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On This Page 303(d) Listed Waters for 2010

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

Waterbody Changes from Prior Cycle

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Alaska Water Quality Assessment Report

Assessed Waters of Alaska by Watershed

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Display impaired waters and TMDL information only



Site-specific Targeted Monitoring Summary Results

Alaska (2010)

Description of this table
 
    158.4 3,427.0 30.7
       24.1
   
                          
                          
                          
                          
    443.4 2,554.1 .7 17.6
           146.8     995.0     .7     
           6.2          .0     12.6
                          
           290.4     1,559.1     .0     5.0
              .0     1,252.0     .0     .0
                    290.4           307.1           .0           5.0
601.8 5,981.1 31.4 17.6
365,000.0 12,787,200.0 33,204.0 36,000.0
.2 .0 .1 .0

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


Site-specific Targeted Monitoring Results

Alaska Rivers and Streams 2010

Description of this table

All
Rivers and Streams

365,000.0 Miles of Rivers and Streams

Assessed 601.8
Unassessed 364,398.2
Total Miles 365,000.0







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Description of this table

Assessed
Rivers and Streams

601.8 Miles of
Assessed Rivers and Streams

Good 158.4
Threatened .0
Impaired 443.4
Total Miles Assessed 601.8







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Description of this table

Threatened and Impaired
Rivers and Streams

443.4 Miles of
Threatened and Impaired
Rivers and Streams

146.8
6.2
.0
290.4
Total Threatened and Impaired 443.4

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Alaska Rivers and Streams 2010

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

Description of this table
% Good
% Threatened
% Impaired
Fresh Water / Growth And Propagation Of Fish, Shellfish, Other Aquatic Life And Wildlife 490.4 10.5 .0 89.5 color.gifcolor.gif
Fresh Water / Water Recreation / Contact Recreation 423.5 10.2 .0 89.8 color.gifcolor.gif
Fresh Water / Water Recreation / Secondary Recreation 423.5 10.2 .0 89.8 color.gifcolor.gif
Fresh Water / Water Supply / Agriculture, Including Irrigation And Stock Watering 423.5 10.2 .0 89.8 color.gifcolor.gif
Fresh Water / Water Supply / Aquaculture 423.5 10.2 .0 89.8 color.gifcolor.gif
Fresh Water / Water Supply / Drinking, Culinary, And Food Processing 576.3 23.1 .0 76.9 color.gifcolor.gif
Fresh Water / Water Supply / Industrial 396.5 4.1 .0 95.9 color.gifcolor.gif
Marine Water / Water Supply / Aquaculture 1.0 100.0 .0 .0 color.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Alaska Rivers and Streams 2010

Description of this table
Turbidity Turbidity color.gif 318.0
Fecal Coliform Pathogens color.gif 67.3
Sedimentation/Siltation Sediment color.gif 55.0
Petroleum Hydrocarbons Oil and Grease color.gif 18.3
Debris/Floatables/Trash Trash color.gif 16.0
Copper Metals (other than Mercury) color.gif 14.1
Iron Metals (other than Mercury) color.gif 9.1
Lead Metals (other than Mercury) color.gif 9.0
Chlorine Chlorine color.gif 8.0
Ammonia, Un-ionized Ammonia color.gif 8.0
Silver Metals (other than Mercury) color.gif 8.0
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 7.0
Cadmium Metals (other than Mercury) color.gif 6.1
Manganese Metals (other than Mercury) color.gif 4.7
Polychlorinated Biphenyls (PCBs) Polychlorinated Biphenyls (PCBs) color.gif 4.5
Arsenic Metals (other than Mercury) color.gif 2.9
Aluminum Metals (other than Mercury) color.gif 2.6
Zinc Metals (other than Mercury) color.gif 2.1
Sulfates Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 1.9
Nickel Metals (other than Mercury) color.gif 1.1
Mercury Mercury color.gif .7
Antimony Toxic Inorganics color.gif .7

