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Assessment Data for the State of Hawaii Year 2002

National Assessment Database
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Assessing Water Quality (Questions and Answers)

National Water Quality Inventory Report to Congress, 2002 Reporting Cycle

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Impaired Water Information
2002 303(d) List Report

Other Water Assessment Information
The most current report available for this state is 2006.


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Total Assessed Waters for the State of Hawaii

 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 3,904.53 .00 54.37 871.29 8.08 .00 .00 .00
Estimated Total Water Size in HI 3,905.00 Unavailable 54.80 1,052.00 Unavailable Unavailable Unavailable Unavailable
Percent of Waters Assessed 99.99 Unavailable 99.22 82.82 Unavailable Unavailable Unavailable Unavailable

Assessed Waters of Hawaii 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)
HAWAII 1,288.87 .00 3.00 383.34 1.14 .00 .00 .00
KAUAI 776.26 .00 6.18 96.45 .00 .00 .00 .00
LANAI .00 .00 .34 48.80 .00 .00 .00 .00
MAUI 444.72 .00 .82 123.50 .00 .00 .00 .00
MOLOKAI 235.20 .00 .04 85.90 .00 .00 .00 .00
OAHU 1,018.28 .00 43.74 131.10 6.94 .00 .00 .00
Name Not Reported 141.20 .00 .25 2.20 .00 .00 .00 .00

Hawaii 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
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, and Wildlife Protection and Propagation 3,904.53 36.29 .00 63.71 color.gifcolor.gif
Recreation Recreation 3,900.53 99.98 .00 .02 color.gifcolor.gif
Public Water Supply Public Water Supply 3,885.21 99.98 .00 .02 color.gifcolor.gif
Aquatic Life Harvesting Aquatic Life Harvesting 3,900.53 99.66 .00 .34 color.gifcolor.gif
Hydropower Generation Other 3,900.53 99.98 .00 .02 color.gifcolor.gif
Agricultural Agricultural 3,900.53 99.98 .00 .02 color.gifcolor.gif
Aesthetic Value Aesthetic Value 3,876.75 99.74 .00 .26 color.gifcolor.gif
The state assessed 3,904.53 miles of rivers and streams, or 99.99% of 3,905.00 total miles.

Hawaii Assessed Waters
Water Quality Attainment for Rivers and Streams

 Description of this table
Attainment Status Miles Percent of Assessed
Good 1,416.80 36.29
Threatened .00 .00
Impaired 2,487.73 63.71
Total Miles Assessed 3,904.53 100.00

Hawaii Top Causes of Impairments
for Rivers and Streams

 Description of this table
# State Cause Name Total
Miles
Impaired
1 PH 970.23
2 ORGANIC ENRICHMENT/LOW DO 806.37
3 NON-NATIVE FISH/SHELLFISH/ZOOPLANKTON SPECIES 772.15
4 TURBIDITY 711.24
5 NUTRIENTS 680.14
6 PATHOGENS 528.83
7 SEDIMENTATION/SILTATION 398.52
8 OTHER HABITAT ALTERATIONS 369.41
9 OTHER 353.50
10 FLOW ALTERATION 146.83

Hawaii Top Probable Sources of Impairments
for Rivers and Streams

 Description of this table
# State Source Name Total Miles Impaired by Source
1 AGRICULTURE 633.29
2 MUNICIPAL (URBANIZED HIGH DENSITY AREA) 539.89
3 HYDROMODIFICATION 467.19
4 LIVESTOCK (GRAZING OR FEEDING OPERATIONS) 244.75
5 CROP PRODUCTION (CROP LAND OR DRY LAND) 114.53
6 HABITAT MODIFICATION (OTHER THAN HYDROMODIFICATION) 80.43
7 NATURAL SOURCES 14.40
8 INTENSIVE ANIMAL FEEDING OPERATIONS 10.88
9 SPECIALITY CROP PRODUCTION 7.00
10 MANAGED PASTURE GRAZING 7.00

