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North Carolina Assessment Summary for Reporting Year 2006

Description of this table

	Size of Water
	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)	Bays and Estuaries (Square Miles)	Coastal Shoreline (Miles)	Wetlands (Acres)
Good Waters	3,502.0	48,690.9			632,055.7
Previously impaired waters       now attaining all uses	12.9
Threatened Waters
TMDL completed
TMDL alternative
Non-pollutant impairment
TMDL needed
Impaired Waters	3,577.6	58,389.2	.0	321.9	110,000.5
TMDL completed	313.1	68.1			24,492.9
TMDL alternative	84.1	280.0
Non-pollutant impairment	22.0
TMDL needed	3,158.3	58,041.0	.0	321.9	85,507.5
New TMDLs completed	44.5	7,535.5	.0	.0	1,716.4
Remaining TMDLs needed	3,113.8	50,505.5	.0	321.9	83,791.1
Total Assessed Waters	7,079.6	107,080.1	.0	321.9	742,056.2
Total Waters	37,662.0	311,236.0	3,121.0	Unavailable	7,175,000.0
Percent of Waters Assessed	18.8	34.4	.0	Unavailable	10.3

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Summary of Water Quality Assessments for Each Waterbody Type
for Reporting Year 2006

North Carolina Assessed Waters
Summary of Water Quality Attainment for Rivers and Streams
Reporting Year 2006

Description of this table Assessed Status Miles Assessed 7,079.6 Unassessed 30,582.4 Total Miles 37,662.0

Description of this table Attainment Status Miles Good 3,502.0 Threatened .0 Impaired 3,577.6 Total Miles Assessed 7,079.6

Description of this table TMDL Development Status Miles All TMDLs completed 357.6 TMDL alternative 84.1 Non-pollutant impairment 22.0 TMDL needed 3,113.8 Total Threatened and Impaired 3,577.6

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North Carolina Assessed Waters
Designated Use Support for Rivers and Streams
Reporting Year 2006*

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

Description of this table

Designated Use	Miles Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Overall Use	7,079.6	49.5	.0	50.5

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North Carolina Causes of Impairment
for Threatened and Impaired Rivers and Streams
Reporting Year 2006

Description of this table

Cause of Impairment	Cause of Impairment Group	Miles Threatened or Impaired
Biological Integrity	Cause Unknown - Impaired Biota	1,675.0
Mercury in Fish Tissue	Mercury	520.0
Turbidity	Turbidity	297.9
Dissolved Oxygen	Organic Enrichment/Oxygen Depletion	292.7
pH	pH/Acidity/Caustic Conditions	203.7
Fecal Coliform	Pathogens	151.1
Nutrients	Nutrients	34.1
Selenium	Metals (other than Mercury)	28.4
Copper	Metals (other than Mercury)	27.4
Chlorophyll-A	Algal Growth	24.7
Toxicity	Total Toxics	17.9
Organic Enrichment (Sewage) Biological Indicators	Organic Enrichment/Oxygen Depletion	13.1
Aquatic Plants - Native	Nuisance Native Species	6.9
Lindane	Pesticides	6.6
Dioxin (Including 2,3,7,8-TCDD)	Dioxins	6.4
Chlorine	Chlorine	4.4
Zinc	Metals (other than Mercury)	.9
Iron	Metals (other than Mercury)	.9

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North Carolina Probable Sources of Impairments
for Threatened and Impaired Rivers and Streams
Reporting Year 2006

No probable sources of impairments reported.

