(A)   It is intended that this subchapter include provisions for prohibiting the discharge by any wastewater customer into a public sanitary sewer of substances which may endanger the public health and safety; or of unpolluted waters which do not require treatment and therefore reduce the effectiveness of the biological operations of a treatment facility.
   (B)   It is further understood that the biological and chemical operations which can be designed for wastewater treatment do, by their scientific nature, limit the types of constituents in wastewater which may be treated by facilities constructed and maintained within a reasonable cost to the public.  Consequently, the treatment facilities are designed for the primary purpose of treating domestic wastewater in sufficient manner to protect public health.
   Certain industrial wastewater constituents can be treated without interference at the wastewater facilities, but only in a limited quantity or concentration.  To ensure that discharges of industrial wastewater into the public sanitary sewer are within such quantity and concentration limits, reasonable and adequate regulations are provided in this subchapter.
(Ord., passed 7-28-83)