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Assessment Data for the State of Missouri Year 2008
National Assessment Database
-
Total Assessed Waters of Missouri
-
Assessed Waters of Missouri by Watershed (8 Digit USGS Cataloging Unit)
- Water Quality by Waterbody Type
- Rivers, Streams, and Creeks
- Lakes, Ponds, and Reservoirs
- Causes of Impairment
- Probable Sources Contributing to Impairment
- Glossary
State of Missouri websites: |
State 305(b) Water Quality Assessment Report(s) |
Search for a Waterbody within Missouri
Total Assessed Waters for the State of Missouri
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) | Great Lakes Connecting Channel (Miles) | Inland Lake Shoreline (Miles) | ||
| Total Assessed Waters | 16,165.00 | 292,480.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| Estimated Total Water Size in MO | 51,978.00 | 293,319.00 | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | |
| Percent of Waters Assessed | 31.10 | 99.71 | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | |
Assessed Waters of Missouri by Watershed (8 Digit USGS Cataloging Unit)
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) | Inland Lake Shoreline (Miles) | Great Lakes Connecting Channel (Miles) | ||
| 8-digit HUC Name Not Reported | 102.30 | 4,473.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| BEAR-WYACONDA | 275.00 | 170.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| BEAVER RESERVOIR | 43.50 | 43,100.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| BIG | 475.60 | 1,555.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| BIG PINEY | 259.50 | 55.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| BLACKWATER | 84.00 | 1,350.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| BOURBEUSE | 311.80 | 217.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| BULL SHOALS LAKE | 311.30 | 10,730.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| CAHOKIA-JOACHIM | 316.40 | 922.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| CUIVRE | 319.50 | 386.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| CURRENT | 694.80 | 45.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| ELEVEN POINT | 164.50 | 135.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| ELK | 156.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| HARRY S. TRUMAN RESEVOIR | 292.30 | 56,452.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| INDEPENDENCE-SUGAR | 179.00 | 1,766.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| JAMES | 376.50 | 43,463.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| KEG-WEEPING WATER | 179.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LAKE O' THE CHEROKEES | 18.50 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LAKE OF THE OZARKS | 251.40 | 59,627.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LAMINE | 270.00 | 262.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LITTLE CHARITON | 116.50 | 7,722.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LITTLE OSAGE | 65.50 | 96.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LITTLE RIVER DITCHES | 354.50 | 2,018.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LOWER BLACK | 37.50 | 49.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LOWER CHARITON | 211.00 | 1,042.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LOWER DES MOINES | 29.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LOWER GASCONADE | 447.20 | 517.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LOWER GRAND | 293.50 | 5,775.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LOWER MARAIS DES CYGNES | 68.00 | 223.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LOWER MISSISSIPPI-MEMPHIS | 143.00 | 52.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LOWER MISSOURI | 500.70 | 937.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LOWER MISSOURI-CROOKED | 520.90 | 5,562.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LOWER MISSOURI-MOREAU | 1,241.20 | 56,774.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LOWER OSAGE | 363.60 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| LOWER ST. FRANCIS | 161.50 | 261.