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Assessment Data for the State of Arizona Year 2002
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Impaired Water Information
Other Water Assessment Information
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| NOTE: Arizona has waters where use attainment was Inconclusive for all uses. Those waters are not included in these summary numbers. For a summary of those waters, see Arizona's 305(b) report. |
State of Arizona websites: | State 305(b) Water Quality Assessment Report(s) |
| State Water Quality Program |
Search for a Waterbody within Arizona
Total Assessed Waters for the State of Arizona
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 | 1,613.68 | 22,715.27 | .00 | .00 | .00 | .00 | .00 | .00 |
| Estimated Total Water Size in AZ | 90,375.00 | 335,590.00 | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Percent of Waters Assessed | 1.79 | 6.77 | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
Assessed Waters of Arizona 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) | |
| AGUA FRIA | 30.18 | 49.19 | .00 | .00 | .00 | .00 | .00 | .00 |
| BIG CHINO-WILLIAMSON VALLEY | .00 | 7.36 | .00 | .00 | .00 | .00 | .00 | .00 |
| BIG SANDY | 45.86 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BILL WILLIAMS | 15.06 | 1,414.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BRAWLEY WASH | .00 | 118.45 | .00 | .00 | .00 | .00 | .00 | .00 |
| BURRO | 85.62 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| GRAND CANYON | 27.62 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HASSAYAMPA | 72.84 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HAVASU-MOHAVE LAKES | 40.44 | 16,121.79 | .00 | .00 | .00 | .00 | .00 | .00 |
| IMPERIAL RESERVOIR | 30.98 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LITTLE COLORADO HEADWATERS | 16.88 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER COLORADO | 32.19 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER COLORADO-MARBLE CANYON | 16.34 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER GILA | 28.25 | 186.03 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER GILA-PAINTED ROCK RESERVOIR | 5.28 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER LAKE POWELL | 16.34 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER SALT | 10.14 | 1,290.24 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER SAN PEDRO | 103.07 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER VERDE | 160.27 | 2,396.27 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOWER VIRGIN | 10.08 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MIDDLE GILA | 18.76 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MIDDLE LITTLE COLORADO | 48.90 | 158.68 | .00 | .00 | .00 | .00 | .00 | .00 |
| PARIA | 29.43 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| RILLITO | .00 | 14.46 | .00 | .00 | .00 | .00 | .00 | .00 |
| SAN FRANCISCO | 114.98 | 119.74 | .00 | .00 | .00 | .00 | .00 | .00 |
| SAN SIMON | 25.63 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SANTA MARIA | 13.70 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SILVER | 72.62 | 110.85 | .00 | .00 | .00 | .00 | .00 | .00 |
| TONTO | 49.80 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER GILA-MANGAS | 15.24 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER GILA-SAN CARLOS RESERVOIR | 114.97 | 33.18 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER LITTLE COLORADO | 6.07 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER SALT | 53.66 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER SAN PEDRO | 82.93 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER SANTA CRUZ | 87.92 | 419.40 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPPER VERDE | 107.30 | 275.63 | .00 | .00 | .00 | .00 | .00 | .00 |
