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- Previously 303(d)-Listed Waters Now Attaining All Applicable Water Quality Standards
- Causes of Impairment for 303(d) Listed Waters
- Cumulative TMDLs by Pollutant
- Cumulative Number of TMDLs
Data are also available for these cycles:
2004
2006
2008
2010
Waterbody Changes from Prior Cycle
For More Information:
Tennessee Assessment Report
State Water Quality Program
Tennessee Impaired Waters and TMDL Information
Assessed Waters of Tennessee by Watershed
Search for a waterbody within Tennessee
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- Pollution Categories Summary Document
Tennessee Previously 303(d)-Listed Waters Now Attaining All Applicable Water Quality Standards
Description of this table| NOTE: Click on the underlined "Number of Waters Attaining" value for a detailed list of those previously 303(d)-listed waters now attaining all applicable water quality standards. | ||
| Year Attaining | Number of Waters Attaining | Number of Causes of Impairment Addressed |
|---|---|---|
| 2007 |  6 |
7 |
| 2008 | 1 |
2 |
| 2012 | 5 |
6 |
Tennessee 2002 Causes of Impairment for 303(d) Listed Waters
Description of this table| NOTE: Click on a cause of impairment (e.g. pathogens) to see the specific state-reported causes that are grouped to make up this category. Click on the "Number of Causes of Impairment Reported" to see a list of waters with that cause of impairment. | |
| Cause of Impairment Group Name | Number of Causes of Impairment Reported |
|---|---|
| Sediment |  393 |
| Habitat Alterations | 370 |
| Pathogens | 304 |
| Nutrients | 147 |
| Organic Enrichment/Oxygen Depletion | 138 |
| Metals (other than Mercury) | 65 |
| Flow Alteration(s) | 38 |
| pH/Acidity/Caustic Conditions | 30 |
| Polychlorinated Biphenyls (PCBs) | 28 |
| Total Toxics | 19 |
| Pesticides | 17 |
| Temperature | 15 |
| Dioxins | 13 |
| Toxic Organics | 9 |
| Ammonia | 8 |
| Oil and Grease | 8 |
| Cause Unknown | 6 |
| Turbidity | 4 |
| Taste, Color and Odor | 4 |
| Noxious Aquatic Plants | 3 |
| Mercury | 3 |
| Salinity/Total Dissolved Solids/Chlorides/Sulfates | 3 |
| Chlorine | 2 |
| Toxic Inorganics | 1 |
Total: 1,628 Causes of Impairment
Tennessee Cumulative TMDLs by Pollutant
This chart includes TMDLs since October 1, 1995.
Description of this table| NOTE: Click on the underlined "Pollutant" value to see associated listed waters for which a TMDL was developed. Click on the underlined "Number of TMDLs" value to see a listing of those TMDLs for the pollutant. | ||
| Pollutant | Number of TMDLs | Number of Causes of Impairment Addressed |
|---|---|---|
| Escherichia Coli (E. Coli) |  541 |
547 |
| Siltation | 342 |
476 |
| Fecal Coliform | 62 |
62 |
| Other Habitat Alteration(s) | 60 |
61 |
| Nitrogen, Total | 41 |
52 |
| Phosphorus, Total | 40 |
40 |
| Polychlorinated Biphenyls (PCBs) | 21 |
21 |
| Alkalinity | 18 |
19 |
| Carbonaceous Bod | 14 |
15 |
| Iron | 12 |
13 |
| Chlordane | 11 |
21 |
| pH | 10 |
10 |
| Low pH | 7 |
7 |
| Chlordane in Fish Tissue | 6 |
6 |
| Dioxin in Fish Tissue | 6 |
7 |
| Manganese | 5 |
6 |
| Dioxins | 4 |
4 |
| Ammonia, Un-ionized | 2 |
3 |
| Antimony | 1 |
1 |
| Arsenic | 1 |
1 |
| Cadmium | 1 |
1 |
| Copper | 1 |
1 |
| Lead | 1 |
1 |
| PCB(s) in Fish Tissue | 1 |
2 |
| Salinity/Total Dissolved Solids/Chlorides | 1 |
1 |
| Zinc | 1 |
1 |
Total: 1,210 TMDLs; 1,379 Causes of Impairment Addressed
Tennessee Cumulative Number of TMDLs
EPA Fiscal Year starts October 1 and ends September 30.
Description of this table
| NOTE: Click on the underlined "Number of TMDLs Completed" value for a detailed list of the TMDLs for the fiscal year. | ||
| Fiscal Year | Number of TMDLs | Number of Causes of Impairment Addressed |
|---|---|---|
| 1999 | 1 |
1 |
| 2001 | 8 |
8 |
| 2002 | 13 |
13 |
| 2003 | 51 |
72 |
| 2004 | 65 |
66 |
| 2005 | 80 |
97 |
| 2006 | 319 |
383 |
| 2007 | 90 |
100 |
| 2008 | 311 |
324 |
| 2009 | 101 |
143 |
| 2010 | 57 |
57 |
| 2011 | 56 |
56 |
| 2012 | 58 |
59 |
Total: 1,210 TMDLs; 1,379 Causes of Impairment Addressed