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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:
Maine Assessment Report
State Water Quality Program
Maine Impaired Waters and TMDL Information
Assessed Waters of Maine by Watershed
Search for a waterbody within Maine
Features
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- Assessing Water Quality (Questions and Answers)
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- Pollution Categories Summary Document
Maine 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 |  1 |
1 |
| 2011 | 6 |
7 |
Maine 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 |
|---|---|
| Pathogens |  87 |
| Organic Enrichment/Oxygen Depletion | 51 |
| Cause Unknown - Impaired Biota | 45 |
| Nutrients | 39 |
| Polychlorinated Biphenyls (PCBs) | 6 |
| Dioxins | 6 |
| Pesticides | 6 |
| Total Toxics | 4 |
| Metals (other than Mercury) | 4 |
| Habitat Alterations | 3 |
| pH/Acidity/Caustic Conditions | 1 |
| Mercury | 1 |
| Turbidity | 1 |
| Flow Alteration(s) | 1 |
Total: 255 Causes of Impairment
Maine 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 |  143 |
143 |
| Escherichia Coli (E. Coli) | 62 |
62 |
| Phosphorus, Total | 47 |
56 |
| Pollutants in Urban Stormwater | 38 |
70 |
| Lead | 6 |
6 |
| Zinc | 6 |
6 |
| Biochemical Oxygen Demand (BOD) | 5 |
5 |
| NH3 | 4 |
4 |
| Copper | 3 |
3 |
| Nitrogen, Total | 3 |
5 |
| Sediment | 3 |
5 |
| Total Suspended Solids (TSS) | 3 |
5 |
| Cadmium | 2 |
2 |
| Carbonaceous Bod | 2 |
6 |
| Iron | 2 |
2 |
| Orthophosphorus | 2 |
6 |
| Aluminum | 1 |
1 |
| Arsenic | 1 |
1 |
| Chromium, Total | 1 |
1 |
| Nickel | 1 |
1 |
| Selenium | 1 |
1 |
| Silver | 1 |
1 |
Total: 337 TMDLs; 392 Causes of Impairment Addressed
Maine 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 | 2 |
2 |
| 2000 | 11 |
11 |
| 2001 | 12 |
12 |
| 2002 | 2 |
2 |
| 2003 | 12 |
12 |
| 2004 | 7 |
7 |
| 2005 | 19 |
27 |
| 2006 | 6 |
8 |
| 2007 | 11 |
11 |
| 2008 | 5 |
5 |
| 2009 | 205 |
205 |
| 2010 | 10 |
23 |
| 2012 | 35 |
67 |
Total: 337 TMDLs; 392 Causes of Impairment Addressed