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On This Page 303(d) Listed Waters for 2010

Data are also available for these cycles:
2002 2004 2008

Waterbody Changes from Prior Cycle

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Arizona Water Quality Assessment Report

Assessed Waters of Arizona by Watershed

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Display impaired waters and TMDL information only



Site-specific Targeted Monitoring Summary Results

Arizona (2010)

Description of this table
 
    1,356.3 23,608.9
       162.5 40.0
   
                
                
                
                
    1,119.1 72,395.3
           301.1     2,267.2
                
                220.1
           818.0     69,907.9
              20.9     14.5
                    797.2           69,893.4
2,475.4 96,004.2
90,375.0 335,590.0
2.7 28.6

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


Site-specific Targeted Monitoring Results

Arizona Rivers and Streams 2010

Description of this table

All
Rivers and Streams

90,375.0 Miles of Rivers and Streams

Assessed 2,475.4
Unassessed 87,899.6
Total Miles 90,375.0







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Description of this table

Assessed
Rivers and Streams

2,475.4 Miles of
Assessed Rivers and Streams

Good 1,356.3
Threatened .0
Impaired 1,119.1
Total Miles Assessed 2,475.4







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Description of this table

Threatened and Impaired
Rivers and Streams

1,119.1 Miles of
Threatened and Impaired
Rivers and Streams

321.9
.0
.0
797.2
Total Threatened and Impaired 1,119.1

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Arizona 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
Agricultural Irrigation 1,116.2 93.7 .0 6.3 color.gifcolor.gif
Agricultural Livestock Watering 1,612.7 92.4 .0 7.6 color.gifcolor.gif
Aquatic And Wildlife (Coldwater Fishery) 279.6 28.8 .0 71.2 color.gifcolor.gif
Aquatic And Wildlife (Effluent Dependent Water) 64.9 .0 .0 100.0 color.gif
Aquatic And Wildlife (Ephemeral) 50.9 28.6 .0 71.4 color.gifcolor.gif
Aquatic And Wildlife (Warmwater Fishery) 1,047.5 56.4 .0 43.6 color.gifcolor.gif
Domestic Water Source 246.5 86.9 .0 13.1 color.gifcolor.gif
Fish Consumption 2,017.3 91.9 .0 8.1 color.gifcolor.gif
Full Body Contact 1,322.6 66.6 .0 33.4 color.gifcolor.gif
Partial Body Contact 63.2 18.3 .0 81.7 color.gifcolor.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Arizona Rivers and Streams 2010

Description of this table
Escherichia Coli (E. Coli) Pathogens color.gif 334.5
Copper Metals (other than Mercury) color.gif 259.5
Selenium Metals (other than Mercury) color.gif 254.7
Sedimentation/Siltation Sediment color.gif 178.7
pH pH/Acidity/Caustic Conditions color.gif 101.5
DDT Pesticides color.gif 99.6
Chlordane Pesticides color.gif 99.6
Toxaphene Pesticides color.gif 99.6
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 97.4
Zinc Metals (other than Mercury) color.gif 69.1
Mercury in Fish Tissue Mercury color.gif 66.0
Boron Toxic Inorganics color.gif 59.3
Cadmium Metals (other than Mercury) color.gif 58.7
Ammonia, Un-ionized Ammonia color.gif 58.5
Arsenic Metals (other than Mercury) color.gif 35.6
Lead Metals (other than Mercury) color.gif 35.6
Nitrogen, Total Nutrients color.gif 24.1
Chlorine Chlorine color.gif 20.3
Beryllium Metals (other than Mercury) color.gif 15.8
Phosphorus, Elemental Nutrients color.gif 8.0
Phosphorus, Total Nutrients color.gif 7.5
Manganese Metals (other than Mercury) color.gif 1.4

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Site-specific Targeted Monitoring Results

