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Assessment Data for the State of District Of Columbia Year 2004
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State of District Of Columbia websites: | No State 305(b) Water Quality Assessment Report is available. |
| State Water Quality Program |
Search for a Waterbody within District Of Columbia
Total Assessed Waters for the State of District Of Columbia
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) | Inland Lake Shoreline (Miles) | |
| Total Assessed Waters | 38.40 | 238.40 | 5.93 | .00 | .00 | .00 | .00 | .00 | .00 |
| Estimated Total Water Size in DC | 39.00 | 238.40 | 6.00 | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Percent of Waters Assessed | 98.46 | 100.00 | 98.83 | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
Assessed Waters of District Of Columbia 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) | |
| 8-digit HUC Name Not Reported | 6.30 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MIDDLE POTOMAC-ANACOSTIA-OCCOQUAN | 32.10 | 238.40 | 5.93 | .00 | .00 | .00 | .00 | .00 | .00 |
District Of Columbia 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 |
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| NAVIGATION | 9.50 | 100.00 | .00 | .00 | |
| PRIMARY CONTACT RECREATION | 37.60 | .00 | .00 | 100.00 | |
| PROTECTION AND PROPAGATION OF FISH, SHELLFISH AND WILDLIFE | 34.10 | .00 | .00 | 100.00 | |
| PROTECTION OF HUMAN HEALTH RELATED TO CONSUMPTION OF FISH AND SHELLFISH | 35.60 | .00 | .00 | 100.00 | |
| SECONDARY CONTACT RECREATION AND AESTHETIC ENJOYMENT | 37.60 | .00 | .00 | 100.00 | |
District Of Columbia Assessed Waters
Water Quality Attainment for Rivers and Streams
Description of this table
| Attainment Status | Miles | Percent of Assessed |
| Good | .00 | .00 |
| Threatened | .00 | .00 |
| Impaired | 38.40 | 100.00 |
| Total Miles Assessed | 38.40 | 100.00 |
District Of Columbia Top Causes of Impairments
for Rivers and Streams
Description of this table
| # | State Cause Name | Total Miles Impaired |
|---|---|---|
| 1 | FECAL COLIFORM | 37.60 |
| 2 | COMBINATION BENTHIC/FISHES BIOASSESSMENTS (STREAMS) | 34.10 |
| 3 | PARTICLE DISTRIBUTION (EMBEDDEDNESS) | 28.00 |
| 4 | OTHER FLOW REGIME ALTERATIONS | 17.90 |
| 5 | DEBRIS/FLOATABLES/TRASH | 16.50 |
| 6 | COMBINED BIOTA/HABITAT BIOASSESSMENTS (STREAMS) | 13.00 |
| 7 | ALTERATIONS IN WETLAND HABITATS | 6.20 |
| 8 | FISHES BIOASSESSMENTS (STREAMS) | 6.20 |
| 9 | BENTHIC-MACROINVERTEBRATE BIOASSESSMENTS (STREAMS) | 6.20 |
| 10 | ALTERATION IN STREAM-SIDE OR LITTORAL VEGETATIVE COVERS | 5.10 |
District Of Columbia Top Probable Sources of Impairments
for Rivers and Streams
Description of this table
| # | State Source Name | Total Miles Impaired by Source |
|---|---|---|
| 1 | RESIDENTIAL DISTRICTS | 30.90 |
| 2 | DISCHARGES FROM MUNICIPAL SEPARATE STORM SEWER SYSTEMS (MS4) | 23.50 |
| 3 | WET WEATHER DISCHARGES (POINT SOURCE AND COMBINATION OF STORMWATER, SSO OR CSO) | 18.70 |
| 4 | WET WEATHER DISCHARGES (NON-POINT SOURCE) | 18.70 |
| 5 | YARD MAINTENANCE | 15.60 |
| 6 | HYDROSTRUCTURE IMPACTS ON FISH PASSAGE | 15.40 |
| 7 | SOURCE UNKNOWN | 15.10 |
| 8 | IMPACTS FROM HYDROSTRUCTURE FLOW REGULATION/MODIFICATION | 13.90 |
| 9 | ILLEGAL DUMPS OR OTHER INAPPROPRIATE WASTE DISPOSAL | 11.40 |
| 10 | ILLEGAL DUMPING | 9.90 |
District Of Columbia 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 |
|||||
| NAVIGATION | 238.40 | 100.00 | .00 | .00 | |
| PRIMARY CONTACT RECREATION | 238.40 | .00 | .00 | 100.00 | |
| PROTECTION AND PROPAGATION OF FISH, SHELLFISH AND WILDLIFE | 238.40 | 11.45 | .00 | 88.55 | |