Hawaii 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
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, and Wildlife Protection and Propagation 54.37 55.60 .00 44.40 color.gifcolor.gif
Recreation Recreation 39.02 73.42 .00 26.58 color.gifcolor.gif
Public Water Supply Public Water Supply 39.02 99.95 .00 .05 color.gifcolor.gif
Aquatic Life Harvesting Aquatic Life Harvesting 39.02 85.73 .00 14.27 color.gifcolor.gif
Hydropower Generation Other 39.02 100.00 .00 .00 color.gif
Aesthetic Value Aesthetic Value 39.02 100.00 .00 .00 color.gif
Agricultural Agricultural 39.02 100.00 .00 .00 color.gif
The state assessed 54.37 square miles of bays and estuaries, or 99.22% of 54.80 total square miles.

Hawaii Assessed Waters
Water Quality Attainment for Bays and Estuaries

 Description of this table
Attainment Status Square Miles Percent of Assessed
Good 26.43 48.61
Threatened .00 .00
Impaired 27.94 51.39
Total Square Miles Assessed 54.37 100.00

Hawaii Top Causes of Impairments
for Bays and Estuaries

 Description of this table
# State Cause Name Total
Square Miles
Impaired
1 SEDIMENTATION/SILTATION 22.82
2 TURBIDITY 21.28
3 NUTRIENTS 20.04
4 TOTAL SUSPENDED SOLIDS (TSS) 14.57
5 PATHOGENS 12.27
6 METALS 9.67
7 PESTICIDES 6.45
8 OIL AND GREASE 5.55
9 PRIORITY ORGANICS 5.55
10 POLYCHLORINATED BIPHENYLS 5.55

Hawaii Top Probable Sources of Impairments
for Bays and Estuaries

 Description of this table
# State Source Name Total Square Miles Impaired by Source
1 MUNICIPAL (URBANIZED HIGH DENSITY AREA) 11.57
2 INDUSTRIAL PERMITTED 5.55
3 AGRICULTURE 4.44
4 CROP PRODUCTION (CROP LAND OR DRY LAND) 4.40
5 LIVESTOCK (GRAZING OR FEEDING OPERATIONS) 4.14
6 NATURAL SOURCES 3.22
7 IRRIGATED CROP PRODUCTION 2.50
8 SEDIMENT RESUSPENSION 2.50
9 PASTURE GRAZING - RIPARIAN AND/OR UPLAND 2.20
10 SOURCE UNKNOWN 2.20

Hawaii 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
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, and Wildlife Protection and Propagation 871.29 97.06 .94 2.00 color.gifcolor.gifcolor.gif
Recreation Recreation 445.01 99.12 .00 .88 color.gifcolor.gif
Public Water Supply Public Water Supply 445.01 100.00 .00 .00 color.gif
Aquatic Life Harvesting Aquatic Life Harvesting 445.01 100.00 .00 .00 color.gif
Agricultural Agricultural 445.01 100.00 .00 .00 color.gif
Hydropower Generation Other 445.01 100.00 .00 .00 color.gif
Aesthetic Value Aesthetic Value 445.01 100.00 .00 .00 color.gif
The state assessed 871.29 miles of coastal shorelines, or 82.82% of 1,052.00 total miles.

Hawaii Assessed Waters
Water Quality Attainment for Coastal Shorelines

 Description of this table
Attainment Status Miles Percent of Assessed
Good 842.19 96.66
Threatened 8.20 .94
Impaired 20.90 2.40
Total Miles Assessed 871.29 100.00

Hawaii Top Causes of Impairments
for Coastal Shorelines

 Description of this table
# State Cause Name Total
Miles
Impaired
1 NUTRIENTS 99.90
2 TOTAL SUSPENDED SOLIDS (TSS) 78.30
3 TURBIDITY 71.40
4 SEDIMENTATION/SILTATION 50.50
5 CAUSE UNKNOWN 10.60
6 PATHOGENS 10.60
7 OIL AND GREASE 2.00
8 AMMONIA (UNIONIZED) - TOXIN 2.00
9 METALS 1.30
10 ORGANIC ENRICHMENT/LOW DO 1.20

