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Site-specific Targeted Monitoring Summary Results

North Carolina (2010)

Description of this table

	Size of Water
	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)	Bays and Estuaries (Square Miles)	Coastal Shoreline (Miles)
Good Waters	8,288.5	55,753.9	2,078.5
Previously impaired waters       now attaining all uses	391.6	5,005.1
Threatened Waters
TMDL completed
TMDL alternative
Non-pollutant impairment
TMDL needed
Impaired Waters	3,791.1	120,711.7	853.9	329.2
TMDL completed
TMDL alternative
Non-pollutant impairment	.5
TMDL needed	3,790.5	120,711.7	853.9	329.2
New TMDLs completed	94.0	.0	.0	.0
Remaining TMDLs needed	3,696.5	120,711.7	853.9	329.2
Total Assessed Waters	12,079.6	176,465.5	2,932.4	329.2
Total Waters	37,662.0	311,236.0	3,121.0	Unavailable
Percent of Waters Assessed	32.1	56.7	94.0	Unavailable

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Summary of Water Quality Assessments for Each Waterbody Type
for Reporting Year 2010

Site-specific Targeted Monitoring Results

North Carolina Rivers and Streams 2010

Description of this table Assessed Status Miles Assessed 12,079.6 Unassessed 25,582.4 Total Miles 37,662.0

Description of this table Attainment Status Miles Good 8,288.5 Threatened .0 Impaired 3,791.1 Total Miles Assessed 12,079.6

Description of this table TMDL Development Status Miles All TMDLs completed 94.0 TMDL alternative .0 Non-pollutant impairment .5 TMDL needed 3,696.5 Total Threatened and Impaired 3,791.1

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
North Carolina Rivers and Streams 2010

* 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
Aquatic Life Propagation And Survival	11,680.0	76.0	.0	24.0
Drinking Water Supply	746.2	99.1	.0	.9
Fishing	968.5	.0	.0	100.0
Future Waters Supply	746.2	99.1	.0	.9
Primary Contact Recreation	3,648.6	88.7	.0	11.3
Secondary Contact Recreation	3,648.6	88.7	.0	11.3

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Site-specific Targeted Monitoring Results

Causes of Impairment
North Carolina Rivers and Streams 2010

Description of this table

Cause of Impairment	Cause of Impairment Group	Miles Threatened or Impaired
Ecological/Biological Integrity Benthos	Cause Unknown - Impaired Biota	1,570.6
Turbidity	Turbidity	956.5
Mercury in Fish Tissue	Mercury	920.9
Fecal Coliform	Pathogens	411.4
Ecological/Biological Integrity Fishcom	Cause Unknown - Impaired Biota	404.4
Copper	Metals (other than Mercury)	316.1
Dissolved Oxygen	Organic Enrichment/Oxygen Depletion	177.5
Zinc	Metals (other than Mercury)	106.4
Polychlorinated Biphenyls (PCBs)	Polychlorinated Biphenyls (PCBs)	39.8
Dioxin (Including 2,3,7,8-TCDD)	Dioxins	39.4
pH, Low	pH/Acidity/Caustic Conditions	37.3
Chlorophyll-A	Algal Growth	32.5
Cadmium	Metals (other than Mercury)	24.4
Ammonia, Un-ionized	Ammonia	12.9
Lead	Metals (other than Mercury)	11.8
Aquatic Weeds	Noxious Aquatic Plants	7.5
Legacy Sediment Listing No Water Quality Standard	Sediment	6.9
Nitrates	Nutrients	6.5
Nickel	Metals (other than Mercury)	6.2
pH	pH/Acidity/Caustic Conditions	5.9
Legacy Nutrient Listing No Water Quality Standard	Nutrients	5.4
Chloride	Salinity/Total Dissolved Solids/Chlorides/Sulfates	3.4
Toxic Impacts	Total Toxics	.8

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Site-specific Targeted Monitoring Results

Probable Sources
North Carolina Rivers and Streams 2010

No probable sources of impairments reported.

