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On This Page 303(d) Listed Waters for 2012

Data are also available for these cycles:
2002 2004 2006 2010

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 (2012)

Description of this table
 
    2,704.0 110,059.9 655.0
       239.7 90,137.8
   
                     
                     
                     
                     
    2,713.4 118,825.7 47,195.0
           22.2     36,812.0     
                     
                     
           2,691.2     82,013.7     47,195.0
              .0     .0     .0
                    2,691.2           82,013.7           47,195.0
5,417.4 228,885.6 47,850.0
15,549.0 553,239.0 136,650.0
34.8 41.4 35.0

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Summary of Water Quality Assessments for Each Waterbody Type
for Reporting Year 2012


Site-specific Targeted Monitoring Results

Nevada Rivers and Streams 2012

Description of this table

All
Rivers and Streams

15,549.0 Miles of Rivers and Streams

Assessed 5,417.4
Unassessed 10,131.6
Total Miles 15,549.0







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Description of this table

Assessed
Rivers and Streams

5,417.4 Miles of
Assessed Rivers and Streams

Good 2,704.0
Threatened .0
Impaired 2,713.4
Total Miles Assessed 5,417.4







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Description of this table

Threatened and Impaired
Rivers and Streams

2,713.4 Miles of
Threatened and Impaired
Rivers and Streams

22.2
.0
.0
2,691.2
Total Threatened and Impaired 2,713.4

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Nevada Rivers and Streams 2012

* 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 4,904.3 48.4 .0 51.6 color.gifcolor.gif
Enhancement Of Water Quality 67.3 73.8 .0 26.2 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 3,329.0 100.0 .0 .0 color.gif
Irrigation 5,128.6 91.2 .0 8.8 color.gifcolor.gif
Municipal Or Domestic Supply 4,612.9 91.0 .0 9.0 color.gifcolor.gif
Propagation Of Wildlife 5,087.9 97.5 .0 2.5 color.gifcolor.gif
Recreation Involving Contact With The Water 4,568.1 74.6 .0 25.4 color.gifcolor.gif
Recreation Not Involving Contact With The Water 5,038.0 100.0 .0 .0 color.gifcolor.gif
Watering Of Livestock 5,183.8 98.6 .0 1.4 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Nevada Rivers and Streams 2012

Description of this table
Phosphorus, Total Nutrients color.gif 1,385.7
Iron Metals (other than Mercury) color.gif 1,017.0
Temperature, Water Temperature color.gif 907.5
Mercury in Fish Tissue Mercury color.gif 620.4
Turbidity Turbidity color.gif 606.6
Total Suspended Solids (TSS) Turbidity color.gif 560.1
Total Dissolved Solids (TDS) Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 429.3
Escherichia Coli (E. Coli) Pathogens color.gif 335.7
Manganese Metals (other than Mercury) color.gif 213.4
pH pH/Acidity/Caustic Conditions color.gif 199.6
Boron Toxic Inorganics color.gif 139.7
Selenium Metals (other than Mercury) color.gif 123.1
Fluoride Toxic Inorganics color.gif 122.6
Mercury in Sediment Mercury color.gif 110.0
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 105.0
Copper Metals (other than Mercury) color.gif 54.2
Sulfates Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 50.8
Zinc Metals (other than Mercury) color.gif 46.6
Fecal Coliform Pathogens color.gif 44.7
Cadmium Metals (other than Mercury) color.gif 33.5
Arsenic Metals (other than Mercury) color.gif 33.3
Nickel Metals (other than Mercury) color.gif 27.8
Mercury in Water Column Mercury color.gif 25.8
Nitrogen, Total Nutrients color.gif 14.3
Orthophosphorus Nutrients color.gif 9.3
Nitrogen, Nitrate Nutrients color.gif 7.1

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Site-specific Targeted Monitoring Results

Probable Sources
Nevada Rivers and Streams 2012

Description of this table
Source Unknown Unknown color.gif 2,564.6
Agriculture Agriculture color.gif 1,127.2
Natural Sources Natural/Wildlife color.gif 721.6
Rangeland Grazing Agriculture color.gif 564.8
Grazing In Riparian Or Shoreline Zones Agriculture color.gif 468.4
Non-Point Source Unspecified Nonpoint Source color.gif 222.2
Mine Tailings Resource Extraction color.gif 208.9
Impacts From Abandoned Mine Lands (Inactive) Resource Extraction color.gif 194.5
Rural (Residential Areas) Other color.gif 84.7
Managed Pasture Grazing Agriculture color.gif 61.7
Flow Alterations From Water Diversions Hydromodification color.gif 35.5
Municipal Point Source Discharges Municipal Discharges/Sewage color.gif 23.5
Dam Or Impoundment Hydromodification color.gif 18.8
Open Pit Mining Resource Extraction color.gif 7.6
Acid Mine Drainage Resource Extraction color.gif 3.7

