Ohio Rev. Code § 3767.22
Section 3767.16 of the Revised Code does not prohibit the deposit of the contents of privy vaults and catch basins into trenches or pits not less than three feet deep excavated in a lot, field, or meadow, with the consent of the owner, outside of the limits of a municipal corporation and not less than thirty rods distant from a dwelling, well or spring of water, lake, bay, pond, canal, run, creek, brook or stream of water, public road or highway, provided that such contents so deposited are forthwith covered with at least twelve inches of dry earth; nor prohibit the deposit of such contents in furrows, as specified for such trenches or pits, to be forthwith covered with dry earth by plowing or otherwise, and with the consent of the owner or occupant of the land in which such furrows are plowed.
The board of health of a city or a general health district may allow the contents of privy vaults and catch basins to be deposited within corporate limits into such trenches, pits, or furrows.
R.C. §3767.22