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On This Page 303(d) Listed Waters for 2012

Data are also available for these cycles:
2002 2004 2006 2008 2010

Waterbody Changes from Prior Cycle

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North Carolina Water Quality Assessment Report

Assessed Waters of North Carolina by Watershed

Select a watershed from the list:
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Search for a waterbody within North Carolina
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Display impaired waters and TMDL information only


NOTE: In North Carolina, the designated uses of all statewide water bodies are considered impaired for fish consumption due to a statewide fish consumption advisory that is in effect because of elevated mercury levels in fish tissue. Excluding the statewide mercury fish consumption advisory, the number of impaired waters is significantly less. To see an assessment summary that excludes the statewide mercury fish consumption advisory, see North Carolina¿s 2012 Integrated Report on the State Water Quality Data Assessment website: http://portal.ncdenr.org/web/wq/ps/mtu/assessment



Site-specific Targeted Monitoring Summary Results

North Carolina (2012)

Description of this table
 
   
       1,149.0 15,165.7 7.7
   
                          
                          
                          
                          
    38,211.1 248,041.8 3,320.4 321.2
           35,209.3     214,206.0     2,517.9     321.2
                          
                          
           3,001.8     33,835.8     802.5     
              87.0     1,415.7     .0     .0
                    2,914.7           32,420.1           802.5          
38,211.1 248,041.8 3,320.4 321.2
38,211.1 311,236.0 3,320.4 321.2
100.0 79.7 100.0 100.0

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Summary of Water Quality Assessments for Each Waterbody Type
for Reporting Year 2012


Site-specific Targeted Monitoring Results

North Carolina Rivers and Streams 2012

Description of this table

All
Rivers and Streams

38,211.1 Miles of Rivers and Streams

Assessed 38,211.1
Unassessed -.0
Total Miles 38,211.1







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Description of this table

Assessed
Rivers and Streams

38,211.1 Miles of
Assessed Rivers and Streams

Good .0
Threatened .0
Impaired 38,211.1
Total Miles Assessed 38,211.1







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Description of this table

Threatened and Impaired
Rivers and Streams

38,211.1 Miles of
Threatened and Impaired
Rivers and Streams

35,296.3
.0
.0
2,914.7
Total Threatened and Impaired 38,211.1

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
North Carolina Rivers and Streams 2012

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Aquatic Life 13,376.5 77.5 .0 22.5 color.gifcolor.gif
Fish Consumption 38,211.1 .0 .0 100.0 color.gif
Recreation 4,766.2 91.2 .0 8.8 color.gifcolor.gif
Water Supply 331.1 96.3 .0 3.7 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
North Carolina Rivers and Streams 2012

Description of this table
Mercury in Fish Tissue Mercury color.gif 38,211.1
Ecological/Biological Integrity Benthos Cause Unknown - Impaired Biota color.gif 1,520.6
Turbidity Turbidity color.gif 841.7
Ecological/Biological Integrity Fishcom Cause Unknown - Impaired Biota color.gif 476.5
Fecal Coliform Pathogens color.gif 418.0
Copper Metals (other than Mercury) color.gif 357.3
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 326.6
Mercury in Water Column Mercury color.gif 289.0
Low pH pH/Acidity/Caustic Conditions color.gif 248.4
Zinc Metals (other than Mercury) color.gif 145.1
Polychlorinated Biphenyls (PCBs) Polychlorinated Biphenyls (PCBs) color.gif 63.4
Dioxin Dioxins color.gif 38.1
Cadmium Metals (other than Mercury) color.gif 24.4
Chlorophyll-A Algal Growth color.gif 21.0
Ammonia Ammonia color.gif 12.9
Nitrate/Nitrite (Nitrite + Nitrate as N) Nutrients color.gif 12.2
Lead Metals (other than Mercury) color.gif 11.8
Temperature Temperature color.gif 9.8
Chloride Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 4.4
Arsenic Metals (other than Mercury) color.gif 1.9
Toxic Impacts Total Toxics color.gif .8

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Site-specific Targeted Monitoring Results

Probable Sources
North Carolina Rivers and Streams 2012

No probable sources of impairments reported.

