Any drain or conveyance, whether on the surface or subsurface, that
allows any nonstormwater discharge, including sewage, process wastewater,
and wash water to enter the regulated small MS4 or to enter the waters
of the commonwealth is prohibited.
No person shall allow, or cause to allow, discharges into the regulated
small MS4 or surface waters of this commonwealth which are not composed
entirely of stormwater, except:
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 PADEP determines that any of the discharges identified in Subsection C significantly contribute to pollution of a regulated small MS4 or the waters of this commonwealth, the municipality or PADEP will notify the responsible person(s) to cease the discharge.
Roof drains and sump pumps shall discharge to infiltration or
vegetative BMPs and, to the maximum extent practicable, satisfy the
criteria for disconnected impervious areas (DIAs).
No person shall modify, remove, fill, landscape, or alter any SWM
BMPs, facilities, areas, or structures that were installed as a requirement
of this chapter unless it is part of an approved maintenance program
and written approval of the municipality has been obtained.
No person shall place any structure, fill, landscaping, or vegetation
into a stormwater facility or BMP or within a drainage easement which
would limit or alter the functioning of the stormwater facility or
BMP without the written approval of the municipality.