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NOTICE: PhillyWatersheds.org has been archived.

The archive will be available at http://archive.phillywatersheds.org for approximately one year (through the end of 2020). If you use or are responsible for content here that is not yet available elsewhere, please contact the PWD Digital Team.

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Developer's Guide to Stormwater Management

New development and redevelopment that disturbs more than 15,000 square feet of earth is required to manage the first inch of stormwater runoff generated by the site.

Use these resources to learn more about stormwater management for development.

PWD Plan Review Page
Use this page to learn more about the development review process and submit an Existing Resource and Site Analysis (ERSA) online.

City of Philadelphia Stormwater Management Guidance Manual
This is a comprehensive guide to assist developers in meeting the Philadelphia Stormwater Regulations.

Stormwater Management Regulations
Stormwater Management rules from the Philadelphia Code, Section 14-1603.1.