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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
2010
Waterbody Changes from Prior Cycle
For More Information:
Massachusetts Assessment Report
State Water Quality Program
Massachusetts Impaired Waters and TMDL Information
Assessed Waters of Massachusetts by Watershed
Search for a waterbody within Massachusetts
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Massachusetts 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 |
|---|---|---|
| 2006 |  5 |
8 |
Massachusetts 2006 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 |
|---|---|
| Pathogens |  396 |
| Nutrients | 197 |
| Noxious Aquatic Plants | 195 |
| Organic Enrichment/Oxygen Depletion | 193 |
| Turbidity | 192 |
| Metals (other than Mercury) | 184 |
| Cause Unknown | 86 |
| Toxic Organics | 85 |
| Taste, Color and Odor | 43 |
| Sediment | 33 |
| Pesticides | 24 |
| Total Toxics | 24 |
| Habitat Alterations | 21 |
| Oil and Grease | 16 |
| pH/Acidity/Caustic Conditions | 16 |
| Ammonia | 12 |
| Temperature | 8 |
| Salinity/Total Dissolved Solids/Chlorides/Sulfates | 3 |
| Toxic Inorganics | 3 |
Total: 1,731 Causes of Impairment
Massachusetts 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 |
|---|---|---|
| Fecal Coliform |  155 |
155 |
| Mercury | 89 |
89 |
| Phosphorus, Total | 78 |
134 |
| Nitrogen, Total | 67 |
70 |
| Phosphorus | 49 |
61 |
| Fecal | 45 |
45 |
| Pathogens | 36 |
36 |
| Escherichia Coli (E. Coli) | 34 |
34 |
| Mercury in Fish Tissue | 20 |
20 |
| Enterococcus Bacteria | 3 |
3 |
Total: 576 TMDLs; 647 Causes of Impairment Addressed
Massachusetts 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 |
|---|---|---|
| 2000 | 1 |
1 |
| 2002 | 102 |
119 |
| 2003 | 28 |
31 |
| 2004 | 20 |
20 |
| 2005 | 2 |
2 |
| 2006 | 11 |
13 |
| 2007 | 25 |
25 |
| 2008 | 133 |
138 |
| 2009 | 115 |
115 |
| 2010 | 9 |
14 |
| 2011 | 50 |
89 |
| 2012 | 38 |
38 |
| 2013 | 42 |
42 |
Total: 576 TMDLs; 647 Causes of Impairment Addressed