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Assessment Data for the State of Nevada Year 2002
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Impaired Water Information
Other Water Assessment Information
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State of Nevada websites: | State 305(b) Water Quality Assessment Report(s) |
| State Water Quality Program |
Search for a Waterbody within Nevada
Total Assessed Waters for the State of Nevada
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 | 3,254.14 | 209,307.24 | .00 | .00 | .00 | 48,326.00 | .00 | .00 |
| Estimated Total Water Size in NV | 15,549.00 | 553,239.00 | Unavailable | Unavailable | Unavailable | 136,650.00 | Unavailable | Unavailable |
| Percent of Waters Assessed | 20.93 | 37.83 | Unavailable | Unavailable | Unavailable | 35.36 | Unavailable | Unavailable |
Assessed Waters of Nevada 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) | |
| BRUNEAU | 88.34 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CARSON DESERT | 40.46 | 1,920.00 | .00 | .00 | .00 | 21,326.00 | .00 | .00 |
| DIAMOND-MONITOR VALLEYS | 7.91 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| EAST WALKER | 28.43 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| GOOSE | 27.30 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HAMLIN-SNAKE VALLEYS | 48.79 | 5.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HAVASU-MOHAVE LAKES | 92.21 | 14,000.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HOT CREEK-RAILROAD VALLEYS | 18.15 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LAKE MEAD | 25.07 | 93,840.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LAKE TAHOE | 75.46 | 37,231.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LAS VEGAS WASH | 10.35 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LITTLE HUMBOLDT | 99.49 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LONG-RUBY VALLEYS | .00 | 29.70 | .00 | .00 | .00 | 14,000.00 | .00 | .00 |
| LOWER HUMBOLDT | 199.57 | 11,400.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER QUINN | 38.00 | 598.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER VIRGIN | 31.06 | 15.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MASSACRE LAKE | .00 | 6.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MEADOW VALLEY WASH | 53.86 | 103.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MIDDLE CARSON | 79.31 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MIDDLE HUMBOLDT | 157.86 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MUDDY | 38.70 | 86.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NORTH FORK HUMBOLDT | 100.27 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NORTHERN BIG SMOKY VALLEY | 52.34 | 14.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PINE | 54.28 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PYRAMID-WINNEMUCCA LAKES | 28.07 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| REESE | 208.72 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ROCK | 101.96 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SALMON FALLS | 48.71 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SMOKE CREEK DESERT | .00 | 46.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOUTH FORK HUMBOLDT | 135.02 | 1,650.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOUTH FORK OWYHEE | 92.03 | 933.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOUTHERN BIG SMOKY VALLEY | 21.44 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SPRING-STEPTOE VALLEYS | 48.83 | 168.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| THOUSAND-VIRGIN | .00 | 194.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TRUCKEE | 140.97 | 6,153.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER CARSON | 101.40 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER HUMBOLDT | 564.85 | 12.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER OWYHEE | 162.21 | 2,830.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER QUINN | 40.92 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| WALKER | 92.52 | .00 | .00 | .00 | .00 | 13,000.00 | .00 | .00 |
