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Illicit Discharge Detection and Elimination (IDDE)
![Cover of the IDDE Manual](https://webarchive.library.unt.edu/eot2008/20081111003113im_/http://cfpub1.epa.gov/npdes/images/idde-manual-cover.jpg)
Developed by the Center for Watershed Protection and Dr. Robert Pitt, University of Alabama under an EPA grant, the manual Illicit Discharge Detection and Elimination (IDDE): A Guidance Manual for Program Development and Technical Assistance is intended to provide support and guidance to stormwater Phase II communities developing IDDE programs. This comprehensive manual discusses all aspects of an IDDE Program including:
- Components of an effective IDDE program
- Auditing existing programs
- Identifying and preventing illicit discharges
- Field screening using the Outfall Reconnaissance Inventory (ORI)
- Techniques to track and fix illicit discharges
An electronic copy of the guide, along with many of the tools, supporting resources, and examples of other IDDE manuals are available below.
Additional IDDE documents
Electronic Resources Associated with the Manual
IDDE Supporting Material
IDDE Webcasts
Regional and State IDDE Guidance
- IDDE Manual: A Guidance Manual for Municipalities in the State of Ohio [PDF - 1.74 MB - 111 pp]
(Cuyahoga County Board of Health, 2006)
- A Guidance Manual for Identifying and Eliminating Illicit Connections to MS4s [PDF - 41 MB - 55 pp]
(Galveston County, TX Health District, 2002)
- Detecting Illicit Stormwater Discharges: Fact Sheet Series [PDF - 1.58 MB - 9 pp]
(Missouri Department of Natural Resources, 2007)
- Guidelines and Standard Operating Procedures: IDDE and Pollution Prevention / Good Housekeeping for Stormwater Phase II Communities in New Hampshire [PDF - 1.46 MB - 116 pp]
(New Hampshire Department of Environmental Services, 2006)
- How to Do Phase II: Guidance for Local Governments, Measure 3: IDDE
(North Carolina Cooperative Extension)
- IDDE Manual: A Handbook for Municipalities [PDF - 495 KB - 59 pp]
(New England Interstate Water Pollution Control Commission, 2003)
- Lake County IDDE Guidance Manual [PDF - 1.25 MB - 125 pp]
(Lake County, IL Stormwater Management Commission, 2006)
- Lower Charles River IDDE Protocol Guidance for Consideration [PDF - 124 KB - 6 pp]
(Massachusetts Department of Environmental Protection, 2004)
- The Rouge River Project IDDE Program
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