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On This Page 303(d) Listed Waters for 2010

Data are also available for these cycles:
2002 2004 2006

Waterbody Changes from Prior Cycle

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Nevada Water Quality Assessment Report

Assessed Waters of Nevada by Watershed

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Search for a waterbody within Nevada
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Display impaired waters and TMDL information only



Site-specific Targeted Monitoring Summary Results

Nevada (2010)

Description of this table
 
    2,395.2 19,919.1 655.0
      
   
                     
                     
                     
                     
    2,804.3 208,966.5 47,195.0
           32.7     36,812.0     
                     
                     
           2,771.6     172,154.5     47,195.0
              .0     .0     .0
                    2,771.6           172,154.5           47,195.0
5,199.5 228,885.6 47,850.0
15,549.0 553,239.0 136,650.0
33.4 41.4 35.0

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Summary of Water Quality Assessments for Each Waterbody Type
for Reporting Year 2010


Site-specific Targeted Monitoring Results

Nevada Rivers and Streams 2010

Description of this table

All
Rivers and Streams

15,549.0 Miles of Rivers and Streams

Assessed 5,199.5
Unassessed 10,349.5
Total Miles 15,549.0







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Description of this table

Assessed
Rivers and Streams

5,199.5 Miles of
Assessed Rivers and Streams

Good 2,395.2
Threatened .0
Impaired 2,804.3
Total Miles Assessed 5,199.5







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Description of this table

Threatened and Impaired
Rivers and Streams

2,804.3 Miles of
Threatened and Impaired
Rivers and Streams

32.7
.0
.0
2,771.6
Total Threatened and Impaired 2,804.3

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Nevada Rivers and Streams 2010

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Aquatic Life 4,691.6 44.9 .0 55.1 color.gifcolor.gif
Enhancement Of Water Quality 71.4 72.1 .0 27.9 color.gifcolor.gif
Fish Consumption 620.4 .0 .0 100.0 color.gif
Freshwater Marsh 25.8 100.0 .0 .0 color.gif
Industrial Supply 3,232.1 100.0 .0 .0 color.gif
Irrigation 4,795.6 90.5 .0 9.5 color.gifcolor.gif
Municipal Or Domestic Supply 4,421.6 91.0 .0 9.0 color.gifcolor.gif
Propagation Of Wildlife 4,854.6 96.1 .0 3.9 color.gifcolor.gif
Recreation Involving Contact With The Water 4,249.8 71.8 .0 28.2 color.gifcolor.gif
Recreation Not Involving Contact With The Water 4,824.4 99.8 .0 .2 color.gifcolor.gif
Watering Of Livestock 4,977.4 98.2 .0 1.8 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Nevada Rivers and Streams 2010

Description of this table
Phosphorus, Total Nutrients color.gif 1,336.3
Temperature, Water Temperature color.gif 1,055.8
Iron Metals (other than Mercury) color.gif 1,012.6
Turbidity Turbidity color.gif 849.8
Total Suspended Solids (TSS) Turbidity color.gif 702.9
Mercury in Fish Tissue Mercury color.gif 620.4
Escherichia Coli (E. Coli) Pathogens color.gif 452.4
Total Dissolved Solids (TDS) Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 427.4
Boron Toxic Inorganics color.gif 220.5
pH pH/Acidity/Caustic Conditions color.gif 214.7
Fluoride Toxic Inorganics color.gif 210.9
Manganese Metals (other than Mercury) color.gif 156.4
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 134.3
Selenium Metals (other than Mercury) color.gif 113.8
Mercury in Sediment Mercury color.gif 110.0
Zinc Metals (other than Mercury) color.gif 96.7
Fecal Coliform Pathogens color.gif 88.1
Copper Metals (other than Mercury) color.gif 61.5
Arsenic Metals (other than Mercury) color.gif 40.1
Mercury in Water Column Mercury color.gif 25.8
Nitrogen, Total Nutrients color.gif 23.5
Chloride Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 20.6
Cadmium Metals (other than Mercury) color.gif 20.0
Sulfates Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 9.3
Orthophosphorus Nutrients color.gif 9.3
Nitrates Nutrients color.gif 4.1
Nickel Metals (other than Mercury) color.gif 3.6
Nitrogen, Nitrate Nutrients color.gif 3.0

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Site-specific Targeted Monitoring Results

Probable Sources
Nevada Rivers and Streams 2010

Description of this table
Source Unknown Unknown color.gif 2,542.2
Agriculture Agriculture color.gif 952.0
Natural Sources Natural/Wildlife color.gif 836.9
Rangeland Grazing Agriculture color.gif 583.7
Grazing In Riparian Or Shoreline Zones Agriculture color.gif 500.6
Impacts From Abandoned Mine Lands (Inactive) Resource Extraction color.gif 193.0
Managed Pasture Grazing Agriculture color.gif 99.8
Mine Tailings Resource Extraction color.gif 99.1
Rural (Residential Areas) Other color.gif 44.4
Flow Alterations From Water Diversions Hydromodification color.gif 37.6
Dam Or Impoundment Hydromodification color.gif 18.8
Open Pit Mining Resource Extraction color.gif 7.4

