Stormwater Management 

  1. Tim Schutzman

    Waterworks Coordinator
    Phone: 724-776-4806 x1163

Concerns or Complaints
Direct all stormwater complaints or concerns to the Cranberry Township Public Works Department, 724-776-4806 x 1500.

The storm sewer system consists of approximately 196.8 miles of pipe that range in size from eight to 15 inches in diameter. The system transmits rainwater runoff from streets, sidewalks and buildings to our local streams, preventing flooding during heavy rains. Water flows into “catch basins” (storm drains) located along the street, through storm sewer pipes and local streams. 

This water is not treated at the Waste Water Pollution Control Plant, so it’s important not to dump chemicals or throw trash in the street or storm drains.  

Keeping our storm drains clean and clear!

Thanks to Haine Middle School Purpose students, Teachers, Parents for making this stencil program a success! Community involvement in storm water programs is part of Cranberry Township’s Municipal Separate Storm Sewer Systems (MS4) permit requirements through the Pennsylvania Department of Environmental Protection (DEP).

Pictured: (top) 5th Graders; (below) 6th Graders

It’s our good fortune to partner with Allison Stebbins, John Schmidt and the Haine Middle School Purpose Students to raise awareness of the importance keeping trash out of the storm drains through our stencil program.  

This year the Township was pleased to work with the 5th grade Purpose Students and stencil storm sewer basins in the Creekwood Commons and Creekwood neighborhoods in the morning session.  

During the afternoon session we partnered with the 6th grade Purpose Students to stencil storm sewer basins within the Bellevue Park neighborhood. 

Sanitary Sewer System

This system uses a network of pipes to collect sewage from homes and businesses and channels wastewater into the Township’s pollution control plant before releasing it, after treatment, into Brush Creek. These conduits are fully enclosed and buried underground. Customers of the Township’s sanitary sewer service pay according to their volume of use. The system’s primary purpose is to protect public health. 

Stormwater Runoff System

This system collects rainwater runoff and directs it into local streams without putting it through the sewage treatment plant. Parts of this system are open to the surface and no one is charged for its use. The primary role of the stormwater system is to protect property against flooding and water damage. 

Both the sanitary and stormwater sewer systems use a combination of private and public components. The design and construction standards are specified in the Uniform Construction Code of the Township Code of Ordinances and prior Township approval is required for all development plans. Pennsylvania Dept. of Labor & Industry Uniform Construction Code

Stormwater Management

A growing awareness of just how vulnerable Pennsylvania’s waterways have become to damage from stormwater runoff has resulted in legislation requiring municipalities like Cranberry to obtain permits before discharging stormwater runoff into waterways like Brush Creek.  

The Township has a permit from the state of Pennsylvania to operate the municipal separate storm sewer system (MS4). These permits, valid for five years, require communities to put stormwater management programs in place that reduce the discharge of pollutants, educate the public, and protect local water quality.

Cranberry Township is required to develop and implement a Pollution Reduction Plan (PRP) under the National Pollutant Discharge Elimination System (NPDES) General Permit For Stormwater Discharges From Small Municipal Separate Storm Sewer System (MS4).


CulvertOpeningStormwater Management History

Before 2002, rainwater runoff issues were addressed separately for each new development in Cranberry. However, as the surface contours of the Township continued changing with new development, the need for a coordinated, global, and comprehensive approach to handling storm water became apparent. In 2002, Cranberry implemented a plan to deal with flooding, infiltration/inflow problems, detention, and related stormwater drainage concerns.

That stormwater management plan targets the accelerated runoff resulting from land development and prescribes the construction of various swales, culverts, catch basins and detention ponds, as well as other water-handling facilities to channel and stage the release of rainwater to prevent downstream flooding.

Maintenance Responsibility


The responsibility for maintaining these stormwater facilities is divided among homeowners, neighborhood associations, commercial property owners, the Township, and state authorities as follows: 

  • Roof and foundation drains These drains, along with the gutters, spouts and pipes which connect them to the community’s storm sewer system, are the homeowner’s responsibility. 
  • Driveway pipes and culverts These are typically the homeowner’s responsibility.
  • Drainage ditches These are generally the responsibility of the homeowners association unless the ditch is specifically designated as a public or municipal drainage easement. 
  • Pipes and culverts underneath roadways The owner of the road assumes responsibility for these facilities. On private roads, or on newer plans where the roads have not yet been accepted by the Township, it is the homeowners’ or developer’s responsibility. On public roads, it is the responsibility of either the Township or the State. 
  • Clearing debris and erosion along stream channels Removing debris from local streams to keep them flowing in their channels is generally the responsibility of the land owners whose property abuts or is traversed by that stream. Note, however, that repair of erosion on large streams, such as building channel walls, may require a state permit. 
  • Catch basins The owner of the road along which catch basins are situated is responsible for maintaining them. That could be either the Township, PennDOT, the plan developer, or the owners of a private roadway or parking lot where basins are installed. 
  • Detention facilities Detention ponds in residential plans are typically the responsibility of the neighborhood’s homeowners association. Detention facilities in non-residential areas are normally the responsibility of the private establishments they serve. Developers are typically responsible for detention pond maintenance in newly developing plans until they are turned over to the homeowners association.