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Region 1 Summary of State Information

Map of the Region 1 Connecticut Maine Massachusetts New Hampshire Rhode Island Vermont New Jersey New York Puerto Rico U.S. Virgin Islands Delaware District of Columbia Maryland Pennsylvania Virginia West Virginia Alabama Florida Georgia Kentucky Mississippi North Carolina South Carolina Tennessee Illinois Indiana Michigan Minnesota Ohio Wisconsin Arkansas Louisiana New Mexico Oklahoma Texas Iowa Kansas Missouri Nebraska Colorado Montana North Dakota South Dakota Utah Wyoming Arizona California Hawaii Nevada Alaska Idaho Oregon Washington

Depicted below are regional summary tables and charts for available water quality data reported by the States to EPA under Section 305(b) and 303(d) of the Clean Water Act.

This report displays the most current available reporting year data.
Check the Status of Available Data for more information.


Features


Assessed Waters of Region 1

Incomplete state reported information may lead to discrepancies and/or missing information in these reports.

Description of this table
  Size of Water
Rivers and
Streams (Miles)		 Lakes, Reservoirs,
and Ponds (Acres)		 Bays and
Estuaries
(Square Miles)		 Coastal
Shoreline
(Miles)		 Wetlands
(Acres)
   Good Waters 37,589 972,151 318 79 260
   Threatened Waters
   Impaired Waters 21,795 565,703 955   33
Total Assessed Waters 59,383 1,537,854 1,274 79 293
Total Waters 86,384 1,643,751 3,966 79 Unavailable
Percent of Waters Assessed 68.7 93.6 32.1 100.0 Unavailable

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Summary of Water Quality Assessments for Each Waterbody Type


Region 1
Water Quality Attainment in Assessed Rivers and Streams

Description of this table
Assessed Status Miles
Assessed 59,383
Unassessed 27,001
Total Miles 86,384







arrow pointing right 		Description of this table
Attainment Status Miles
Good 37,589
Threatened 0
Impaired 21,795
Total Miles Assessed 59,383

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Region 1
Designated Use Support in Assessed Rivers and Streams*

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
Designated Use Group Miles Assessed Percent Good Percent Threatened Percent Impaired % Good
% Threatened
% Impaired
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, And Wildlife Protection And Propagation 42,270 83.8 .0 16.2 color.gifcolor.gif
Aquatic Life Harvesting Aquatic Life Harvesting 30,971 40.7 .0 59.3 color.gifcolor.gif
Public Water Supply Public Water Supply 22,347 100.0 .0 .0 color.gifcolor.gif
Recreation Recreation 15,471 73.7 .0 26.3 color.gifcolor.gif
Hydropower Generation Other 5,438 99.9 .0 .1 color.gifcolor.gif
Aesthetic Value Aesthetic Value 5,006 86.9 .0 13.1 color.gifcolor.gif
Industrial Industrial 1,651 100.0 .0 .0 color.gif

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Region 1
Causes of Impairment in Assessed Rivers and Streams

Description of this table
Cause of Impairment Group Miles
Threatened or
Impaired
Mercury color.gif 17,230
Pathogens color.gif 3,918
pH/Acidity/Caustic Conditions color.gif 3,517
Organic Enrichment/Oxygen Depletion color.gif 1,558
Cause Unknown - Impaired Biota color.gif 1,312
Polychlorinated Biphenyls (PCBs) color.gif 945
Metals (other than Mercury) color.gif 833
Nutrients color.gif 782
Flow Alteration(s) color.gif 526
Cause Unknown color.gif 448
Nuisance Exotic Species color.gif 407
Dioxins color.gif 406
Algal Growth color.gif 329
Habitat Alterations color.gif 326
Pesticides color.gif 319
Turbidity color.gif 300
Other Cause color.gif 235
Sediment color.gif 175
Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 147
Taste, Color and Odor color.gif 139
Trash color.gif 128
Total Toxics color.gif 105
Noxious Aquatic Plants color.gif 99
Temperature color.gif 90
Ammonia color.gif 42
Toxic Organics color.gif 23
Oil and Grease color.gif 17
Chlorine color.gif 4
Cause Unknown - Fish Kills color.gif 3
Nuisance Native Species color.gif 2
Toxic Inorganics color.gif 1
Radiation color.gif 1

