Assessment Data for the State of Alaska Year 2002
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Impaired Water Information
Other Water Assessment Information
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State of Alaska websites: | State 305(b) Water Quality Assessment Report(s) |
|   | State Water Quality Program |
Search for a Waterbody within Alaska
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) | |
| Total Assessed Waters | 1,990.14 | 978,487.34 | 13,471.68 | 25.40 | .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 |
| Percent of Waters Assessed | .55 | 7.65 | 40.57 | .07 | Unavailable | Unavailable | Unavailable | Unavailable |
Assessed Waters of Alaska by Watershed
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) | |
| ADMIRALTY ISLAND | .00 | .00 | 1.00 | .00 | .00 | .00 | .00 | .00 |
| ANCHORAGE | 47.90 | 1,319.00 | 10,000.00 | .00 | .00 | .00 | .00 | .00 |
| BARANOF-CHICHAGOF ISLANDS | 9.00 | 83.00 | 101.25 | .00 | .00 | .00 | .00 | .00 |
| BIRCH-BEAVER CREEKS | 174.50 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CHENA RIVER | 39.50 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CHILKAT-SKAGWAY RIVERS | 3.00 | .00 | 1.00 | .00 | .00 | .00 | .00 | .00 |
| COLD BAY | .00 | .00 | 5.01 | 5.00 | .00 | .00 | .00 | .00 |
| EGEGIK BAY | 60.25 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| FOX ISLANDS | .00 | 2.00 | 16.48 | .00 | .00 | .00 | .00 | .00 |
| KETCHIKAN | .00 | .00 | 17.50 | .00 | .00 | .00 | .00 | .00 |
| KODIAK-AFOGNAK ISLANDS | .00 | .00 | .06 | .00 | .00 | .00 | .00 | .00 |
| KUIU-KUPREANOF-MITKOF-ETOLIN-ZAREMBO-WRANGELL ISLANDS | 1.50 | .00 | 4.00 | .00 | .00 | .00 | .00 | .00 |
| KUSKOKWIM DELTA | 3.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER KENAI PENINSULA | 1.00 | .00 | .25 | .00 | .00 | .00 | .00 | .00 |
| LOWER SUSITNA RIVER | 34.00 | 830.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LYNN CANAL | 23.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MATANUSKA | 67.50 | 125.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NAKNEK | 9.80 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NEBESNA-CHISANA RIVERS | 4.70 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NORTH FORK KUSKOKWIM RIVER | .00 | .00 | .50 | .00 | .00 | .00 | .00 | .00 |
| PRIBILOF ISLANDS | .00 | .00 | .23 | .00 | .00 | .00 | .00 | .00 |
| PRINCE OF WALES | 4.00 | .00 | 6.35 | .00 | .00 | .00 | .00 | .00 |
| SAGAVANIRKTOK RIVER | .00 | .00 | 20.00 | .00 | .00 | .00 | .00 | .00 |
| SALCHA RIVER | .00 | 2,659.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TOK | 16.10 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TOLOVANA RIVER | 70.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER KENAI PENINSULA | 76.00 | .00 | 4.90 | .00 | .00 | .00 | .00 | .00 |
| WULIK-KIVALINA RIVERS | 40.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| Name Not Reported | 1,305.39 | 973,469.34 | 3,293.15 | 20.40 | .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 | ||
|---|---|---|---|---|---|---|
