Where an adequate public sanitary sewer system is reasonably accessible in accordance with the 208/201 Facility Plan as determined by the County Health Department, public sanitary sewers and lateral connections shall be installed to adequately serve each proposed lot in accordance with the General Plan. Public sewer system extensions shall meet the requirements of the Ohio Environmental Protection Agency and the Trumbull County Sanitary Engineer's Department and/or Village Engineer or Board of Public Affairs. Combinations of sanitary sewers and storm sewers shall be prohibited. The connection of roof drains, foundation drains and other clean water (surface and/or ground) to the sanitary sewer is prohibited. Where a public sanitary sewer system is not reasonably accessible, the subdivider may provide an on-lot sewage disposal system in accordance with the requirements of the Ohio Environmental Protection Agency, the Trumbull County Board of Health and Section 1106.05 of these Regulations. A "Permit to Install" shall be acquired from the Ohio EPA prior to commencing construction.
(a) Design Criteria for Sanitary Sewers.
(1) Design factors. Sewer capacities shall be adequate to handle the anticipated maximum daily quantity of sewage and waste acceptable in accordance with Ohio Environmental Protection Agency and Trumbull County Sanitary Engineer and/or Village Engineer or Board of Public Affairs requirements.
(2) Size. The diameter of sewers proposed shall be no less than eight (8) inches except where approved by the Trumbull County Sanitary Engineer and/or Village Engineer or Board of Public Affairs.
(3) Minimum slope. All sewers shall be designed to give mean velocities, when flowing full, of not less than two (2.0) feet per second and not greater than ten (10.0) feet per second. All velocity and flow calculations shall be based on the Manning Formula using an "n" value of 0.013.
(4) Alignment. All sewers shall be laid with straight alignment between manholes, unless otherwise directed or approved by the County Sanitary Engineer and/or Village Engineer or Board of Public Affairs.
(5) Manholes. Manholes shall be installed at the end of each line; at all changes in grade, size or alignment; at all intersections; and at distances not greater than four hundred (400) feet. The difference in elevation between any incoming sewer and the manhole invert shall not exceed twelve (12) inches except where required to match crowns. The use of drop manholes shall comply with standard engineering principles and practices and will require approval by the County Sanitary Engineer and/or Village Engineer or Board of Public Affairs.
(6) Sewerage location. When located in easements on private property, there shall be access to all manholes. A manhole shall be provided at each street crossing. End lines shall be extended to provide access from road right of way when possible.
(7) Service connections. All proposed lots shall have a six (6) inch lateral constructed to the edge of the right-of-way or easement.
(Ord. 27-2013. Passed 4-1-13.)