Stormwater Information

The information below explains MS4 and the Township's Stormwater Management Fee. Please click the links for specific information.

Stormwater Management Facilities are facilities which have been shown to be effective in helping to reduce the rate of runoff, reduce the volume of runoff and/or remove pollutants from stormwater runoff. They can also  help reduce your stormwater fee.  Use the links below for each type of SWMF or go to and use the search feature to find more information on how to reduce your stormwater runoff:

Stormwater Engineering Reports

The U.S. Army Corp of Engineers has prepared a Flood Risk Management Planning guide for the local watershed for the Township of O'Hara and Fox Chapel Borough.  Please click the links below to view the study and associated appendices.

The following are links to resources for those seeking more information on MS4's or assistance with implementing stormwater management programs or other permit requirements.