Septic Systems in Sandoval County, NM

Regulations, costs, soil data & local providers

Pop. 148,834 ~13.5% on septic ~8,037 septic homes

Septic pumping in Sandoval County, New Mexico costs $300-$650 (avg $450). A new septic system installation costs $6,150-$12,300. Approximately 8,037 homes in this county use septic systems.

Septic System Costs in Sandoval County

ServiceLowAverageHigh
Pumping / Cleaning$300$450$650
Routine Inspection$250$350$500
Real Estate Inspection$400$600$850
Minor Repair$750$1,100$5,400
Conventional Installation$6,150$8,800$12,300
Aerobic System Installation$11,550$16,500$23,100
Drainfield Replacement$6,150$8,800$12,300
Perc Test$900$1,300$1,800

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

Groundwater & Water Table in Sandoval County

Monitoring Wells
35
Avg Depth to Water
221 ft
Median Depth
148.8 ft
Shallowest Recorded
11.9 ft

Water table depths in this county are generally favorable for conventional septic systems.

Source: USGS National Water Information System. Based on 549 measurements from monitoring wells.

Septic Regulations & Permits in Sandoval County

State Regulatory Body
New Mexico 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 Sandoval County health department for current permit requirements, fees, and approved system types.

Septic System FAQ for Sandoval County

How much does septic pumping cost in Sandoval County?
Septic pumping in Sandoval County, New Mexico 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 Sandoval County?
A conventional septic system installation in Sandoval County typically costs $6,150-$12,300. An aerobic treatment unit (ATU) costs $11,550-$23,100. Costs include the tank, drainfield, permits, and labor.
Do I need a permit for a septic system in Sandoval County?
Yes. Virtually all counties in New Mexico 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 Sandoval County health department for current requirements and fees.
What soil types are in Sandoval County and how do they affect septic systems?
Contact the county health department for soil evaluation requirements.
How often should I pump my septic tank in Sandoval 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. With approximately 8,037 septic systems in Sandoval County, there are many local providers offering regular pumping services.
How long does a septic system last in Sandoval County?
A well-maintained septic system in Sandoval 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. 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

Population148,834
Est. Septic Homes8,037
Avg Pumping Cost$450

Common Septic Services

Pumping: $300-$650
Inspection: $250-$500
Repair: $750-$5,400
Installation: $6,150-$12,300

Data last updated: 2026-04-13