Probable Sources
Arizona Rivers and Streams 2010

Description of this table
Natural Sources Natural/Wildlife color.gif 917.8
Rangeland Grazing Agriculture color.gif 650.5
Mine Tailings Resource Extraction color.gif 591.4
Impacts From Hydrostructure Flow Regulation/Modification Hydromodification color.gif 577.2
Irrigated Crop Production Agriculture color.gif 558.1
Impacts From Abandoned Mine Lands (Inactive) Resource Extraction color.gif 555.3
Post-Development Erosion And Sedimentation Hydromodification color.gif 531.8
Other Recreational Pollution Sources Recreation And Tourism (Non-Boating) color.gif 531.8
Subsurface (Hardrock) Minining Resource Extraction color.gif 500.9
Mill Tailings Industrial color.gif 500.9
On-Site Treatment Systems (Septic Systems And Similar Decencentralized Systems) Municipal Discharges/Sewage color.gif 499.4
Contaminated Sediments Legacy/Historical Pollutants color.gif 479.9
Wildlife Other Than Waterfowl Natural/Wildlife color.gif 445.9
Municipal (Urbanized High Density Area) Urban-Related Runoff/Stormwater color.gif 407.0
Livestock (Grazing Or Feeding Operations) Agriculture color.gif 391.2
Pipeline Breaks Spills/Dumping color.gif 336.0
Natural Conditions - Water Quality Standards Use Attainability Analyses Needed Natural/Wildlife color.gif 289.0
Sources Outside State Juristiction Or Borders Other color.gif 275.7
Internal Nutrient Recycling Natural/Wildlife color.gif 216.0
Residential Districts Urban-Related Runoff/Stormwater color.gif 214.1
Municipal Point Source Discharges Municipal Discharges/Sewage color.gif 208.0
Loss Of Riparian Habitat Habitat Alterations (Not Directly Related To Hydromodification) color.gif 171.2
Woodlot Site Management Silviculture (Forestry) color.gif 132.9
Site Clearance (Land Development Or Redevelopment) Construction color.gif 84.0
Source Unknown Unknown color.gif 73.3
Illegal Dumping Spills/Dumping color.gif 60.1
Golf Courses Recreation And Tourism (Non-Boating) color.gif 45.2
Watershed Runoff Following Forest Fire Silviculture (Forestry) color.gif 31.5
Cercla Npl (Superfund) Sites Legacy/Historical Pollutants color.gif 28.3
Aquaculture (Permitted) Aquaculture color.gif 16.6
Forest Roads (Road Construction And Use) Silviculture (Forestry) color.gif 16.1

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Site-specific Targeted Monitoring Results

Arizona Lakes, Reservoirs, and Ponds 2010

Description of this table

All
Lakes, Reservoirs, and Ponds

335,590.0 Acres of Lakes, Reservoirs, and Ponds

Assessed 96,004.2
Unassessed 239,585.8
Total Acres 335,590.0







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Description of this table

Assessed
Lakes, Reservoirs, and Ponds

96,004.2 Acres of
Assessed Lakes, Reservoirs, and Ponds

Good 23,608.9
Threatened .0
Impaired 72,395.3
Total Acres Assessed 96,004.2







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Description of this table

Threatened and Impaired
Lakes, Reservoirs, and Ponds

72,395.3 Acres of
Threatened and Impaired
Lakes, Reservoirs, and Ponds

2,281.7
.0
220.1
69,893.4
Total Threatened and Impaired 72,395.3

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Site-specific Targeted Monitoring Results

Individual Designated Use Support
Arizona 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
Agricultural Irrigation 12,925.9 96.3 .0 3.7 color.gifcolor.gif
Agricultural Livestock Watering 36,249.6 94.4 .0 5.6 color.gifcolor.gif
Aquatic And Wildlife (Coldwater Fishery) 27,751.5 .0 .0 100.0 color.gif
Aquatic And Wildlife (Effluent Dependent Water) 48.1 .0 .0 100.0 color.gif
Aquatic And Wildlife (Warmwater Fishery) 24,230.2 81.6 .0 18.4 color.gifcolor.gif
Domestic Water Source 8,447.8 100.0 .0 .0 color.gif
Fish Consumption 48,315.0 13.6 .0 86.4 color.gifcolor.gif
Full Body Contact 2,721.3 25.9 .0 74.1 color.gifcolor.gif
Partial Body Contact 29.0 .0 .0 100.0 color.gif

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Site-specific Targeted Monitoring Results

Causes of Impairment
Arizona Lakes, Reservoirs, and Ponds 2010

Description of this table
Mercury in Fish Tissue Mercury color.gif 41,462.3
Selenium Metals (other than Mercury) color.gif 27,044.5
Dissolved Oxygen Organic Enrichment/Oxygen Depletion color.gif 3,457.1
pH pH/Acidity/Caustic Conditions color.gif 2,251.9
Ammonia, Un-ionized Ammonia color.gif 1,660.6
Nitrogen, Total Nutrients color.gif 396.9
Chlordane Pesticides color.gif 286.0
Toxaphene Pesticides color.gif 286.0
DDT Pesticides color.gif 286.0
Phosphorus, Total Nutrients color.gif 125.3
Phosphorus, Elemental Nutrients color.gif 119.7
Aquatic Plants - Native Nuisance Native Species color.gif 14.5
Escherichia Coli (E. Coli) Pathogens color.gif 12.5

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Site-specific Targeted Monitoring Results