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Region 1
Probable Sources of Impairments in Assessed Rivers and Streams

Description of this table
Probable Source Group Miles
Threatened or
Impaired
Atmospheric Deposition color.gif 16,976
Unknown color.gif 6,618
Municipal Discharges/Sewage color.gif 1,481
Urban-Related Runoff/Stormwater color.gif 1,327
Hydromodification color.gif 771
Agriculture color.gif 701
Other color.gif 496
Natural/Wildlife color.gif 438
Spills/Dumping color.gif 414
Unspecified Nonpoint Source color.gif 414
Industrial color.gif 410
Legacy/Historical Pollutants color.gif 337
Land Application/Waste Sites/Tanks color.gif 195
Habitat Alterations (Not Directly Related To Hydromodification) color.gif 106
Construction color.gif 52
Resource Extraction color.gif 44
Recreation And Tourism (Non-Boating) color.gif 39
Groundwater Loadings/Withdrawals color.gif 24
Aquaculture color.gif 13
Silviculture (Forestry) color.gif 1

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Region 1
Water Quality Attainment in Assessed Lakes, Reservoirs, and Ponds

Description of this table
Assessed Status Acres
Assessed 1,537,854
Unassessed 105,897
Total Acres 1,643,751







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Attainment Status Acres
Good 972,151
Threatened 0
Impaired 565,703
Total Acres Assessed 1,537,854

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Region 1
Designated Use Support in Assessed Lakes, Reservoirs, and Ponds*

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
Designated Use Group Acres Assessed Percent Good Percent Threatened Percent Impaired % Good
% Threatened
% Impaired
Aquatic Life Harvesting Aquatic Life Harvesting 1,490,454 71.4 .0 28.6 color.gifcolor.gif
Recreation Recreation 1,444,198 84.7 .0 15.3 color.gifcolor.gif
Public Water Supply Public Water Supply 1,345,212 98.8 .0 1.2 color.gifcolor.gif
Hydropower Generation Other 992,085 100.0 .0 .0 color.gif
Industrial Industrial 988,867 100.0 .0 .0 color.gif
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, And Wildlife Protection And Propagation 867,403 60.0 .0 40.0 color.gifcolor.gif
Aesthetic Value Aesthetic Value 280,094 41.5 .0 58.5 color.gifcolor.gif

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Region 1
Causes of Impairment in Assessed Lakes, Reservoirs, and Ponds

Description of this table
Cause of Impairment Group Acres
Threatened or
Impaired
Mercury color.gif 421,368
Nutrients color.gif 201,571
Polychlorinated Biphenyls (PCBs) color.gif 167,771
Nuisance Exotic Species color.gif 160,749
pH/Acidity/Caustic Conditions color.gif 143,328
Turbidity color.gif 54,975
Organic Enrichment/Oxygen Depletion color.gif 52,084
Cause Unknown - Impaired Biota color.gif 49,046
Algal Growth color.gif 24,873
Biotoxins color.gif 17,258
Pathogens color.gif 7,903
Flow Alteration(s) color.gif 7,538
Noxious Aquatic Plants color.gif 4,709
Metals (other than Mercury) color.gif 2,652
Pesticides color.gif 2,324
Taste, Color and Odor color.gif 1,686
Trash color.gif 1,611
Dioxins color.gif 993
Toxic Organics color.gif 762
Sediment color.gif 555
Habitat Alterations color.gif 324
Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 275
Total Toxics color.gif 96
Toxic Inorganics color.gif 93
Radiation color.gif 48
Ammonia color.gif 23

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Region 1
Probable Sources of Impairments in Assessed Lakes, Reservoirs, and Ponds

