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EPA/WATER RIN: 2040-AF13 Publication ID: Spring 2010 
Title: ●Stormwater Regulations To Address Revision Discharges From Developed Sites 
Abstract: Stormwater runoff from developed areas is a major cause of degradation of surface waters. This is true for both conveyance of pollutants and the erosive power of increased stormwater flow rates and volumes. Current stormwater regulations were promulgated in 1994 and 1999. In 2006, the Office of Water asked the National Research Council (NRC) to review the stormwater program and recommend ways to strengthen it. The NRC Report, which was finalized in October 2008, found that the current stormwater program "…is not likely to adequately control stormwater’s contribution to waterbody impairment," and recommended that EPA take action to address the harmful effects of stormwater flow. This proposed action would establish requirements for managing stormwater discharges from new development and re-development to reduce the amount of pollutants and excess runoff entering receiving waters. This action may also expand the areas subject to Municipal Separate Storm Sewer Systems (MS4) permits, to include rapidly developing areas and to cover some discharges that are not currently regulated. A single set of stormwater requirements may be developed for Phase I and Phase II MS4s. Retrofitting for existing discharges may be addressed, although expectations for retrofitting will likely differ significantly from requirements for new and re-development. This action would strengthen the stormwater program's effectiveness by reducing pollutant loading, promoting hydrologic sustainability, and preserving surface water health and integrity. 
Agency: Environmental Protection Agency(EPA)  Priority: Other Significant 
RIN Status: First time published in the Unified Agenda Agenda Stage of Rulemaking: Long-Term Actions 
Major: Undetermined  Unfunded Mandates: Undetermined 
CFR Citation: Not Yet Determined     (To search for a specific CFR, visit the Code of Federal Regulations.)
Legal Authority: Not Yet Determined   
Legal Deadline:  None
Action Date FR Cite
NPRM  09/00/2011    
Final Action  12/00/2012    
Additional Information: SAN No. 5408.
Regulatory Flexibility Analysis Required: Undetermined  Government Levels Affected: Undetermined 
Small Entities Affected: No  Federalism: Undetermined 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Jonathan Angier
Environmental Protection Agency
Washington, DC 20460
Phone:202 564-0729
Fax:202 564-6392

Holly Galavotti
Environmental Protection Agency
Washington, DC 20460
Phone:202 564-1489