(a) Required. It shall be unlawful to discharge into any natural outlet within the District or in any area under the jurisdiction of the District any sanitary sewage, industrial wastes, or other polluted waters except where suitable treatment has been provided in accordance with the provisions of this article. The admission into the public sewers of any waters or wastes with the following qualities shall be subject to review and approval by the Engineer:
(1) Having a five (5) day biochemical oxygen demand greater than 300 parts per million by weight;
(2) Containing more than 350 parts per million by weight of suspended solids;
(3) Containing any quantity of substances having the characteristics set forth in Section 6-5.305 of this article; or
(4) Having an average daily flow greater than two (2%) percent of the average daily sewage flow of the system.
(b) Construction. Where necessary in the opinion of the Engineer, the owner shall provide, at his expense, such preliminary treatment as may be necessary to:
(1) Reduce the biochemical oxygen demand to 300 parts per million and the suspended solids to 350 parts per million by weight;
(2) Reduce objectionable characteristics or constituents to within the maximum limits provided for in Section 6-5.305 of this article; or
(3) Control the quantities and rates of discharge of such waters or wastes.
Plans, specifications, and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for the approval of the Engineer, and no construction of such facilities shall be commenced until such approval is obtained in writing.
(c) Maintenance. Where preliminary treatment facilities are provided for any waters or wastes, such facilities shall be maintained continuously in satisfactory and effective operation by the owner at his expense. (§§ 202, 505, and 507, Ord. 497; as amended by § 2, Ord. 1470, eff. July 14, 2016)