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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 Dakota Water Quality Assessment Report

Assessed Waters of North Dakota by Watershed

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Display impaired waters and TMDL information only



Site-specific Targeted Monitoring Summary Results

North Dakota (2012)

Description of this table
 
    47,090.8 181,483.9
       114.3 1,014.1
    4,341.6 12,938.3
           1,403.0     3,702.8
                
           154.8     
           2,783.8     9,235.5
    3,173.8 497,346.5
           643.4     135.0
                
           15.0     
           2,515.4     497,211.5
              .0     .0
                    2,515.4           497,211.5
54,606.2 691,768.7
54,607.0 714,910.0
100.0 96.8

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


Site-specific Targeted Monitoring Results

North Dakota Rivers and Streams 2012

Description of this table

All
Rivers and Streams

54,607.0 Miles of Rivers and Streams

Assessed 54,606.2
Unassessed .8
Total Miles 54,607.0







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Description of this table

Assessed
Rivers and Streams

54,606.2 Miles of
Assessed Rivers and Streams

Good 47,090.8
Threatened 4,341.6
Impaired 3,173.8
Total Miles Assessed 54,606.2







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Description of this table

Threatened and Impaired
Rivers and Streams

7,515.4 Miles of
Threatened and Impaired
Rivers and Streams

2,046.3
.0
169.8
5,299.2
Total Threatened and Impaired 7,515.4

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
North Dakota 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
Agricultural 54,606.2 100.0 .0 .0 color.gif
Fish And Other Aquatic Biota 5,756.5 42.8 40.6 16.6 color.gifcolor.gifcolor.gif
Fish Consumption 497.0 19.2 .0 80.8 color.gifcolor.gif
Industrial 54,606.2 100.0 .0 .0 color.gif
Municipal And Domestic 2,163.5 94.9 5.1 .0 color.gifcolor.gif
Recreation 7,215.3 21.4 51.4 27.2 color.gifcolor.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
North Dakota Rivers and Streams 2012

Description of this table
Fecal Coliform Pathogens color.gif 3,820.1
Physical Substrate Habitat Alterations Habitat Alterations color.gif 2,422.7
Escherichia Coli (E. Coli) Pathogens color.gif 1,881.9
Sedimentation/Siltation Sediment color.gif 1,783.1
Combination Benthic/Fishes Bioassessments Cause Unknown - Impaired Biota color.gif 604.3
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 453.7
Benthic Macroinvertebrates Bioassessments Cause Unknown - Impaired Biota color.gif 421.4
Methylmercury Mercury color.gif 401.5
Fish Bioassessments Cause Unknown - Impaired Biota color.gif 394.2
Low Flow Alterations Flow Alteration(s) color.gif 253.7
Selenium Metals (other than Mercury) color.gif 213.4
Cadmium Metals (other than Mercury) color.gif 191.1
Arsenic Metals (other than Mercury) color.gif 111.0
Lead Metals (other than Mercury) color.gif 78.1
Copper Metals (other than Mercury) color.gif 78.1
Nutrient/Eutrophication Biological Indicators Nutrients color.gif 51.4
Temperature, Water Temperature color.gif 40.7
Chloride Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 30.4
Other Flow Regime Alterations Flow Alteration(s) color.gif 20.6
Total Dissolved Solids (TDS) Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 5.5
Non-Native Aquatic Plants Nuisance Exotic Species color.gif 5.5

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Site-specific Targeted Monitoring Results

