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National and Regional Direction of the Stormwater Program

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National and Regional Direction of the Stormwater Program KAMM/KSA Conference April 21, 2010
Recent Stormwater Program Activity ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Water Quantity Impacts: Changes in Land-Water Linkages
Large Storm Small Storm Higher Baseflow Higher and More Rapid Peak Discharge More Runoff Volume Lower and Less Rapid Peak Gradual Recession Pre - development Post - development Large Storm Small Storm Higher Baseflow Higher and More Rapid Peak Discharge More Runoff Volume Lower and Less Rapid Peak Gradual Recession Pre-development - Post-development Water Quantity Impacts: Changes in Stream Hydrographs
[object Object],[object Object],[object Object],Water Quantity Impacts: Changes to Stream Channels
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Impacts of Urban Development
Impacts to Receiving Waters ,[object Object],[object Object],[object Object],[object Object]
2008 National Research Council Stormwater Study ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Key NRC Report Recommendations ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],NRC 2008 Report www.epa.gov/npdes/pubs/nrc_stormwaterreport.pdf
Energy Independence and Security Act of 2007 (EISA) ,[object Object]
Objectives of Green Infrastructure ,[object Object],[object Object],[object Object]
Common Green Infrastructure Practices ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Why Initiate Stormwater Rulemaking? ,[object Object],[object Object],[object Object]
Schedule for Rulemaking EPA expects to take final action Late 2012 EPA expects to propose a rule to be published in the FR for public comment Late 2011 EPA expects to publish a final FR ICR notice with 30-day comment period and distribute questionnaires in the summer Spring 2010 Listening Sessions input on preliminary rulemaking on preliminary rulemaking considerations (FR Notice published December 28, 2009) January to March 2010 ,[object Object],[object Object],[object Object],[object Object],Oct 30, 2009
Stakeholder Input on Rulemaking ,[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],1. Establish substantive post-construction requirements for new and redevelopment
1. Establish substantive post-construction requirements for new and redevelopment ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
2. Universe of Regulated Discharges ,[object Object],[object Object],[object Object]
2. Universe of Regulated Discharges ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
6. Develop consistent framework for MS4 permits ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Federal Stormwater Regulations Phase I ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Phase II
4. Water quality enhancement plan to retrofit existing development ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
7. A dditional requirements for sensitive areas ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object]
EPA Region 4 Expectations
MS4 Permit Improvement Guide ,[object Object],[object Object],[object Object],[object Object],[object Object]
MS4 Permit Improvement Guide (continued) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Region 4’s Expectations for MS4 Permits ,[object Object],[object Object],[object Object],[object Object]
Region 4 Areas of Focus ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Future Outlook… ,[object Object],[object Object],[object Object]
 

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National and Regional Direction of the Stormwater Program

  • 1. National and Regional Direction of the Stormwater Program KAMM/KSA Conference April 21, 2010
  • 2.
  • 3. Water Quantity Impacts: Changes in Land-Water Linkages
  • 4. Large Storm Small Storm Higher Baseflow Higher and More Rapid Peak Discharge More Runoff Volume Lower and Less Rapid Peak Gradual Recession Pre - development Post - development Large Storm Small Storm Higher Baseflow Higher and More Rapid Peak Discharge More Runoff Volume Lower and Less Rapid Peak Gradual Recession Pre-development - Post-development Water Quantity Impacts: Changes in Stream Hydrographs
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  • 26. EPA Region 4 Expectations
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