Stormwater

Stormwater runoff is generated when precipitation from rain and snowmelt flows over land or impervious surfaces and does not percolate into the ground. As the runoff flows over the land or impervious surfaces (paved streets, parking lots, and building rooftops), it accumulates debris, chemicals, sediment or other pollutants that could adversely affect water quality if the runoff is discharged untreated. The primary method to control stormwater discharges is the use of best management practices (BMPs).

Municipal Separate Storm Sewer Systems (MS4)
As part of the Clean Water Act, the U.S. Environmental Protectionphoto of Valley Center Park basin Agency (US EPA) has developed stormwater management regulations to improve water quality. The Township is required to apply for a National Pollutant Discharge Elimination System (NPDES) permit for its Municipal Separate Storm Sewer System (MS4), which is administered by the Pennsylvania Department of Environmental Protection.  Any municipality with a population of at least 5,000, including counties, must comply with the program.

The MS4 program is designed to literally "manage" stormwater, both by protecting storm water quality and by preventing high volumes of runoff from causing flooding in developed areas. The Township must also track the progress towards the goals of the permit and report  progress to the PA DEP on an annual basis.  

Lower Moreland is located within three distinct watersheds: Pennypack Creek, Neshaminy Creek, and Poquessing Creek. Per Act 167, the Township has adopted new ordinances to meet the stormwater requirements set forth by DEP.


Illicit Discharge

An illicit discharge occurs when any material other than stormwater is improperly disposed of, spilled, emitted, or released into the stormwater drainage system. This system encompasses streets, ditches, catch basins, yard inlets, lakes, and streams. Illicit discharges contribute to water pollution by introducing harmful substances directly into creeks, streams, ponds, and lakes. Understanding what constitutes an illicit discharge is crucial for preventing pollution and protecting our waterways.

Help keep our streams clean! If you observe an illicit discharge or notice any form of water pollution entering streams or stormwater inlets, please report it to the Township at [email protected] or call the Police Non-Emergency line at 215-947-3132


Examples of Illicit Discharges

  • Pouring paint into or near storm drains
  • Performing oil or antifreeze changes near storm structures
  • Washing vehicles where runoff flows into the stormwater drainage system
  • Cleaning dumpster pads and allowing the wastewater to enter storm drains