Clark County, Ohio
Mad River Township is a township in Clark County, Ohio. Septic permits inside Mad River Township come from Mad River Township. 3 rules below are quoted from official sources and independently re-checked, most recently on November 10, 2026. Rules for unincorporated land are on the Clark County page.
Mad River Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Building work in the unincorporated area of Mad River Township, Clark County, Ohio.
“Building permits are required [...] in [...] the un-incorporated areas of Clark County.”
Land in Mad River Township, Clark County, Ohio, that is subject to Clark County zoning; the county identifies Mad River among the townships covered by Clark County Zoning.
“Clark County Zoning covers Bethel, Green, Harmony, Mad River, Madison, Moorefield, and Pleasant Townships.”
On-site sewage treatment systems serving land in Mad River Township, Clark County, Ohio; the Clark County Health Department serves Clark County residents and operates the household sewage treatment system program.
“The Household Sewage Treatment System Program ensures that septic systems are designed and installed under permit and follow state and local regulations.”
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Off-grid gear
Going off-grid in Mad River Township means bringing your own water and power. The kit we’d start with:
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