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Assessment Data for the State of Maine Year 2004
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| NOTE: The data provided in this report differs slightly from the information provided in the original Maine State 2004 305(b) report. This is a result of differences between the Maine State assessment database and the summary data provided in Maine's 2004 Integrated Report, which is available at http://www.maine.gov/dep/blwq/docmonitoring/305b/index.htm. |
State of Maine websites: | State 305(b) Water Quality Assessment Report(s) |
| State Water Quality Program |
Search for a Waterbody within Maine
Total Assessed Waters for the State of Maine
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 | 30,936.73 | 1,000,413.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| Estimated Total Water Size in ME | 31,752.00 | 1,000,413.00 | 2,852.00 | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Percent of Waters Assessed | 97.43 | 100.00 | .00 | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
Assessed Waters of Maine by Watershed (8 Digit USGS Cataloging Unit)
Description of this tableMaine 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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| DRINKING WATER SUPPLY AFTER DISINFECTION | 4,399.55 | 100.00 | .00 | .00 | |
| DRINKING WATER SUPPLY AFTER TREATMENT | 959.00 | 99.44 | .00 | .56 | |
| FISH AND OTHER AQUATIC LIFE | 30,729.09 | 98.03 | .00 | 1.97 | |
| FISH CONSUMPTION | 5,569.19 | 88.31 | .00 | 11.69 | |
| FISHING | 5,358.55 | 100.00 | .00 | .00 | |
| HYDROELECTRIC POWER GENERATION | 1,571.20 | 100.00 | .00 | .00 | |
| INDUSTRIAL PROCESS AND COOLING WATER SUPPLY | 1,571.20 | 100.00 | .00 | .00 | |
| NAVIGATION | 5,358.55 | 99.90 | .00 | .10 | |
| PRIMARY CONTACT RECREATION | 5,358.55 | 96.94 | .00 | 3.06 | |
| SECONDARY CONTACT RECREATION | 5,358.55 | 96.94 | .00 | 3.06 | |
| WILDLIFE | 5,358.55 | 100.00 | .00 | .00 | |
Maine Assessed Waters
Water Quality Attainment for Rivers and Streams
Description of this table
| Attainment Status | Miles | Percent of Assessed |
| Good | 29,695.80 | 95.99 |
| Threatened | .00 | .00 |
| Impaired | 1,240.93 | 4.01 |
| Total Miles Assessed | 30,936.73 | 100.00 |
Maine Top Causes of Impairments
for Rivers and Streams
Description of this table
| # | State Cause Name | Total Miles Impaired |
|---|---|---|
| 1 | DIOXIN (INCLUDING 2,3,7,8-TCDD) | 364.92 |
| 2 | OXYGEN, DISSOLVED | 357.14 |
| 3 | DDT | 223.42 |
| 4 | BENTHIC-MACROINVERTEBRATE BIOASSESSMENTS (STREAMS) | 210.96 |
| 5 | NUTRIENTS | 178.73 |
| 6 | BACTERIA, ESCHERICHIA COLI | 151.96 |
| 7 | HABITAT ASSESSMENT (STREAMS) | 77.67 |
| 8 | POLYCHLORINATED BIPHENYLS | 68.16 |
| 9 | BOD, BIOCHEMICAL OXYGEN DEMAND | 44.87 |
| 10 | FISHES BIOASSESSMENTS (STREAMS) | 42.35 |
Maine Top Probable Sources of Impairments
for Rivers and Streams
Description of this table
| # | State Source Name | Total Miles Impaired by Source |
|---|---|---|
| 1 | AGRICULTURE | 335.80 |
| 2 | MUNICIPAL POINT SOURCE DISCHARGES | 128.42 |
| 3 | NON-POINT SOURCE | 103.17 |
| 4 | INDUSTRIAL POINT SOURCE DISCHARGE | 96.50 |
| 5 | DAM OR IMPOUNDMENT | 76.78 |
| 6 | POST-DEVELOPMENT EROSION AND SEDIMENTATION | 58.06 |
| 7 | UNSPECIFIED URBAN STORMWATER | 26.39 |
| 8 | FLOW ALTERATIONS FROM WATER DIVERSIONS | 25.02 |
| 9 | HABITAT MODIFICATION - OTHER THAN HYDROMODIFICATION | 22.33 |
| 10 | WET WEATHER DISCHARGES (POINT SOURCE AND COMBINATION OF STORMWATER, SSO OR CSO) | 20.07 |
Maine 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 AFTER DISINFECTION | 1,000,413.00 | 100.00 | .00 | .00 | |
| FISH AND OTHER AQUATIC LIFE | 973,625.00 | 92.41 | .00 | 7.59 | |
| FISH CONSUMPTION | 1,000,413.00 | 39.12 | .00 | 60.88 | |
| FISHING | 1,000,413.00 | 100.00 | .00 | .00 | |
| HYDROELECTRIC POWER GENERATION | 1,000,413.00 | 100.00 | .00 | .00 | |
| INDUSTRIAL PROCESS AND COOLING WATER SUPPLY | 1,000,413.00 | 100.00 | .00 | .00 | |
| NAVIGATION | 1,000,413.00 | 100.00 | .00 | .00 | |
| PRIMARY CONTACT RECREATION | 1,000,413.00 | 96.81 | .00 | 3.19 | |
| SECONDARY CONTACT RECREATION | 1,000,413.00 | 100.00 | .00 | .00 | |
| WILDLIFE | 379,597.00 | 100.00 | .00 | .00 | |
Maine Assessed Waters
Water Quality Attainment for Lakes, Ponds and Reservoirs
Description of this table
| Attainment Status | Acres | Percent of Assessed |
| Good | 285,573.00 | 28.55 |
| Threatened | .00 | .00 |
| Impaired | 714,840.00 | 71.45 |
| Total Acres Assessed | 1,000,413.00 | 100.00 |
Maine Top Causes of Impairments
for Lakes, Ponds and Reservoirs
Description of this table
| # | State Cause Name | Total Acres Impaired |
|---|---|---|
| 1 | HABITAT ASSESSMENT (LAKES) | 65,832.00 |
| 2 | NUTRIENTS | 39,989.00 |
| 3 | SECCHI DISK TRANSPARENCY | 31,908.00 |
| 4 | OXYGEN, DISSOLVED | 8,081.00 |
| 5 | TURBIDITY | 7,865.00 |
Maine Top Probable Sources of Impairments
for Lakes, Ponds and Reservoirs
Description of this table
| # | State Source Name | Total Acres Impaired by Source |
|---|---|---|
| 1 | IMPACTS FROM HYDROSTRUCTURE FLOW REGULATION/MODIFICATION | 65,832.00 |
| 2 | RURAL (RESIDENTIAL AREAS) | 37,571.00 |
