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Total Maximum Daily Loads
National Summary
A key component of the federal effluent limitation requirements are the total maximum daily load (TMDL) provisions under Section 303(d) of the CWA. TMDLs are the amount of pollutant, or property of a pollutant, from point, nonpoint, and natural background sources, that may be discharged to receiving water that is water quality-limited. Any pollutant loading above the TMDL results in violation of an applicable water quality standard.
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 123 items in 4 pages
Final Regulations 40 CFR 130 - Public Notice on the Internet of Region 7 Disapprovals of Clean Water Act Impaired Waters Lists 09/12/2008National
Notices Agency Information Collection Activities: Proposed Collection; Comment Request; National Water Quality Inventory Reports 05/21/2003National
Notices Agency Information Collection Activities; Notification of Substantial Risk of Injury to Health and the Environment Under TSCA Section 8(e) 08/21/2009National
Guidance Documents An Approach for Using Load Duration Curves in the Development of TMDLs  National
Notices Availability of TMDLs and Determinations That TMDLs Are Not Needed; Calcasieu and Ouachita River Basins 04/01/2002National
Notices Availability of TMDLs and Determinations That TMDLs Are Not Needed; Public Comment Continuation 12/13/2001National
Notices Calcasieu and Ouachita River Basins, LA: Final Agency Action on TMDLs 06/15/2002National
Notices Calcasieu and Ouachita River Basins: Availability of 11 TMDLs and Determinations That 4 TMDLs Are Not Needed 04/24/2002National
Notices Certain New Chemicals; Receipt and Status Information 08/08/2008National
Notices Clean Water Act Section 303(d), Availability of TMDLs 12/09/2004National
Notices Clean Water Act Section 303(d): Availability of 1 TMDL 12/20/2002National
Notices Clean Water Act Section 303(d): Availability of 1 Total Maximum Daily Loads 03/10/2005National
Notices Clean Water Act Section 303(d): Availability of 10 Total Maximum Daily Loads 12/13/2006National
Notices Clean Water Act Section 303(d): Availability of 12 Modified TMDLs 12/18/2002National
Notices Clean Water Act Section 303(d): Availability of 12 Total Maximum Daily Loads (TMDL) in Louisiana 08/20/2009National
Notices Clean Water Act Section 303(d): Availability of 13 Total Maximum Daily Loads 01/10/2005National
Notices Clean Water Act Section 303(d): Availability of 16 Total Maximum Daily Loads in Louisiana 02/01/2008National
Notices Clean Water Act Section 303(d): Availability of 20 Total Maximum Daily Loads in Louisiana 10/30/2007National
Notices Clean Water Act Section 303(d): Availability of 28 Total Maximum Daily Loads (TMDLs) in Louisiana 11/11/2011National
Notices Clean Water Act Section 303(d): Availability of 28 Total Maximum Daily Loads (TMDLs) in Louisiana 12/12/2011National
Notices Clean Water Act Section 303(d): Availability of 29 Total Maximum Daily Loads in Louisiana 07/18/2007National
Notices Clean Water Act Section 303(d): Availability of 3 Total Maximum Daily Loads (TMDLs) 10/01/2003National
Notices Clean Water Act Section 303(d): Availability of 3 Total Maximum Daily Loads (TMDLs) 04/12/2004National
Notices Clean Water Act Section 303(d): Availability of 30 Modified Total Maximum Daily Loads (TMDLs) in Louisiana 08/27/2008National
Notices Clean Water Act Section 303(d): Availability of 34 Total Maximum Daily Loads in Louisiana 10/25/2007National
Notices Clean Water Act Section 303(d): Availability of 37 TMDLs 10/20/2002National
Notices Clean Water Act Section 303(d): Availability of 4 Total Maximum Daily Loads (TMDL) 02/09/2004National
Notices Clean Water Act Section 303(d): Availability of 43 Total Maximum Daily Loads 11/10/2005National
Notices Clean Water Act Section 303(d): Availability of 5 TMDLs 08/04/2003National
Notices Clean Water Act Section 303(d): Availability of 52 Total Maximum Daily Loads 06/28/2007National
Notices Clean Water Act Section 303(d): Availability of 8 Total Maximum Daily Loads (TMDLs) for Arkansas 08/12/2009National
Notices Clean Water Act Section 303(d): Availability of 86 Total Maximum Daily Loads in Arkansas 12/17/2007National
Notices Clean Water Act Section 303(d): Availability of EPA's Decision To Add Bear Creek to Colorado's 2006 List of Water Quality-Limited Segments in Need of TMDLs 04/25/2006National
Notices Clean Water Act Section 303(d): Availability of List Decision 06/05/2003National
Notices Clean Water Act Section 303(d): Availability of List Decision; Wisconsin 06/19/2003National
Notices Clean Water Act Section 303(d): Availability of List Decisions 12/15/2002National
Notices Clean Water Act Section 303(d): Availability of List Decisions 03/19/2003National
Notices Clean Water Act Section 303(d): Availability of List Decisions 03/15/2007National
Notices Clean Water Act Section 303(d): Availability of List Decisions 02/15/2008National
Notices Clean Water Act Section 303(d): Availability of List Decisions 06/17/2008National