| WALKER LAKE | 52.72 | 35,490.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| WEST WALKER | 55.70 | 987.54 | .00 | .00 | .00 | .00 | .00 | .00 |
| WHITE | 26.75 | 1,596.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| Name Not Reported | 38.09 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
Nevada 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 |  % Good |
|
|---|---|---|---|---|---|---|
 % Threatened |
||||||
 % Impaired |
||||||
 |
Fish, Shellfish, and Wildlife Protection and Propagation | 3,254.14 | 60.54 | .00 | 39.46 | |
 |
Recreation | 3,254.14 | 79.68 | .00 | 20.32 | |
 |
Public Water Supply | 3,059.91 | 83.84 | .00 | 16.16 | |
 |
Aquatic Life Harvesting | 19.69 | 100.00 | .00 | .00 | |
 |
Agricultural | 3,254.14 | 94.97 | .00 | 5.03 | |
 |
Industrial | 3,227.66 | 100.00 | .00 | .00 | |
Nevada Assessed Waters
Water Quality Attainment for Rivers and Streams
Description of this table
| Attainment Status | Miles | Percent of Assessed |
| Good | 1,887.58 | 58.01 |
| Threatened | .00 | .00 |
| Impaired | 1,366.56 | 41.99 |
| Total Miles Assessed | 3,254.14 | 100.00 |
Nevada Top Causes of Impairments
for Rivers and Streams
Description of this table
| # | State Cause Name | Total Miles Impaired |
|---|---|---|
| 1 | TURBIDITY | 339.12 |
| 2 | BORON | 206.14 |
| 3 | TOTAL PHOSPHATES | 187.51 |
| 4 | NUTRIENTS | 187.51 |
| 5 | TEMPERATURE, WATER | 142.16 |
| 6 | NITROGEN, AMMONIA (TOTAL AMMONIA) | 128.55 |
| 7 | PH | 100.27 |
| 8 | ZINC | 91.12 |
| 9 | ORGANIC ENRICHMENT/LOW DO | 74.90 |
| 10 | MERCURY ADVISORY | 71.49 |
Nevada Top Probable Sources of Impairments
for Rivers and Streams
Description of this table
| # | State Source Name | Total Miles Impaired by Source |
|---|---|---|
| 1 | NATURAL SOURCES | 698.29 |
| 2 | AGRICULTURE | 427.93 |
| 3 | LIVESTOCK (GRAZING OR FEEDING OPERATIONS) | 312.58 |
| 4 | CONSTRUCTION | 74.43 |
| 5 | SITE CLEARANCE (LAND DEVELOPMENT OR REDEVELOPMENT) | 72.30 |
| 6 | HYDROMODIFICATION | 61.49 |
| 7 | RANGELAND (UNMANAGED PASTURE) GRAZING | 48.71 |
| 8 | FLOW ALTERATIONS FROM WATER DIVERSIONS | 15.70 |
| 9 | UPSTREAM IMPOUNDMENTS (E.G., PL-566 NRCS STRUCTURES) | 13.75 |
| 10 | SOURCE UNKNOWN | 10.31 |
Nevada 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 | % Good |
|
|---|---|---|---|---|---|---|
| % Threatened |
||||||
| % Impaired |
||||||
|
Fish, Shellfish, and Wildlife Protection and Propagation | 209,307.24 | 80.76 | .00 | 19.24 | |
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Recreation | 209,307.24 | 81.67 | .00 | 18.33 | |
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Public Water Supply | 203,478.24 | 82.56 | .00 | 17.44 | |
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Agricultural | 209,307.24 | 82.13 | .00 | 17.87 | |
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Industrial | 207,657.24 | 82.91 | .00 | 17.09 | |
Nevada Assessed Waters
Water Quality Attainment for Lakes, Ponds and Reservoirs
Description of this table
| Attainment Status | Acres | Percent of Assessed |
| Good | 169,027.70 | 80.76 |
| Threatened | .00 | .00 |
| Impaired | 40,279.54 | 19.24 |
| Total Acres Assessed | 209,307.24 | 100.00 |
Nevada Top Causes of Impairments
for Lakes, Ponds and Reservoirs
Description of this table
| # | State Cause Name | Total Acres Impaired |
|---|---|---|
| 1 | BORON | 37,410.00 |
| 2 | NITROGEN, AMMONIA (TOTAL AMMONIA) | 35,548.00 |
| 3 | PH | 35,528.00 |
| 4 | SULFATES | 35,490.00 |
| 5 | AMMONIA (UNIONIZED) - TOXIN | 35,490.00 |
| 6 | SALINITY | 35,490.00 |
| 7 | NUTRIENTS | 35,490.00 |
| 8 | TOTAL PHOSPHATES | 35,490.00 |
| 9 | ARSENIC | 35,490.00 |
| 10 | TEMPERATURE, WATER | 58.00 |
Nevada Top Probable Sources of Impairments
for Lakes, Ponds and Reservoirs
Description of this table
| # | State Source Name | Total Acres Impaired by Source |
|---|---|---|
| 1 | SOURCE UNKNOWN | 35,490.00 |
| 2 | FLOW ALTERATIONS FROM WATER DIVERSIONS | 35,490.00 |
| 3 | HYDROMODIFICATION | 35,490.00 |
| 4 | NATURAL SOURCES | 2,016.00 |
| 5 | AGRICULTURE | 1,920.00 |
Nevada Assessed Waters