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Site-specific Targeted Monitoring Results

Probable Sources
Alaska Rivers and Streams 2010

Description of this table
Placer Mining Resource Extraction color.gif 298.5
Highway/Road/Bridge Runoff (Non-Construction Related) Urban-Related Runoff/Stormwater color.gif 90.6
Highways, Roads, Bridges, Infrastructure (New Construction) Construction color.gif 20.0
Urban Runoff/Storm Sewers Urban-Related Runoff/Stormwater color.gif 14.9
Impacts From Hydrostructure Flow Regulation/Modification Hydromodification color.gif 13.0
Post-Development Erosion And Sedimentation Hydromodification color.gif 13.0
Unspecified Domestic Waste Municipal Discharges/Sewage color.gif 11.0
Silviculture Harvesting Silviculture (Forestry) color.gif 8.5
Municipal Point Source Discharges Municipal Discharges/Sewage color.gif 8.0
Site Clearance (Land Development Or Redevelopment) Construction color.gif 7.0
Inappropriate Waste Disposal Spills/Dumping color.gif 7.0
Forest Roads (Road Construction And Use) Silviculture (Forestry) color.gif 6.9
Unspecified Urban Stormwater Urban-Related Runoff/Stormwater color.gif 5.3
Subsurface (Hardrock) Mining Resource Extraction color.gif 4.9
Contaminated Sediments Legacy/Historical Pollutants color.gif 4.5
Nps Pollution From Military Port Facilities Military Bases color.gif 4.5
Silviculture Activities Silviculture (Forestry) color.gif 4.5
Rcra Hazardous Waste Sites Industrial color.gif 4.5
Landfills Land Application/Waste Sites/Tanks color.gif 4.5
Mine Tailings Resource Extraction color.gif 3.7
Impacts From Abandoned Mine Lands (Inactive) Resource Extraction color.gif 2.5
On-Site Treatment Systems (Septic Systems And Similar Decentralized Systems) Municipal Discharges/Sewage color.gif 2.0
Surface Mining Resource Extraction color.gif 1.0
Other Spill Related Impacts Spills/Dumping color.gif .3

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Site-specific Targeted Monitoring Results

Alaska Lakes, Reservoirs, and Ponds 2010

Description of this table

All
Lakes, Reservoirs, and Ponds

12,787,200.0 Acres of Lakes, Reservoirs, and Ponds

Assessed 5,981.1
Unassessed 12,781,218.9
Total Acres 12,787,200.0







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Description of this table

Assessed
Lakes, Reservoirs, and Ponds

5,981.1 Acres of
Assessed Lakes, Reservoirs, and Ponds

Good 3,427.0
Threatened .0
Impaired 2,554.1
Total Acres Assessed 5,981.1







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Description of this table

Threatened and Impaired
Lakes, Reservoirs, and Ponds

2,554.1 Acres of
Threatened and Impaired
Lakes, Reservoirs, and Ponds

2,247.0
.0
.0
307.1
Total Threatened and Impaired 2,554.1

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Alaska 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
% Good
% Threatened
% Impaired
Fresh Water / Growth And Propagation Of Fish, Shellfish, Other Aquatic Life And Wildlife 2,557.1 5.0 .0 95.0 color.gifcolor.gif
Fresh Water / Water Recreation / Contact Recreation 2,474.1 1.8 .0 98.2 color.gifcolor.gif
Fresh Water / Water Recreation / Secondary Recreation 2,474.1 1.8 .0 98.2 color.gifcolor.gif
Fresh Water / Water Supply / Agriculture, Including Irrigation And Stock Watering 2,474.1 1.8 .0 98.2 color.gifcolor.gif
Fresh Water / Water Supply / Aquaculture 2,474.1 1.8 .0 98.2 color.gifcolor.gif
Fresh Water / Water Supply / Drinking, Culinary, And Food Processing 5,898.1 56.7 .0 43.3 color.gifcolor.gif
Fresh Water / Water Supply / Industrial 2,429.1 .0 .0 100.0 color.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Alaska Lakes, Reservoirs, and Ponds 2010