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Site-specific Targeted Monitoring Results

North Carolina Lakes, Reservoirs, and Ponds 2012

Description of this table

All
Lakes, Reservoirs, and Ponds

311,236.0 Acres of Lakes, Reservoirs, and Ponds

Assessed 248,041.8
Unassessed 63,194.2
Total Acres 311,236.0







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Description of this table

Assessed
Lakes, Reservoirs, and Ponds

248,041.8 Acres of
Assessed Lakes, Reservoirs, and Ponds

Good .0
Threatened .0
Impaired 248,041.8
Total Acres Assessed 248,041.8







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Description of this table

Threatened and Impaired
Lakes, Reservoirs, and Ponds

248,041.8 Acres of
Threatened and Impaired
Lakes, Reservoirs, and Ponds

215,621.8
.0
.0
32,420.1
Total Threatened and Impaired 248,041.8

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
North Carolina Lakes, Reservoirs, and Ponds 2012

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Aquatic Life 216,951.6 80.1 .0 19.9 color.gifcolor.gif
Fish Consumption 248,041.8 .0 .0 100.0 color.gif
Recreation 58,217.0 99.7 .0 .3 color.gifcolor.gif
Water Supply 22,236.9 100.0 .0 .0 color.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
North Carolina Lakes, Reservoirs, and Ponds 2012

Description of this table
Mercury in Fish Tissue Mercury color.gif 248,041.8
Chlorophyll-A Algal Growth color.gif 39,115.5
Turbidity Turbidity color.gif 12,080.8
High pH pH/Acidity/Caustic Conditions color.gif 11,013.9
Polychlorinated Biphenyls (PCBs) Polychlorinated Biphenyls (PCBs) color.gif 7,063.6
Copper Metals (other than Mercury) color.gif 1,910.0
Low pH pH/Acidity/Caustic Conditions color.gif 375.3
Fecal Coliform Pathogens color.gif 170.6
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 155.4
Mercury in Water Column Mercury color.gif 35.2

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Site-specific Targeted Monitoring Results

Probable Sources
North Carolina Lakes, Reservoirs, and Ponds 2012

No probable sources of impairments reported.

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Site-specific Targeted Monitoring Results

North Carolina Bays and Estuaries 2012

Description of this table

All
Bays and Estuaries

3,320.4 Square Miles of Bays and Estuaries

Assessed 3,320.4
Unassessed .0
Total Square Miles 3,320.4







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Description of this table

Assessed
Bays and Estuaries

3,320.4 Square Miles of
Assessed Bays and Estuaries

Good .0
Threatened .0
Impaired 3,320.4
Total Square Miles Assessed 3,320.4







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Description of this table

Threatened and Impaired
Bays and Estuaries

3,320.4 Square Miles of
Threatened and Impaired
Bays and Estuaries

2,517.9
.0
.0
802.5
Total Threatened and Impaired 3,320.4

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
North Carolina Bays and Estuaries 2012

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Aquatic Life 831.6 2.1 .0 97.9 color.gifcolor.gif
Fish Consumption 3,320.4 .0 .0 100.0 color.gif
Recreation 1,671.4 99.5 .0 .5 color.gifcolor.gif
Shellfish Harvesting 2,217.1 95.1 .0 4.9 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
North Carolina Bays and Estuaries 2012

Description of this table
Mercury in Fish Tissue Mercury color.gif 3,320.4
Copper Metals (other than Mercury) color.gif 698.4
Chlorophyll-A Algal Growth color.gif 207.7
Shellfish Growing Area-Conditionally Approved Closed Pathogens color.gif 49.7
Shellfish Growing Area-Prohibited Pathogens color.gif 45.0
High pH pH/Acidity/Caustic Conditions color.gif 22.4
Turbidity Turbidity color.gif 18.8
Nickel Metals (other than Mercury) color.gif 14.7
Arsenic Metals (other than Mercury) color.gif 14.6
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 10.5
Shellfish Growing Area-Conditionally Approved Open Pathogens color.gif 9.4
Low pH pH/Acidity/Caustic Conditions color.gif 8.8
Enterococcus Bacteria Pathogens color.gif 7.4
Fecal Coliform Pathogens color.gif 4.8
Recreation Advisory Postings Other Cause color.gif 1.3
Temperature Temperature color.gif .2
Ecological/Biological Integrity Benthos Cause Unknown - Impaired Biota color.gif .0

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Site-specific Targeted Monitoring Results

Probable Sources
North Carolina Bays and Estuaries 2012

No probable sources of impairments reported.