| WHITEWATER DRAW | 27.91 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| WILLCOX PLAYA | 12.76 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
Arizona 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 | 1,100.22 | 70.43 | .00 | 29.57 | |
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Recreation | 933.48 | 89.69 | .00 | 10.31 | |
 |
Public Water Supply | 283.63 | 94.01 | .00 | 5.99 | |
 |
Aquatic Life Harvesting | 1,201.73 | 99.17 | .00 | .83 | |
 |
Agricultural | 1,263.11 | 93.05 | .00 | 6.95 | |
Arizona Assessed Waters
Water Quality Attainment for Rivers and Streams
Description of this table
| Attainment Status | Miles | Percent of Assessed |
| Good | 1,253.51 | 77.68 |
| Threatened | .00 | .00 |
| Impaired | 360.17 | 22.32 |
| Total Miles Assessed | 1,613.68 | 100.00 |
Arizona Top Causes of Impairments
for Rivers and Streams
Description of this table
| # | State Cause Name | Total Miles Impaired |
|---|---|---|
| 1 | TURBIDITY | 124.49 |
| 2 | COPPER | 118.77 |
| 3 | ZINC | 84.60 |
| 4 | TOTAL COLIFORM | 61.62 |
| 5 | CADMIUM | 36.67 |
| 6 | IMPAIRMENT UNKNOWN | 28.53 |
| 7 | PH | 18.32 |
| 8 | SILVER | 17.38 |
| 9 | NITRATES | 15.49 |
| 10 | BERYLLIUM | 10.00 |
Arizona Top Probable Sources of Impairments
for Rivers and Streams
Description of this table
| # | State Source Name | Total Miles Impaired by Source |
|---|---|---|
| 1 | SOURCE UNKNOWN | 145.30 |
| 2 | MINE TAILINGS | 122.45 |
| 3 | IMPACTS FROM ABANDONED MINE LANDS (INACTIVE) | 90.11 |
| 4 | SOURCES OUTSIDE STATE JURISDICTION OR BORDERS | 71.73 |
| 5 | OTHER RECREATIONAL POLLUTION SOURCES | 53.59 |
| 6 | RANGELAND (UNMANAGED PASTURE) GRAZING | 51.38 |
| 7 | SUBSURFACE (HARDROCK) MININING | 28.94 |
| 8 | MILL TAILINGS | 28.94 |
| 9 | MUNICIPAL POINT SOURCE DISCHARGES | 27.70 |
| 10 | CERCLA NPL (SUPERFUND) SITES | 15.49 |
Arizona 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 | 21,968.35 | 89.66 | .00 | 10.34 | |
|
Recreation | 18,281.69 | 89.72 | .00 | 10.28 | |
|
Public Water Supply | 19,791.73 | 100.00 | .00 | .00 | |
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Aquatic Life Harvesting | 22,119.84 | 99.24 | .00 | .76 | |
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Agricultural | 22,153.54 | 91.67 | .00 | 8.33 | |
Arizona Assessed Waters
Water Quality Attainment for Lakes, Ponds and Reservoirs
Description of this table
| Attainment Status | Acres | Percent of Assessed |
| Good | 20,275.52 | 89.26 |
| Threatened | .00 | .00 |
| Impaired | 2,439.75 | 10.74 |
| Total Acres Assessed | 22,715.27 | 100.00 |
Arizona Top Causes of Impairments
for Lakes, Ponds and Reservoirs
Description of this table
| # | State Cause Name | Total Acres Impaired |
|---|---|---|
| 1 | PH | 1,973.87 |
| 2 | OXYGEN, DISSOLVED | 1,820.16 |
| 3 | IMPAIRMENT UNKNOWN | 1,414.00 |
| 4 | PHOSPHORUS, ELEMENTAL | 230.59 |
| 5 | TOTAL NITROGEN AS N | 230.59 |
| 6 | TOTAL COLIFORM | 186.03 |
| 7 | MERCURY | 169.00 |
Arizona 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 | 1,752.45 |
| 2 | INTERNAL NUTRIENT RECYCLING | 670.72 |
| 3 | IMPACTS FROM HYDROSTRUCTURE FLOW REGULATION/MODIFICATION | 620.42 |
| 4 | CONSTRUCTION STORMWATER DISCHARGE (PERMITTED) | 186.03 |
| 5 | IRRIGATED CROP PRODUCTION | 186.03 |
| 6 | RESIDENTIAL DISTRICTS | 186.03 |
| 7 | POST-DEVELOPMENT EROSION AND SEDIMENTATION | 186.03 |
| 8 | SITE CLEARANCE (LAND DEVELOPMENT OR REDEVELOPMENT) | 186.03 |
| 9 | MUNICIPAL (URBANIZED HIGH DENSITY AREA) | 186.03 |
| 10 | ATMOSPHERIC DEPOSITON - TOXICS | 169.00 |
Arizona
