Borough of Strasburg

Preservation and Progress

What is MS4?

Have you ever heard the term “MS4” and wondered what that is?  It stands for Municipal Separate Storm Sewer System.

A separate storm sewer system is a collection of structures, including retention basins, ditches, roadside inlets and underground pipes, designed to gather stormwater from built-up areas and discharge it, without treatment, into local streams and rivers. It’s called a separate system because it’s not connected to the sanitary sewer system which drains waste water from inside a home to a sewage treatment facility or a private septic system.

Take a few minutes to read this article or watch the video from Lancaster County PennState Extension to learn more.

Everyone can do their part to help keep our streams and rivers clean by keeping these structures free and clear of debris from trash, yard maintenance waste, animal waste, chemicals, pesticides, oil, sediment, and anything else that may potentially harm our environment.