1. From three feet outside of the building or structure, where the soil is of sufficient density for a proper foundation, the piping shall conform to the adopted Uniform Plumbing Code.
2. All joints shall conform to the adopted Uniform Plumbing Code.
3. The sewer pipe shall be laid on a smooth bottom with a groove cut for the bell so that the entire length of the pipe has a uniform bearing on the ground. When the trench bottom is unstable, it shall be excavated six inches below grade and brought to grade with an approved granular material.
(Ord. 1466 - May. 17 Supp.)