| PROTECTION OF HUMAN HEALTH RELATED TO CONSUMPTION OF FISH AND SHELLFISH | 238.40 | .00 | .00 | 100.00 | |
| SECONDARY CONTACT RECREATION AND AESTHETIC ENJOYMENT | 238.40 | 45.47 | .00 | 54.53 | |
District Of Columbia Assessed Waters
Water Quality Attainment for Lakes, Ponds and Reservoirs
Description of this table
| Attainment Status | Acres | Percent of Assessed |
| Good | .00 | .00 |
| Threatened | .00 | .00 |
| Impaired | 238.40 | 100.00 |
| Total Acres Assessed | 238.40 | 100.00 |
District Of Columbia Top Causes of Impairments
for Lakes, Ponds and Reservoirs
Description of this table
| # | State Cause Name | Total Acres Impaired |
|---|---|---|
| 1 | FECAL COLIFORM | 238.40 |
| 2 | OIL AND GREASE | 102.70 |
| 3 | OXYGEN, DISSOLVED | 102.70 |
| 4 | SOLIDS (SUSPENDED/BEDLOAD) | 102.70 |
| 5 | SEDIMENTATION/SILTATION | 102.70 |
District Of Columbia Top Probable Sources of Impairments
for Lakes, Ponds and Reservoirs
Description of this table
| # | State Source Name | Total Acres Impaired by Source |
|---|---|---|
| 1 | DISCHARGES FROM MUNICIPAL SEPARATE STORM SEWER SYSTEMS (MS4) | 238.40 |
| 2 | COMBINED SEWER OVERFLOWS | 102.70 |
District Of Columbia Assessed Waters
Individual Use Support for Bays and Estuaries
Description of this table
| State Designated Use | Total Square Miles Assessed | Percent Good | Percent Threatened | Percent Impaired | % Good |
|---|---|---|---|---|---|
| % Threatened |
|||||
| % Impaired |
|||||
| NAVIGATION | 5.93 | 100.00 | .00 | .00 | |
| PRIMARY CONTACT RECREATION | 5.93 | .00 | .00 | 100.00 | |
| PROTECTION AND PROPAGATION OF FISH, SHELLFISH AND WILDLIFE | 5.93 | 81.45 | .00 | 18.55 | |
| PROTECTION OF HUMAN HEALTH RELATED TO CONSUMPTION OF FISH AND SHELLFISH | 5.93 | .00 | .00 | 100.00 | |
| SECONDARY CONTACT RECREATION AND AESTHETIC ENJOYMENT | 5.93 | 63.24 | .00 | 36.76 | |
District Of Columbia Assessed Waters
Water Quality Attainment for Bays and Estuaries
Description of this table
| Attainment Status | Square Miles | Percent of Assessed |
| Good | .00 | .00 |
| Threatened | .00 | .00 |
| Impaired | 5.93 | 100.00 |
| Total Square Miles Assessed | 5.93 | 100.00 |
District Of Columbia Top Causes of Impairments
for Bays and Estuaries
Description of this table
| # | State Cause Name | Total Square Miles Impaired |
|---|---|---|
| 1 | FECAL COLIFORM | 5.93 |
| 2 | OIL AND GREASE | .80 |
| 3 | SOLIDS (SUSPENDED/BEDLOAD) | .80 |
| 4 | SEDIMENTATION/SILTATION | .80 |
| 5 | OXYGEN, DISSOLVED | .80 |
| 6 | BOD, BIOCHEMICAL OXYGEN DEMAND | .30 |
District Of Columbia Top Probable Sources of Impairments
for Bays and Estuaries
Description of this table
| # | State Source Name | Total Square Miles Impaired by Source |
|---|---|---|
| 1 | COMBINED SEWER OVERFLOWS | 5.63 |
| 2 | DISCHARGES FROM MUNICIPAL SEPARATE STORM SEWER SYSTEMS (MS4) | 5.23 |
| 3 | MUNICIPAL POINT SOURCE DISCHARGES | 4.43 |
| 4 | SOURCE UNKNOWN | 1.38 |
| 5 | DREDGING (E.G., FOR NAVIGATION CHANNELS) | .80 |
| 6 | HIGHWAY/ROAD/BRIDGE RUNOFF (NON-CONSTRUCTION RELATED) | .80 |
| 7 | PETROLEUM/NATURAL GAS PRODUCTION ACTIVITIES (PERMITTED) | .80 |
| 8 | MUNICIPAL (URBANIZED HIGH DENSITY AREA) | .40 |
District Of Columbia
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 (Square Miles) | Inland Lake Shoreline (Miles) | |
| ALTERATION IN STREAM-SIDE OR LITTORAL VEGETATIVE COVERS | 5.10 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ALTERATIONS IN WETLAND HABITATS | 6.20 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BENTHIC-MACROINVERTEBRATE BIOASSESSMENTS (STREAMS) | 6.20 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BOD, BIOCHEMICAL OXYGEN DEMAND | .00 | .00 | .30 | .00 | .00 | .00 | .00 | .00 | .00 |
