When required by the city, the owner of any property conveying wastes from industrial and/or commercial property into the public sanitary sewer system shall install a suitable control manhole in the side sewer to facilitate observation, sampling, and measurement of said wastewater. Such manhole shall be in conformance with the requirements of the King County industrial waste program. (Ord. 5852 § 1, 2004; Ord. 5302 § 1, 1999; Ord. 5212 § 1 (Exh. I), 1999; Ord. 4241 § 2, 1987.)