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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:
2002
2004
2006
2008
2010
2012
Waterbody Changes from Prior Cycle
For More Information:
Rhode Island Impaired Waters and TMDL Information
Assessed Waters of Rhode Island by Watershed
Search for a waterbody within Rhode Island
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Rhode Island 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 |
|---|---|---|
| 2008 |  4 |
4 |
| 2011 | 1 |
1 |
| 2012 | 1 |
1 |
Rhode Island 1998 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 |
|---|---|
| Metals (other than Mercury) |  56 |
| Pathogens | 43 |
| Cause Unknown - Impaired Biota | 38 |
| Nutrients | 35 |
| Organic Enrichment/Oxygen Depletion | 30 |
| Turbidity | 12 |
| Algal Growth | 12 |
| Salinity/Total Dissolved Solids/Chlorides/Sulfates | 7 |
| Taste, Color and Odor | 2 |
| Total Toxics | 2 |
| Noxious Aquatic Plants | 1 |
| Polychlorinated Biphenyls (PCBs) | 1 |
| pH/Acidity/Caustic Conditions | 1 |
| Other Cause | 1 |
| Toxic Organics | 1 |
| Dioxins | 1 |
| Sediment | 1 |
| Mercury | 1 |
Total: 245 Causes of Impairment
Rhode Island 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 |
|---|---|---|
| Enterococcus Bacteria |  59 |
59 |
| Fecal Coliform | 59 |
59 |
| Pathogens | 20 |
20 |
| Mercury | 19 |
19 |
| Phosphorus, Total | 17 |
37 |
| Copper | 4 |
4 |
| Lead | 4 |
4 |
| Zinc | 4 |
4 |
| Cadmium | 2 |
2 |
| Escherichia Coli (E. Coli) | 1 |
1 |
| Nutrients | 1 |
4 |
Total: 190 TMDLs; 213 Causes of Impairment Addressed
Rhode Island 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 |
3 |
| 2001 | 3 |
3 |
| 2002 | 7 |
7 |
| 2003 | 5 |
5 |
| 2004 | 3 |
6 |
| 2005 | 2 |
2 |
| 2006 | 25 |
28 |
| 2007 | 18 |
30 |
| 2008 | 28 |
31 |
| 2009 | 12 |
12 |
| 2010 | 7 |
7 |
| 2011 | 65 |
65 |
| 2013 | 14 |
14 |
Total: 190 TMDLs; 213 Causes of Impairment Addressed