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North Carolina Assessed Waters
Summary of Water Quality Attainment for Lakes, Reservoirs, and Ponds
Reporting Year 2006

Description of this table Assessed Status Acres Assessed 107,080.1 Unassessed 204,155.9 Total Acres 311,236.0

Description of this table Attainment Status Acres Good 48,690.9 Threatened .0 Impaired 58,389.2 Total Acres Assessed 107,080.1

Description of this table TMDL Development Status Acres All TMDLs completed 7,603.6 TMDL alternative 280.0 Non-pollutant impairment .0 TMDL needed 50,505.5 Total Threatened and Impaired 58,389.2

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North Carolina Assessed Waters
Designated Use Support for Lakes, Reservoirs, and Ponds
Reporting Year 2006*

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

Description of this table

Designated Use	Acres Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Overall Use	107,080.1	45.5	.0	54.5

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North Carolina Causes of Impairment
for Threatened and Impaired Lakes, Reservoirs, and Ponds
Reporting Year 2006

Description of this table

Cause of Impairment	Cause of Impairment Group	Acres Threatened or Impaired
Mercury in Fish Tissue	Mercury	29,188.5
Chlorophyll-A	Algal Growth	16,402.7
Turbidity	Turbidity	10,449.7
Aquatic Plants - Native	Nuisance Native Species	5,140.6
pH	pH/Acidity/Caustic Conditions	3,494.0
Dioxin (Including 2,3,7,8-TCDD)	Dioxins	1,475.5
Biological Integrity	Cause Unknown - Impaired Biota	905.7
Nutrients	Nutrients	75.3

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North Carolina Probable Sources of Impairments
for Threatened and Impaired Lakes, Reservoirs, and Ponds
Reporting Year 2006

No probable sources of impairments reported.

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North Carolina Assessed Waters
Summary of Water Quality Attainment for Bays and Estuaries
Reporting Year 2006

Description of this table Assessed Status Square Miles Assessed .0 Unassessed 3,121.0 Total Square Miles 3,121.0

Description of this table Attainment Status Square Miles Good .0 Threatened .0 Impaired .0 Total Square Miles Assessed .0

Description of this table TMDL Development Status Square Miles All TMDLs completed .0 TMDL alternative .0 Non-pollutant impairment .0 TMDL needed .0 Total Threatened and Impaired .0

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North Carolina Assessed Waters
Designated Use Support for Bays and Estuaries
Reporting Year 2006*

No designated uses reported.

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North Carolina Causes of Impairment
for Threatened and Impaired Bays and Estuaries
Reporting Year 2006

No causes of impairment reported.

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North Carolina Probable Sources of Impairments
for Threatened and Impaired Bays and Estuaries
Reporting Year 2006

No probable sources of impairments reported.

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North Carolina Assessed Waters
Summary of Water Quality Attainment for Coastal Shoreline
Reporting Year 2006

Description of this table Pie chart not displayed because total size for Coastal Shoreline is unavailable. Assessed Status Miles Assessed 321.9 Unassessed Unavailable Total Miles Unavailable

Description of this table Attainment Status Miles Good .0 Threatened .0 Impaired 321.9 Total Miles Assessed 321.9

Description of this table TMDL Development Status Miles All TMDLs completed .0 TMDL alternative .0 Non-pollutant impairment .0 TMDL needed 321.9 Total Threatened and Impaired 321.9

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North Carolina Assessed Waters
Designated Use Support for Coastal Shoreline
Reporting Year 2006*

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

Description of this table

Designated Use	Miles Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Overall Use	321.9	.0	.0	100.0

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North Carolina Causes of Impairment
for Threatened and Impaired Coastal Shoreline
Reporting Year 2006

Description of this table

Cause of Impairment	Cause of Impairment Group	Miles Threatened or Impaired
Mercury in Fish Tissue	Mercury	321.9
Selenium	Metals (other than Mercury)	91.0

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North Carolina Probable Sources of Impairments
for Threatened and Impaired Coastal Shoreline
Reporting Year 2006

No probable sources of impairments reported.

