(A) Required. Where necessary in the opinion of the Sewer Department, the owner shall provide, at his or her expense, such preliminary treatment as may be necessary to:
(1) Reduce the B.O.D. 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 § 50.52 above; and/or
(3) Control the quantities and rates of discharge of the waters or wastes.
(B) Approval. Plans, specifications and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for approval of the Sewer Department and the Arizona State Department of Health Services. No construction of the facilities shall be commenced until the approvals are obtained in writing.
(C) Maintenance of facilities. Where preliminary treatment facilities are provided for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation by the owner at his or her expense.
(1986 Code, § 15-5-4)