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Site-specific Targeted Monitoring Results

Nevada Lakes, Reservoirs, and Ponds 2010

Description of this table

All
Lakes, Reservoirs, and Ponds

553,239.0 Acres of Lakes, Reservoirs, and Ponds

Assessed 228,885.6
Unassessed 324,353.4
Total Acres 553,239.0







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Description of this table

Assessed
Lakes, Reservoirs, and Ponds

228,885.6 Acres of
Assessed Lakes, Reservoirs, and Ponds

Good 19,919.1
Threatened .0
Impaired 208,966.5
Total Acres Assessed 228,885.6







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Description of this table

Threatened and Impaired
Lakes, Reservoirs, and Ponds

208,966.5 Acres of
Threatened and Impaired
Lakes, Reservoirs, and Ponds

36,812.0
.0
.0
172,154.5
Total Threatened and Impaired 208,966.5

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Nevada Lakes, Reservoirs, and Ponds 2010

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Aquatic Life 221,087.0 25.3 .0 74.7 color.gifcolor.gif
Enhancement Of Water Quality 419.0 83.5 .0 16.5 color.gifcolor.gif
Fish Consumption 43,448.3 .0 .0 100.0 color.gif
Industrial Supply 185,337.2 100.0 .0 .0 color.gif
Irrigation 185,643.1 98.8 .0 1.2 color.gifcolor.gif
Municipal Or Domestic Supply 185,278.3 79.7 .0 20.3 color.gifcolor.gif
Propagation Of Wildlife 222,628.4 98.8 .0 1.2 color.gifcolor.gif
Recreation Involving Contact With The Water 221,092.2 90.8 .0 9.2 color.gifcolor.gif
Recreation Not Involving Contact With The Water 222,193.5 100.0 .0 .0 color.gif
Watering Of Livestock 187,210.9 80.3 .0 19.7 color.gifcolor.gif
Waters Of Extraordinary Ecological Or Aesthetic Value 36,812.0 .0 .0 100.0 color.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Nevada Lakes, Reservoirs, and Ponds 2010

Description of this table
Turbidity Turbidity color.gif 104,413.2
Phosphorus, Total Nutrients color.gif 72,615.9
Mercury in Fish Tissue Mercury color.gif 43,448.3
Plankton Count Turbidity color.gif 36,812.0
Total Soluble Inorganic Nitrogen as N Nutrients color.gif 36,812.0
Clarity Turbidity color.gif 36,812.0
Total Dissolved Solids (TDS) Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 36,346.7
Arsenic Metals (other than Mercury) color.gif 35,692.0
Selenium Metals (other than Mercury) color.gif 35,490.0
Iron Metals (other than Mercury) color.gif 16,810.0
Mercury in Sediment Mercury color.gif 14,633.0
Total Suspended Solids (TSS) Turbidity color.gif 14,180.0
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 4,001.0
pH pH/Acidity/Caustic Conditions color.gif 2,618.8
Temperature, Water Temperature color.gif 2,556.4
Fluoride Toxic Inorganics color.gif 2,177.0
Nitrogen, Total Nutrients color.gif 77.0

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Site-specific Targeted Monitoring Results

Probable Sources
Nevada Lakes, Reservoirs, and Ponds 2010

Description of this table
Source Unknown Unknown color.gif 118,463.9
Natural Sources Natural/Wildlife color.gif 53,869.2
Agriculture Agriculture color.gif 34,203.4
Impacts From Abandoned Mine Lands (Inactive) Resource Extraction color.gif 23,046.0
Rangeland Grazing Agriculture color.gif 2,856.0
Rural (Residential Areas) Other color.gif 2,264.0
Dam Or Impoundment Hydromodification color.gif 1,244.0
Channel Erosion/Incision From Upstream Hydromodifications Hydromodification color.gif 137.8

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Site-specific Targeted Monitoring Results

Nevada Wetlands 2010

Description of this table

All
Wetlands

136,650.0 Acres of Wetlands

Assessed 47,850.0
Unassessed 88,800.0
Total Acres 136,650.0







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Description of this table

Assessed
Wetlands

47,850.0 Acres of
Assessed Wetlands

Good 655.0
Threatened .0
Impaired 47,195.0
Total Acres Assessed 47,850.0







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Description of this table

Threatened and Impaired
Wetlands

47,195.0 Acres of
Threatened and Impaired
Wetlands

.0
.0
.0
47,195.0
Total Threatened and Impaired 47,195.0

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Nevada Wetlands 2010

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
% Good
% Threatened
% Impaired
Aquatic Life 46,813.0 1.4 .0 98.6 color.gifcolor.gif
Fish Consumption 47,012.0 .0 .0 100.0 color.gif
Industrial Supply 18,313.0 100.0 .0 .0 color.gif
Irrigation 44,263.0 36.6 .0 63.4 color.gifcolor.gif
Municipal Or Domestic Supply 16,393.0 98.9 .0 1.1 color.gifcolor.gif
Propagation Of Wildlife 18,313.0 95.4 .0 4.6 color.gifcolor.gif
Recreation Involving Contact With The Water 16,393.0 94.9 .0 5.1 color.gifcolor.gif
Recreation Not Involving Contact With The Water 18,313.0 100.0 .0 .0 color.gif
Watering Of Livestock 18,313.0 99.0 .0 1.0 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Nevada Wetlands 2010

