A. Use of sanitary sewers. In accordance with the standards and specifications of these and other applicable regulations, the subdivider shall install sanitary sewers whenever a sanitary sewer is reasonably accessible, as determined by the Planning Commission. If a public sanitary sewer is placed in a street or alley abutting any property, the owner thereof shall be required to connect to the sewer for the purpose of disposing of waste, and it shall be unlawful for any such owner or occupant to maintain upon any such property an individual sewage disposal system.
B. Use of septic tanks, etc. Whenever a sanitary sewer is not reasonably accessible, septic tanks or other unit disposal systems may be used, provided that such systems comply with the requirements of the State Department of Health and are not located within twenty (20) feet of the lot line of the lot on which the system is located. Where sanitary sewer systems are not reasonably accessible and will not become available for a period in excess of five (5) years, the applicant may install sewage systems as follows:
1. Medium-density residential districts. A central sewage system only; no individual disposal system will be permitted. Where plans exist for a public sewer system to be built, for a period in excess of five (5) years, the applicant shall install all sewer lines, lateral, and mains to be in permanent conformance with such plans and ready for connection to such public sewer main; and
2. Low-density residential districts. Individual disposal systems or central sewage systems may be used.
C. Design and approval of sewer improvements. All sanitary sewer improvements shall be designed by an engineer registered in the State and shall be approved by the City Council, the City Manager, the State Health Department, and other appropriate agencies. Sanitary sewer design shall be in accordance with the design criteria for sanitary sewers in this article. In no case shall the use of flexible PVC pipe or any rigid plastic pipe with a wall thickness and strength of less than ABA Standard Schedule 40 be allowed.
D. Correspondence with comprehensive plan. When a required or proposed improvement corresponds with a recommended improvement contained in the City's comprehensive plan, or other approved sanitary sewer report or document, the facility shall be designed in accordance with the plan or report.
E. City participation in excess cost. When an improvement required by the comprehensive plan or other approved sanitary sewer report or document exceeds the capacity needed to serve the proposed development, the City may participate in the excess cost of such facility in accordance with the City's utility extension policies.
F. System in low-and medium-density residential districts. In low-and medium- density residential districts, where a public sanitary sewage system is reasonably accessible but will become available within a reasonable time, not to exceed five (5) years, the developer may choose one (1) of the following alternatives:
1. Central sewage system. Maintenance cost to be assessed against each property benefitted. Where plans for future public sanitary sewage systems exist, the developer shall install the sewer lines, laterals, and mains to be in permanent conformance with such plans and ready for connection to such public sewer mains; or
2. Individual disposal systems. The developer shall install sanitary sewer lines, laterals, and mains from the street curb to a point in the subdivision boundary where a future connection with the public sewer main shall be made in addition to allowing the use of individual systems on each site. As a condition of building permit approval on each housing unit in such an area, sewer lines shall be laid from the house to the street line and a connection shall be available in the home to connect from the individual disposal system to the sewer system when the public sewers become available. Such sewer systems shall be capped until ready for use and shall conform to all plans for installation of the public sewer system, where such exists, and shall be ready for connection to such public sewer main.
G. Systems in high-density residential and nonresidential districts. Sewage collection and disposal systems in high-density residential and nonresidential districts shall connect with public sanitary sewage systems. Sewers shall be installed to serve each lot and to grades and sizes required by local officials and approving agencies. No individual disposal system or treatment plants or private or group disposal systems shall be permitted. Sanitary sewage facilities, including the installation of laterals in the right-of-way, shall be subject to the specifications, rules, regulations, and guidelines of the City and the State Health Department.
H. Individual disposal systems. If public sewer facilities are not available and individual disposal systems are proposed, minimum lot areas shall conform to the requirements of the zoning regulations, and percolation tests and test holes shall be made as directed by the City Building Official and the results submitted to the Health Department. The individual disposal system, including the size of the septic tanks and size of the tile fields or other secondary treatment devices, shall also be approved by the City Building Official and be in accordance with the State statutes.
(Code 1991, § 12-483)