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Assessment Data for the State of Alaska Year 2004

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The 2004 National Assessment
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Total Assessed Waters for the State of Alaska

Description of this table

Size Of Water
Rivers, Streams, Creeks (Miles) Lakes, Ponds, Reservoir (Acres) Bays, Estuaries (Square Miles) Coastal Shorelines (Miles) Oceans, Near Coastal Waters (Square Miles) Wetlands (Acres) Great Lakes Shoreline (Miles) Great Lakes Open Water (Square Miles) Inland Lake Shoreline (Miles)
Total Assessed Waters 4,408.89 986,124.24 10,376.91 39.45 .00 .00 .00 .00 .00
Estimated Total Water Size in AK 365,000.00 12,787,200.00 33,204.00 36,000.00 Unavailable Unavailable Unavailable Unavailable Unavailable
Percent of Waters Assessed 1.21 7.71 31.25 .11 Unavailable Unavailable Unavailable Unavailable Unavailable

Assessed Waters of Alaska by Watershed (8 Digit USGS Cataloging Unit)

Description of this table
Watershed Size of Water
Rivers, Streams, Creeks (Miles) Lakes, Ponds, Reservoir (Acres) Bays, Estuaries (Square Miles) Coastal Shorelines (Miles) Oceans, Near Coastal Waters (Square Miles) Wetlands (Acres) Great Lakes Shoreline (Miles) Great Lakes Open Water (Square Miles) Inland Lake Shoreline (Miles)
8-digit HUC Name Not Reported .00 288.00 .00 .00 .00 .00 .00 .00 .00
ADMIRALTY ISLAND 10.00 .00 3.50 .00 .00 .00 .00 .00 .00
ANCHORAGE 111.70 5,889.40 10,000.00 .00 .00 .00 .00 .00 .00
ANIAK 1.30 .00 .00 .00 .00 .00 .00 .00 .00
BARANOF-CHICHAGOF ISLANDS 37.00 83.00 13.36 .00 .00 .00 .00 .00 .00
BIRCH-BEAVER CREEKS 95.50 .00 .00 .00 .00 .00 .00 .00 .00
CHANDLER-ANAKTUVUK RIVERS 1.00 .00 .00 .00 .00 .00 .00 .00 .00
CHENA RIVER 479.50 15.00 .00 .00 .00 .00 .00 .00 .00
CHILKAT-SKAGWAY RIVERS 56.00 1.00 .00 .00 .00 .00 .00 .00 .00
COLD BAY 54.00 .00 .01 5.00 .00 .00 .00 .00 .00
DELTA RIVER .00 160.00 .00 .00 .00 .00 .00 .00 .00
EAGLE TO CIRCLE 12.00 .00 .00 .00 .00 .00 .00 .00 .00
EASTERN PRINCE WILLIAM SOUND .00 320.10 .06 .00 .00 .00 .00 .00 .00
EGEGIK BAY 64.25 .00 .00 .00 .00 .00 .00 .00 .00
FORTYMILE RIVER 40.00 .00 .00 .00 .00 .00 .00 .00 .00
FOX ISLANDS .00 2.25 4.35 .00 .00 .00 .00 .00 .00
GALENA 31.00 .00 .00 .00 .00 .00 .00 .00 .00
HEALY LAKE 20.00 600.00 .00 .00 .00 .00 .00 .00 .00
KANTISHNA RIVER 122.00 .00 .00 .00 .00 .00 .00 .00 .00
KETCHIKAN 20.80 .00 .59 .00 .00 .00 .00 .00 .00
KODIAK-AFOGNAK ISLANDS 13.50 969.49 5.54 .00 .00 .00 .00 .00 .00
KOYUKUK FLATS 130.00 .00 .00 .00 .00 .00 .00 .00 .00