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| MARMATON | 88.00 | 274.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| MERAMEC | 813.30 | 713.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| NEW MADRID-ST. JOHNS | 136.00 | 132.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| NIANGUA | 335.00 | 59,880.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| NISHNABOTNA | 11.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| NODAWAY | 60.00 | 110.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| NORTH FABIUS | 150.00 | 599.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| NORTH FORK SALT | 78.00 | 18,857.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| NORTH FORK WHITE | 396.20 | 1,026.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| ONE HUNDRED AND TWO | 74.50 | 1,073.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| PERUQUE-PIASA | 224.00 | 858.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| PLATTE | 236.60 | 7,374.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| POMME DE TERRE | 231.10 | 63,420.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| SAC | 486.60 | 24,800.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| SALT | 103.50 | 18,811.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| SOUTH FABIUS | 102.50 | 365.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| SOUTH FORK SALT | 121.00 | 18,740.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| SOUTH GRAND | 152.00 | 58,757.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| SPRING | 85.00 | 140.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| SPRING | 433.50 | 255.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| TARKIO-WOLF | 234.00 | 1,257.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| THE SNY | 296.50 | 48.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| THOMPSON | 196.00 | 768.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| UPPER BLACK | 578.80 | 1,891.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| UPPER CHARITON | 166.60 | 1,181.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| UPPER GASCONADE | 588.50 | 34.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| UPPER GRAND | 308.50 | 2,085.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| UPPER MISSISSIPPI-CAPE GIRARDEAU | 548.50 | 513.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| UPPER ST. FRANCIS | 453.50 | 9,269.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
| WHITEWATER | 580.50 | 162.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | |
Missouri 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 |
|||||
| Drinking Water Supply | 2,808.70 | 98.40 | .00 | 1.60 | |
| Human Health Protection (Fish Consumption And Secondary Contact Recreation) | 1,259.70 | 52.77 | .00 | 47.23 | |
| Industrial Process Water And Industrial Cooling Water | 1,223.00 | 100.00 | .00 | .00 | |
| Irrigation | 3,851.30 | 100.00 | .00 | .00 | |
| Livestock And Wildlife Watering | 3.60 | 100.00 | .00 | .00 | |
| Protection Of Aquatic Life (General Warm-Water Fishery) | 14,371.80 | 85.21 | .00 | 14.79 | |
| Use Code | 266.00 | .00 | .00 | 100.00 | |
| Whole Body Contact Recreation | 6,009.00 | 88.13 | .00 | 11.87 | |
Missouri Assessed Waters
Overall Water Quality Attainment for Rivers and Streams
Description of this table
| Attainment Status | Miles | Percent of Assessed |
| Good | 12,952.40 | 80.13 |
| Threatened | .00 | .00 |
| Impaired | 3,212.60 | 19.87 |
| Total Miles Assessed | 16,165.00 | 100.00 |
Missouri Top Causes of Impairments
for Rivers and Streams
Description of this table
| # | State Cause Name | Total Miles Impaired |
|---|---|---|
| 1 | ORGANIC ENRICHMENT/LOW DISSOLVED OXYGEN | 996.20 |
| 2 | PATHOGENS | 721.50 |
| 3 | MERCURY | 499.00 |
| 4 | HABITAT ALTERATIONS (OTHER THAN FLOW) | 440.50 |
| 5 | LEAD | 276.50 |
| 6 | DISSOLVED OXYGEN | 195.50 |
| 7 | CAUSE UNKNOWN | 170.00 |
| 8 | SILTATION | 128.00 |
| 9 | ZINC | 122.00 |
| 10 | CADMIUM | 121.40 |
Missouri Top Probable Sources of Impairments
for Rivers and Streams
Description of this table
| # | State Source Name | Total Miles Impaired by Source |
