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Township of Londonderry, PA
Dauphin County
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[Ord. 2010-5, 12/6/2010, § 1301]
Any drain (including indoor drains and sinks) or conveyance, whether on the surface or underground, that allows any nonstormwater discharge, including sewage, process wastewater, and wash water, to enter the municipality's separate storm sewer system or waters of the Commonwealth is prohibited.
Any drain or conveyance connected from a commercial or industrial land use to the municipality's separate storm sewer system, which has not been documented in plans, maps, or equivalent records, and approved by the municipality, is prohibited.
No person shall allow, or cause to allow, discharges into the municipality's separate storm sewer system or into surface waters of the Commonwealth that are not composed entirely of stormwater, except: (1) as provided in § 150.4 below; and (2) discharges allowed under a state or federal permit.
The following discharges are authorized unless they are determined to be significant contributors to pollution to the waters of the Commonwealth:
Discharges from firefighting activities
Potable water, sources including dechlorinated waterline and fire hydrant flushings
Irrigation drainage
Air-conditioning condensate
Water from crawl space pumps
Pavement wash waters 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
Flows from riparian habitats and wetlands
Uncontaminated water from foundations or from footing drains
Lawn watering
Dechlorinated swimming pool discharges
Uncontaminated groundwater
Water from individual residential car washing
Routine external building washdown (which does not use detergents or other compounds)
In the event that the municipality or PADEP determines that any of the discharges identified in subsection § 150.4 significantly contribute to pollution of waters of the Commonwealth, or is so notified by PADEP, the municipality will notify the responsible person(s) to cease the discharge.
Upon notice provided by the municipality or PADEP under § 150.5, the discharger will have a reasonable time, as determined by the municipality or PADEP, to cease the discharge, consistent with the degree of pollution caused by the discharge.
Nothing in this Section shall affect a discharger's responsibilities under Commonwealth law.
[Ord. 2010-5, 12/6/2010, § 1302]
Roof drains and sump pumps shall discharge to infiltration areas, vegetative BMPs, or pervious areas to the maximum extent practicable.
[Ord. 2010-5, 12/6/2010, § 1303]
No person shall modify, remove, fill, landscape, or alter any existing stormwater BMP, facilities, areas, or structures unless it is part of an approved maintenance program, without the written approval of the municipality.
No person shall place any structure, fill, landscaping, or vegetation into a stormwater BMP, facilities, areas, structures, or within a drainage easement which would limit or alter the functioning of the BMP without the written approval of the municipality.