DEQ manages the Total Maximum Daily Load program for the State
of Oklahoma. A TMDL is the process of establishing the sources of
impairment in a given waterbody, whether from point sources (discharges)
or non-point sources (runoff), determining the amount of reduction
necessary to meet water quality standards in that waterbody, and
allocating the loads to the various contributors of pollution. A
margin of safety is also included in the TMDL calculation process.
Water-quality modeling is the linkage between the sources of pollution
and the instream water quality of a given waterbody. A model is
a representation of the water-quality processes that occur in a
given waterbody.
Water-quality modeling can be resource-intensive. Different levels
of complexity may be used depending on the level of confidence required
in a given situation.
- Canadian River Area Bacteria TMDL
- Canadian River (Upper)
- Dog & Cat Creek
- Fort Cobb
- Neosho River Basin
- Sans Bois Creek Area Bacteria TMDL
- Turkey Creek
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For questions about TMDLs & Water Quality Modeling, please
contact Mark Derichsweiler.
North Canadian (Oklahoma River) Bacteria TMDL Public Meeting Rescheduled 
29 Sep 2009
Eucha Lake and Spavinaw Creek TMDL
Final TMDL Report
23 Sep 2009
Salt Creek and Sand Creek Bacteria TMDLs
Final TMDL Report
23 Sep 2009
Lower Cimarron River and Skeleton Creek TMDL
Final TMDL Report
23 Sep 2009
North Canadian River Bacteria TMDL
Public Notice | Draft TMDL Report
29 Jul 2009
Bacteria TMDLs for the Arkansas River Near Tulsa and Haikey Creek
13 Oct 2008
Canadian River Area Final TMDL
18 Sep 2008
Bacteria TMDLs for the Neosho River Basin Report
June 2008
Upper Red River Bacteria TMDLs Report
June 25, 2008
Lower Red River Watershed Pathogen TMDL Final Report
11 Dec 2007
Washita River Watershed Pathogen TMDL Final Report
11 Dec 2007
Boggy Creek Watershed Pathogen TMDL Final Report
11 Dec 2007
Little River Watershed Pathogen TMDL Final Report
11 Dec 2007
TMDL Guide |
