Section 22-216 Unusual waste subject to review, regulation and approval.

(a) Wastes which are unusual in composition, i.e., contain an extremely large amount of total suspended solids or BOD; are high in dissolved solids such as sodium chloride, calcium chloride, or sodium sulfate; or are in any other way unusual, shall be reviewed by the director, who will determine whether such wastes shall be prohibited from or may be admitted to the city sewers or shall be modified or treated before being admitted. Wastes which, in the opinion of the director, are unusual or highly variable in volume shall be subject to flow equalization or other forms of regulation.

(b) Any water or waste which, by interaction with other water or wastes in the public sewer system, releases obnoxious gases or develops color of undesirable intensity, or forms suspended solids in objectionable concentration, or creates any other condition deleterious to structures and treatment processes, shall be subject to control of the director.

(c) The admission into the public sewers of any water or waste (1) having a five-day biochemical oxygen demand greater than two hundred (200) mg/l; or (2) containing more than two hundred forty (240) mg/l of total suspended solids; or (3) having a COD greater than four hundred (400) mg/l; or (4) having an average daily flow or a maximum peak flow greater than allotted percentages of the total average wastewater flow or maximum peak flow in a sewer or to a treatment facility as allocated by the director; or (5) containing any quantity of substances having the characteristics described in Section 22-215 or Section 22-215.05, shall be subject to the review and approval of the director. Where necessary in the opinion of the director, the owner shall provide at his expense such preliminary treatment as may be necessary to (1) reduce the biochemical oxygen demand to less than two hundred (200) mg/l, the total suspended solids to less than two hundred forty (240) mg/l and the COD to less than four hundred (400) mg/l; or (2) control the quantities and rates of discharge of such waters or wastes; or (3) reduce objectionable characteristics or constituents to within the maximum limits provided for in Section 22-215 or Section 22-215.05, or meet applicable state or federal pretreatment standards. Plans, specifications, compliance schedules and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for the approval of the director, and no construction of such facilities shall be commenced until such approval is obtained in writing.