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Assessment Data for the State of Utah Year 2002

National Assessment Database
About this Database

Assessing Water Quality (Questions and Answers)

National Water Quality Inventory Report to Congress, 2002 Reporting Cycle

The 2002 National Assessment
Database
(Fact Sheet)

Previous National Water Quality Reports

EnviroMapper for Water

Impaired Water Information
2002 303(d) List Report

Other Water Assessment Information
The most current report available for this state is 2006.
Data are also available for these years: 2004



State of Utah websites:

State 305(b) Water Quality Assessment Report(s)
  State Water Quality Program

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Total Assessed Waters for the State of Utah

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 10,598.37 468,447.00 .00 .00 .00 .00 .00 .00
Estimated Total Water Size in UT 85,916.00 481,638.00 Unavailable Unavailable Unavailable Unavailable Unavailable Unavailable
Percent of Waters Assessed 12.34 97.26 Unavailable Unavailable Unavailable Unavailable Unavailable Unavailable

Assessed Waters of Utah 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)
ASHLEY-BRUSH 234.83 2,190.00 .00 .00 .00 .00 .00 .00
BEAR LAKE 22.01 69,760.00 .00 .00 .00 .00 .00 .00
BEAVER BOTTOMS-UPPER BEAVER 186.91 1,170.00 .00 .00 .00 .00 .00 .00
BLACKS FORK 211.43 1,118.00 .00 .00 .00 .00 .00 .00
COLORADO HEADWATERS-PLATEAU 3.30 .00 .00 .00 .00 .00 .00 .00
DIRTY DEVIL 77.89 .00 .00 .00 .00 .00 .00 .00
DUCHESNE 1,176.86 1,638.00 .00 .00 .00 .00 .00 .00
EAST FORK SEVIER 320.61 3,137.00 .00 .00 .00 .00 .00 .00
ESCALANTE 347.43 165.00 .00 .00 .00 .00 .00 .00
ESCALANTE DESERT 39.48 455.00 .00 .00 .00 .00 .00 .00
FREMONT 284.19 3,229.00 .00 .00 .00 .00 .00 .00
JORDAN 189.15 272.00 .00 .00 .00 .00 .00 .00
KANAB 16.74 .00 .00 .00 .00 .00 .00 .00
LITTLE BEAR-LOGAN 395.72 653.00 .00 .00 .00 .00 .00 .00
LOWER BEAR-MALAD 128.23 554.00 .00 .00 .00 .00 .00 .00
LOWER DOLORES 93.80 6.00 .00 .00 .00 .00 .00 .00
LOWER GREEN 151.05 .00 .00 .00 .00 .00 .00 .00
LOWER GREEN-DESOLATION CANYON 327.96 .00 .00 .00 .00 .00 .00 .00
LOWER GREEN-DIAMOND 106.94 1,808.00 .00 .00 .00 .00 .00 .00
LOWER LAKE POWELL .00 162,700.00 .00 .00 .00 .00 .00 .00
LOWER SAN JUAN 63.73 .00 .00 .00 .00 .00 .00 .00
LOWER SAN JUAN-FOUR CORNERS 61.56 32.00 .00 .00 .00 .00 .00 .00
LOWER SEVIER 219.69 1,905.00 .00 .00 .00 .00 .00 .00
LOWER VIRGIN 23.92 .00 .00 .00 .00 .00 .00 .00
LOWER WEBER 331.12 13,700.00 .00 .00 .00 .00 .00 .00
LOWER WHITE 74.67 .00 .00 .00 .00 .00 .00 .00
MIDDLE BEAR 152.00 7,534.00 .00 .00 .00 .00 .00 .00
MIDDLE SEVIER 418.89 11,242.00 .00 .00 .00 .00 .00 .00
MONTEZUMA 32.51 104.00 .00 .00 .00 .00 .00 .00
MUDDY 250.01 .00 .00 .00 .00 .00 .00 .00
MUDDY 2.47 .00 .00 .00 .00 .00 .00 .00
PARIA 30.48 .00 .00 .00 .00 .00 .00 .00
PRICE 363.17 2,977.00 .00 .00 .00 .00 .00 .00
PROVO 319.80 6,301.00 .00 .00 .00 .00 .00 .00
RUSH-TOOELE VALLEYS .00 603.00 .00 .00 .00 .00 .00 .00
SAN PITCH 342.32 1,550.00 .00 .00 .00 .00 .00 .00
SAN RAFAEL 456.53 2,733.00 .00 .00 .00 .00 .00 .00
SPANISH FORK 414.39 34.00 .00 .00 .00 .00 .00 .00
STRAWBERRY 371.46 20,367.00 .00 .00 .00 .00 .00 .00
UPPER BEAR 469.43 406.00 .00 .00 .00 .00 .00 .00
UPPER COLORADO-KANE SPRINGS 206.11 86.00 .00 .00 .00 .00 .00 .00
UPPER DOLORES 20.26 .00 .00 .00 .00 .00 .00 .00
UPPER GREEN-FLAMING GORGE RESERVOIR 273.11 43,017.00 .00 .00 .00 .00 .00 .00
UPPER LAKE POWELL 46.95 .00 .00 .00 .00 .00 .00 .00
UPPER SEVIER 211.21 4,470.00 .00 .00 .00 .00 .00 .00
UPPER VIRGIN 350.57 1,254.00 .00 .00 .00 .00 .00 .00
UPPER WEBER 550.93 3,072.00 .00 .00 .00 .00 .00 .00
UTAH LAKE 101.90 98,077.00 .00 .00 .00 .00 .00 .00
WESTWATER CANYON 37.45 .00 .00 .00 .00 .00 .00 .00
WILLOW 57.54 .00 .00 .00 .00 .00 .00 .00
Name Not Reported 44.36 128.00 .00 .00 .00 .00 .00 .00