KUIU-KUPREANOF-MITKOF-ETOLIN-ZAREMBO-WRANGELL ISLANDS 6.50 .00 6.02 15.20 .00 .00 .00 .00 .00
KUPARUK RIVER 200.00 .00 .00 .00 .00 .00 .00 .00 .00
KUSKOKWIM DELTA 102.00 .00 .00 .00 .00 .00 .00 .00 .00
LAKE CLARK .00 103.00 .00 .00 .00 .00 .00 .00 .00
LAKE ILIAMNA 75.00 960,000.00 .00 .00 .00 .00 .00 .00 .00
LOWER COPPER RIVER 250.00 .00 .00 .00 .00 .00 .00 .00 .00
LOWER KENAI PENINSULA 208.25 256.00 263.72 .00 .00 .00 .00 .00 .00
LOWER KOBUK RIVER 280.00 .00 .00 .00 .00 .00 .00 .00 .00
LOWER NUSHAGAK RIVER 18.00 .00 .00 .00 .00 .00 .00 .00 .00
LOWER SUSITNA RIVER 260.00 7,635.60 3.70 .00 .00 .00 .00 .00 .00
LYNN CANAL 46.30 475.00 18.00 19.00 .00 .00 .00 .00 .00
MAINLAND .00 .00 .00 .00 .00 .00 .00 .00 .00
MATANUSKA 87.50 509.00 .00 .00 .00 .00 .00 .00 .00
MELOZITNA RIVER 10.00 .00 .00 .00 .00 .00 .00 .00 .00
MIDDLE COPPER RIVER 60.00 704.00 .00 .00 .00 .00 .00 .00 .00
MULCHATNA RIVER 23.03 .00 .00 .00 .00 .00 .00 .00 .00
NAKNEK 9.80 .00 .00 .00 .00 .00 .00 .00 .00
NEBESNA-CHISANA RIVERS 4.70 .00 .00 .00 .00 .00 .00 .00 .00
NENANA RIVER 21.00 .00 .00 .00 .00 .00 .00 .00 .00
NOME 214.50 .00 .00 .00 .00 .00 .00 .00 .00
NORTH FORK KUSKOKWIM RIVER .00 .00 .00 .00 .00 .00 .00 .00 .00
PORCUPINE FLATS 200.00 480.00 .00 .00 .00 .00 .00 .00 .00
PRIBILOF ISLANDS .00 .00 .10 .00 .00 .00 .00 .00 .00
PRINCE OF WALES 75.45 320.00 4.05 .00 .00 .00 .00 .00 .00
RAMPARTS 22.00 .00 .00 .00 .00 .00 .00 .00 .00
SAGAVANIRKTOK RIVER 120.00 700.00 20.00 .00 .00 .00 .00 .00 .00
SALCHA RIVER 5.00 2,659.00 .00 .00 .00 .00 .00 .00 .00
SELAWIK LAKE .00 6.40 .00 .00 .00 .00 .00 .00 .00
SOUTHEAST MAINLAND 2.50 .00 .00 .00 .00 .00 .00 .00 .00
ST. LAWRENCE ISLAND 10.00 800.00 .00 .00 .00 .00 .00 .00 .00
TALKEETNA RIVER 15.84 .00 .00 .00 .00 .00 .00 .00 .00
TANANA FLATS 74.00 2,400.00 .00 .00 .00 .00 .00 .00 .00
TOK 16.10 .00 .00 .00 .00 .00 .00 .00 .00
TOLOVANA RIVER 70.02 .00 .00 .00 .00 .00 .00 .00 .00
TUXDENI-KAMISHAK BAYS .00 .00 28.00 .00 .00 .00 .00 .00 .00
UGASHIK BAY 1.00 .00 .00 .00 .00 .00 .00 .00 .00
UPPER COPPER RIVER .00 682.00 .00 .00 .00 .00 .00 .00 .00
UPPER KENAI PENINSULA 178.50 1.00 4.90 .00 .00 .00 .00 .00 .00
UPPER NUSHAGAK RIVER 2.30 64.00 .00 .00 .00 .00 .00 .00 .00
UPPER SUSITNA RIVER 5.80 1.00 .00 .00 .00 .00 .00 .00 .00
WESTERN ALEUTIAN ISLANDS 1.25 .00 1.00 .00 .00 .00 .00 .00 .00
WESTERN PRINCE WILLIAM SOUND 14.00 .00 .00 .25 .00 .00 .00 .00 .00
WOOD RIVER 262.00 .00 .00 .00 .00 .00 .00 .00 .00
WULIK-KIVALINA RIVERS 122.00 .00 .00 .00 .00 .00 .00 .00 .00
YAKUTAT BAY 24.00 .00 .00 .00 .00 .00 .00 .00 .00
YENTNA RIVER 11.00 .00 .00 .00 .00 .00 .00 .00 .00