Hawaii Top Probable Sources of Impairments
for Coastal Shorelines

 Description of this table
# State Source Name Total Miles Impaired by Source
1 AGRICULTURE 87.70
2 LIVESTOCK (GRAZING OR FEEDING OPERATIONS) 73.60
3 CROP PRODUCTION (CROP LAND OR DRY LAND) 38.40
4 INDUSTRIAL POINT SOURCE DISCHARGE 16.30
5 CONSTRUCTION 14.90
6 LAND DISPOSAL 12.60
7 IRRIGATED CROP PRODUCTION 11.50
8 OTHER URBAN RUNOFF 4.50
9 MUNICIPAL (URBANIZED HIGH DENSITY AREA) 4.50
10 HYDROMODIFICATION 3.90

Hawaii Assessed Waters
Individual Use Support for Oceans, and Near Coastal

 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
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, and Wildlife Protection and Propagation 8.08 77.35 .00 22.65 color.gifcolor.gif
The total size of this water type for the state is not currently available.

Hawaii Assessed Waters
Water Quality Attainment for Oceans, and Near Coastal

 Description of this table
Attainment Status Square Miles Percent of Assessed
Good 6.25 77.35
Threatened .00 .00
Impaired 1.83 22.65
Total Square Miles Assessed 8.08 100.00

Hawaii Top Causes of Impairments
for Oceans, and Near Coastal

 Description of this table
# State Cause Name Total
Square Miles
Impaired
1 NUTRIENTS 1.83
2 PATHOGENS .69
3 TURBIDITY .16
4 SEDIMENTATION/SILTATION .16

Hawaii Top Probable Sources of Impairments
for Oceans, and Near Coastal

 Description of this table
# State Source Name Total Square Miles Impaired by Source
1 INTENSIVE ANIMAL FEEDING OPERATIONS 1.00
2 MUNICIPAL POINT SOURCE DISCHARGES .69
3 AGRICULTURE .14
4 LIVESTOCK (GRAZING OR FEEDING OPERATIONS) .14
5 CONSTRUCTION .14
6 CROP PRODUCTION (CROP LAND OR DRY LAND) .14

Hawaii

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)
OTHER 353.50 .00 .00 .00 .00 .00 .00 .00
CAUSE UNKNOWN 1.00 .00 .00 10.60 .00 .00 .00 .00
PRIORITY ORGANICS .00 .00 5.55 .00 .00 .00 .00 .00
TOTAL SUSPENDED SOLIDS (TSS) 11.60 .00 14.57 78.30 .00 .00 .00 .00
METALS 12.84 .00 9.67 1.30 .00 .00 .00 .00
PATHOGENS 528.83 .00 12.27 10.60 .69 .00 .00 .00
UNKNOWN TOXICITY 4.00 .00 .00 .00 .00 .00 .00 .00
AMMONIA (UNIONIZED) - TOXIN 1.00 .00 .00 2.00 .00 .00 .00 .00
TEMPERATURE, WATER .00 .00 .30 .00 .00 .00 .00 .00
ORGANIC ENRICHMENT/LOW DO 806.37 .00 .00 1.20 .00 .00 .00 .00
POLYCHLORINATED BIPHENYLS .00 .00 5.55 .00 .00 .00 .00 .00
NON-NATIVE FISH/SHELLFISH/ZOOPLANKTON SPECIES 772.15 .00 .00 .00 .00 .00 .00 .00
OIL AND GREASE 56.00 .00 5.55 2.00 .00 .00 .00 .00
FLOW ALTERATION 146.83 .00 .00 .00 .00 .00 .00 .00
NUTRIENTS 680.14 .00 20.04 99.90 1.83 .00 .00 .00
SEDIMENTATION/SILTATION 398.52 .00 22.82 50.50 .16 .00 .00 .00
NON-NATIVE AQUATIC PLANTS 26.00 .00 .00 .00 .00 .00 .00 .00
PH 970.23 .00 .00 .00 .00 .00 .00 .00
TURBIDITY 711.24 .00 21.28 71.40 .16 .00 .00 .00
PESTICIDES 12.84 .00 6.45 .00 .00 .00 .00 .00
OTHER HABITAT ALTERATIONS 369.41 .00 .30 .00 .00 .00 .00 .00
NITROGEN, AMMONIA (TOTAL AMMONIA) 114.50 .00 .00 .00 .00 .00 .00 .00

