12.10.180 Preliminary treatment.
(A) Required. Where necessary in the opinion of the city, the owner shall provide, at his expense, such preliminary treatment as may be necessary to:
(1) Reduce the BOD to three hundred (300) parts per million and the suspended solids to three hundred fifty (350) parts per million by weight.
(2) Control the quantities and rates of discharge of such waters or wastes.
(B) Approval. Plans and specifications and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for approval of the city and the engineering division of the Arizona State Board of Health. No construction of such facilities shall be commenced until such 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 expense. (1976 Code § 11-3-4)