Any drain or conveyance, whether on the surface or subsurface,
that allows any nonstormwater discharge, including sewage, process
wastewater, and wash water, to enter a regulated MS4 or to enter the
surface waters of this commonwealth is prohibited.
No person shall allow, or cause to allow, discharges into a
regulated MS4, or discharges into waters of this commonwealth, which
are not composed entirely of stormwater, except:
The following discharges are authorized unless they are determined
to be significant contributors to pollution of a regulated MS4 or
to the waters of this commonwealth:
Discharges from potable water sources, including water line flushing
and fire hydrant flushing, if such discharges do not contain detectable
concentrations of total residual chlorine (TRC).
In the event that the Municipality or DEP determines that any
of the discharges identified in Section 61.49.3 significantly contribute
pollutants to a regulated MS4 or to the waters of this commonwealth,
the Municipality or DEP will notify the responsible person(s) to cease
the discharge.