Alaska Assessed Waters
Individual Use Support for Rivers and Streams

Description of this table
State Designated Use Total Miles Assessed Percent Good Percent Threatened Percent Impaired color.gif% Good
color.gif% Threatened
color.gif% Impaired
OVERALL USE SUPPORT 4,408.89 90.58 .00 9.42 color.gifcolor.gif
The state assessed 4,408.89 miles of rivers and streams, or 1.21% of 365,000.00 total miles.

Alaska Assessed Waters
Water Quality Attainment for Rivers and Streams

Description of this table
Attainment Status Miles Percent of Assessed
Good 3,993.64 90.58
Threatened .00 .00
Impaired 415.25 9.42
Total Miles Assessed 4,408.89 100.00

Alaska Top Causes of Impairments
for Rivers and Streams

Description of this table
# State Cause Name Total
Miles
Impaired
1 TURBIDITY 212.60
2 SEDIMENT 66.50
3 PATHOGENS 62.20
4 OIL AND GREASE 59.25
5 METALS 43.20
6 AMMONIA (UN-IONIZED) 40.00
7 DISSOLVED INORG SUBSTANCE 40.00
8 RESIDUES (DEBRIS, SLUDGE) 32.50
9 PRIORITY ORGANICS 31.25
10 ORGANIC ENRICHMENT/LOW DO 20.00

Alaska Top Probable Sources of Impairments
for Rivers and Streams

Description of this table
# State Source Name Total Miles Impaired by Source
1 RESOURCE EXTRACTION 228.30
2 PLACER MINING 181.60
3 MUNICIPAL (URBANIZED HIGH DENSITY AREA) 143.20
4 OTHER URBAN RUNOFF 93.90
5 NON-INDUSTRIAL PERMITTED 62.90
6 SURFACE MINING 41.00
7 MUNICIPAL POINT SOURCE DISCHARGES 40.00
8 MAJOR MUNICIPAL POINT SOURCE 40.00
9 LAND DISPOSAL 32.30
10 HABITAT MODIFICATION (OTHER THAN HYDROMODIFICATION) 21.00

Alaska Assessed Waters
Individual Use Support for Lakes, Ponds and Reservoirs

Description of this table
State Designated Use Total Acres Assessed Percent Good Percent Threatened Percent Impaired color.gif% Good
color.gif% Threatened
color.gif% Impaired
OVERALL USE SUPPORT 986,124.24 99.80 .00 .20 color.gifcolor.gif
The state assessed 986,124.24 acres of lakes, ponds and reservoirs, or 7.71% of 12,787,200.00 total acres.

Alaska Assessed Waters
Water Quality Attainment for Lakes, Ponds and Reservoirs

Description of this table
Attainment Status Acres Percent of Assessed
Good 984,135.14 99.80
Threatened .00 .00
Impaired 1,989.10 .20
Total Acres Assessed 986,124.24 100.00

Alaska Top Causes of Impairments
for Lakes, Ponds and Reservoirs

Description of this table
# State Cause Name Total
Acres
Impaired
1 ORGANIC ENRICHMENT/LOW DO 1,137.00
2 PATHOGENS 850.00
3 PRIORITY ORGANICS 2.10
4 METALS 2.00
5 OIL AND GREASE .10

Alaska Top Probable Sources of Impairments
for Lakes, Ponds and Reservoirs

Description of this table
# State Source Name Total Acres Impaired by Source
1 OTHER URBAN RUNOFF 1,157.00
2 MUNICIPAL (URBANIZED HIGH DENSITY AREA) 1,157.00
3 NON-INDUSTRIAL PERMITTED 1,157.00
4 LAND DISPOSAL 832.00
5 ON-SITE TREATMENT SYSTEMS (SEPTIC SYSTEMS AND SIMILAR DECENCENTRALIZED SYSTEMS) 830.00
6 MILITARY 2.00
7 LANDFILLS 2.00

Alaska Assessed Waters
Individual Use Support for Bays and Estuaries

Description of this table
State Designated Use Total Square Miles Assessed Percent Good Percent Threatened Percent Impaired color.gif% Good
color.gif% Threatened
color.gif% Impaired
OVERALL USE SUPPORT 10,376.91 99.94 .00 .06 color.gifcolor.gif
The state assessed 10,376.91 square miles of bays and estuaries, or 31.25% of 33,204.00 total square miles.

