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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
2006
Waterbody Changes from Prior Cycle
For More Information:
Hawaii Impaired Waters and TMDL Information
Assessed Waters of Hawaii by Watershed
Search for a waterbody within Hawaii
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Hawaii Previously 303(d)-Listed Waters Now Attaining All Applicable Water Quality Standards
No previously 303(d)-listed waters reported as now attaining all applicable water quality standards.
Hawaii 2004 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 |
|---|---|
| Turbidity |  200 |
| Nutrients | 179 |
| Algal Growth | 91 |
| Pathogens | 52 |
| Trash | 17 |
| Ammonia | 14 |
| Pesticides | 6 |
| Metals (other than Mercury) | 4 |
| Polychlorinated Biphenyls (PCBs) | 1 |
Total: 564 Causes of Impairment
Hawaii 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 |
|---|---|---|
| Turbidity |  15 |
15 |
| Total Suspended Solids (TSS) | 11 |
13 |
| Enterococcus Bacteria | 10 |
11 |
| Nitrogen, Total | 8 |
8 |
| Nitrite/Nitrate | 4 |
4 |
| Nitrogen | 4 |
4 |
| Phosphorus | 4 |
4 |
| Phosphorus, Total | 4 |
4 |
| Nitrate | 1 |
1 |
| Nutrients | 1 |
1 |
| Phosphate | 1 |
1 |
| Suspended Sediment | 1 |
1 |
Total: 64 TMDLs; 67 Causes of Impairment Addressed
Hawaii 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 |
|---|---|---|
| 1997 | 1 |
1 |
| 2001 | 6 |
6 |
| 2002 | 5 |
5 |
| 2005 | 3 |
3 |
| 2007 | 3 |
5 |
| 2008 | 28 |
29 |
| 2010 | 10 |
10 |
| 2012 | 8 |
8 |
Total: 64 TMDLs; 67 Causes of Impairment Addressed