Probable Sources
Arizona Lakes, Reservoirs, and Ponds 2010

Description of this table
Impacts From Abandoned Mine Lands (Inactive) Resource Extraction color.gif 67,435.5
Sources Outside State Juristiction Or Borders Other color.gif 41,462.3
Impacts From Hydrostructure Flow Regulation/Modification Hydromodification color.gif 32,300.5
Natural Sources Natural/Wildlife color.gif 32,171.9
Irrigated Crop Production Agriculture color.gif 30,601.6
Rangeland Grazing Agriculture color.gif 30,501.6
Mine Tailings Resource Extraction color.gif 29,347.0
Subsurface (Hardrock) Minining Resource Extraction color.gif 29,296.4
Mill Tailings Industrial color.gif 29,296.4
Internal Nutrient Recycling Natural/Wildlife color.gif 5,202.5
Municipal Point Source Discharges Municipal Discharges/Sewage color.gif 5,202.5
Other Recreational Pollution Sources Recreation And Tourism (Non-Boating) color.gif 5,127.4
Post-Development Erosion And Sedimentation Hydromodification color.gif 5,090.0
On-Site Treatment Systems (Septic Systems And Similar Decencentralized Systems) Municipal Discharges/Sewage color.gif 5,090.0
Residential Districts Urban-Related Runoff/Stormwater color.gif 5,090.0
Municipal (Urbanized High Density Area) Urban-Related Runoff/Stormwater color.gif 3,484.0
Site Clearance (Land Development Or Redevelopment) Construction color.gif 3,457.1
Woodlot Site Management Silviculture (Forestry) color.gif 3,457.1
Source Unknown Unknown color.gif 1,146.5
Non-Point Source Unspecified Nonpoint Source color.gif 325.2
Contaminated Sediments Legacy/Historical Pollutants color.gif 298.6
Watershed Runoff Following Forest Fire Silviculture (Forestry) color.gif 212.1
Forest Roads (Road Construction And Use) Silviculture (Forestry) color.gif 119.7
Livestock (Grazing Or Feeding Operations) Agriculture color.gif 12.5
Pipeline Breaks Spills/Dumping color.gif 12.5
Wildlife Other Than Waterfowl Natural/Wildlife color.gif 12.5

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Arizona 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
Ammonia 58.5 1,660.6
Chlorine 20.3
Mercury 66.0 41,462.3
Metals (other than Mercury) 539.7 27,044.5
Nuisance Native Species 14.5
Nutrients 32.1 396.9
Organic Enrichment/Oxygen Depletion 97.4 3,457.1
Pathogens 334.5 12.5
Pesticides 99.6 286.0
pH/Acidity/Caustic Conditions 101.5 2,251.9
Sediment 178.7
Toxic Inorganics 59.3

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Arizona 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 789.3 30,601.6
Aquaculture 16.6
Construction 84.0 3,457.1
Habitat Alterations (Not Directly Related To Hydromodification) 171.2
Hydromodification 864.8 32,300.5
Industrial 500.9 29,296.4
Legacy/Historical Pollutants 479.9 298.6
Municipal Discharges/Sewage 510.9 5,202.5
Natural/Wildlife 929.4 32,247.0
Other 275.7 41,462.3
Recreation And Tourism (Non-Boating) 570.9 5,127.4
Resource Extraction 591.4 67,435.5
Silviculture (Forestry) 164.4 3,549.4
Spills/Dumping 336.0 12.5
Unknown 73.3 1,146.5
Unspecified Nonpoint Source 325.2
Urban-Related Runoff/Stormwater 508.5 5,117.0

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Arizona TMDL Alternatives by Cause of Impairment 2010


Description of this table
NOTE: Click on the underlined "Number of TMDL Alternatives by Cause of Impairment " value to see a listing of those Causes of Impairment.
Chlordane color.gif 1 186
DDT color.gif 1 186
Toxaphene color.gif 1 186

Total: 3 TMDL Alternatives

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Arizona 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.
2010 color.gif 4 7
2013 color.gif 4 4

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Arizona 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 37
Pesticides color.gif 30
Pathogens color.gif 21
Mercury color.gif 12
Nutrients color.gif 8
Sediment color.gif 8
Ammonia color.gif 8
Organic Enrichment/Oxygen Depletion color.gif 6
pH/Acidity/Caustic Conditions color.gif 5
Toxic Inorganics color.gif 3
Chlorine color.gif 2
Nuisance Native Species color.gif 1

Total: 141 Causes of Impairment

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Arizona 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
Escherichia Coli (E. Coli) color.gif 15 16
Phosphorus, Total color.gif 9 10
Copper color.gif 8 8
pH color.gif 8 9
Turbidity color.gif 7 7
Nitrogen color.gif 6 7
Nitrogen, Total color.gif 6 7
Mercury in Fish Tissue color.gif 5 5
Zinc color.gif 5 5
Cadmium color.gif 4 4
Dissolved Oxygen color.gif 3 3
Suspended Sediment color.gif 3 3
Mercury color.gif 2 2
Ammonia color.gif 1 1
Arsenic color.gif 1 1
Beryllium color.gif 1 1
Chlorophyll-A color.gif 1 2
Lead color.gif 1 1
Phosphorus color.gif 1 2
Total Coliform color.gif 1 2

Total: 88 TMDLs; 96 Causes of Impairment Addressed


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Arizona 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.
2000 color.gif 27 32
2001 color.gif 1 1
2002 color.gif 7 9
2003 color.gif 15 15
2004 color.gif 7 7
2005 color.gif 11 12
2007 color.gif 2 2
2011 color.gif 11 11
2012 color.gif 2 2
2013 color.gif 4 4
2014 color.gif 1 1

Total: 88 TMDLs; 96 Causes of Impairment Addressed

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