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Site-specific Targeted Monitoring Results

North Carolina Lakes, Reservoirs, and Ponds 2010

Description of this table Assessed Status Acres Assessed 176,465.5 Unassessed 134,770.5 Total Acres 311,236.0

Description of this table Attainment Status Acres Good 55,753.9 Threatened .0 Impaired 120,711.7 Total Acres Assessed 176,465.5

Description of this table TMDL Development Status Acres All TMDLs completed .0 TMDL alternative .0 Non-pollutant impairment .0 TMDL needed 120,711.7 Total Threatened and Impaired 120,711.7

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
North Carolina Lakes, Reservoirs, and Ponds 2010

* 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
Aquatic Life Propagation And Survival	122,286.5	39.2	.0	60.8
Drinking Water Supply	105,548.4	100.0	.0	.0
Fishing	47,558.4	.0	.0	100.0
Future Waters Supply	105,548.4	100.0	.0	.0
Primary Contact Recreation	112,768.9	99.8	.0	.2
Secondary Contact Recreation	112,768.9	99.8	.0	.2

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Site-specific Targeted Monitoring Results

Causes of Impairment
North Carolina Lakes, Reservoirs, and Ponds 2010

Description of this table

Cause of Impairment	Cause of Impairment Group	Acres Threatened or Impaired
Chlorophyll-A	Algal Growth	66,842.1
pH	pH/Acidity/Caustic Conditions	36,415.1
Mercury in Fish Tissue	Mercury	31,958.0
Turbidity	Turbidity	29,768.5
Dioxin (Including 2,3,7,8-TCDD)	Dioxins	15,600.4
Aquatic Weeds	Noxious Aquatic Plants	4,350.9
Copper	Metals (other than Mercury)	1,291.0
Dissolved Oxygen	Organic Enrichment/Oxygen Depletion	758.2
pH, Low	pH/Acidity/Caustic Conditions	375.3
Fecal Coliform	Pathogens	170.6
Legacy Nutrient Listing No Water Quality Standard	Nutrients	75.3

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Site-specific Targeted Monitoring Results

Probable Sources
North Carolina Lakes, Reservoirs, and Ponds 2010

No probable sources of impairments reported.

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Site-specific Targeted Monitoring Results

North Carolina Bays and Estuaries 2010

Description of this table Assessed Status Square Miles Assessed 2,932.4 Unassessed 188.6 Total Square Miles 3,121.0

Description of this table Attainment Status Square Miles Good 2,078.5 Threatened .0 Impaired 853.9 Total Square Miles Assessed 2,932.4

Description of this table TMDL Development Status Square Miles All TMDLs completed .0 TMDL alternative .0 Non-pollutant impairment .0 TMDL needed 853.9 Total Threatened and Impaired 853.9

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
North Carolina Bays and Estuaries 2010

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

Description of this table

Designated Use	Square Miles Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Aquatic Life Propagation And Survival	824.3	11.1	.0	88.9
Fishing	110.8	.0	.0	100.0
Primary Contact Recreation	910.2	99.5	.0	.5
Secondary Contact Recreation	910.2	99.5	.0	.5
Shellfishing For Market Purposes	2,241.2	94.8	.0	5.2

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Site-specific Targeted Monitoring Results

Causes of Impairment
North Carolina Bays and Estuaries 2010

Description of this table

Cause of Impairment	Cause of Impairment Group	Square Miles Threatened or Impaired
Copper	Metals (other than Mercury)	631.4
Chlorophyll-A	Algal Growth	122.7
Dioxin (Including 2,3,7,8-TCDD)	Dioxins	110.7
Turbidity	Turbidity	78.8
Shellfish Growing Area-Conditionally Approved Closed	Pathogens	62.6
Shellfish Growing Area-Prohibited	Pathogens	44.8
pH	pH/Acidity/Caustic Conditions	38.5
Nickel	Metals (other than Mercury)	24.0
Dissolved Oxygen	Organic Enrichment/Oxygen Depletion	10.3
pH, Low	pH/Acidity/Caustic Conditions	9.9
Shellfish Growing Area-Conditionally Approved Open	Pathogens	9.6
Enterococcus Bacteria	Pathogens	4.3
Arsenic	Metals (other than Mercury)	2.8
Mercury in Fish Tissue	Mercury	2.4
Recreation Advisory Postings	Other Cause	.7
Fecal Coliform	Pathogens	.6
Ecological/Biological Integrity Benthos	Cause Unknown - Impaired Biota	.1

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Site-specific Targeted Monitoring Results

Probable Sources
North Carolina Bays and Estuaries 2010

No probable sources of impairments reported.

