SPC Water Resource Center SPC
Pennsylvania Stormwater Regulations

The federal Clean Water Act (CWA) prohibits the discharge of pollutants into waterways without the appropriate permits. Pennsylvania’s Stormwater Management Act (better known as Act 167), MS4 Program, Chapter 102 (Erosion and Sediment Control Requirements), and NPDES Permit Program for Stormwater Discharges Associated with Construction Activities are amongst the Commonwealth’s methods for meeting the runoff-related requirements of the Clean Water Act. – taken from http://www.stormwaterpa.org/how-to-apply-best-practices.html.

Photo

Where riparian buffers have been damaged or removed, restoration activities can reduce stream damage and improve water quality. Photo: New York Conservation Advisory Council

How PA Stormwater Regulations Work Together

Fitting these various regulations together is nicely explained at Stormwater PA.

In 2002, DEP released the "Comprehensive Stormwater Management Policy" to ensure consistency amongst the various stormwater policies.  Read the report here.

Additionally, DEP updated its model ordinance so that it can be used both for Act 167 and MS4- related activities.  Per DEP, This Model Ordinance will be used in the following ways:

As a template for developing municipal stormwater management ordinances in watershed stormwater management plans prepared under the Pennsylvania Stormwater Management Act (1978 Act 167);

As a model ordinance for enactment or amendment of ordinances by municipalities designated as urbanized under the federal NPDES Phase II rule (i.e. MS4 Municipalities);

And as a template by any other municipality engaged in preparation and enactment or amendment of a stormwater management ordinance.

Enactment of the Model Ordinance establishes municipal authority to administer, regulate, and enforce proper implementation and maintenance of stormwater management Best Management Practices (BMPs) and design standards such as the ones presented in the draft Pennsylvania Stormwater Best Management Practices Manual (Draft Manual).

Curb Cut

Curb bump-outs are an effective green infrastructure practice for
controlling stormwater in urban and suburban settings.

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 Policy & Regulations

 

Who We Are

Staff
Erin Kepple Adams

Pennsylvania Stormwater Regulations

State & Federal Water Laws
Federal Laws | Pennsylvania Code

Regulatory Agencies & Legislative Resources

 

Watershed Information and Regional Watershed Conservation Plans

GIS Data Sources

Green Infrastructure

 

Regional Stakeholders

Key Contacts

Tools

Grants & Funding Resources

Land Use/Land Cover
Allegheny | Armstrong | Beaver |
Bulter | Fayette | Greene | Indiana |
Lawrence | Washington |
Westmoreland

 

Water Resource Maps
MS4 Communities in the SPC Region
Act 167 Watersheds

Impaired Waterways by Source
Designated Uses in SPC Region
Total Maximum Daily Loads (TMDLs) for Impaired Waterways
Population Density
Bedrock Formations

 

Municipal Separate Stormwater System (MS4)

SPC Educational Resources

SPC Workshop Materials

Glossary

Stormwater Management & Best Management Practices

Free Educational Webinars and Online Training

Resources for Student Education

 

SWPA's Homeowner's Guide To Stormwater

Climate Change and Water Resources

Resources for Water Suppliers & Wastewater Managers

Additional Water
Quality Information

NEW! Quick Resource Guide to the MS4 Program

NEW! Quick Resource Guide for Winter Maintenance BMPs

Allegheny County   Phase 1 of Act 167 work for Allegheny County is currently being finalized (as of 12/2013)
Armstrong County  

Act 167 work was completed for Glade Run Watershed in 1991.  View the document here.

Beaver County  

Beaver County has completed Phase 1 of the Act 167 planning process.  View the document here.

Butler County  

Butler County has completed the entire Act 167 planning process.  View the finalized Phase 1 and Phase 2 documents as well as the model ordinance:

Phase 1 | Phase 2
Model Ordinance

Fayette County  

Fayette County has completed the entire Act 167 planning process.  View the finalized Phase 2 document (model ordinance included in Appendix B) here.

Greene County  

The Act 167 Planning Process has not yet been completed in Greene County.

Indiana County  

The Act 167 Planning Process has not yet been completed in Indiana County.

 

Lawrence County  

Lawrence County has completed the entire Act 167 planning process.  View the finalized Phase 1 and Phase 2 documents as well as the model ordinance:

Phase 1 [ phase 1 maps ] | Phase 2
| Model Ordinance |

Allegheny County  

Washington County has completed the entire Act 167 planning process.  View the finalized Phase 2 documents and model ordinance documents below: 

Phase 2

Plate 1: Base Map | Plate 2: Land Use
Plate 3: Future Growth | Plate 4: Soils
Plate 5: DEM | Plate 6: Geology
Plate 7: Problems | Plate 8: Flood Control
Plate 9: Floodplain | Plate 10: SWM Districts

 

Westmoreland County  

Westmoreland County has completed Phase 1 of the Act 167 planning process.  View the document here.