(A) Storm sewer inlets and catch basins shall be of the size and type shown on the plans and as detailed herein. Structures shall be installed level and true to grade.
(B) Excavation and backfill for inlets and catch basins shall be in accordance with this subchapter. All structures shall be placed on a leveling surface consisting of a minimum of four inches of stone or “B” borrow.
(C) Where structures are placed in pavement areas or areas which may be paved in the future, the height of the casting shall be determined by the depth of pavement.
(D) Inlet and outlet pipes shall extend through the structure walls a sufficient distance to allow for connections to the storm sewer system. Pipes shall be flush with the interior wall face and mortared into place so as to prevent leakage around their outlet surfaces.
(2004 Code, Art. IV, § B, part 3)