MAIN OFFICE LOCATION: 253 West Fourth Street, Williamsport, PA 17701 - 570-323-6148


Stormwater Information

In August of 2015, the City of Williamsport amended the Articles of Incorporation for the Williamsport Sanitary Authority to allow for the inclusion of stormwater projects. Over the past year and a half, the City has been working collaboratively with the Authority to develop the framework for a proactive stormwater management plan for City consideration.

What is Stormwater?

Stormwater includes all of the surface flow, or runoff, from all properties that occurs from rain or snowmelt events.  This runoff, which contains pollutants, flows over land or streets to drainage collection systems such as curb inlets, yard inlets, pipes, ditches, culverts, swales, and retention/detention facilities – and at times this infrastructure is not sufficient to manage the significant amounts of flow coming into the system.

What is Stormwater Management?

Stormwater Management is a community-wide service to effectively manage the amount (quantity) and cleanliness (quality) of stormwater runoff within the City of Williamsport, and to ensure that a plan is developed to design, build and maintain sufficient stormwater infrastructure.

All residents of the City benefit from properly operated and maintained stormwater and drainage infrastructure.  Minimizing localized flooding in public streets, back yards and basements are just some of the benefits of a healthy stormwater infrastructure system. Benefits to non-residential properties may include site sustainability, reduced drainage issues, and good neighbor/positive public relations.

Additional information can be found at websites linked below.


Lycoming County – Municipal Separate storm Sewer System (MS4)

Brochure – Only Rain Down the Storm Drain!

EPA Stormwater

Chesapeake Bay Foundation

StormwaterPA – MS4 Program

Penn State Extension Program on Stormwater

“Make Your Home the Solution to Stormwater Pollution” Brochure

Water Efficient Landscaping

“Storm Water Pollution Found in Your Area!” Door Hanger

“Kids storm Water Stickers”

“10 Things That You Can Do to Prevent Storm Water Runoff Pollution”

“Take the storm Water Runoff Challenge” Placemat

“Water Conservation Throughout the Home”