(A) Alignments. All sewers shall be laid with a straight alignment between manholes, unless otherwise directed or approved by the jurisdictional engineer.
(B) Manhole location. Manholes shall be installed at the end of each line and at distances not greater than 400 feet for sewers 18 inches in diameter and larger.
(C) Manholes.
(1) The difference in elevation between any incoming sewer and the manhole invert shall not exceed 12 inches where required to match crowns.
(2) The use of drop manholes requires approval by the jurisdictional engineer.
(3) The minimum inside diameter of the manholes shall conform to those specified by the jurisdictional engineer.
(4) The relationships between intersecting sewer lines shall meet the standards required by the jurisdictional engineer.
(D) Sewage locations.
(1) Sanitary sewers shall be located within street or alley rights-of-way unless topography dictates otherwise.
(2) When located in easements on private property, access shall be provided to all manholes.
(3) Where sewer lines in private easements cross public street or alley rights-of-way a manhole shall be provided in such rights-of-way where possible.
(4) Imposed loading shall be considered at all manhole locations.
(5) Not less than six feet of cover shall be provided over the top of pipe in street and alley rights- of-way or three feet in all other areas.
(E) Cleanouts. All cleanouts must be sealed to prevent groundwater, stormwater and the like from entering the system.
(F) Water supply interconnections. There shall be no physical connection between a public or private potable water supply system and a sewer. Sewers shall be kept removed from water supply wells or other water supply sources and structures.
(G) Relation of sewers to water mains.
(1) A minimum horizontal distance of ten feet shall be maintained between parallel water and sewer lines.
(2) 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.
(Ord. passed - -)