Building sewer construction shall meet the pertinent requirements of the Minnesota State Building Code, which is those chapters of Minn. Rules referenced in Minn. Rules part 1300.0050, and the Minnesota Plumbing Code, Minn. Rules Ch. 4714. The applicant shall notify the City Clerk when the building sewer and connection is ready for inspection. The connection shall be made under the supervision of the Building Official or the Building Official's representative, if the City has adopted the State Building Code. If the City has not adopted the State Building Code, the Utilities Superintendent shall perform the inspection. If the City does not have a Utilities Superintendent, an installer licensed under § 51.64 shall certify that the building sewer and connection comply with the State Building Code. No backfill shall be placed until the work has been inspected and approved, or until the certification has been received.