Septic Tank Inspectors in Idaho
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Cities in Idaho
Idaho Septic Regulations
Idaho septic systems are regulated by local health districts under the Idaho Department of Environmental Quality (DEQ). Permits are required for new installations and repairs. Time-of-transfer inspections are not mandated statewide but may be required by lenders or local health districts.
- Septic permits are issued by the local health district (CDHD for Ada County) before installation or major repair.
- A site evaluation including soil analysis and percolation test is required before permit approval.
- Idaho does not mandate a time-of-transfer septic inspection, but many lenders and FHA/VA loans require one.
- Pumping frequency depends on tank size and household size — typically every 3 to 5 years.
- Setback distances: 50 feet from wells, 100 feet from water sources, 5 feet from property lines.
- CDHD maintains records of permitted systems — request an as-built drawing before purchasing a property.
Source: Central District Health Department (CDHD) / Idaho DEQ