Description of this table
Petroleum Hydrocarbons Oil and Grease color.gif 1,250.1
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 830.0
Dissolved Oxygen Saturation Organic Enrichment/Oxygen Depletion color.gif 307.0
Fecal Coliform Pathogens color.gif 165.0
Manganese Metals (other than Mercury) color.gif 2.0
Iron Metals (other than Mercury) color.gif 2.0

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Site-specific Targeted Monitoring Results

Probable Sources
Alaska Lakes, Reservoirs, and Ponds 2010

Description of this table
Other Recreational Pollution Sources Recreation And Tourism (Non-Boating) color.gif 1,250.0
Unspecified Urban Stormwater Urban-Related Runoff/Stormwater color.gif 1,137.0
Urban Runoff/Storm Sewers Urban-Related Runoff/Stormwater color.gif 870.0
Airports Industrial color.gif 307.0
Highway/Road/Bridge Runoff (Non-Construction Related) Urban-Related Runoff/Stormwater color.gif 125.1
Nps Pollution From Military Base Facilities (Other Than Port Facilities) Military Bases color.gif 2.0
Landfills Land Application/Waste Sites/Tanks color.gif 2.0
Other Spill Related Impacts Spills/Dumping color.gif .1

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Site-specific Targeted Monitoring Results

Alaska Bays and Estuaries 2010

Description of this table

All
Bays and Estuaries

33,204.0 Square Miles of Bays and Estuaries

Assessed 31.4
Unassessed 33,172.6
Total Square Miles 33,204.0







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Description of this table

Assessed
Bays and Estuaries

31.4 Square Miles of
Assessed Bays and Estuaries

Good 30.7
Threatened .0
Impaired .7
Total Square Miles Assessed 31.4







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Description of this table

Threatened and Impaired
Bays and Estuaries

.7 Square Miles of
Threatened and Impaired
Bays and Estuaries

.7
.0
.0
.0
Total Threatened and Impaired .7

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Alaska Bays and Estuaries 2010

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

Description of this table
% Good
% Threatened
% Impaired
Fresh Water / Growth And Propagation Of Fish, Shellfish, Other Aquatic Life And Wildlife 4.9 99.4 .0 .6 color.gifcolor.gif
Fresh Water / Water Recreation / Contact Recreation .0 .0 .0 100.0 color.gif
Fresh Water / Water Recreation / Secondary Recreation .0 .0 .0 100.0 color.gif
Fresh Water / Water Supply / Agriculture, Including Irrigation And Stock Watering .0 .0 .0 100.0 color.gif
Fresh Water / Water Supply / Aquaculture .0 .0 .0 100.0 color.gif
Fresh Water / Water Supply / Drinking, Culinary, And Food Processing .0 .0 .0 100.0 color.gif
Fresh Water / Water Supply / Industrial .0 .0 .0 100.0 color.gif
Marine Water / Growth And Propagation Of Fish, Shellfish, Other Aquatic Life And Wildlife 26.4 97.5 .0 2.5 color.gifcolor.gif
Marine Water / Harvesting For Consumption Of Raw Mollusks Or Other Raw Aquatic Life 6.3 89.4 .0 10.6 color.gifcolor.gif
Marine Water / Water Recreation / Contact Recreation 6.4 89.6 .0 10.4 color.gifcolor.gif
Marine Water / Water Recreation / Secondary Recreation 6.3 89.4 .0 10.6 color.gifcolor.gif
Marine Water / Water Supply / Aquaculture 6.3 89.4 .0 10.6 color.gifcolor.gif
Marine Water / Water Supply / Industrial .7 .3 .0 99.7 color.gifcolor.gif
Marine Water / Water Supply / Seafood Processing 6.4 89.6 .0 10.4 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Alaska Bays and Estuaries 2010