Utah 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 10,543.43 84.11 .00 15.89 color.gifcolor.gif
Recreation Recreation 185.44 46.38 .00 53.62 color.gifcolor.gif
Public Water Supply Public Water Supply 3,884.41 97.85 .00 2.15 color.gifcolor.gif
Agricultural Agricultural 10,244.08 85.24 .00 14.76 color.gifcolor.gif
The state assessed 10,598.37 miles of rivers and streams, or 12.34% of 85,916.00 total miles.

Utah Assessed Waters
Water Quality Attainment for Rivers and Streams

Description of this table
Attainment Status Miles Percent of Assessed
Good 7,754.09 73.16
Threatened .00 .00
Impaired 2,844.28 26.84
Total Miles Assessed 10,598.37 100.00

Utah Top Causes of Impairments
for Rivers and Streams

Description of this table
# State Cause Name Total
Miles
Impaired
1 SALINITY 1,373.62
2 PHOSPHORUS, ELEMENTAL 836.83
3 NUTRIENTS 836.83
4 OTHER HABITAT ALTERATIONS 663.63
5 SEDIMENTATION/SILTATION 620.22
6 TEMPERATURE, WATER 303.33
7 ORGANIC ENRICHMENT/LOW DO 226.25
8 FLOW ALTERATION 107.82
9 PH 85.78
10 METALS 78.66

Utah Top Probable Sources of Impairments
for Rivers and Streams

Description of this table
# State Source Name Total Miles Impaired by Source
1 AGRICULTURE 2,163.90
2 NATURAL SOURCES 1,289.91
3 HYDROMODIFICATION 966.34
4 HABITAT MODIFICATION (OTHER THAN HYDROMODIFICATION) 815.06
5 CROP PRODUCTION (CROP LAND OR DRY LAND) 721.57
6 IRRIGATED CROP PRODUCTION 721.57
7 LIVESTOCK (GRAZING OR FEEDING OPERATIONS) 571.82
8 SOURCE UNKNOWN 364.05
9 RESOURCE EXTRACTION 178.06
10 AQUACULTURE 144.12

Utah 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
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, and Wildlife Protection and Propagation 461,263.00 68.73 .00 31.27 color.gifcolor.gif
Recreation Recreation 162,700.00 100.00 .00 .00 color.gif
Public Water Supply Public Water Supply 253,908.00 100.00 .00 .00 color.gif
Agricultural Agricultural 463,429.00 78.86 .00 21.14 color.gifcolor.gif
The state assessed 468,447.00 acres of lakes, ponds and reservoirs, or 97.26% of 481,638.00 total acres.