Description of this table
Mercury in Fish Tissue Mercury color.gif 47,012.0
Mercury in Sediment Mercury color.gif 31,075.0
Boron Toxic Inorganics color.gif 28,053.0
Arsenic Metals (other than Mercury) color.gif 26,133.0
Temperature, Water Temperature color.gif 14,900.0
pH pH/Acidity/Caustic Conditions color.gif 838.0
Phosphorus, Total Nutrients color.gif 183.0
Total Dissolved Solids (TDS) Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 183.0
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 183.0

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Site-specific Targeted Monitoring Results

Probable Sources
Nevada Wetlands 2010

Description of this table
Source Unknown Unknown color.gif 46,158.0
Impacts From Abandoned Mine Lands (Inactive) Resource Extraction color.gif 32,112.0
Natural Sources Natural/Wildlife color.gif 2,758.0
Agriculture Agriculture color.gif 1,920.0

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Nevada Causes of Impairment for Reporting Year 2010


Description of this table
NOTE: Click on the underlined Cause of Impairment Group to see a list of specific state causes of impairment making up the Cause of Impairment Group. See also Pollution categories summary document (PDF) (20 pp, 557K, About PDF) for brief, non-technical descriptions of general cause categories.
Size of Assessed Waters with Listed Causes of Impairment
Mercury 620.4 43,448.3 47,012.0
Metals (other than Mercury) 1,210.3 52,502.0 26,133.0
Nutrients 1,339.3 109,427.9 183.0
Organic Enrichment/Oxygen Depletion 134.3 4,001.0 183.0
Pathogens 473.0
pH/Acidity/Caustic Conditions 214.7 2,618.8 838.0
Salinity/Total Dissolved Solids/Chlorides/Sulfates 427.4 36,346.7 183.0
Temperature 1,055.8 2,556.4 14,900.0
Toxic Inorganics 316.0 2,177.0 28,053.0
Turbidity 896.3 141,225.2

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Nevada Probable Sources Contributing to Impairments
for Reporting Year 2010

Description of this table
NOTE: Click on the underlined Probable Source Group to see a list of specific state Probable Sources making up the Probable Source Group.
Size of Assessed Waters with Probable Sources of Impairments
Agriculture 1,455.5 35,409.4 1,920.0
Hydromodification 56.4 1,381.8
Natural/Wildlife 836.9 53,869.2 2,758.0
Other 44.4 2,264.0
Resource Extraction 273.7 23,046.0 32,112.0
Unknown 2,542.2 118,463.9 46,158.0

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Nevada TMDL Alternatives by Cause of Impairment 2010


No TMDL Alternatives reported.

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Nevada Previously 303(d)-Listed Waters Now Attaining All Applicable Water Quality Standards


No previously 303(d)-listed waters reported as now attaining all applicable water quality standards.

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Nevada Causes of Impairment for 303(d) Listed Waters

Description of this table
NOTE: Click on a cause of impairment (e.g. pathogens) to see the specific state-reported causes that are grouped to make up this category. Click on the "Number of Causes of Impairment Reported" to see a list of waters with that cause of impairment.
Metals (other than Mercury) color.gif 103
Temperature color.gif 72
Nutrients color.gif 71
Mercury color.gif 52
Turbidity color.gif 46
Pathogens color.gif 36
Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 32
pH/Acidity/Caustic Conditions color.gif 28
Toxic Inorganics color.gif 22
Organic Enrichment/Oxygen Depletion color.gif 16

Total: 478 Causes of Impairment

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Nevada Cumulative TMDLs by Pollutant

This chart includes TMDLs since October 1, 1995.

Description of this table
NOTE: Click on the underlined "Pollutant" value to see associated listed waters for which a TMDL was developed. Click on the underlined "Number of TMDLs" value to see a listing of those TMDLs for the pollutant.
Number of Causes of
Impairment Addressed
Phosphorus, Total color.gif 15 15
Total Suspended Solids (TSS) color.gif 15 15
Turbidity color.gif 15 15
Temperature color.gif 6 6
Iron color.gif 4 4
Copper color.gif 2 2
Arsenic color.gif 1 1
Boron color.gif 1 1
Cadmium color.gif 1 1
Dissolved Oxygen color.gif 1 1
Fine Sediment color.gif 1 1
Nickel color.gif 1 2
Nitrogen, Total color.gif 1 1
Solids color.gif 1 1
Total Dissolved Solids (TDS) color.gif 1 1
pH color.gif 1 1

Total: 67 TMDLs; 68 Causes of Impairment Addressed


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Nevada Cumulative Number of TMDLs

EPA Fiscal Year starts October 1 and ends September 30.


Description of this table