Direct answer
Conventional gravity, mound (for high-water-table sites), drip irrigation, and chambered. Cincinnati area uses mostly conventional + chambered for new builds. Mound systems are required where perc rates fail standard testing.
Authoritative sources
- US EPA SepticSmart ↗
EPA-recommended pumping schedules and inspection cadence for residential septic systems.
- Hamilton County Public Health ↗
County health department oversight of septic permits and inspections in Hamilton County, OH.
- Warren County Combined Health District ↗
Permit authority for septic installation and replacement in Warren County, OH.
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