(A) General requirements. The applicant shall install sanitary sewer facilities in a manner prescribed by the town’s construction standards. All plans shall be designed according to the rules, regulations and standards of the town’s applicable ordinances and other appropriate state and federal agencies. In any case, the design shall meet or exceed the minimum standards described in the latest edition of Recommended Standards for Sewage Works, as published by the Health Education Service, Albany, New York. Plans shall be approved by the above agencies where required by those agencies.
(B) Sanitary sewerage system requirements. Where provided, sanitary sewerage facilities shall connect with public sanitary sewerage systems, and shall be installed to serve each lot and to grades and sizes required by the town’s approving officials. Sanitary sewerage facilities (including the installation of laterals in the right-of-way) shall be subject to the specifications, rules, regulations and guidelines of the town’s Sewer Use Ordinance and the state’s Department of Environmental Management.
(C) Selected design criteria.
(1) Alignment. All sewers shall be laid with a straight alignment between manholes, unless otherwise directed or approved by the Commission or its designated representative.
(2) Manhole location. Manholes shall be installed at the end of each line and at distances not greater than 400 feet for sewers eight inches in diameter and larger.
(3) Manholes. The difference in elevation between any incoming sewer and the manhole invert shall not exceed 12 inches where required to match crowns. The use of drop manholes will require approval by the Commission. The minimum inside diameter of the manholes shall be 48 inches; larger diameters are preferable for large diameter sewers. A minimum access diameter of 22 inches shall be provided. Inside drop manholes will require special consideration; however, in no case shall the minimum clear distance be less than that indicated above. The relationships between intersecting sewer lines shall meet the standards required by the Recommended Standards for Sewage Works.
(4) Sewerage locations. Sanitary sewers shall be located within street or alley rights-of-way unless topography dictates otherwise. When located in easements on private property, access to all manholes shall be provided. Where sewer lines in private easements cross public rights-of-way, a manhole shall be provided in such rights-of-way where possible. Imposed loading shall be considered at all manhole locations. Not less than six feet of cover shall be provided over top of pipe in street and alley rights-of-way and three feet in all other areas.
(5) Clean outs. Cleanouts will be permitted only for special conditions and shall not be substituted for manholes, nor installed at the end of laterals greater than 150 feet.
(6) Water supply interconnections. There shall be no physical connection between a potable water supply system (public or private) and a sewer that will permit the passage of any sewage or polluted water into the potable water system. Sewers shall be kept removed from water supply wells or other water supply sources and structures.
(7) Relation of sewers to water mains. A minimum horizontal distance of ten feet shall be maintained between parallel water and sewer lines. At points where sewers cross water mains, the sewer shall be constructed of cast iron pipe or encased in concrete for a distance of ten feet in each direction from the crossing, measured perpendicular to the water line. This will not be required when the water line is at least two feet above the sewer line.
(2004 Code, § 4-419)