A. No person in the municipality shall allow, or cause to allow, stormwater discharges into the municipality's separate storm sewer system which are not composed entirely of stormwater, except: as provided in Subsection B below; and discharges allowed under a state or federal permit.
B. Discharges which may be allowed based on a finding by the municipality that the discharge(s) do not significantly contribute to pollution to surface waters of the commonwealth, are:
(1) Discharges from firefighting activities.
(2) Potable water sources including dechlorinated water line and fire hydrant flushings.
(3) Irrigation drainage.
(4) Routine external building washdown (which does not use detergents or other compounds).
(5) Air-conditioning condensate.
(6) Water from individual residential car washing.
(7) Spring water from crawl space pumps.
(8) Uncontaminated water from foundation or from footing drains.
(9) Flows from riparian habitats and wetlands.
(10) Lawn watering.
(11) Pavement washwaters where spills or leaks of toxic or hazardous materials have not occurred (unless all spill material has been removed) and where detergents are not used.
(12) Dechlorinated swimming pool discharges.
(13) Uncontaminated groundwater.
C. In the event that the municipality determines that any of the discharges identified in Subsection B significantly contribute to pollution of waters of the commonwealth, or is so notified by DEP, the municipality will notify the responsible person to cease the discharge.
D. Upon notice provided by the municipality under Subsection C, the discharger will have a reasonable time, as determined by the municipality, to cease the discharge consistent with the degree of pollution caused by the discharge.
E. Nothing in this section shall affect a discharger's responsibilities under state law.