Hawaii

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)
OTHER 1.75 .00 .00 .00 .00 .00 .00 .00
LAND DISPOSAL 1.00 .00 .00 12.60 .00 .00 .00 .00
OTHER URBAN RUNOFF 7.00 .00 .02 4.50 .00 .00 .00 .00
RESOURCE EXTRACTION .00 .00 .00 2.00 .00 .00 .00 .00
HABITAT MODIFICATION (OTHER THAN HYDROMODIFICATION) 80.43 .00 .30 .00 .00 .00 .00 .00
CONSTRUCTION 2.00 .00 1.00 14.90 .14 .00 .00 .00
SILVICULTURE .00 .00 .00 2.00 .00 .00 .00 .00
LOSS OF RIPARIAN HABITAT 1.00 .00 .00 .00 .00 .00 .00 .00
IRRIGATED CROP PRODUCTION .00 .00 2.50 11.50 .00 .00 .00 .00
MAJOR INDUSTRIAL POINT SOURCE .00 .00 .30 .00 .00 .00 .00 .00
INTENSIVE ANIMAL FEEDING OPERATIONS 10.88 .00 .00 .40 1.00 .00 .00 .00
CROP PRODUCTION (CROP LAND OR DRY LAND) 114.53 .00 4.40 38.40 .14 .00 .00 .00
MUNICIPAL (URBANIZED HIGH DENSITY AREA) 539.89 .00 11.57 4.50 .00 .00 .00 .00
AGRICULTURE 633.29 .00 4.44 87.70 .14 .00 .00 .00
CHANNELIZATION 5.25 .00 .00 .00 .00 .00 .00 .00
MANAGED PASTURE GRAZING 7.00 .00 .00 .00 .00 .00 .00 .00
PASTURE GRAZING - RIPARIAN AND/OR UPLAND .00 .00 2.20 .00 .00 .00 .00 .00
NATURAL SOURCES 14.40 .00 3.22 .00 .00 .00 .00 .00
SEDIMENT RESUSPENSION .00 .00 2.50 2.00 .00 .00 .00 .00
MINOR INDUSTRIAL POINT SOURCE .00 .00 .00 2.00 .00 .00 .00 .00
HIGHWAY/ROAD/BRIDGE CONSTRUCTION 4.45 .00 .00 .00 .00 .00 .00 .00
MUNICIPAL POINT SOURCE DISCHARGES .00 .00 .00 .00 .69 .00 .00 .00
LIVESTOCK (GRAZING OR FEEDING OPERATIONS) 244.75 .00 4.14 73.60 .14 .00 .00 .00
SOURCE UNKNOWN 2.75 .00 2.20 .00 .00 .00 .00 .00
HYDROMODIFICATION 467.19 .00 .00 3.90 .00 .00 .00 .00
INDUSTRIAL PERMITTED .00 .00 5.55 .00 .00 .00 .00 .00
SPECIALITY CROP PRODUCTION 7.00 .00 .00 .00 .00 .00 .00 .00
INDUSTRIAL POINT SOURCE DISCHARGE .00 .00 .30 16.30 .00 .00 .00 .00
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