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Appendices

C. PWD Stormwater Regulations

C. PWD Stormwater Regulations

The Stormwater Regulations, presented in Appendix C, have been developed in accordance with the Philadelphia Code §14-704(3), and they consist of four major Post-Construction Stormwater Management (PCSM) Requirements: Water Quality, Channel Protection, Flood Control, and Public Health and Safety (PHS) Release Rate. In addition, all earth disturbance activity must comply with the Erosion and Sediment Control (E&S) requirements of the Pennsylvania Department of Environmental Protection, as specified in 25 Pa. Code §102.4.

The objectives of these requirements include:

  • Reduce pollution in runoff
  • Recharge the groundwater table and increase stream base flows
  • Restore more natural site hydrology
  • Reduce combined sewer overflows (CSOs)
  • Reduce the quantity, frequency and duration of CSOs
  • Protect stream channels and banks, fish habitat and infrastructure from erosion and sedimentation
  • Reduce or prevent flooding in areas downstream of development sites

Philadelphia Code Chapter 6: Stormwater