| Fish, Shellfish, and Wildlife Protection and Propagation | 1,915.14 | 73.73 | .00 | 26.27 | ||
| Aquatic Life Harvesting | 75.00 | 100.00 | .00 | .00 | ||
Alaska Assessed Waters
Water Quality Attainment for Rivers and Streams
Description of this table
| Attainment Status | Miles | Percent of Assessed |
| Good | 1,486.99 | 74.72 |
| Threatened | .00 | .00 |
| Impaired | 503.15 | 25.28 |
| Total Miles Assessed | 1,990.14 | 100.00 |
Alaska Top Causes of Impairments
for Rivers and Streams
Description of this table
| # | State Cause Name | Total Miles Impaired |
|---|---|---|
| 1 | SEDIMENTATION/SILTATION | 954.34 |
| 2 | TURBIDITY | 575.84 |
| 3 | FLOW ALTERATION | 552.00 |
| 4 | METALS | 527.70 |
| 5 | PRIORITY ORGANICS | 387.50 |
| 6 | PATHOGENS | 338.60 |
| 7 | NONPRIORITY ORGANICS | 320.00 |
| 8 | OIL AND GREASE | 263.60 |
| 9 | CAUSE UNKNOWN | 242.00 |
| 10 | TOTAL SUSPENDED SOLIDS (TSS) | 201.30 |
Alaska Top Probable Sources of Impairments
for Rivers and Streams
Description of this table
| # | State Source Name | Total Miles Impaired by Source |
|---|---|---|
| 1 | HIGHWAY/ROAD/BRIDGE CONSTRUCTION | 883.60 |
| 2 | STREAMBANK MODIFICATIONS/DESTABLIZATION | 704.84 |
| 3 | SITE CLEARANCE (LAND DEVELOPMENT OR REDEVELOPMENT) | 555.10 |
| 4 | INDUSTRIAL POINT SOURCE DISCHARGE | 518.00 |
| 5 | FLOW ALTERATIONS FROM WATER DIVERSIONS | 512.30 |
| 6 | LOSS OF RIPARIAN HABITAT | 487.60 |
| 7 | MUNICIPAL (URBANIZED HIGH DENSITY AREA) | 487.40 |
| 8 | PLACER MINING | 470.60 |
| 9 | SPILLS FROM TRUCKS OR TRAINS | 385.75 |
| 10 | RECREATION AND TOURISM ACTIVITIES (OTHER THAN BOATING - SEE 7900) | 339.00 |
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 | ||
|---|---|---|---|---|---|---|
| Fish, Shellfish, and Wildlife Protection and Propagation | 17,992.34 | 74.46 | .00 | 25.54 | ||
| Aquatic Life Harvesting | 960,495.00 | 100.00 | .00 | .00 | ||
Alaska Assessed Waters
Water Quality Attainment for Lakes, Ponds and Reservoirs
Description of this table
| Attainment Status | Acres | Percent of Assessed |
| Good | 973,891.34 | 99.53 |
| Threatened | .00 | .00 |
| Impaired | 4,596.00 | .47 |
| Total Acres Assessed | 978,487.34 | 100.00 |
Alaska Top Causes of Impairments
for Lakes, Ponds and Reservoirs
Description of this table
| # | State Cause Name | Total Acres Impaired |
|---|---|---|
| 1 | SEDIMENTATION/SILTATION | 10,078.34 |
| 2 | PATHOGENS | 9,215.09 |
| 3 | OIL AND GREASE | 6,856.34 |
| 4 | ORGANIC ENRICHMENT/LOW DO | 5,698.60 |
| 5 | NONPRIORITY ORGANICS | 5,500.00 |
| 6 | TURBIDITY | 3,100.25 |
| 7 | CHLORINE | 2,400.00 |
| 8 | PRIORITY ORGANICS | 1,600.00 |
| 9 | TOTAL SUSPENDED SOLIDS (TSS) | 703.25 |
| 10 | CAUSE UNKNOWN | 700.00 |
Alaska Top Probable Sources of Impairments
for Lakes, Ponds and Reservoirs
Description of this table
| # | State Source Name | Total Acres Impaired by Source |
|---|---|---|
| 1 | SPILLS FROM TRUCKS OR TRAINS | 967,706.25 |
| 2 | LANDFILLS | 960,850.00 |
| 3 | MUNICIPAL (URBANIZED HIGH DENSITY AREA) | 8,471.34 |
| 4 | LAND DISPOSAL | 8,230.25 |
| 5 | ON-SITE TREATMENT SYSTEMS (SEPTIC SYSTEMS AND SIMILAR DECENTRALIZED SYSTEMS) | 8,147.00 |