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Site-specific Targeted Monitoring Results

Nevada Lakes, Reservoirs, and Ponds 2012

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 110,059.9
Threatened .0
Impaired 118,825.7
Total Acres Assessed 228,885.6







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Description of this table

Threatened and Impaired
Lakes, Reservoirs, and Ponds

118,825.7 Acres of
Threatened and Impaired
Lakes, Reservoirs, and Ponds

36,812.0
.0
.0
82,013.7
Total Threatened and Impaired 118,825.7

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Nevada Lakes, Reservoirs, and Ponds 2012

* 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 220,737.0 49.3 .0 50.7 color.gifcolor.gif
Enhancement Of Water Quality 419.0 83.5 .0 16.5 color.gifcolor.gif
Fish Consumption 44,435.8 .0 .0 100.0 color.gif
Industrial Supply 183,180.4 100.0 .0 .0 color.gif
Irrigation 185,557.1 98.8 .0 1.2 color.gifcolor.gif
Municipal Or Domestic Supply 185,278.3 99.5 .0 .5 color.gifcolor.gif
Propagation Of Wildlife 222,628.4 98.8 .0 1.2 color.gifcolor.gif
Recreation Involving Contact With The Water 221,296.2 90.4 .0 9.6 color.gifcolor.gif
Recreation Not Involving Contact With The Water 222,681.1 100.0 .0 .0 color.gif
Watering Of Livestock 187,124.9 100.0 .0 .0 color.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 2012

Description of this table
Phosphorus, Total Nutrients color.gif 72,615.9
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 53,340.0
Mercury in Fish Tissue Mercury color.gif 44,435.8
pH pH/Acidity/Caustic Conditions color.gif 38,108.8
Clarity Turbidity color.gif 36,812.0
Plankton Count 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
Turbidity Turbidity color.gif 14,275.4
Total Suspended Solids (TSS) Turbidity color.gif 14,180.0
Temperature, Water Temperature color.gif 4,203.4
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 2012

Description of this table
Source Unknown Unknown color.gif 118,481.7
Natural Sources Natural/Wildlife color.gif 55,652.2
Non-Point Source Unspecified Nonpoint Source color.gif 50,992.0
Agriculture Agriculture color.gif 32,553.4
Impacts From Abandoned Mine Lands (Inactive) Resource Extraction color.gif 23,046.0
Rural (Residential Areas) Other color.gif 2,264.0
Dam Or Impoundment Hydromodification color.gif 1,244.0
Rangeland Grazing Agriculture color.gif 1,206.0

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Site-specific Targeted Monitoring Results

Nevada Wetlands 2012

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 2012

* 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 17,475.0 100.0 .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 2012

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
Iron Metals (other than Mercury) color.gif 1,920.0
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 2012

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 2012


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 44,435.8 47,012.0
Metals (other than Mercury) 1,149.3 52,502.0 28,053.0
Nutrients 1,385.7 72,615.9 183.0
Organic Enrichment/Oxygen Depletion 105.0 53,340.0 183.0
Pathogens 369.6
pH/Acidity/Caustic Conditions 199.6 38,108.8 838.0
Salinity/Total Dissolved Solids/Chlorides/Sulfates 432.9 36,346.7 183.0
Temperature 907.5 4,203.4 14,900.0
Toxic Inorganics 210.8 2,177.0 28,053.0
Turbidity 720.0 51,087.4

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Nevada Probable Sources Contributing to Impairments
for Reporting Year 2012

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 1,605.1 33,759.4 1,920.0
Hydromodification 54.3 1,244.0
Municipal Discharges/Sewage 23.5
Natural/Wildlife 721.6 55,652.2 2,758.0
Other 84.7 2,264.0
Resource Extraction 336.1 23,046.0 32,112.0
Unknown 2,564.6 118,481.7 46,158.0
Unspecified Nonpoint Source 222.2 50,992.0

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Nevada TMDL Alternatives by Cause of Impairment 2012


No TMDL Alternatives reported.

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

Description of this table
NOTE: Click on the underlined "Number of Waters Attaining" value for a detailed list of those previously 303(d)-listed waters now attaining all applicable water quality standards.
2013 color.gif 25 38
2014 color.gif 21 38

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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
Nutrients color.gif 75
Temperature color.gif 67
Mercury color.gif 53
Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 48
pH/Acidity/Caustic Conditions color.gif 34
Turbidity color.gif 32
Pathogens color.gif 30
Toxic Inorganics color.gif 19
Organic Enrichment/Oxygen Depletion color.gif 13

Total: 474 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
NOTE: Click on the underlined "Number of TMDLs Completed" value for a detailed list of the TMDLs for the fiscal year.
2003 color.gif 1 1
2004 color.gif 4 5
2005 color.gif 22 22
2006 color.gif 11 11
2007 color.gif 23 23
2011 color.gif 6 6

Total: 67 TMDLs; 68 Causes of Impairment Addressed

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