(A) General. This overlay zone district is created to reflect exiting physical resource's advantages and limitations within the county. All areas identified as comprising this district has a common characteristic of wetness limitations. All areas designated on the zone district map have periodic high water tables, which can cause wet basements, seriously interfere with the operation of subsoil sewage disposal facilities, create frost heave related structural problems. These areas generally have a variety of drainage problem and may incur localized ponding problems.
(B) Conditions of use. In granting any permit the Zoning Administrator, with the approval of the Land Use Committee, may require:
(1) That basements be prohibited, but if permitted shall at least be constructed with footing drains and sump pumps or the area will be filled with an earthen material to a depth that will place the basement floor at least two feet above the highest level of the water table in the natural soil.
(a) That to determine the permeability of earthen fill after it is in place, the applicant shall submit results of at least percolation tests.
(b) Any other requirements necessary to protect the public health, safety or general welfare.
(2) That the sewage disposal seepage field will lie at least four feet above the highest level of the water table in the natural soil.
(3) Anchoring of water and sewer lines to resist flotation.
(4) Subsurface drain tiles or curtain drains.
(5) That drainage from the site shall be reviewed using the standard of the county subdivision regulations, § 92.032.
(C) Permitted and special uses. This Darwin-Karnak Overlay District provides development controls in addition to those required by the primary zoning district (Agricultural, Conservation, Residential, Business, Manufacturing) and shall be used in combination with those districts. Within the limits of the Wet Soils Overlay District, all requirements of the primary district apply to this section.
(1) All uses permitted in the primary zone district which do not require a basement or subsoil sewage disposal system are permitted.
(2) Any use requiring a basement or subsoil sewage disposal system shall be a special use.
(Ord. 2014-18, passed 4-16-2014)