Individual Use Support for Wetlands
Description of this table
| State Designated Use | Total Acres Assessed | Percent Good | Percent Threatened | Percent Impaired | % Good |
|
|---|---|---|---|---|---|---|
| % Threatened |
||||||
| % Impaired |
||||||
|
Fish, Shellfish, and Wildlife Protection and Propagation | 48,326.00 | 73.10 | .00 | 26.90 | |
|
Recreation | 48,326.00 | 73.10 | .00 | 26.90 | |
|
Public Water Supply | 29,000.00 | 55.17 | .00 | 44.83 | |
|
Industrial | 48,326.00 | 100.00 | .00 | .00 | |
|
Agricultural | 48,326.00 | 73.10 | .00 | 26.90 | |
Nevada Assessed Waters
Water Quality Attainment for Wetlands
Description of this table
| Attainment Status | Acres | Percent of Assessed |
| Good | 35,326.00 | 73.10 |
| Threatened | .00 | .00 |
| Impaired | 13,000.00 | 26.90 |
| Total Acres Assessed | 48,326.00 | 100.00 |
Nevada Top Causes of Impairments
for Wetlands
Description of this table
| # | State Cause Name | Total Acres Impaired |
|---|---|---|
| 1 | ARSENIC | 13,000.00 |
| 2 | SALINITY | 13,000.00 |
| 3 | PH | 13,000.00 |
| 4 | BORON | 13,000.00 |
Nevada Top Probable Sources of Impairments
for Wetlands
Description of this table
| # | State Source Name | Total Acres Impaired by Source |
|---|---|---|
| 1 | SOURCE UNKNOWN | 13,000.00 |
Nevada
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 | 91.12 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ARSENIC | 50.11 | 35,490.00 | .00 | .00 | .00 | 13,000.00 | .00 | .00 |
| TOTAL SUSPENDED SOLIDS (TSS) | 55.36 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| METALS | 54.67 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BORON | 206.14 | 37,410.00 | .00 | .00 | .00 | 13,000.00 | .00 | .00 |
| SULFATES | .00 | 35,490.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| AMMONIA (UNIONIZED) - TOXIN | 17.36 | 35,490.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TEMPERATURE, WATER | 142.16 | 58.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ORGANIC ENRICHMENT/LOW DO | 74.90 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MERCURY ADVISORY | 71.49 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| E COLI | 1.24 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| IRON | 34.19 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NUTRIENTS | 187.51 | 35,490.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TOTAL PHOSPHATES | 187.51 | 35,490.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PH | 100.27 | 35,528.00 | .00 | .00 | .00 | 13,000.00 | .00 | .00 |
| COPPER | 30.52 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SALINITY | 9.77 | 35,490.00 | .00 | .00 | .00 | 13,000.00 | .00 | .00 |
| TURBIDITY | 339.12 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NITROGEN, AMMONIA (TOTAL AMMONIA) | 128.55 | 35,548.00 | .00 | .00 | .00 | .00 | .00 | .00 |
Nevada
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) | |
| RANGELAND (UNMANAGED PASTURE) GRAZING | 48.71 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SITE CLEARANCE (LAND DEVELOPMENT OR REDEVELOPMENT) | 72.30 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPSTREAM IMPOUNDMENTS (E.G., PL-566 NRCS STRUCTURES) | 13.75 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CONSTRUCTION | 74.43 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MUNICIPAL (URBANIZED HIGH DENSITY AREA) | 7.82 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| AGRICULTURE | 427.93 | 1,920.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| FLOW ALTERATIONS FROM WATER DIVERSIONS | 15.70 | 35,490.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NATURAL SOURCES | 698.29 | 2,016.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LIVESTOCK (GRAZING OR FEEDING OPERATIONS) | 312.58 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MILL TAILINGS | 7.75 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOURCE UNKNOWN | 10.31 | 35,490.00 | .00 | .00 | .00 | 13,000.00 | .00 | .00 |
| HYDROMODIFICATION | 61.49 | 35,490.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ACID MINE DRAINAGE | 7.75 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
