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Radnor Township is in the process of updating its stormwater ordinance. The current ordinance continues to allow an increase in the volume of stormwater runoff that results from new development and fails to require use of new and innovative stormwater designs to reduce runoff from redevelopment projects. The Commissioners have a great opportunity to fix these inadequacies of the past when they update their ordinance. 

Radnor has recently started to circulate a set of sample edits for review and input from township committees, the Delaware Riverkeeper Network has obtained a copy and below you will find our comments on the proposal.  The suggested edits are a good step forward, but miss some key opportunities, and the key focus of volume reduction.  To see DRN’s comments and expert report:
If you want to write a comment to urge a stronger ordinance that better protect Radnor’s communities and environments see our action alert.

Since new development can increase the volume of stormwater, scientific experts and both federal and state agencies support preventing and reducing the volume of stormwater runoff as among the most effective strategies for protecting communities from flooding. By reducing runoff volume, these strategies prevent the stormwater that otherwise causes or contributes to flooding. Stormwater strategies that reduce runoff volume also reduce runoff velocity and pollution. As a result, they provide protection to our properties, bridges and roadways from erosion; protect our creeks from pollution which helps reduce the cost of complying with state and federal laws, and make our creeks safer places for kids to visit, fish and play. 

By contrast, standard detention basins, the method of stormwater management largely used today, are merely designed to collect runoff and not reduce it. This out-dated engineering only ensures that nearly every drop collected in those basins flows to the creek where it continues to cause or exacerbate flood damages. It is important that the new stormwater ordinance in Radnor secure best practices based on current science and experience and not allow continued use of past practices known to increase the harms of flooding, pollution and erosion.

In addition, the Delaware Riverkeeper Network is active in watchdogging the stormwater advisory committee operating in Radnor and charged with making recommendations for how to invest the stormwater fee collective.  Our most recent comment can also be found below.