Water: Total Maximum Daily Loads (303d)
Working with Partners
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TMDL Knowledgebase Clearinghouse
Virginia Tech's Center for TMDL and Watershed Studies has developed this database, funded in part by EPA grant number 83217601, which houses selected TMDL-related information. This searchable clearinghouse contains three types of resources: TMDL guidance documents, reviews, and summaries of TMDL-related technical and trade literature, and state-by-state summaries of TMDL programs across the nation.
Environmental Law Institute State TMDL Program Resource Center
This Environmental Law Institute Web site includes background material, presentations, and proceedings from recent workshops with state TMDL practitioners, funded under EPA grant numbers 83343001 and 83414701. The site contains the 2009 workshop summary which includes a living “cookbook” of practical state TMDL approaches for more effectively addressing nonpoint source impairments in the TMDL Program. The site also provides state-specific TMDL program snapshots on state resources, highlights and innovations.
The National Estuary Program in Action: Improving Water Quality with TMDLs
The National Estuary Program provides case study fact sheets highlighting implementation of Clean Water Act core programs in ways that are effective, efficient, collaborative, and adaptive.
Association of State and Interstate Water Pollution Control Administrators (ASIWPCA) TMDLs.net
This Web site, funded in part by EPA grant numbers 83245201 and 83243201, provides general information on TMDLs, specific examples, approaches to implementation, and many other technical, educational, and regulatory resources related to TMDLs.
Water Environment Federation's Third Party TMDL Development Toolkit (PDF) (30 pp, 1.7MB)
This tookit, developed under EPA cooperative agreement number 83255601, provides basic steps in which an organization or group other than the lead water quality agency takes responsibility for developing the TMDL document and supporting analysis.
National Corn Growers Association Clean Water Act and TMDL Program: An Introduction and Basic Desk Reference for Corn Growers (PDF). (49 pp, 542K)
This primer from the National Corn Growers Association includes information on the Clean Water Act, TMDLs, a hypothetical TMDL case study, and opportunities for the agricultural community's involvement in development and implementation of TMDLs.
National Association of Counties (NACo) Introductory Workshops on TMDLs (funded in part by EPA grant number 83342601):
- "Stormwater Runoff for Counties" Webinar, November 12, 2009
This Webinar, with a targeted audience of NACo members, describes how counties protect vital waterways, lakes, ponds and drinking water from pollutants on streets, driveways and roofs. Materials from the Webinar follow:
- Webinar (Windows Media) (70MB, About Windows Media)
- Transcript of the Webinar (PDF) (15 pp, 62K)
- USEPA presentation: Total Maximum Daily Loads (TMDLs): A Watershed Planning Tool for Counties (PDF) (8 pp, 538K)
- DuPage County, Illinois presentation: Bringing Regional Watershed Planning into the TMDL Process (PDF) (24 pp, 2.6MB)
- Los Angeles County, California presentation: An Integrated Watershed-Based Approach for Urban Runoff and Stormwater Quality of Los Angeles County (PDF) (24 pp, 1.7MB)
"The ABC's of TMDLs for Stakeholders" Audio version of Sept. 28, 2005 Webcast seminar
This Webcast provides an introduction to the impaired waters listing and TMDL Programs. Case examples illustrate the various principles of the TMDL Program and how this program is being used to guide water quality control decisions in both the point source and nonpoint source arenas. The Webcast also describes how you can be involved in the 303(d) listing and TMDL development efforts in your watershed.
EPA and Forest Service Memorandum of Agreement to Address Water Quality Impairments on National Forest System Lands- Benjamin H. Grumbles (EPA) and Abigail Kimbell (Forest Service) - Sept. 28, 2007
EPA and the U.S. Forest Service signed this Memorandum of Agreement (MOA) to foster efficient strategies to address water quality impairments in National Forest System watersheds.