UPC section 206.0 is modified by amending the following definition:
Drainage System - Includes all the piping within public or private premises that conveys sewage, rainwater, or other liquid wastes to a legal point of disposal, but does not include the mains of a public sewer system or a public sewage treatment or disposal plant.
Minn. R. agency 222, ch. 4714, pt. 4714.0206