| COMBINATION BENTHIC/FISHES BIOASSESSMENTS (STREAMS) | 34.10 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| COMBINED BIOTA/HABITAT BIOASSESSMENTS (STREAMS) | 13.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| DEBRIS/FLOATABLES/TRASH | 16.50 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| FECAL COLIFORM | 37.60 | 238.40 | 5.93 | .00 | .00 | .00 | .00 | .00 | .00 |
| FISHES BIOASSESSMENTS (STREAMS) | 6.20 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HABITAT ASSESSMENT (STREAMS) | 1.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| OIL AND GREASE | 1.70 | 102.70 | .80 | .00 | .00 | .00 | .00 | .00 | .00 |
| OTHER FLOW REGIME ALTERATIONS | 17.90 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| OXYGEN, DISSOLVED | .00 | 102.70 | .80 | .00 | .00 | .00 | .00 | .00 | .00 |
| PARTICLE DISTRIBUTION (EMBEDDEDNESS) | 28.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PHYSICAL SUBSTRATE HABITAT ALTERATIONS | .70 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SEDIMENTATION/SILTATION | .00 | 102.70 | .80 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOLIDS (SUSPENDED/BEDLOAD) | .00 | 102.70 | .80 | .00 | .00 | .00 | .00 | .00 | .00 |
| TOTAL SUSPENDED SOLIDS (TSS) | 3.70 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
District Of Columbia
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) | Inland Lake Shoreline (Miles) | |
| ABOVE GROUND STORAGE TANK LEAKS (TANK FARMS) | .90 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CERCLA NPL (SUPERFUND) SITES | 1.60 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CHANNELIZATION | 5.60 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| COMBINED SEWER OVERFLOWS | 9.50 | 102.70 | 5.63 | .00 | .00 | .00 | .00 | .00 | .00 |
| DISCHARGES FROM MUNICIPAL SEPARATE STORM SEWER SYSTEMS (MS4) | 23.50 | 238.40 | 5.23 | .00 | .00 | .00 | .00 | .00 | .00 |
| DREDGING (E.G., FOR NAVIGATION CHANNELS) | .00 | .00 | .80 | .00 | .00 | .00 | .00 | .00 | .00 |
| HIGHWAY/ROAD/BRIDGE RUNOFF (NON-CONSTRUCTION RELATED) | .00 | .00 | .80 | .00 | .00 | .00 | .00 | .00 | .00 |
| HYDROSTRUCTURE IMPACTS ON FISH PASSAGE | 15.40 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ILLEGAL DUMPING | 9.90 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ILLEGAL DUMPS OR OTHER INAPPROPRIATE WASTE DISPOSAL | 11.40 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| IMPACTS FROM HYDROSTRUCTURE FLOW REGULATION/MODIFICATION | 13.90 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LANDFILLS | .60 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LOSS OF RIPARIAN HABITAT | 1.20 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MUNICIPAL (URBANIZED HIGH DENSITY AREA) | 5.80 | .00 | .40 | .00 | .00 | .00 | .00 | .00 | .00 |
| MUNICIPAL POINT SOURCE DISCHARGES | .90 | .00 | 4.43 | .00 | .00 | .00 | .00 | .00 | .00 |
| PETROLEUM/NATURAL GAS PRODUCTION ACTIVITIES (PERMITTED) | .00 | .00 | .80 | .00 | .00 | .00 | .00 | .00 | .00 |
| POST-DEVELOPMENT EROSION AND SEDIMENTATION | 8.50 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| RESIDENTIAL DISTRICTS | 30.90 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SITE CLEARANCE (LAND DEVELOPMENT OR REDEVELOPMENT) | 5.30 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOURCE UNKNOWN | 15.10 | .00 | 1.38 | .00 | .00 | .00 | .00 | .00 | .00 |
| WET WEATHER DISCHARGES (NON-POINT SOURCE) | 18.70 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| WET WEATHER DISCHARGES (POINT SOURCE AND COMBINATION OF STORMWATER, SSO OR CSO) | 18.70 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| YARD MAINTENANCE | 15.60 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