| 6 | OTHER URBAN RUNOFF | 6,920.34 |
| 7 | RECREATION AND TOURISM ACTIVITIES (OTHER THAN BOATING - SEE 7900) | 6,070.00 |
| 8 | ABOVE GROUND STORAGE TANK LEAKS (TANK FARMS) | 6,034.49 |
| 9 | SITE CLEARANCE (LAND DEVELOPMENT OR REDEVELOPMENT) | 4,623.85 |
| 10 | HIGHWAY/ROAD/BRIDGE CONSTRUCTION | 4,623.85 |
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 | ||
|---|---|---|---|---|---|---|
| Fish, Shellfish, and Wildlife Protection and Propagation | 13,471.68 | 98.76 | .00 | 1.24 | ||
Alaska Assessed Waters
Water Quality Attainment for Bays and Estuaries
Description of this table
| Attainment Status | Square Miles | Percent of Assessed |
| Good | 13,304.47 | 98.76 |
| Threatened | .00 | .00 |
| Impaired | 167.21 | 1.24 |
| Total Square Miles Assessed | 13,471.68 | 100.00 |
Alaska Top Causes of Impairments
for Bays and Estuaries
Description of this table
| # | State Cause Name | Total Square Miles Impaired |
|---|---|---|
| 1 | METALS | 2,243.25 |
| 2 | RESIDUES (DEBRIS, SLUDGE) | 198.13 |
| 3 | ORGANIC ENRICHMENT/LOW DO | 115.50 |
| 4 | DIOXIN (INCLUDING 2,3,7,8-TCDD) | 100.00 |
| 5 | OIL AND GREASE | 35.41 |
| 6 | PRIORITY ORGANICS | 29.18 |
| 7 | ZINC | 27.95 |
| 8 | TOTAL SUSPENDED SOLIDS (TSS) | 27.95 |
| 9 | TURBIDITY | 26.95 |
| 10 | NONPRIORITY ORGANICS | 26.95 |
Alaska Top Probable Sources of Impairments
for Bays and Estuaries
Description of this table
| # | State Source Name | Total Square Miles Impaired by Source |
|---|---|---|
| 1 | INDUSTRIAL POINT SOURCE DISCHARGE | 2,396.56 |
| 2 | MAJOR INDUSTRIAL POINT SOURCE | 2,342.50 |
| 3 | MINE TAILINGS | 2,242.25 |
| 4 | SUBSURFACE MINING | 2,240.00 |
| 5 | LAND APPLICATION OF WASTEWATER (NON-AGRICULTURAL) | 1,067.82 |
| 6 | ON-SITE TREATMENT SYSTEMS (SEPTIC SYSTEMS AND SIMILAR DECENTRALIZED SYSTEMS) | 990.97 |
| 7 | LAND DISPOSAL | 988.95 |
| 8 | HIGHWAY/ROAD/BRIDGE CONSTRUCTION | 984.27 |
| 9 | SILVICULTURE | 975.20 |
| 10 | SITE CLEARANCE (LAND DEVELOPMENT OR REDEVELOPMENT) | 964.27 |
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 | ||
|---|---|---|---|---|---|---|
| Fish, Shellfish, and Wildlife Protection and Propagation | 25.40 | 62.99 | .00 | 37.01 | ||
Alaska Assessed Waters
Water Quality Attainment for Coastal Shorelines
Description of this table
| Attainment Status | Miles | Percent of Assessed |
| Good | 16.00 | 62.99 |
| Threatened | .00 | .00 |
| Impaired | 9.40 | 37.01 |
| Total Miles Assessed | 25.40 | 100.00 |
Alaska Top Causes of Impairments
for Coastal Shorelines
Description of this table
| # | State Cause Name | Total Miles Impaired |
|---|---|---|
| 1 | OIL AND GREASE | 20.40 |
| 2 | RESIDUES (DEBRIS, SLUDGE) | 20.00 |
| 3 | SEDIMENTATION/SILTATION | 16.00 |
| 4 | PATHOGENS | 15.00 |
| 5 | TURBIDITY | 15.00 |
| 6 | AMMONIA (UNIONIZED) - TOXIN | 1.00 |
| 7 | OTHER INORGANICS | 1.00 |
| 8 | LEAD | 1.00 |
Alaska Top Probable Sources of Impairments
for Coastal Shorelines
Description of this table
| # | State Source Name | Total Miles Impaired by Source |
|---|---|---|
| 1 | MUNICIPAL (URBANIZED HIGH DENSITY AREA) | 16.00 |