Alaska Assessed Waters
Water Quality Attainment for Bays and Estuaries

Description of this table
Attainment Status Square Miles Percent of Assessed
Good 10,371.11 99.94
Threatened .00 .00
Impaired 5.80 .06
Total Square Miles Assessed 10,376.91 100.00

Alaska Top Causes of Impairments
for Bays and Estuaries

Description of this table
# State Cause Name Total
Square Miles
Impaired
1 METALS 4.90
2 RESIDUES (DEBRIS, SLUDGE) .80
3 ORGANIC ENRICHMENT/LOW DO .74
4 DIOXIN (INCLUDING 2,3,7,8-TCDD) .33
5 OIL AND GREASE .10
6 PRIORITY ORGANICS .10
7 SEDIMENT .00

Alaska Top Probable Sources of Impairments
for Bays and Estuaries

Description of this table
# State Source Name Total Square Miles Impaired by Source
1 MILITARY 4.90
2 INDUSTRIAL POINT SOURCE DISCHARGE .74
3 MUNICIPAL (URBANIZED HIGH DENSITY AREA) .73
4 HISTORIC BOTTOM DEPOSITS (NOT SEDIMENT) .73
5 INDUSTRIAL PERMITTED .72
6 LAND DISPOSAL .72
7 MAJOR INDUSTRIAL POINT SOURCE .72
8 CONTAMINATED SEDIMENTS .72
9 LANDFILLS .72
10 LAND APPLICATION OF WASTEWATER (NON-AGRICULTURAL) .72

Alaska Assessed Waters
Individual Use Support for Coastal Shorelines

Description of this table
State Designated Use Total Miles Assessed Percent Good Percent Threatened Percent Impaired color.gif% Good
color.gif% Threatened
color.gif% Impaired
OVERALL USE SUPPORT 39.45 86.19 .00 13.81 color.gifcolor.gif
The state assessed 39.45 miles of coastal shorelines, or .11% of 36,000.00 total miles.

Alaska Assessed Waters
Water Quality Attainment for Coastal Shorelines

Description of this table
Attainment Status Miles Percent of Assessed
Good 34.00 86.19
Threatened .00 .00
Impaired 5.45 13.81
Total Miles Assessed 39.45 100.00

Alaska Top Causes of Impairments
for Coastal Shorelines

Description of this table
# State Cause Name Total
Miles
Impaired
1 RESIDUES (DEBRIS, SLUDGE) 5.20
2 OIL AND GREASE .25

Alaska Top Probable Sources of Impairments
for Coastal Shorelines

Description of this table
# State Source Name Total Miles Impaired by Source
1 SEAFOOD PROCESSING OPERATIONS 5.20
2 INDUSTRIAL POINT SOURCE DISCHARGE 5.00