Probable Sources
North Dakota Rivers and Streams 2012

Description of this table
Grazing In Riparian Or Shoreline Zones Agriculture color.gif 5,796.7
Animal Feeding Operations (Nps) Agriculture color.gif 3,909.4
Crop Production (Crop Land Or Dry Land) Agriculture color.gif 2,548.8
Loss Of Riparian Habitat Habitat Alterations (Not Directly Related To Hydromodification) color.gif 2,415.4
Source Unknown Unknown color.gif 1,147.9
Highway/Road/Bridge Runoff (Non-Construction Related) Urban-Related Runoff/Stormwater color.gif 613.3
On-Site Treatment Systems (Septic Systems And Similar Decentralized Systems) Municipal Discharges/Sewage color.gif 589.4
Livestock (Grazing Or Feeding Operations) Agriculture color.gif 573.5
Channel Erosion/Incision From Upstream Hydromodifications Hydromodification color.gif 530.3
Streambank Modifications/Destabilization Hydromodification color.gif 506.3
Drainage/Filling/Loss Of Wetlands Habitat Alterations (Not Directly Related To Hydromodification) color.gif 449.8
Rangeland Grazing Agriculture color.gif 411.9
Upstream Impoundments (E.G., Pl-566 Nrcs Structures) Hydromodification color.gif 313.5
Channelization Hydromodification color.gif 276.0
Wet Weather Discharges (Point Source And Combination Of Stormwater, Sso Or Cso) Municipal Discharges/Sewage color.gif 248.3
Impacts From Hydrostructure Flow Regulation/Modification Hydromodification color.gif 226.7
Natural Sources Natural/Wildlife color.gif 207.8
Municipal (Urbanized High Density Area) Urban-Related Runoff/Stormwater color.gif 187.2
Municipal Point Source Discharges Municipal Discharges/Sewage color.gif 154.4
Wildlife Other Than Waterfowl Natural/Wildlife color.gif 146.1
Site Clearance (Land Development Or Redevelopment) Construction color.gif 110.8
Industrial Point Source Discharge Industrial color.gif 79.6
Sources Outside State Jurisdiction Or Borders Other color.gif 59.6
Wet Weather Discharges (Non-Point Source) Urban-Related Runoff/Stormwater color.gif 56.1
Post-Development Erosion And Sedimentation Hydromodification color.gif 32.3
Waterfowl Natural/Wildlife color.gif 15.3
Dam Construction (Other Than Upstream Flood Control Projects) Hydromodification color.gif 13.1
Clean Sediments Hydromodification color.gif 13.1
Golf Courses Recreation And Tourism (Non-Boating) color.gif 13.0
Flow Alterations From Water Diversions Hydromodification color.gif 5.5

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Site-specific Targeted Monitoring Results

North Dakota Lakes, Reservoirs, and Ponds 2012

Description of this table

All
Lakes, Reservoirs, and Ponds

714,910.0 Acres of Lakes, Reservoirs, and Ponds

Assessed 691,768.7
Unassessed 23,141.3
Total Acres 714,910.0







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Description of this table

Assessed
Lakes, Reservoirs, and Ponds

691,768.7 Acres of
Assessed Lakes, Reservoirs, and Ponds

Good 181,483.9
Threatened 12,938.3
Impaired 497,346.5
Total Acres Assessed 691,768.7







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Description of this table

Threatened and Impaired
Lakes, Reservoirs, and Ponds

510,284.8 Acres of
Threatened and Impaired
Lakes, Reservoirs, and Ponds

3,837.8
.0
.0
506,447.0
Total Threatened and Impaired 510,284.8

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
North Dakota 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
Agricultural 691,768.7 100.0 .0 .0 color.gif
Fish And Other Aquatic Biota 682,964.4 98.7 1.2 .1 color.gifcolor.gifcolor.gif
Fish Consumption 604,106.0 18.7 .0 81.3 color.gifcolor.gif
Industrial 691,768.7 100.0 .0 .0 color.gif
Municipal And Domestic 368,762.0 100.0 .0 .0 color.gif
Recreation 683,319.0 96.5 2.6 .9 color.gifcolor.gifcolor.gif

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Site-specific Targeted Monitoring Results

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

Description of this table
Methylmercury Mercury color.gif 490,946.0
Nutrient/Eutrophication Biological Indicators Nutrients color.gif 24,121.5
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 6,170.0
Sedimentation/Siltation Sediment color.gif 4,185.0
Turbidity Turbidity color.gif 1,191.0
Total Dissolved Solids (TDS) Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 36.8

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Site-specific Targeted Monitoring Results