Description of this table
Debris/Floatables/Trash Trash color.gif .6
Ammonia, Total Ammonia color.gif .3
4-Methylphenol Toxic Organics color.gif .3
Sulfide-Hydrogen Sulfide Toxic Inorganics color.gif .3
Biochemical Oxygen Demand (BOD) Organic Enrichment/Oxygen Depletion color.gif .1
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif .1
Copper Metals (other than Mercury) color.gif .0
Bottom Deposits Sediment color.gif .0
Lead Metals (other than Mercury) color.gif .0
Mercury Mercury color.gif .0
Zinc Metals (other than Mercury) color.gif .0
Petroleum Hydrocarbons Oil and Grease color.gif .0
Arsenic Metals (other than Mercury) color.gif .0
Cobalt Metals (other than Mercury) color.gif .0
Silver Metals (other than Mercury) color.gif .0
Manganese Metals (other than Mercury) color.gif .0
Cadmium Metals (other than Mercury) color.gif .0

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Site-specific Targeted Monitoring Results

Probable Sources
Alaska Bays and Estuaries 2010

Description of this table
Industrial Point Source Discharge Industrial color.gif .5
Silviculture Activities Silviculture (Forestry) color.gif .2
Silviculture Harvesting Silviculture (Forestry) color.gif .2
Seafood Processing Operations Aquaculture color.gif .2
Mine Tailings Resource Extraction color.gif .0
Highway/Road/Bridge Runoff (Non-Construction Related) Urban-Related Runoff/Stormwater color.gif .0
Historic Bottom Deposits (Not Sediment) Legacy/Historical Pollutants color.gif .0
Illegal Dumps Or Other Inappropriate Waste Disposal Spills/Dumping color.gif .0
Other Spill Related Impacts Spills/Dumping color.gif .0
Other Shipping Releases (Wastes And Detritus) Commercial Harbor And Port Activities color.gif .0

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Site-specific Targeted Monitoring Results

Alaska Coastal Shoreline 2010

Description of this table

All
Coastal Shoreline

36,000.0 Miles of Coastal Shoreline

Assessed 17.6
Unassessed 35,982.5
Total Miles 36,000.0







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Description of this table

Assessed
Coastal Shoreline

17.6 Miles of
Assessed Coastal Shoreline

Good .0
Threatened .0
Impaired 17.6
Total Miles Assessed 17.6







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Description of this table

Threatened and Impaired
Coastal Shoreline

17.6 Miles of
Threatened and Impaired
Coastal Shoreline

.0
12.6
.0
5.0
Total Threatened and Impaired 17.6

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Alaska Coastal Shoreline 2010

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

Description of this table
% Good
% Threatened
% Impaired
Marine Water / Growth And Propagation Of Fish, Shellfish, Other Aquatic Life And Wildlife 5.0 .0 .0 100.0 color.gif
Marine Water / Harvesting For Consumption Of Raw Mollusks Or Other Raw Aquatic Life 5.0 .0 .0 100.0 color.gif
Marine Water / Water Recreation / Contact Recreation 5.0 .0 .0 100.0 color.gif
Marine Water / Water Recreation / Secondary Recreation 5.0 .0 .0 100.0 color.gif
Marine Water / Water Supply / Aquaculture 17.6 .0 .0 100.0 color.gif
Marine Water / Water Supply / Industrial 5.0 .0 .0 100.0 color.gif
Marine Water / Water Supply / Seafood Processing 5.0 .0 .0 100.0 color.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Alaska Coastal Shoreline 2010

Description of this table
Petroleum Hydrocarbons Oil and Grease color.gif 12.6
Bottom Deposits Sediment color.gif 5.0

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Site-specific Targeted Monitoring Results

Probable Sources
Alaska Coastal Shoreline 2010

Description of this table
Other Spill Related Impacts Spills/Dumping color.gif 12.6
Seafood Processing Operations Aquaculture color.gif 5.0
Industrial Point Source Discharge Industrial color.gif 5.0

