After the approval of the application, evidenced by the issuance of a permit, no change shall be made in the location of the sewer or the grade, materials, or other details from those described in the permit or as shown on the plans and specifications for which the permit was issued except with the written permission of the District, the Engineer, or other authorized representative. (§ 603, Ord. 497; as amended by § 2, Ord. 1470, eff. July 14, 2016)