| 2 | SEPTAGE DISPOSAL | 15.00 |
| 3 | ON-SITE TREATMENT SYSTEMS (SEPTIC SYSTEMS AND SIMILAR DECENTRALIZED SYSTEMS) | 15.00 |
| 4 | HIGHWAY/ROAD/BRIDGE RUNOFF (NON-CONSTRUCTION RELATED) | 15.00 |
| 5 | INDUSTRIAL POINT SOURCE DISCHARGE | 6.00 |
| 6 | SEAFOOD PROCESSING | 6.00 |
| 7 | SPILLS FROM TRUCKS OR TRAINS | 5.40 |
| 8 | HYDROMODIFICATION | 1.00 |
| 9 | MARINAS | 1.00 |
| 10 | MUNICIPAL POINT SOURCE DISCHARGES | 1.00 |
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 (Squar Miles) | |
| ZINC | 10.00 | .00 | 27.95 | .00 | .00 | .00 | .00 | .00 |
| OTHER | .00 | 224.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ARSENIC | 46.30 | 320.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CAUSE UNKNOWN | 242.00 | 700.00 | .01 | .00 | .00 | .00 | .00 | .00 |
| PRIORITY ORGANICS | 387.50 | 1,600.00 | 29.18 | .00 | .00 | .00 | .00 | .00 |
| TOTAL SUSPENDED SOLIDS (TSS) | 201.30 | 703.25 | 27.95 | .00 | .00 | .00 | .00 | .00 |
| DISSOLVED INORGANIC SUBSTANCE | 40.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| METALS | 527.70 | 202.00 | 2,243.25 | .00 | .00 | .00 | .00 | .00 |
| PATHOGENS | 338.60 | 9,215.09 | 1.01 | 15.00 | .00 | .00 | .00 | .00 |
| OTHER INORGANICS | 142.00 | 621.00 | .00 | 1.00 | .00 | .00 | .00 | .00 |
| UNKNOWN TOXICITY | 12.00 | 1.00 | 1.00 | .00 | .00 | .00 | .00 | .00 |
| AMMONIA (UNIONIZED) - TOXIN | 40.00 | 320.00 | .00 | 1.00 | .00 | .00 | .00 | .00 |
| LEAD | 10.00 | 423.00 | 2.00 | 1.00 | .00 | .00 | .00 | .00 |
| SEDIMENT | 171.60 | 600.00 | 2.78 | .00 | .00 | .00 | .00 | .00 |
| ODOR THRESHOLD NUMBER | 2.00 | 200.00 | 1.00 | .00 | .00 | .00 | .00 | .00 |
| ORGANIC ENRICHMENT/LOW DO | 24.50 | 5,698.60 | 115.50 | .00 | .00 | .00 | .00 | .00 |
| POLYCHLORINATED BIPHENYLS | 9.75 | 200.00 | 1.00 | .00 | .00 | .00 | .00 | .00 |
| DIOXIN (INCLUDING 2,3,7,8-TCDD) | 1.00 | .00 | 100.00 | .00 | .00 | .00 | .00 | .00 |
| MERCURY | 21.30 | 320.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TOTAL TOXICS | 34.30 | .00 | 4.50 | .00 | .00 | .00 | .00 | .00 |
| CHLORINE | .00 | 2,400.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| OIL AND GREASE | 263.60 | 6,856.34 | 35.41 | 20.40 | .00 | .00 | .00 | .00 |
| FLOW ALTERATION | 552.00 | 518.00 | 2.02 | .00 | .00 | .00 | .00 | .00 |
| NONPRIORITY ORGANICS | 320.00 | 5,500.00 | 26.95 | .00 | .00 | .00 | .00 | .00 |
| RESIDUES (DEBRIS, SLUDGE) | 106.00 | 307.25 | 198.13 | 20.00 | .00 | .00 | .00 | .00 |
| PHOSPHORUS, ELEMENTAL | 104.00 | .00 | 4.90 | .00 | .00 | .00 | .00 | .00 |
| SEDIMENTATION/SILTATION | 954.34 | 10,078.34 | 1.00 | 16.00 | .00 | .00 | .00 | .00 |
| PH | 36.50 | .00 | 1.01 | .00 | .00 | .00 | .00 | .00 |
| COPPER | 10.00 | 320.00 | 1.00 | .00 | .00 | .00 | .00 | .00 |
| SALINITY | 135.00 | .00 | 20.00 | .00 | .00 | .00 | .00 | .00 |
| TURBIDITY | 575.84 | 3,100.25 | 26.95 | 15.00 | .00 | .00 | .00 | .00 |
| PESTICIDES | 173.00 | 200.00 | 1.00 | .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) | |
| LAND DISPOSAL | 303.30 | 8,230.25 | 988.95 | .00 | .00 | .00 | .00 | .00 |
| OTHER URBAN RUNOFF | 227.40 | 6,920.34 | 3.97 | 1.00 | .00 | .00 | .00 | .00 |