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North Carolina Assessed Waters
Summary of Water Quality Attainment for Wetlands
Reporting Year 2006

Description of this table Assessed Status Acres Assessed 742,056.2 Unassessed 6,432,943.8 Total Acres 7,175,000.0

Description of this table Attainment Status Acres Good 632,055.7 Threatened .0 Impaired 110,000.5 Total Acres Assessed 742,056.2

Description of this table TMDL Development Status Acres All TMDLs completed 26,209.3 TMDL alternative .0 Non-pollutant impairment .0 TMDL needed 83,791.1 Total Threatened and Impaired 110,000.5

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North Carolina Assessed Waters
Designated Use Support for Wetlands
Reporting Year 2006*

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

Description of this table

Designated Use	Acres Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Overall Use	742,056.2	85.2	.0	14.8

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North Carolina Causes of Impairment
for Threatened and Impaired Wetlands
Reporting Year 2006

Description of this table

Cause of Impairment	Cause of Impairment Group	Acres Threatened or Impaired
Fecal Coliform	Pathogens	54,394.8
Dissolved Oxygen	Organic Enrichment/Oxygen Depletion	7,174.6
pH	pH/Acidity/Caustic Conditions	6,360.4
Chlorophyll-A	Algal Growth	2,654.0

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North Carolina Probable Sources of Impairments
for Threatened and Impaired Wetlands
Reporting Year 2006

No probable sources of impairments reported.

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North Carolina Causes of Impairment for Reporting Year 2006

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.
Cause of Impairment Group	Size of Assessed Waters with Listed Causes of Impairment
	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)	Bays and Estuaries (Square Miles)	Coastal Shoreline (Miles)	Wetlands (Acres)
Algal Growth	24.7	16,402.7			2,654.0
Cause Unknown - Impaired Biota	1,675.0	905.7
Chlorine	4.4
Dioxins	6.4	1,475.5
Mercury	520.0	29,188.5		321.9
Metals (other than Mercury)	55.7			91.0
Nuisance Native Species	6.9	5,140.6
Nutrients	34.1	75.3
Organic Enrichment/Oxygen Depletion	305.8				7,174.6
Pathogens	151.1		.0		54,394.8
Pesticides	6.6
pH/Acidity/Caustic Conditions	203.7	3,494.0			6,360.4
Total Toxics	17.9
Turbidity	297.9	10,449.7

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North Carolina Probable Sources Contributing to Impairments
for Reporting Year 2006

No probable sources reported.

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North Carolina TMDL Alternatives by Cause of Impairment 2006

No TMDL Alternatives reported.

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North Carolina Previously Impaired Waters Now Attaining All Uses

Description of this table

NOTE: Click on the underlined "Number of Waters Attaining" value for a detailed list of those waters now attaining all uses.
Cycle Attaining	Number of Waters Attaining	Number of Causes of Impairment Addressed
2007	54	58

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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.
Cause of Impairment Group Name	Number of Causes of Impairment Reported
Pathogens	485
Cause Unknown - Impaired Biota	307
Mercury	48
Turbidity	42
Organic Enrichment/Oxygen Depletion	33
pH/Acidity/Caustic Conditions	21
Algal Growth	16
Metals (other than Mercury)	9
Noxious Aquatic Plants	8
Nutrients	5
Dioxins	4
Total Toxics	2
Chlorine	1
Pesticides	1

Total: 982 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.
Pollutant	Number of TMDLs	Number of Causes of Impairment Addressed
Fecal Coliform	56	57
Mercury	35	35
Fecal	15	15
Phosphorus, Total	7	7
Nitrogen, Total	6	6
Aquatic Weeds	5	5
Dioxin	5	5
Turbidity	5	5
Total Suspended Solids (TSS)	4	5
Pollutants in Urban Stormwater	3	3
Nitrogen	2	2
Copper	1	1
Dissolved Oxygen	1	1

Total: 145 TMDLs; 147 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.
Fiscal Year	Number of TMDLs	Number of Causes of Impairment Addressed
1996	1	1
1997	5	5
1999	2	2
2000	35	35
2002	15	16
2003	7	7
2004	16	16
2005	12	13
2006	7	7
2007	24	24
2008	1	1
2009	20	20

Total: 145 TMDLs; 147 Causes of Impairment Addressed

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