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

Description of this table
Attainment Status Acres Percent of Assessed
Good 324,222.00 69.21
Threatened .00 .00
Impaired 144,225.00 30.79
Total Acres Assessed 468,447.00 100.00

Utah Top Causes of Impairments
for Lakes, Ponds and Reservoirs

Description of this table
# State Cause Name Total
Acres
Impaired
1 NUTRIENTS 115,809.00
2 PHOSPHORUS, ELEMENTAL 115,809.00
3 TOTAL DISSOLVED SOLIDS 96,900.00
4 SALINITY 96,900.00
5 ORGANIC ENRICHMENT/LOW DO 39,651.00
6 TEMPERATURE, WATER 17,208.00
7 PH 3,393.00

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

Description of this table
# State Source Name Total Acres Impaired by Source
1 LIVESTOCK (GRAZING OR FEEDING OPERATIONS) 143,760.00
2 PASTURE GRAZING - RIPARIAN AND/OR UPLAND 132,465.00
3 SOURCE UNKNOWN 111,544.00
4 CROP PRODUCTION (CROP LAND OR DRY LAND) 109,211.00
5 IRRIGATED CROP PRODUCTION 108,657.00
6 CONSTRUCTION 105,305.00
7 INTENSIVE ANIMAL FEEDING OPERATIONS 102,485.00
8 MUNICIPAL POINT SOURCE DISCHARGES 99,968.00
9 INDUSTRIAL POINT SOURCE DISCHARGE 99,715.00
10 MUNICIPAL (URBANIZED HIGH DENSITY AREA) 99,334.00

Utah

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 41.50 .00 .00 .00 .00 .00 .00 .00
ARSENIC 30.80 .00 .00 .00 .00 .00 .00 .00
METALS 78.66 .00 .00 .00 .00 .00 .00 .00
PATHOGENS 15.40 .00 .00 .00 .00 .00 .00 .00
AMMONIA (UNIONIZED) - TOXIN 7.30 .00 .00 .00 .00 .00 .00 .00
TEMPERATURE, WATER 303.33 17,208.00 .00 .00 .00 .00 .00 .00
ORGANIC ENRICHMENT/LOW DO 226.25 39,651.00 .00 .00 .00 .00 .00 .00
CADMIUM 21.40 .00 .00 .00 .00 .00 .00 .00
SELENIUM 15.19 .00 .00 .00 .00 .00 .00 .00
RADIATION 17.13 .00 .00 .00 .00 .00 .00 .00
FLOW ALTERATION 107.82 .00 .00 .00 .00 .00 .00 .00
TOTAL DISSOLVED SOLIDS .00 96,900.00 .00 .00 .00 .00 .00 .00
NUTRIENTS 836.83 115,809.00 .00 .00 .00 .00 .00 .00
PHOSPHORUS, ELEMENTAL 836.83 115,809.00 .00 .00 .00 .00 .00 .00
SEDIMENTATION/SILTATION 620.22 .00 .00 .00 .00 .00 .00 .00
NON-NATIVE AQUATIC PLANTS 50.56 .00 .00 .00 .00 .00 .00 .00
PH 85.78 3,393.00 .00 .00 .00 .00 .00 .00
SALINITY 1,373.62 96,900.00 .00 .00 .00 .00 .00 .00
OTHER HABITAT ALTERATIONS 663.63 .00 .00 .00 .00 .00 .00 .00

