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2004 Section 303(d) List Fact Sheet for NEVADA


Water Assessment Information
2004 State Assessment Report

Other Impaired Water 303(d) List Information
The most current report available is 2004
Data are also available for these years:  2002  1998

Click here to see metadata for this report.
List Status
PARTIAL APPROVAL/PARTIAL DISAPPROVAL by EPA on NOV-03-2005.

Waters Listed by Waterbody Type

NOTE: Click on the underlined "Number of Waters on List" value to see a listing of those waters.
Waterbody Type Number of Waters on List
STREAM/CREEK/RIVER color.gif 106
LAKE/RESERVOIR/POND color.gif 13
NOT REPORTED color.gif 10
Total Number of Impaired Waters Reported: 129

Waters Listed by Watershed

NOTE: Click on the underlined "Watershed Name" to view a Watershed report. Click on the underlined "Number of Waters on List" value to see a listing of those waters.
Watershed Name Number of Waters on List Percent of Reported
Bruneau color.gif 3 2.33
Carson Desert color.gif 10 7.75
East Walker color.gif 4 3.10
Havasu-Mohave Lakes color.gif 2 1.55
Lake Mead color.gif 2 1.55
Lake Tahoe color.gif 10 7.75
Las Vegas Wash color.gif 1 .78
Little Humboldt color.gif 3 2.33
Lower Humboldt color.gif 4 3.10
Lower Quinn color.gif 1 .78
Lower Virgin color.gif 2 1.55
Meadow Valley Wash color.gif 2 1.55
Middle Carson color.gif 5 3.88
Middle Humboldt color.gif 3 2.33
Muddy color.gif 1 .78
North Fork Humboldt color.gif 9 6.98
Not Reported color.gif 15 11.63
Pyramid-Winnemucca Lakes color.gif 1 .78
Rock color.gif 1 .78
Salmon Falls color.gif 2 1.55
South Fork Humboldt color.gif 3 2.33
South Fork Owyhee color.gif 4 3.10
Spring-Steptoe Valleys color.gif 3 2.33
Truckee color.gif 12 9.30
Upper Carson color.gif 9 6.98
Upper Humboldt color.gif 8 6.20
Upper Owyhee color.gif 4 3.10
Walker color.gif 2 1.55
Walker Lake color.gif 3 2.33
West Walker color.gif 5 3.88
Total Number of Impaired Waters Reported: 129
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Causes of Impairment

NOTE: Click on the underlined "Cause of Impairment Reported" value to see a listing of those waters with that cause of impairment. Click on the underlined "General Impairment Name" to see the detailed state-reported impairment names.
General Impairment Name Cause of Impairment Reported Percent of Reported
METALS (OTHER THAN MERCURY) color.gif 129 38.86
NUTRIENTS color.gif 55 16.57
TURBIDITY color.gif 45 13.55
TEMPERATURE color.gif 33 9.94
SALINITY/TDS/SULFATES/CHLORIDES color.gif 21 6.33
MERCURY color.gif 18 5.42
PH color.gif 13 3.92
TOXIC INORGANICS color.gif 10 3.01
ORGANIC ENRICHMENT/OXYGEN DEPLETION color.gif 5 1.51
PATHOGENS color.gif 3 .90
Total Number of Causes of Impairment Reported: 332

Cause of Impairment Priorities

NOTE: Click on the underlined "Cause of Impairment Reported" value to see a listing of those waters with that impairment priority.
Priority Cause of Impairment Reported Percent of Reported
NOT REPORTED color.gif 332 100.00
Total Number of Causes of Impairment Reported: 332

Approved TMDLs by Pollutant since October 1, 1995

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 Approved" value to see a listing of those approved TMDLs for the pollutant. EPA is in the process of collecting TMDL information from the states. Because these efforts are on-going, there may be additional approved TMDLs that were not included in the listings below.
Pollutant Number of TMDLs Approved Percent of Reported
TOTAL SUSPENDED SOLIDS color.gif 16 27.59
TURBIDITY color.gif 15 25.86
TOTAL PHOSPHORUS color.gif 8 13.79
IRON color.gif 3 5.17
COPPER color.gif 3 5.17
TEMPERATURE color.gif 2 3.45
TOTAL DISSOLVED SOLIDS color.gif 2 3.45
PHOSPHORUS color.gif 2 3.45
BORON color.gif 1 1.72
NICKEL color.gif 1 1.72
ARSENIC color.gif 1 1.72
PH color.gif 1 1.72
DISSOLVED OXYGEN color.gif 1 1.72
CADMIUM color.gif 1 1.72
SOLIDS color.gif 1 1.72
Total Number of TMDLs Reported to EPA since October 1, 1995: 58

Approved TMDLS by EPA Fiscal Year (October 1 through September 30) since October 1, 1995

Fiscal Year Number of TMDLs Approved Percent Approved
2003 color.gif 1 1.72
2004 color.gif 5 8.62
2005 color.gif 22 37.93
2006 color.gif 7 12.07
2007 color.gif 23 39.66


TMDL Document Search

Full Text Search of TMDL Documents is available here.

External Links


The following agencies may also have relevant environmental information:
U. S. Geological Survey Data Exiting EPA Website


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