Ross County septic services.

Ross County's subdivision regulations make the minimum lot area for an unsewered lot a soil question rather than a fixed number. For both minor and major subdivisions without access to public sewer or public water, minimum lot area is based on the results of a soil evaluation and a health district review performed under Ohio Administrative Code Chapter 3701-29. Frontage is fixed: 100 feet on a Class III road where there is no central sewer.

Beech fork (Superior High Quality Water, entire listed length); Compton creek (Superior High Quality Water, entire listed length); Middle Fork Salt creek (Superior High Quality Water, entire listed length). Ohio EPA's general permit for discharging household systems (OHK000004, Part II.C.2(e)) bars a new discharge to any of these, or to a tributary within one mile upstream. On those parcels the off-lot discharging route is closed and the system has to be a soil-absorption design, whatever the lot looks like.

The dominant constraint here is slope (38.0% of rated soils), followed by a highly permeable layer that may not filter effluent (13.0%).