(A) Connection.
(1) All installations shall be properly connected to an approved and functioning sanitary sewer system and in accordance with any and all design and construction manuals. Sewer services lines shall be tapped to sewer mains at the upper pipe limit and not at the flowline.
(2) Where city sanitary sewer is accessible within 300 feet of the final plat, the subdivider shall connect to the system and provide adequate lines and stubs to each lot. When city sanitary sewer is not accessible within 300 feet of the final plat, the subdivider shall make provision for a sanitary sewer supply and future connection agreement acceptable to the City Engineer.
(3) If the city creates a sanitary sewer extension district each benefiting property in accordance with state statutes will have a special assessment. Special assessments shall be computed on the basis of proportionate costs and benefits of necessary extensions including sanitary sewer lift stations. Assessments shall be made on an area basis of benefiting property.
(4) If system is not in place or cannot be developed, the developer must provide individual subsurface disposal systems where appropriate, with design taking into consideration site density, soil, slope and other conditions and obtains approval from the State Department of Environment and Energy. Subsurface or septic systems are not permissible on any lot created if the overall density of the subdivision is greater than one unit per 1.5 acres, if individual lots are smaller than one acre, if restricted by the State Department of Environment or Energy or any lot which has a property line which is within 300 feet of the public sanitary sewer system.
(5) If a sanitary sewer system is to be provided to an area within a six-year period, as indicated in an officially adopted document of the city, the county, the State Department of Health or other authorized agency, the city may require installation of a capped system or dry lines. Alternatively, the city may require a payment in lieu of the improvement, to be credited toward the extension and extension of the subdivision of a future sanitary sewer system.
(6) All proposals for new public sanitary sewer systems or extensions of existing systems shall be approved by the appropriate public agencies including the State Department of Environment and Energy and the city.
(7) The city’s final approval of the system, and if applicable the State Electrical Inspector for the lift station system, shall be obtained prior to issuance of building permit or final occupancy permits.
(8) The developer shall be responsible for the location of the water and sanitary sewer service lines so that the purchaser of the lot can locate them. If the purchaser cannot locate the water and sanitary sewer service lines, the developer shall be responsible for determining their location including all costs. The developer shall provide the city with an as-built drawing showing the location of all utility and service lines.
(B) Capacity.
(1) The sanitary sewer system shall be adequate to handle the necessary flow, based on complete development of the subdivision.
(2) Installation of sanitary sewer systems shall conform to community design standards of the State Department of Environment and Energy and those in use within the city.
(3) Sanitary sewer mains shall be a minimum diameter of eight inches or as required in a developer provided study as may be required by the City Engineer, the city’s Comprehensive Plan and/or the Citywide Sewer Study.
(4) Sanitary sewer manholes shall be a minimum of 48-inches in diameter and separation shall not be more than 350 feet and shall be placed at bends, main connections, end of mains and all service connections six inches in diameter and greater.
(5) All final plats shall include a certification from a registered Professional Engineer that the sanitary sewer system of the subdivision is designed and constructed in accordance with the requirements of this section; and all applicable standards of the State Department of Environment and Energy, to the best of his or her knowledge and belief.
(Ord. 23-09, passed 8-21-2023)