Septic Systems in Kings County, CA

Regulations, costs, soil data & local providers

Pop. 152,486 ~7.5% on septic ~4,575 septic homes Well drained soil

Septic pumping in Kings County, California costs $400-$850 (avg $600). A new septic system installation costs $8,400-$16,800. USDA soil data rates 5.4% of county soils as suitable for septic absorption fields. Approximately 4,575 homes in this county use septic systems.

Septic System Costs in Kings County

ServiceLowAverageHigh
Pumping / Cleaning$400$600$850
Routine Inspection$300$450$650
Real Estate Inspection$550$800$1100
Minor Repair$1,050$1,500$7,350
Conventional Installation$8,400$12,000$16,800
Aerobic System Installation$15,750$22,500$31,500
Drainfield Replacement$8,400$12,000$16,800
Perc Test$1,250$1,800$2,500

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

Soil & Septic Suitability in Kings County

Drainage Class
Well drained
Hydrologic Group
D
Unique Soil Types
101
Avg Bedrock Depth
2.5 ft

Dominant Soil Types

Soil SeriesCoverageDrainageHydro Group
Delgado 378 Somewhat excessively drained D
Mercey 347 Well drained C
Kettleman 315 Well drained C
Grangeville 300 Somewhat poorly drained B/D
Nord 299 Well drained B

Septic Tank Absorption Field Suitability

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

Not Limited (Good)5.4%
Somewhat Limited8.8%
Very Limited85.9%

Overall rating: Very limited

Source: USDA NRCS Soil Survey Geographic Database (SSURGO)

Groundwater & Water Table in Kings County

Monitoring Wells
10
Avg Depth to Water
88.9 ft
Median Depth
82 ft
Shallowest Recorded
10.5 ft

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

Source: USGS National Water Information System. Based on 18 measurements from monitoring wells.

Septic Regulations & Permits in Kings County

State Regulatory Body
California State Water Resources Control Board
Inspection Required for Home Sale
Yes
Nitrogen Reduction Areas
Yes
Advanced Treatment Required
In designated areas

OWTS Policy (2012). Inspection required before property transfer.

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

Septic System FAQ for Kings County

How much does septic pumping cost in Kings County?
Septic pumping in Kings County, California typically costs between $400 and $850, with an average of $600. 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 Kings County?
A conventional septic system installation in Kings County typically costs $8,400-$16,800. An aerobic treatment unit (ATU) costs $15,750-$31,500. 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 Kings County?
Yes. Virtually all counties in California 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 Kings County health department for current requirements and fees.
What soil types are in Kings County and how do they affect septic systems?
Kings County has predominantly Delgado, Mercey, Kettleman soils. The dominant drainage class is Well drained with hydrologic group D. The USDA rates 5.4% of surveyed soils as "Not Limited" for septic absorption fields, 8.8% as "Somewhat Limited", and 85.9% as "Very Limited".
Is a septic inspection required when selling a home in Kings County?
Yes. California 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 $800. 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 Kings 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 California have mandatory pumping schedules — check with your local health department.
Can I install a conventional septic system in Kings County?
It depends on your specific site. USDA soil data shows that 85.9% of soils in Kings County are rated "Very Limited" for septic absorption fields, while only 5.4% 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 ($1250-$2500) and soil evaluation are required before the county will approve a system design.
How long does a septic system last in Kings County?
A well-maintained septic system in Kings 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 (Kings 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

Population152,486
Est. Septic Homes4,575
Avg Pumping Cost$600
Drainage ClassWell drained
Septic SuitabilityVery limited

Common Septic Services

Pumping: $400-$850
Inspection: $300-$650
Repair: $1,050-$7,350
Installation: $8,400-$16,800

Data last updated: 2026-04-13