The following connections are prohibited, except as provided in §
373-27B:
A. Any drain or conveyance, whether on the surface or subsurface, which
allows any nonstormwater discharge including sewage, process wastewater,
and wash water, to enter the separate storm sewer system, and any
connections to the storm drain system from indoor drains and sinks;
and
B. Any drain or conveyance connected from a commercial or industrial
land use to the storm sewer system which has not been documented in
plans, maps, or equivalent records, and approved by the municipality.