Alaska

Causes of Impairment

Description of this table
State Cause Name Size of Assessed Waters with Listed Causes of Impairment
Rivers, Streams, Creeks (Miles) Lakes, Ponds, Reservoir (Acres) Bays, Estuaries (Square Miles) Coastal Shorelines (Miles) Oceans, Near Coastal Waters (Square Miles) Wetlands (Acres) Great Lakes Shoreline (Miles) Great Lakes Open Waters (Square Miles) Inland Lake Shoreline (Miles)
AMMONIA (UN-IONIZED) 40.00 .00 .00 .00 .00 .00 .00 .00 .00
ARSENIC 1.00 .00 .00 .00 .00 .00 .00 .00 .00
CADMIUM 1.00 .00 .00 .00 .00 .00 .00 .00 .00
DIOXIN (INCLUDING 2,3,7,8-TCDD) .00 .00 .33 .00 .00 .00 .00 .00 .00
DISSOLVED INORG SUBSTANCE 40.00 .00 .00 .00 .00 .00 .00 .00 .00
LEAD 1.00 .00 .00 .00 .00 .00 .00 .00 .00
MERCURY 1.00 .00 .00 .00 .00 .00 .00 .00 .00
METALS 43.20 2.00 4.90 .00 .00 .00 .00 .00 .00
NUTRIENTS 13.00 .00 .00 .00 .00 .00 .00 .00 .00
OIL AND GREASE 59.25 .10 .10 .25 .00 .00 .00 .00 .00
ORGANIC ENRICHMENT/LOW DO 20.00 1,137.00 .74 .00 .00 .00 .00 .00 .00
OTHER HABITAT ALTERATIONS 13.00 .00 .00 .00 .00 .00 .00 .00 .00
PATHOGENS 62.20 850.00 .00 .00 .00 .00 .00 .00 .00
POLYCHLORINATED BIPHENYLS 4.50 .00 .00 .00 .00 .00 .00 .00 .00
PRIORITY ORGANICS 31.25 2.10 .10 .00 .00 .00 .00 .00 .00
RESIDUES (DEBRIS, SLUDGE) 32.50 .00 .80 5.20 .00 .00 .00 .00 .00
SALINITY/TDS/CHLORIDES 13.00 .00 .00 .00 .00 .00 .00 .00 .00
SEDIMENT 66.50 .00 .00 .00 .00 .00 .00 .00 .00
SILTATION 13.00 .00 .00 .00 .00 .00 .00 .00 .00
THERMAL MODIFICATIONS 13.00 .00 .00 .00 .00 .00 .00 .00 .00
TURBIDITY 212.60 .00 .00 .00 .00 .00 .00 .00 .00
ZINC 1.00 .00 .00 .00 .00 .00 .00 .00 .00