| RESOURCE EXTRACTION | 303.00 | 700.00 | .25 | .00 | .00 | .00 | .00 | .00 |
| CONTAMINATED SEDIMENTS | 24.50 | .00 | 102.50 | .00 | .00 | .00 | .00 | .00 |
| SILVICULTURE HARVESTING | 70.00 | .00 | 19.90 | .00 | .00 | .00 | .00 | .00 |
| EROSION AND SEDIMENTATION | 20.50 | 600.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NON-IRRIGATED CROP PRODUCTION | 36.00 | 84.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOG STORAGE AREA (TIMBER HARVEST) | .00 | .00 | 25.00 | .00 | .00 | .00 | .00 | .00 |
| FOREST ROADS (ROAD CONSTRUCTION AND USE) | 36.50 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ILLEGAL DUMPS OR OTHER INAPPROPRIATE WASTE DISPOSAL | 53.00 | 83.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| RECREATION AND TOURISM ACTIVITIES (OTHER THAN BOATING - SEE 7900) | 339.00 | 6,070.00 | .05 | .00 | .00 | .00 | .00 | .00 |
| RANGELAND (UNMANAGED PASTURE) GRAZING | .00 | .00 | 2.02 | .00 | .00 | .00 | .00 | .00 |
| IMPACTS FROM ABANDONED MINE LANDS (INACTIVE) | 20.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LAND APPLICATION OF WASTEWATER (NON-AGRICULTURAL) | 185.50 | 103.25 | 1,067.82 | .00 | .00 | .00 | .00 | .00 |
| SITE CLEARANCE (LAND DEVELOPMENT OR REDEVELOPMENT) | 555.10 | 4,623.85 | 964.27 | 1.00 | .00 | .00 | .00 | .00 |
| CONSTRUCTION | 22.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SILVICULTURE | 151.00 | .00 | 975.20 | .00 | .00 | .00 | .00 | .00 |
| LOSS OF RIPARIAN HABITAT | 487.60 | 4,481.00 | 2.02 | .00 | .00 | .00 | .00 | .00 |
| SURFACE MINING | 114.30 | 103.25 | 2.02 | .00 | .00 | .00 | .00 | .00 |
| ABANDONED MINING | 12.50 | 320.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SUBSURFACE MINING | 9.00 | .00 | 2,240.00 | .00 | .00 | .00 | .00 | .00 |
| MAJOR INDUSTRIAL POINT SOURCE | .00 | .00 | 2,342.50 | .00 | .00 | .00 | .00 | .00 |
| CROP PRODUCTION (CROP LAND OR DRY LAND) | 36.00 | 84.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MUNICIPAL (URBANIZED HIGH DENSITY AREA) | 487.40 | 8,471.34 | 106.47 | 16.00 | .00 | .00 | .00 | .00 |
| STREAMBANK MODIFICATIONS/DESTABLIZATION | 704.84 | 3,075.25 | 2.02 | 1.00 | .00 | .00 | .00 | .00 |
| HIGHWAYS, ROADS, BRIDGES, INFRASTRUCTURE (NEW CONSTRUCTION) | 43.00 | 600.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LANDFILLS | 261.80 | 960,850.00 | 107.53 | 1.00 | .00 | .00 | .00 | .00 |
| AGRICULTURE | 68.00 | 164.00 | 2.02 | .00 | .00 | .00 | .00 | .00 |
| MINE TAILINGS | 180.00 | .00 | 2,242.25 | .00 | .00 | .00 | .00 | .00 |
| CHANNELIZATION | 292.50 | 368.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MAJOR MUNICIPAL POINT SOURCE | 40.00 | 200.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LEAKING UNDERGROUND STORAGE TANKS | .25 | 255.00 | .05 | .00 | .00 | .00 | .00 | .00 |
| FLOW ALTERATIONS FROM WATER DIVERSIONS | 512.30 | 1,192.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PASTURE GRAZING - RIPARIAN AND/OR UPLAND | 36.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| DISCHARGES FROM BIOSOLIDS (SLUDGE) STORAGE, APPLICATION OR DISPOSAL | 43.00 | .00 | 1.00 | .00 | .00 | .00 | .00 | .00 |