|---|---|---|
| 1 | SOURCE UNKNOWN | 1,220.20 |
| 2 | ATMOSPHERIC DEPOSITION | 509.00 |
| 3 | CHANNELIZATION | 440.50 |
| 4 | MUNICIPAL POINT SOURCE DISCHARGES | 363.50 |
| 5 | MILL TAILINGS | 255.50 |
| 6 | LIVESTOCK (GRAZING OR FEEDING OPERATIONS) | 222.00 |
| 7 | AGRICULTURE | 186.50 |
| 8 | HYDROMODIFICATION | 113.50 |
| 9 | URBAN RUNOFF/STORM SEWERS | 110.00 |
| 10 | FLOW REGULATION/MODIFICATION | 82.00 |
Missouri 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 |
|||||
| Drinking Water Supply | 100,248.00 | 99.96 | .00 | .04 | |
| Human Health Protection (Fish Consumption And Secondary Contact Recreation) | 240,357.00 | 91.63 | .00 | 8.37 | |
| Industrial Process Water And Industrial Cooling Water | 7,003.00 | 100.00 | .00 | .00 | |
| Irrigation | 29.00 | 100.00 | .00 | .00 | |
| Protection Of Aquatic Life (General Warm-Water Fishery) | 292,120.00 | 99.40 | .00 | .60 | |
| Whole Body Contact Recreation | 260,637.00 | 100.00 | .00 | .00 | |
Missouri Assessed Waters
Overall Water Quality Attainment for Lakes, Ponds and Reservoirs
Description of this table
| Attainment Status | Acres | Percent of Assessed |
| Good | 270,580.00 | 92.51 |
| Threatened | .00 | .00 |
| Impaired | 21,900.00 | 7.49 |
| Total Acres Assessed | 292,480.00 | 100.00 |
Missouri Top Causes of Impairments
for Lakes, Ponds and Reservoirs
Description of this table
| # | State Cause Name | Total Acres Impaired |
|---|---|---|
| 1 | MERCURY | 20,114.00 |
| 2 | ORGANIC ENRICHMENT/LOW DISSOLVED OXYGEN | 1,730.00 |
| 3 | PESTICIDES | 38.00 |
Missouri Top Probable Sources of Impairments
for Lakes, Ponds and Reservoirs
Description of this table
| # | State Source Name | Total Acres Impaired by Source |
|---|---|---|
| 1 | ATMOSPHERIC DEPOSITION | 20,114.00 |
| 2 | UPSTREAM IMPOUNDMENTS (E.G., PL-566 NRCS STRUCTURES) | 1,730.00 |
| 3 | CROP-RELATED SOURCES | 38.00 |
Missouri
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 Water (Square Miles) | Great Lakes Connecting Channel (Miles) | Inland Lake Shoreline (Miles) | ||
| Ammonia, Un-ionized | 39.90 | ||||||||||
| Cadmium | 121.40 | ||||||||||
| Cause Unknown | 170.00 | ||||||||||
| Chlorides | 33.90 | ||||||||||
| Chlorine | 24.50 | ||||||||||
| Color | .40 | ||||||||||
| Cyanide | 34.00 | ||||||||||
| Dissolved Oxygen | 195.50 | ||||||||||
| Flow Alteration(s) | 99.00 | ||||||||||
| Habitat Alterations (Other Than Flow) | 440.50 | ||||||||||
| Lead | 276.50 | ||||||||||
| Mercury | 499.00 | 20,114.00 | |||||||||
| Nickel | 44.30 | ||||||||||
| Organic Enrichment/Low Dissolved Oxygen | 996.20 | 1,730.00 | |||||||||
| Pathogens | 721.50 | ||||||||||
| Pesticides | 45.00 | 38.00 | |||||||||
| Salinity/Total Dissolved Solids/Chlorides | 26.00 | ||||||||||
| Siltation | 128.00 | ||||||||||
| Sulfates | 6.50 | ||||||||||
| Thermal Modifications | 31.50 | ||||||||||
| Turbidity | 43.00 | ||||||||||
| Zinc | 122.00 | ||||||||||
| pH | 42.50 | ||||||||||
Missouri
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 Water (Square Miles) | Great Lakes Connecting Channel (Miles) | Inland Lake Shoreline (Miles) | ||
| Abandoned Mining | 5.50 | ||||||||||
| Agriculture | 186.50 | ||||||||||
| Atmospheric Deposition | 509.00 | 20,114.00 | |||||||||
| Channelization | 440.50 | ||||||||||
| Crop-Related Sources | 45.00 | 38.00 | |||||||||
| Flow Regulation/Modification | 82.00 | ||||||||||
| Hydromodification | 113.50 | ||||||||||
| Industrial Permitted | 4.00 | ||||||||||
| Industrial Point Source Discharge | 23.40 | ||||||||||
| Land Disposal | 18.00 | ||||||||||
| Livestock (Grazing Or Feeding Operations) | 222.00 | ||||||||||
| Mill Tailings | 255.50 | ||||||||||
| Mine Tailings | 28.00 | ||||||||||
| Municipal Point Source Discharges | 363.50 | ||||||||||
| Natural Sources | 7.00 | ||||||||||
| Other | 43.00 | ||||||||||
| Recreational And Tourism Activities (Non-Boating) | 45.00 | ||||||||||
| Source Unknown | 1,220.20 | ||||||||||
| Subsurface (Hardrock) Mining | 31.00 | ||||||||||
| Surface Mining | 16.00 | ||||||||||
| Upstream Impoundments (E.G., Pl-566 Nrcs Structures) | 46.00 | 1,730.00 | |||||||||
| Urban Runoff/Storm Sewers | 110.00 | ||||||||||