Alaska

Probable Sources Contributing to Impairment

Description of this table
State Source Name Size of Assessed Waters with Probable Sources of Impairment
Rivers, Streams, Creeks (Miles) Lakes, Ponds, Reservoir (Acres) Bays, Estuaries (Square Miles) Coastal Shorelines (Miles) Oceans, Near Coastal Waters (Square Miles) Wetlands (Acres) Great Lakes Shoreline (Miles) Great Lakes Open Waters (Square Miles) Inland Lake Shoreline (Miles)
ABOVE GROUND STORAGE TANK LEAKS (TANK FARMS) .25 .00 .10 .00 .00 .00 .00 .00 .00
ACID MINE DRAINAGE 2.20 .00 .00 .00 .00 .00 .00 .00 .00
CONSTRUCTION 16.00 .00 .00 .00 .00 .00 .00 .00 .00
CONTAMINATED SEDIMENTS 4.50 .00 .72 .00 .00 .00 .00 .00 .00
DRAINAGE/FILLING/LOSS OF WETLANDS 13.00 .00 .00 .00 .00 .00 .00 .00 .00
EROSION AND SEDIMENTATION 14.00 .00 .00 .00 .00 .00 .00 .00 .00
FLOW ALTERATIONS FROM WATER DIVERSIONS 13.00 .00 .00 .00 .00 .00 .00 .00 .00
FOREST ROADS (ROAD CONSTRUCTION AND USE) 8.50 .00 .00 .00 .00 .00 .00 .00 .00
HABITAT MODIFICATION (OTHER THAN HYDROMODIFICATION) 21.00 .00 .00 .00 .00 .00 .00 .00 .00
HIGHWAY/ROAD/BRIDGE RUNOFF 8.00 .00 .00 .00 .00 .00 .00 .00 .00
HIGHWAYS, ROADS, BRIDGES, INFRASTURCTURE (NEW CONSTRUCTION) 16.00 .00 .00 .00 .00 .00 .00 .00 .00
HISTORIC BOTTOM DEPOSITS (NOT SEDIMENT) .00 .00 .73 .00 .00 .00 .00 .00 .00
HYDROMODIFICATION 13.00 .00 .00 .00 .00 .00 .00 .00 .00
ILLEGAL DUMPS OR OTHER INAPPROPRIATE WASTE DISPOSAL 7.50 .00 .00 .00 .00 .00 .00 .00 .00
IMPACTS FROM ABANDONED MINE LANDS (INACTIVE) 2.50 .00 .00 .00 .00 .00 .00 .00 .00
INDUSTRIAL PERMITTED .00 .00 .72 .00 .00 .00 .00 .00 .00
INDUSTRIAL POINT SOURCE DISCHARGE .00 .00 .74 5.00 .00 .00 .00 .00 .00
LAND APPLICATION OF WASTEWATER (NON-AGRICULTURAL) .00 .00 .72 .00 .00 .00 .00 .00 .00
LAND DISPOSAL 32.30 832.00 .72 .00 .00 .00 .00 .00 .00
LANDFILLS .00 2.00 .72 .00 .00 .00 .00 .00 .00
LEAKING UNDERGROUND STORAGE TANKS .25 .00 .00 .00 .00 .00 .00 .00 .00
LOG STORAGE AREA (TIMBER HARVEST) .00 .00 .02 .00 .00 .00 .00 .00 .00
LOSS OF RIPARIAN HABITAT 8.00 .00 .00 .00 .00 .00 .00 .00 .00
MAJOR INDUSTRIAL POINT SOURCE .00 .00 .72 .00 .00 .00 .00 .00 .00
MAJOR MUNICIPAL POINT SOURCE 40.00 .00 .00 .00 .00 .00 .00 .00 .00
MILITARY 4.50 2.00 4.90 .00 .00 .00 .00 .00 .00
MILL TAILINGS .00 .00 .00 .00 .00 .00 .00 .00 .00
MINE TAILINGS 1.00 .00 .00 .00 .00 .00 .00 .00 .00
MUNICIPAL (URBANIZED HIGH DENSITY AREA) 143.20 1,157.00 .73 .00 .00 .00 .00 .00 .00
MUNICIPAL POINT SOURCE DISCHARGES 40.00 .00 .00 .00 .00 .00 .00 .00 .00
NON-INDUSTRIAL PERMITTED 62.90 1,157.00 .00 .00 .00 .00 .00 .00 .00
ON-SITE TREATMENT SYSTEMS (SEPTIC SYSTEMS AND SIMILAR DECENCENTRALIZED SYSTEMS) 20.30 830.00 .00 .00 .00 .00 .00 .00 .00
OTHER URBAN RUNOFF 93.90 1,157.00 .00 .00 .00 .00 .00 .00 .00
PLACER MINING 181.60 .00 .00 .00 .00 .00 .00 .00 .00
RCRA HAZARDOUS WASTE SITES 4.50 .00 .00 .00 .00 .00 .00 .00 .00
RESOURCE EXTRACTION 228.30 .00 .00 .00 .00 .00 .00 .00 .00
SEAFOOD PROCESSING OPERATIONS .00 .00 .40 5.20 .00 .00 .00 .00 .00
SEPTAGE DISPOSAL .00 .00 .39 .00 .00 .00 .00 .00 .00
SILVICULTURAL POINT SOURCES .00 .00 .03 .00 .00 .00 .00 .00 .00
SILVICULTURE 16.50 .00 .04 .00 .00 .00 .00 .00 .00
SILVICULTURE HARVESTING 16.50 .00 .00 .00 .00 .00 .00 .00 .00
SITE CLEARANCE (LAND DEVELOPMENT OR REDEVELOPMENT) 3.00 .00 .00 .00 .00 .00 .00 .00 .00
SPILLS FROM TRUCKS OR TRAINS 15.25 .00 .00 .00 .00 .00 .00 .00 .00
STREAMBANK MODIFICATIONS/DESTABLIZATION 8.00 .00 .00 .00 .00 .00 .00 .00 .00
SUBSURFACE (HARDROCK) MININING 2.50 .00 .00 .00 .00 .00 .00 .00 .00
SURFACE MINING 41.00 .00 .00 .00 .00 .00 .00 .00 .00

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