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 | 84.60 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ARSENIC | 3.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NITRATES | 15.49 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BORON | 5.28 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SILVER | 17.38 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MANGANESE | 9.77 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TOTAL NITROGEN AS N | .00 | 230.59 | .00 | .00 | .00 | .00 | .00 | .00 |
| CYANIDE | 8.68 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MERCURY | .00 | 169.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TOTAL COLIFORM | 61.62 | 186.03 | .00 | .00 | .00 | .00 | .00 | .00 |
| CADMIUM | 36.67 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CHLORINE | 6.24 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BERYLLIUM | 10.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| IMPAIRMENT UNKNOWN | 28.53 | 1,414.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PHOSPHORUS, ELEMENTAL | .00 | 230.59 | .00 | .00 | .00 | .00 | .00 | .00 |
| PH | 18.32 | 1,973.87 | .00 | .00 | .00 | .00 | .00 | .00 |
| COPPER | 118.77 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TURBIDITY | 124.49 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| OXYGEN, DISSOLVED | .00 | 1,820.16 | .00 | .00 | .00 | .00 | .00 | .00 |
Arizona
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) | |
| CLEAN SEDIMENTS | 1.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| FOREST ROADS (ROAD CONSTRUCTION AND USE) | .00 | 119.74 | .00 | .00 | .00 | .00 | .00 | .00 |
| SANITARY SEWER OVERFLOWS (COLLECTION SYSTEM FAILURES) | 11.14 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| RESIDENTIAL DISTRICTS | .00 | 186.03 | .00 | .00 | .00 | .00 | .00 | .00 |
| RANGELAND (UNMANAGED PASTURE) GRAZING | 51.38 | 119.74 | .00 | .00 | .00 | .00 | .00 | .00 |
| IMPACTS FROM ABANDONED MINE LANDS (INACTIVE) | 90.11 | 50.55 | .00 | .00 | .00 | .00 | .00 | .00 |
| SITE CLEARANCE (LAND DEVELOPMENT OR REDEVELOPMENT) | .00 | 186.03 | .00 | .00 | .00 | .00 | .00 | .00 |
| IRRIGATED CROP PRODUCTION | 5.28 | 186.03 | .00 | .00 | .00 | .00 | .00 | .00 |
| INTERNAL NUTRIENT RECYCLING | .00 | 670.72 | .00 | .00 | .00 | .00 | .00 | .00 |
| ATMOSPHERIC DEPOSITON - TOXICS | .00 | 169.00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOURCES OUTSIDE STATE JURISDICTION OR BORDERS | 71.73 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| IMPACTS FROM HYDROSTRUCTURE FLOW REGULATION/MODIFICATION | .00 | 620.42 | .00 | .00 | .00 | .00 | .00 | .00 |
| ILLEGAL DUMPING | 15.49 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SUBSURFACE (HARDROCK) MININING | 28.94 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| OTHER RECREATIONAL POLLUTION SOURCES | 53.59 | 94.65 | .00 | .00 | .00 | .00 | .00 | .00 |
| MUNICIPAL (URBANIZED HIGH DENSITY AREA) | .00 | 186.03 | .00 | .00 | .00 | .00 | .00 | .00 |
| MINE TAILINGS | 122.45 | 50.55 | .00 | .00 | .00 | .00 | .00 | .00 |
| MUNICIPAL POINT SOURCE DISCHARGES | 27.70 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ON-SITE TREATMENT SYSTEMS (SEPTIC SYSTEMS AND SIMILAR DECENTRALIZED SYSTEMS) | 1.00 | 125.48 | .00 | .00 | .00 | .00 | .00 | .00 |
| MILL TAILINGS | 28.94 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| POST-DEVELOPMENT EROSION AND SEDIMENTATION | .00 | 186.03 | .00 | .00 | .00 | .00 | .00 | .00 |
| CONSTRUCTION STORMWATER DISCHARGE (PERMITTED) | .00 | 186.03 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOURCE UNKNOWN | 145.30 | 1,752.45 | .00 | .00 | .00 | .00 | .00 | .00 |
| WOODLOT SITE MANAGEMENT | .00 | 119.74 | .00 | .00 | .00 | .00 | .00 | .00 |
| CERCLA NPL (SUPERFUND) SITES | 15.49 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