Probable Sources
North Dakota Lakes, Reservoirs, and Ponds 2012

Description of this table
Atmospheric Deposition - Toxics Atmospheric Deposition color.gif 490,946.0
Source Unknown Unknown color.gif 485,928.0
Crop Production (Crop Land Or Dry Land) Agriculture color.gif 24,058.5
Internal Nutrient Recycling Natural/Wildlife color.gif 21,531.3
Livestock (Grazing Or Feeding Operations) Agriculture color.gif 16,794.3
Grazing In Riparian Or Shoreline Zones Agriculture color.gif 14,495.5
Animal Feeding Operations (Nps) Agriculture color.gif 13,881.4
On-Site Treatment Systems (Septic Systems And Similar Decentralized Systems) Municipal Discharges/Sewage color.gif 9,607.2
Rangeland Grazing Agriculture color.gif 8,073.9
Drainage/Filling/Loss Of Wetlands Habitat Alterations (Not Directly Related To Hydromodification) color.gif 8,046.3
Littoral/Shore Area Modifications (Non-Riverine) Habitat Alterations (Not Directly Related To Hydromodification) color.gif 7,648.9
Changes In Ordinary Stratification And Bottom Water Hypoxia/Anoxia Natural/Wildlife color.gif 6,170.0
Sediment Resuspension (Clean Sediment) Hydromodification color.gif 2,141.6
Upstream Impoundments (E.G., Pl-566 Nrcs Structures) Hydromodification color.gif 2,073.4
Waterfowl Natural/Wildlife color.gif 2,073.4
Streambank Modifications/Destabilization Hydromodification color.gif 392.5
Loss Of Riparian Habitat Habitat Alterations (Not Directly Related To Hydromodification) color.gif 194.0
Wet Weather Discharges (Point Source And Combination Of Stormwater, Sso Or Cso) Municipal Discharges/Sewage color.gif 63.3
Land Application Of Wastewater Biosolids (Non-Agricultural) Land Application/Waste Sites/Tanks color.gif 55.2
Septage Disposal Municipal Discharges/Sewage color.gif 55.2
Highway/Road/Bridge Runoff (Non-Construction Related) Urban-Related Runoff/Stormwater color.gif 36.8
Flow Alterations From Water Diversions Hydromodification color.gif 36.8

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North Dakota 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
Cause Unknown - Impaired Biota 1,419.9
Flow Alteration(s) 274.3
Habitat Alterations 2,422.7
Mercury 401.5 490,946.0
Metals (other than Mercury) 213.4
Nuisance Exotic Species 5.5
Nutrients 51.4 24,121.5
Organic Enrichment/Oxygen Depletion 453.7 6,170.0
Pathogens 5,667.9
Salinity/Total Dissolved Solids/Chlorides/Sulfates 35.9 36.8
Sediment 1,783.1 4,185.0
Temperature 40.7
Turbidity 1,191.0

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North Dakota Probable Sources Contributing to Impairments
for Reporting Year 2012

Description of this table
NOTE: Click on the underlined Probable Source Group to see a list of specific state Probable Sources making up the Probable Source Group.
Size of Assessed Waters with Probable Sources of Impairments
Agriculture 6,261.8 24,244.0
Atmospheric Deposition 490,946.0
Construction 110.8
Habitat Alterations (Not Directly Related To Hydromodification) 2,456.8 13,621.8
Hydromodification 993.7 4,644.3
Industrial 79.6
Land Application/Waste Sites/Tanks 55.2
Municipal Discharges/Sewage 778.9 9,725.7
Natural/Wildlife 369.2 22,129.1
Other 59.6
Recreation And Tourism (Non-Boating) 13.0
Unknown 1,147.9 485,928.0
Urban-Related Runoff/Stormwater 748.1 36.8

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North Dakota TMDL Alternatives by Cause of Impairment 2012


No TMDL Alternatives reported.

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North Dakota 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.
2003 color.gif 1 2
2004 color.gif 1 1
2008 color.gif 2 4
2013 color.gif 3 4

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North Dakota 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 84
Sediment color.gif 67
Cause Unknown - Impaired Biota color.gif 51
Metals (other than Mercury) color.gif 43
Nutrients color.gif 23
Mercury color.gif 22
Organic Enrichment/Oxygen Depletion color.gif 18
Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 3
Temperature color.gif 1

Total: 312 Causes of Impairment

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North Dakota 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
Fecal Coliform color.gif 52 56
Escherichia Coli (E. Coli) color.gif 27 27
Phosphorus color.gif 27 45
Dissolved Oxygen color.gif 12 12
Sediment color.gif 8 9
Nutrients color.gif 5 5

Total: 131 TMDLs; 154 Causes of Impairment Addressed


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North Dakota 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.
1997 color.gif 11 11
2004 color.gif 8 12
2005 color.gif 1 1
2006 color.gif 6 6
2007 color.gif 10 10
2008 color.gif 7 19
2009 color.gif 26 30
2010 color.gif 22 22
2011 color.gif 16 16
2012 color.gif 8 8
2013 color.gif 16 19

Total: 131 TMDLs; 154 Causes of Impairment Addressed

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