| MILITARY | 71.55 | 2.25 | 5.91 | .00 | .00 | .00 | .00 | .00 |
| DREDGE MINING | .00 | 1.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NATURAL SOURCES | 75.00 | 80.25 | .00 | .00 | .00 | .00 | .00 | .00 |
| SEPTAGE DISPOSAL | 80.00 | 1,214.00 | 5.80 | 15.00 | .00 | .00 | .00 | .00 |
| COMBINED SEWER OVERFLOWS | .00 | 103.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PASTURE GRAZING - RIPARIAN | 22.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SILVICULTURAL POINT SOURCES | .00 | .00 | 60.02 | .00 | .00 | .00 | .00 | .00 |
| MINOR INDUSTRIAL POINT SOURCE | .00 | 103.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HIGHWAY/ROAD/BRIDGE CONSTRUCTION | 883.60 | 4,623.85 | 984.27 | 1.00 | .00 | .00 | .00 | .00 |
| DRAINAGE/FILLING/LOSS OF WETLANDS | 300.00 | 3,385.25 | 1.00 | .00 | .00 | .00 | .00 | .00 |
| MUNICIPAL POINT SOURCE DISCHARGES | 204.00 | 436.25 | 1.06 | 1.00 | .00 | .00 | .00 | .00 |
| HISTORIC BOTTOM DEPOSITS (NOT SEDIMENT) | .00 | .00 | 146.30 | .00 | .00 | .00 | .00 | .00 |
| LIVESTOCK (GRAZING OR FEEDING OPERATIONS) | 58.00 | .00 | 2.02 | .00 | .00 | .00 | .00 | .00 |
| ABOVE GROUND STORAGE TANK LEAKS (TANK FARMS) | 211.25 | 6,034.49 | 4.26 | .00 | .00 | .00 | .00 | .00 |
| HIGHWAY/ROAD/BRIDGE RUNOFF (NON-CONSTRUCTION RELATED) | 227.30 | 3,143.25 | 4.02 | 15.00 | .00 | .00 | .00 | .00 |
| PETROLEUM/NATURAL GAS PRODUCTION ACTIVITIES (PERMITTED) | 179.00 | 700.00 | .25 | .00 | .00 | .00 | .00 | .00 |
| ON-SITE TREATMENT SYSTEMS (SEPTIC SYSTEMS AND SIMILAR DECENTRALIZED SYSTEMS) | 249.80 | 8,147.00 | 990.97 | 15.00 | .00 | .00 | .00 | .00 |
| MARINAS | .24 | 103.00 | .00 | 1.00 | .00 | .00 | .00 | .00 |
| MILL TAILINGS | 3.00 | .00 | 1.00 | .00 | .00 | .00 | .00 | .00 |
| PLACER MINING | 470.60 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SPILLS FROM TRUCKS OR TRAINS | 385.75 | 967,706.25 | 32.25 | 5.40 | .00 | .00 | .00 | .00 |
| MINOR MUNICIPAL POINT SOURCES - DRY WEATHER DISCHARGES | .00 | 103.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOURCE UNKNOWN | 112.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HYDROMODIFICATION | 290.30 | 825.00 | .00 | 1.00 | .00 | .00 | .00 | .00 |
| ACID MINE DRAINAGE | 2.20 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SEAFOOD PROCESSING | .00 | .00 | 24.64 | 6.00 | .00 | .00 | .00 | .00 |
| INDUSTRIAL PERMITTED | .00 | .00 | 103.00 | .00 | .00 | .00 | .00 | .00 |
| NON-INDUSTRIAL PERMITTED | 74.30 | 1,863.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| RCRA HAZARDOUS WASTE SITES | 61.50 | 103.00 | 2.00 | .00 | .00 | .00 | .00 | .00 |
| SPECIALITY CROP PRODUCTION | 16.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| INDUSTRIAL POINT SOURCE DISCHARGE | 518.00 | 404.25 | 2,396.56 | 6.00 | .00 | .00 | .00 | .00 |
| OFF-FARM ANIMAL HOLDING/MANAGEMENT AREA | 21.00 | 126.49 | .00 | .00 | .00 | .00 | .00 | .00 |
| DREDGING (E.G., FOR NAVIGATION CHANNELS) | 35.00 | 1.00 | .00 | 1.00 | .00 | .00 | .00 | .00 |
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