real Estate Inspection$450$650$900
Minor Repair$800$1,150$5,750
Conventional Installation$6,550$9,350$13,100
Aerobic System Installation$12,300$17,550$24,550
Drainfield Replacement$6,550$9,350$13,100
Perc Test$1,000$1,400$1,950

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

Soil & Septic Suitability in Bent County

Drainage Class
Well drained
Hydrologic Group
C
Unique Soil Types
64
Avg Bedrock Depth
1.9 ft

Dominant Soil Types

Soil SeriesCoverageDrainageHydro Group
Manvel 753 Well drained B
Rocky Ford 433 Somewhat poorly drained C
Las 390 Poorly drained C/D
Bacid 370 Well drained C
Numa 370 Somewhat poorly drained C

Septic Tank Absorption Field Suitability

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

Not Limited (Good)15.7%
Somewhat Limited28%
Very Limited56.3%

Overall rating: Very limited

Source: USDA NRCS Soil Survey Geographic Database (SSURGO)

Groundwater & Water Table in Bent County

Monitoring Wells
25
Avg Depth to Water
9.6 ft
Median Depth
10.1 ft
Shallowest Recorded
0.9 ft Shallow Risk

Moderate water table depth. Some sites may require modified systems or mound systems.

Source: USGS National Water Information System. Based on 147 measurements from monitoring wells.

Septic Regulations & Permits in Bent County

State Regulatory Body
Colorado DPHE
Inspection Required for Home Sale
No / Varies
Nitrogen Reduction Areas
No
Advanced Treatment Required
In designated areas

Varies by county. Many counties have transfer-of-title inspection requirements.

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

Septic System FAQ for Bent County

How much does septic pumping cost in Bent County?
Septic pumping in Bent County, Colorado typically costs between $300 and $650, with an average of $450. 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 Bent County?
A conventional septic system installation in Bent County typically costs $6,550-$13,100. An aerobic treatment unit (ATU) costs $12,300-$24,550. 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 Bent County?
Yes. Virtually all counties in Colorado 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 Bent County health department for current requirements and fees.
What soil types are in Bent County and how do they affect septic systems?
Bent County has predominantly Manvel, Rocky Ford, Las soils. The dominant drainage class is Well drained with hydrologic group C. The USDA rates 15.7% of surveyed soils as "Not Limited" for septic absorption fields, 28% as "Somewhat Limited", and 56.3% as "Very Limited".
How often should I pump my septic tank in Bent 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 Colorado have mandatory pumping schedules — check with your local health department.
Does the water table in Bent County affect septic systems?
Yes. The average groundwater depth in Bent County is approximately 9.6 feet, based on USGS monitoring data from 25 wells. While this is sufficient for many conventional systems, sites with lower elevations or seasonal water table fluctuations may require alternative system designs. A site-specific evaluation is always recommended.
Can I install a conventional septic system in Bent County?
It depends on your specific site. USDA soil data shows that 56.3% of soils in Bent County are rated "Very Limited" for septic absorption fields, while only 15.7% 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 ($1000-$1950) and soil evaluation are required before the county will approve a system design.
How long does a septic system last in Bent County?
A well-maintained septic system in Bent 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 (Bent 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.

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Quick Facts

Population5,650
Est. Septic Homes443
Avg Pumping Cost$450
Drainage ClassWell drained
Septic SuitabilityVery limited

Common Septic Services

Pumping: $300-$650
Inspection: $250-$500
Repair: $800-$5,750
Installation: $6,550-$13,100

Data last updated: 2026-04-13