Utah

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 .00 710.00 .00 .00 .00 .00 .00 .00
LAND DISPOSAL .00 8,347.00 .00 .00 .00 .00 .00 .00
RESOURCE EXTRACTION 178.06 2,965.00 .00 .00 .00 .00 .00 .00
CONTAMINATED SEDIMENTS .00 520.00 .00 .00 .00 .00 .00 .00
SILVICULTURE HARVESTING .00 1,367.00 .00 .00 .00 .00 .00 .00
EROSION AND SEDIMENTATION .00 1,040.00 .00 .00 .00 .00 .00 .00
NON-IRRIGATED CROP PRODUCTION .00 554.00 .00 .00 .00 .00 .00 .00
HABITAT MODIFICATION (OTHER THAN HYDROMODIFICATION) 815.06 .00 .00 .00 .00 .00 .00 .00
RECREATION AND TOURISM ACTIVITIES (OTHER THAN BOATING - SEE 7900) .00 39,917.00 .00 .00 .00 .00 .00 .00
RANGELAND (UNMANAGED PASTURE) GRAZING .00 2,661.00 .00 .00 .00 .00 .00 .00
IMPACTS FROM ABANDONED MINE LANDS (INACTIVE) 30.80 .00 .00 .00 .00 .00 .00 .00
SITE CLEARANCE (LAND DEVELOPMENT OR REDEVELOPMENT) 30.70 8,405.00 .00 .00 .00 .00 .00 .00
AQUACULTURE 144.12 7,455.00 .00 .00 .00 .00 .00 .00
CONSTRUCTION 30.70 105,305.00 .00 .00 .00 .00 .00 .00
SILVICULTURE .00 2,656.00 .00 .00 .00 .00 .00 .00
IRRIGATED CROP PRODUCTION 721.57 108,657.00 .00 .00 .00 .00 .00 .00
SURFACE MINING .00 520.00 .00 .00 .00 .00 .00 .00
SUBSURFACE MINING .00 2,815.00 .00 .00 .00 .00 .00 .00
ANIMAL FEEDING OPERATIONS (NPS) .00 1,317.00 .00 .00 .00 .00 .00 .00
INTENSIVE ANIMAL FEEDING OPERATIONS .00 102,485.00 .00 .00 .00 .00 .00 .00
CROP PRODUCTION (CROP LAND OR DRY LAND) 721.57 109,211.00 .00 .00 .00 .00 .00 .00
MUNICIPAL (URBANIZED HIGH DENSITY AREA) 84.79 99,334.00 .00 .00 .00 .00 .00 .00
AGRICULTURE 2,163.90 33,820.00 .00 .00 .00 .00 .00 .00
MINE TAILINGS 30.80 1,394.00 .00 .00 .00 .00 .00 .00
CHANNELIZATION .00 266.00 .00 .00 .00 .00 .00 .00
MANAGED PASTURE GRAZING .00 4,103.00 .00 .00 .00 .00 .00 .00
MAJOR MUNICIPAL POINT SOURCE 30.70 .00 .00 .00 .00 .00 .00 .00
FLOW ALTERATIONS FROM WATER DIVERSIONS 28.10 1,457.00 .00 .00 .00 .00 .00 .00
PASTURE GRAZING - RIPARIAN AND/OR UPLAND .00 132,465.00 .00 .00 .00 .00 .00 .00
NATURAL SOURCES 1,289.91 19,033.00 .00 .00 .00 .00 .00 .00
SEPTAGE DISPOSAL .00 22,617.00 .00 .00 .00 .00 .00 .00
COMBINED SEWER OVERFLOWS .00 1,394.00 .00 .00 .00 .00 .00 .00
PASTURE GRAZING - RIPARIAN .00 3,942.00 .00 .00 .00 .00 .00 .00
MUNICIPAL POINT SOURCE DISCHARGES 129.69 99,968.00 .00 .00 .00 .00 .00 .00
SILVICULTURE PLANTATION MANAGEMENT .00 1,248.00 .00 .00 .00 .00 .00 .00
GRAZING IN RIPARIAN OR SHORELINE ZONES 117.10 2,709.00 .00 .00 .00 .00 .00 .00
LIVESTOCK (GRAZING OR FEEDING OPERATIONS) 571.82 143,760.00 .00 .00 .00 .00 .00 .00
ABOVE GROUND STORAGE TANK LEAKS (TANK FARMS) .00 96,900.00 .00 .00 .00 .00 .00 .00
PETROLEUM/NATURAL GAS PRODUCTION ACTIVITIES (PERMITTED) 119.43 .00 .00 .00 .00 .00 .00 .00
ON-SITE TREATMENT SYSTEMS (SEPTIC SYSTEMS AND SIMILAR DECENTRALIZED SYSTEMS) .00 2,874.00 .00 .00 .00 .00 .00 .00
SOURCE UNKNOWN 364.05 111,544.00 .00 .00 .00 .00 .00 .00
HYDROMODIFICATION 966.34 3,121.00 .00 .00 .00 .00 .00 .00
PASTURE GRAZING - UPLAND .00 2,548.00 .00 .00 .00 .00 .00 .00
INDUSTRIAL POINT SOURCE DISCHARGE 103.79 99,715.00 .00 .00 .00 .00 .00 .00
OFF-FARM ANIMAL HOLDING/MANAGEMENT AREA .00 3,028.00 .00 .00 .00 .00 .00 .00

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