17.32.230 Sanitary sewage disposal – Generally.
1. Except as otherwise provided in this section, the subdivider shall provide, or have provided, a piped sanitary sewerage system to the property line of every lot in the subdivision. The sewerage system shall meet the minimum standards and requirements of the local health officer, the State Division of Environmental Health, and this chapter.
2. Septic tanks and/or sealed vaults will be approved only when an existing sanitary sewer system is more than one-half (1/2) mile from boundary of the subdivision and shall be disapproved in any case unless approved in writing by the local health officer and the State Division of Health. In order to determine the adequacy of the soil involved to properly absorb sewage effluent and to determine the minimum lot area required for such installations, an interpretive map based on the National Cooperative Soil Survey showing the suitability of the soil for septic tank fields or pits shall be submitted, along with the results of percolation tests. The results of this data will be reviewed by the local health officer and the State Division of Health, in addition to any other information available to them, for recommendation to the planning commission. The following requirements shall be met:
a. Land made, altered, or filled with non-earth materials within the last ten (10) years shall not be divided into building sites which are to be served by soil absorption waste disposal systems.
b. Each subdivided lot to be served by an on-site soil absorption sewage disposal system shall contain an adequate site for such system. An adequate site requires a minimum depth of eight feet (8') from the surface of the ground to impermeable bedrock, and a minimum depth of six feet (6') from the surface of the ground to the groundwater surface (based on annual high water level). Each site must also be at least one thousand five hundred feet (1,500') from any shallow water supply well and one hundred feet (100') from any stream or water course, and at least two hundred feet (200') from any major live stream; and at least ten feet (10') from any dwelling or property line.
c. Soils having a percolation rate slower than or faster than standards allowed by the local health officer or the State Division of Environmental Health shall not be divided into building sites to be served by soil absorption sewage disposal systems.
d. Land rated as having severe limitations for septic tank absorption fields as defined by the county soil survey, U.S. Department of Agriculture, Natural Resources Conservation Service shall not be divided into building sites to be serviced by soil absorption sewage disposal systems unless each such building site contains not less than twenty thousand (20,000) square feet of other soils rated suitable for building construction and installation of an on-site soils absorption sewage disposal system.
3. An applicant desiring to install soil absorption sewage disposal facilities on the soils having severe limitations, as determined in the preliminary plan review, shall: have additional on-site investigations made, including percolation tests; obtain the certification of a soils scientist that specific areas lying within these soils are suitable for the proposed soil absorption sewage disposal system; and meet local health officer and Utah State Division of Health standards and regulations. In addition, the local health officer shall find that the proposed corrective measures have overcome or will overcome the severe soil limitations.
4. Other applicable standards adopted by the city council and local and state health departments. (Ord. 2023-22 §1, renumbered, 2023; Ord. 2001-8, amended, 2001; Ord. 111 §1, amended, 1985; Prior code §12-107-7(H)(16). Formerly 17.32.240)