| 3 | NON-IRRIGATED CROP PRODUCTION | 12,058.00 |
| 4 | INTERNAL NUTRIENT RECYCLING | 11,490.00 |
| 5 | LIVESTOCK (GRAZING OR FEEDING OPERATIONS) | 10,929.00 |
| 6 | NATURAL SOURCES | 10,195.00 |
| 7 | CROP PRODUCTION (CROP LAND OR DRY LAND) | 7,784.00 |
| 8 | MUNICIPAL POINT SOURCE DISCHARGES | 4,288.00 |
| 9 | RESIDENTIAL DISTRICTS | 2,723.00 |
| 10 | INDUSTRIAL LAND TREATMENT | 1,820.00 |
Maine
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) | |
| AMMONIA (UN-IONIZED) | 26.48 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| ARSENIC | 20.48 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BACTERIA, ESCHERICHIA COLI | 151.96 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BENTHIC-MACROINVERTEBRATE BIOASSESSMENTS (STREAMS) | 210.96 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BENZENE | 4.51 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| BOD, BIOCHEMICAL OXYGEN DEMAND | 44.87 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| DDT | 223.42 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| DIOXIN (INCLUDING 2,3,7,8-TCDD) | 364.92 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| FISHES BIOASSESSMENTS (STREAMS) | 42.35 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HABITAT ASSESSMENT (LAKES) | .00 | 65,832.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HABITAT ASSESSMENT (STREAMS) | 77.67 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| IMPAIRMENT UNKNOWN | 9.87 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| METALS | 29.85 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NUTRIENTS | 178.73 | 39,989.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| OTHER FLOW REGIME ALTERATIONS | 40.78 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| OXYGEN, DISSOLVED | 357.14 | 8,081.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| PH | 1.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| POLYCHLORINATED BIPHENYLS | 68.16 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SECCHI DISK TRANSPARENCY | .00 | 31,908.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TOTAL SUSPENDED SOLIDS (TSS) | 6.90 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| TURBIDITY | 8.19 | 7,865.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
Maine
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) | |
| AGRICULTURE | 335.80 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| AQUACULTURE (PERMITTED) | 9.06 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| CROP PRODUCTION (CROP LAND OR DRY LAND) | .00 | 7,784.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| DAM OR IMPOUNDMENT | 76.78 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| FLOW ALTERATIONS FROM WATER DIVERSIONS | 25.02 | 30.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| HABITAT MODIFICATION - OTHER THAN HYDROMODIFICATION | 22.33 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| IMPACTS FROM ABANDONED MINE LANDS (INACTIVE) | 3.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| IMPACTS FROM HYDROSTRUCTURE FLOW REGULATION/MODIFICATION | 2.00 | 65,832.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| INAPPROPRIATE WASTE DISPOSAL | 10.68 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| INDUSTRIAL LAND TREATMENT | .00 | 1,820.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| INDUSTRIAL POINT SOURCE DISCHARGE | 96.50 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| INTERNAL NUTRIENT RECYCLING | .00 | 11,490.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LANDFILLS | .00 | 29.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| LIVESTOCK (GRAZING OR FEEDING OPERATIONS) | .00 | 10,929.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MINE TAILINGS | 1.23 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| MUNICIPAL POINT SOURCE DISCHARGES | 128.42 | 4,288.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NATURAL SOURCES | .00 | 10,195.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NON-IRRIGATED CROP PRODUCTION | .00 | 12,058.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| NON-POINT SOURCE | 103.17 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| POST-DEVELOPMENT EROSION AND SEDIMENTATION | 58.06 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| RCRA HAZARDOUS WASTE SITES | 14.38 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| RESIDENTIAL DISTRICTS | .00 | 2,723.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| RURAL (RESIDENTIAL AREAS) | .00 | 37,571.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOURCE UNKNOWN | .78 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| SOURCES OUTSIDE STATE JURISTICTION OR BORDERS | 8.16 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UNSPECIFIED URBAN STORMWATER | 26.39 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPSTREAM SOURCE | 15.78 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| UPSTREAM/DOWSTREAM SOURCE | .00 | 83.00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| WET WEATHER DISCHARGES (POINT SOURCE AND COMBINATION OF STORMWATER, SSO OR CSO) | 20.07 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
