(a) If any waters or wastes are discharged or are proposed to be discharged to the public sewers, which waters contain the substances or possess the characteristics enumerated in § 21A-32, or which are in violation of the standards for pretreatment provided in 40 C.F.R. § 403, June 26, 1978 and any amendments thereto, and which in the judgment of the director of public works or public health authority may have a deleterious effect upon the waste water facilities, or receiving waters, or which otherwise create a hazard to life or constitute a public nuisance, the director of public works may:
(1) Reject the wastes;
(2) Require pretreatment to an acceptable condition for discharge to the public sewers;
(3) Require control over the quantities and rates of discharge; and/or
(4) Require payment to cover the added costs of handling and treating the wastes not covered by existing taxes or sewer charges, under the provisions of this chapter.
(b) If the director of public works permits the pretreatment or equalization of waste flows, the design and installation of the plants and equipment shall be subject to the review and approval of the director of public works, and subject to the requirements of all applicable codes, ordinances and laws.