The regulations specified in this Wellhead Protection Ordinance shall apply to the unincorporated areas of Portage County that lie within the recharge areas for municipal water supply wells as a Groundwater Protection Overlay District and are in addition to the requirements in the underlying zoning district. If there is a conflict between this section and the Zoning Ordinance, the more restrictive provision shall apply.

The Groundwater Protection Overlay District is divided into three districts; District A, District B, and District C. All district boundaries are intended to end or begin at road centerlines, railways, surface water features, or tax parcel lines. The boundaries of the districts are shown upon maps of Portage County, being designated as the "Groundwater Protection Districts for Municipal Recharge Areas in Portage County" as adopted or amended by the County Board.