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Site-specific Targeted Monitoring Results

North Carolina Coastal Shoreline 2012

Description of this table

All
Coastal Shoreline

321.2 Miles of Coastal Shoreline

Assessed 321.2
Unassessed .0
Total Miles 321.2







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Description of this table

Assessed
Coastal Shoreline

321.2 Miles of
Assessed Coastal Shoreline

Good .0
Threatened .0
Impaired 321.2
Total Miles Assessed 321.2







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Description of this table

Threatened and Impaired
Coastal Shoreline

321.2 Miles of
Threatened and Impaired
Coastal Shoreline

321.2
.0
.0
.0
Total Threatened and Impaired 321.2

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
North Carolina Coastal Shoreline 2012

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Fish Consumption 321.2 .0 .0 100.0 color.gif
Recreation 302.6 100.0 .0 .0 color.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
North Carolina Coastal Shoreline 2012

Description of this table
Mercury in Fish Tissue Mercury color.gif 321.2

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Site-specific Targeted Monitoring Results

Probable Sources
North Carolina Coastal Shoreline 2012

No probable sources of impairments reported.

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North Carolina Causes of Impairment for Reporting Year 2012


Description of this table
NOTE: Click on the underlined Cause of Impairment Group to see a list of specific state causes of impairment making up the Cause of Impairment Group. See also Pollution categories summary document (PDF) (20 pp, 557K, About PDF) for brief, non-technical descriptions of general cause categories.
Size of Assessed Waters with Listed Causes of Impairment
Algal Growth 21.0 39,115.5 207.7
Ammonia 12.9
Cause Unknown - Impaired Biota 1,856.0 .0
Dioxins 38.1
Mercury 38,211.1 248,041.8 3,320.4 321.2
Metals (other than Mercury) 408.3 1,910.0 698.5
Nutrients 12.2
Organic Enrichment/Oxygen Depletion 326.6 155.4 10.5
Other Cause 1.3
Pathogens 418.0 170.6 116.3
pH/Acidity/Caustic Conditions 248.4 11,389.2 31.2
Polychlorinated Biphenyls (PCBs) 63.4 7,063.6
Salinity/Total Dissolved Solids/Chlorides/Sulfates 4.4
Temperature 9.8 .2
Total Toxics .8
Turbidity 841.7 12,080.8 18.8

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North Carolina Probable Sources Contributing to Impairments
for Reporting Year 2012

No probable sources reported.

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North Carolina TMDL Alternatives by Cause of Impairment 2012


Description of this table


NOTE: Click on the underlined "Number of TMDL Alternatives by Cause of Impairment " value to see a listing of those Causes of Impairment.
Chlorophyll-A color.gif 9   12,234 3
Ecological/Biological Integrity Benthos color.gif 6 32    
Ammonia color.gif 2 13    
Ecological/Biological Integrity Fishcom color.gif 2 6    
Copper color.gif 1 6    
Toxic Impacts color.gif 1 1    
Turbidity color.gif 1 3    
Zinc color.gif 1 5    

Total: 23 TMDL Alternatives

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North Carolina 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.
2007 color.gif 66 72
2010 color.gif 64 70
2013 color.gif 69 74

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North Carolina 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.
Pathogens color.gif 614
Cause Unknown - Impaired Biota color.gif 334
Metals (other than Mercury) color.gif 105
Turbidity color.gif 95
Organic Enrichment/Oxygen Depletion color.gif 51
pH/Acidity/Caustic Conditions color.gif 46
Algal Growth color.gif 38
Polychlorinated Biphenyls (PCBs) color.gif 17
Other Cause color.gif 10
Mercury color.gif 3
Temperature color.gif 2
Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 2
Nutrients color.gif 2
Dioxins color.gif 1

Total: 1,320 Causes of Impairment

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North Carolina 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.
Number of Causes of
Impairment Addressed
Mercury color.gif 13,215 13,215
Fecal Coliform color.gif 124 124
Nitrogen, Total color.gif 16 16
Total Suspended Solids (TSS) color.gif 16 16
Fecal color.gif 15 15
Phosphorus, Total color.gif 15 15
Chlorophyll-A color.gif 7 7
Dissolved Oxygen color.gif 7 7
Aquatic Weeds color.gif 5 5
Dioxin color.gif 5 5
Turbidity color.gif 5 5
Biological Integrity color.gif 4 4
Pollutants in Urban Stormwater color.gif 3 3
Alkalinity color.gif 2 2
Nitrogen color.gif 2 2
Biochemical Oxygen Demand (BOD) color.gif 1 1
Copper color.gif 1 1

Total: 13,443 TMDLs; 13,443 Causes of Impairment Addressed


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North Carolina 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.
1996 color.gif 14 14
1997 color.gif 5 5
1999 color.gif 2 2
2000 color.gif 35 35
2002 color.gif 15 15
2003 color.gif 7 7
2004 color.gif 16 16
2005 color.gif 14 14
2006 color.gif 7 7