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Site-specific Targeted Monitoring Results

North Carolina Coastal Shoreline 2010

Description of this table Pie chart not displayed because total size for Coastal Shoreline is unavailable. Assessed Status Miles Assessed 329.2 Unassessed Unavailable Total Miles Unavailable

Description of this table Attainment Status Miles Good .0 Threatened .0 Impaired 329.2 Total Miles Assessed 329.2

Description of this table TMDL Development Status Miles All TMDLs completed .0 TMDL alternative .0 Non-pollutant impairment .0 TMDL needed 329.2 Total Threatened and Impaired 329.2

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
North Carolina Coastal Shoreline 2010

* 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
Fishing	329.2	.0	.0	100.0
Primary Contact Recreation	310.6	93.4	.0	6.6
Secondary Contact Recreation	310.6	93.4	.0	6.6

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Site-specific Targeted Monitoring Results

Causes of Impairment
North Carolina Coastal Shoreline 2010

Description of this table

Cause of Impairment	Cause of Impairment Group	Miles Threatened or Impaired
Mercury in Fish Tissue	Mercury	329.2
Enterococcus Bacteria	Pathogens	19.2
Recreation Advisory Postings	Other Cause	14.9

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Site-specific Targeted Monitoring Results

Probable Sources
North Carolina Coastal Shoreline 2010

No probable sources of impairments reported.

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North Carolina Causes of Impairment for Reporting Year 2010

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.
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)
Algal Growth	32.5	66,842.1	122.7
Ammonia	12.9
Cause Unknown - Impaired Biota	1,882.1		.1
Dioxins	39.4	15,600.4	110.7
Mercury	920.9	31,958.0	2.4	329.2
Metals (other than Mercury)	364.7	1,291.0	632.0
Noxious Aquatic Plants	7.5	4,350.9
Nutrients	11.9	75.3
Organic Enrichment/Oxygen Depletion	177.5	758.2	10.3
Other Cause			.7	14.9
Pathogens	411.4	170.6	119.8	19.2
pH/Acidity/Caustic Conditions	43.2	36,790.4	48.5
Polychlorinated Biphenyls (PCBs)	39.8
Salinity/Total Dissolved Solids/Chlorides/Sulfates	3.4
Sediment	6.9
Total Toxics	.8
Turbidity	956.5	29,768.5	78.8

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North Carolina Probable Sources Contributing to Impairments
for Reporting Year 2010

No probable sources reported.

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North Carolina TMDL Alternatives by Cause of Impairment 2010

No TMDL Alternatives reported.

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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.
Year Attaining	Number of Waters Attaining	Number of Causes of Impairment Addressed
2007	54	58
2010	64	70

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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	759
Cause Unknown - Impaired Biota	336
Turbidity	109
Metals (other than Mercury)	99
Mercury	98
Algal Growth	60
Organic Enrichment/Oxygen Depletion	32
pH/Acidity/Caustic Conditions	29
Other Cause	14
Dioxins	7
Polychlorinated Biphenyls (PCBs)	7
Noxious Aquatic Plants	6
Nutrients	5
Ammonia	2
Sediment	1
Salinity/Total Dissolved Solids/Chlorides/Sulfates	1
Total Toxics	1

Total: 1,566 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	122	123
Mercury	36	36
Fecal	15	15
Phosphorus, Total	11	11
Nitrogen, Total	10	10
Total Suspended Solids (TSS)	10	16
Aquatic Weeds	5	5
Dioxin	5	5
Turbidity	5	5
Biological Integrity	4	4
Pollutants in Urban Stormwater	3	3
Alkalinity	2	2
Nitrogen	2	2
Copper	1	1
Dissolved Oxygen	1	1

Total: 232 TMDLs; 240 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	12
2006	7	7
2007	24	24
2008	1	1
2009	20	20
2010	32	32
2011	21	28
2012	21	21
2013	13	13

Total: 232 TMDLs; 240 Causes of Impairment Addressed

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