(A) Sewer pipe shall be laid uniformly to line and grade so that the finished sewer will present a uniform bore.
(B) Set line and grade stakes for all gravity sewers at intervals not to exceed 25 feet. Batter boards shall be opposite each grade stake and a minimum of three boards shall be in place at all times during construction. The use of laser beam and target for alignment and grade is preferred in lieu of batter boards.
(C) Sewer pipe shall be laid progressively upgrade with bell upstream in a manner to form close, concentric joints with smooth bottom inverts.
(D) After the joint is made, sufficient bedding material shall be placed along each side of the pipe to prevent conditions that might tend to move the pipe off line or grade.
(E) Installed piping systems shall be temporarily plugged at the end of each day's work, or other interruption of progress on a given line. Plugging shall be adequate to prevent entry of animals into the pipe or the entrance or insertion of deleterious materials.
(F) Laterals shall be installed at a normal slope of one-quarter inch per foot. Minimum slope shall be one-eighth inch per foot. Install a mechanical plug at the end of each lateral and at the end of all sewer stubs. It shall be the responsibility of the contractor to install the later at a depth to allow each customer to connect to the end of the lateral.
(G) Install a treated two-by-four at the end of each sewer lateral for marking. It shall be the responsibility of the contractor to protect these markers.
(Ord. 2002-5-1, passed 5-14-02; Am. Ord. 2013-3-1, passed 3-28-13)