Direct answer
No — strictly forbidden by Ohio code and disastrous for the system. Stormwater and groundwater overwhelm the drain field. Route sump and downspouts to dry wells or daylight, never the septic.
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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