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Alaska 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.
Size of Assessed Waters with Listed Causes of Impairment
Ammonia 8.0 .3
Chlorine 8.0
Mercury .7 .0
Metals (other than Mercury) 18.8 2.0 .0
Oil and Grease 18.3 1,250.1 .0 12.6
Organic Enrichment/Oxygen Depletion 7.0 1,137.0 .1
Pathogens 67.3 165.0
Polychlorinated Biphenyls (PCBs) 4.5
Salinity/Total Dissolved Solids/Chlorides/Sulfates 1.9
Sediment 55.0 .0 5.0
Toxic Inorganics .7 .3
Toxic Organics .3
Trash 16.0 .6
Turbidity 318.0

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Alaska Probable Sources Contributing to Impairments
for Reporting Year 2010

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
Aquaculture .2 5.0
Commercial Harbor And Port Activities .0
Construction 20.0
Hydromodification 26.0
Industrial 4.5 307.0 .5 5.0
Land Application/Waste Sites/Tanks 4.5 2.0
Legacy/Historical Pollutants 4.5 .0
Military Bases 4.5 2.0
Municipal Discharges/Sewage 21.0
Recreation And Tourism (Non-Boating) 1,250.0
Resource Extraction 305.9 .0
Silviculture (Forestry) 11.4 .2
Spills/Dumping 7.3 .1 .0 12.6
Urban-Related Runoff/Stormwater 110.8 1,302.1 .0

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Alaska TMDL Alternatives by Cause of Impairment 2010


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.
Petroleum Hydrocarbons color.gif 22     13
Arsenic color.gif 1 2    
Cadmium color.gif 1 2    
Copper color.gif 1 2    
Debris/Floatables/Trash color.gif 1   0  
Iron color.gif 1 2    
Manganese color.gif 1 2    
Sedimentation/Siltation color.gif 1 4    

Total: 29 TMDL Alternatives

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Alaska 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.
2006 color.gif 2 2
2008 color.gif 7 7
2010 color.gif 2 3

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Alaska 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.
Metals (other than Mercury) color.gif 36
Turbidity color.gif 11
Oil and Grease color.gif 8
Sediment color.gif 5
Mercury color.gif 3
Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 2
Toxic Inorganics color.gif 2
Pathogens color.gif 1
Organic Enrichment/Oxygen Depletion color.gif 1
Other Cause color.gif 1
Trash color.gif 1

Total: 71 Causes of Impairment

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Alaska 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 15 15
Residues color.gif 6 6
Dissolved Oxygen color.gif 3 3
Iron color.gif 3 3
Polycyclic Aromatic Hydrocarbons (PAHs) (Aquatic Ecosystems) color.gif 3 3
Turbidity color.gif 3 3
Arsenic color.gif 2 2
Debris color.gif 2 2
Manganese color.gif 2 2
Seafood Residue color.gif 2 2
Sediment color.gif 2 3
Antimony color.gif 1 1
Cobalt color.gif 1 1
Contaminated Sediments (Cadmium) color.gif 1 1
Contaminated Sediments (Copper) color.gif 1 1
Contaminated Sediments (Lead) color.gif 1 1
Contaminated Sediments (Zinc) color.gif 1 1
Copper color.gif 1 1
Lead color.gif 1 1
Mercury color.gif 1 1
Oil and Grease color.gif 1 1
Polychlorinated Biphenyls (PCBs) color.gif 1 1
Silver color.gif 1 1
Total Aromatic Hydrocarbons color.gif 1 1
Toxic & Other Deleterious Substances color.gif 1 1
Zinc color.gif 1 1

Total: 58 TMDLs; 59 Causes of Impairment Addressed


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Alaska 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 1 1
1997 color.gif 3 3
1999 color.gif 2 2
2000 color.gif 4 4
2001