Union County septic services.

The Union County Health Department's supplement sets vertical separation to the seasonal water table at six inches with six inches of in-situ soil, noting in its own footnote that six inches is the minimum allowable amount. Operation permits run five years, aligned to periods beginning in a year ending in zero or five, and a permit fee left unpaid past 1 April of the following year is assessed to the property tax.

Proctor run (Superior High Quality Water, entire listed length); Spain Creek (Superior High Quality Water, entire listed length); Little Darby creek (Outstanding State Water (ecological), 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 water perching on a restrictive layer (48.2% of rated soils), followed by a water table close to the surface (35.2%).