Description of this table
Probable Source Group Acres
Threatened or
Impaired
Atmospheric Deposition color.gif 417,612
Spills/Dumping color.gif 163,988
Unknown color.gif 143,325
Unspecified Nonpoint Source color.gif 135,835
Natural/Wildlife color.gif 111,923
Other color.gif 92,513
Municipal Discharges/Sewage color.gif 84,353
Hydromodification color.gif 74,359
Agriculture color.gif 59,678
Urban-Related Runoff/Stormwater color.gif 31,999
Commercial Harbor And Port Activities color.gif 23,046
Recreational Boating And Marinas color.gif 17,942
Industrial color.gif 9,615
Construction color.gif 4,206
Legacy/Historical Pollutants color.gif 3,957
Land Application/Waste Sites/Tanks color.gif 161
Aquaculture color.gif 130
Recreation And Tourism (Non-Boating) color.gif 111
Groundwater Loadings/Withdrawals color.gif 96
Habitat Alterations (Not Directly Related To Hydromodification) color.gif 96
Resource Extraction color.gif 45

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Region 1
Water Quality Attainment in Assessed Bays and Estuaries

Description of this table
Assessed Status Square Miles
Assessed 1,274
Unassessed 2,692
Total Square Miles 3,966







arrow pointing right 		Description of this table
Attainment Status Square Miles
Good 318
Threatened 0
Impaired 955
Total Square Miles Assessed 1,274

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Region 1
Designated Use Support in Assessed Bays and Estuaries*

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
Designated Use Group Square Miles Assessed Percent Good Percent Threatened Percent Impaired % Good
% Threatened
% Impaired
Aquatic Life Harvesting Aquatic Life Harvesting 1,264 42.3 .0 57.7 color.gifcolor.gif
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, And Wildlife Protection And Propagation 915 51.4 .0 48.6 color.gifcolor.gif
Recreation Recreation 450 86.7 .0 13.3 color.gifcolor.gif
Aesthetic Value Aesthetic Value 114 87.2 .0 12.8 color.gifcolor.gif
Public Water Supply Public Water Supply 99 100.0 .0 .0 color.gif

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Region 1
Causes of Impairment in Assessed Bays and Estuaries

Description of this table
Cause of Impairment Group Square Miles
Threatened or
Impaired
Pathogens color.gif 656
Nutrients color.gif 390
Organic Enrichment/Oxygen Depletion color.gif 375
Polychlorinated Biphenyls (PCBs) color.gif 180
Dioxins color.gif 101
Mercury color.gif 101
Cause Unknown - Impaired Biota color.gif 74
Other Cause color.gif 45
Turbidity color.gif 18
Temperature color.gif 14
Oil and Grease color.gif 12
Cause Unknown color.gif 9
pH/Acidity/Caustic Conditions color.gif 8
Algal Growth color.gif 7
Metals (other than Mercury) color.gif 5
Total Toxics color.gif 3
Trash color.gif 3
Taste, Color and Odor color.gif 3
Toxic Organics color.gif 3
Pesticides color.gif 2
Ammonia color.gif 1
Nuisance Exotic Species color.gif 1
Habitat Alterations color.gif 0
Flow Alteration(s) color.gif 0

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Region 1
Probable Sources of Impairments in Assessed Bays and Estuaries

Description of this table
Probable Source Group Square Miles
Threatened or
Impaired
Urban-Related Runoff/Stormwater color.gif 660
Municipal Discharges/Sewage color.gif 632
Unspecified Nonpoint Source color.gif 533
Atmospheric Deposition color.gif 390
Unknown color.gif 360
Industrial color.gif 303
Recreational Boating And Marinas color.gif 257
Natural/Wildlife color.gif 235
Legacy/Historical Pollutants color.gif 32
Land Application/Waste Sites/Tanks color.gif 10
Other color.gif 9
Agriculture color.gif 6
Hydromodification color.gif 5
Land Application/Waste Sites color.gif 1
Resource Extraction color.gif 1
Spills/Dumping color.gif 0

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Region 1
Water Quality Attainment in Assessed Coastal Shoreline

Description of this table
Assessed Status Miles
Assessed 79
Unassessed -0
Total Miles 79







arrow pointing right 		Description of this table
Attainment Status Miles
Good 79
Threatened 0
Impaired 0
Total Miles Assessed 79

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Region 1
Designated Use Support in Assessed Coastal Shoreline*

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
Designated Use Group Miles Assessed Percent Good Percent Threatened Percent Impaired % Good
% Threatened
% Impaired
Recreation Recreation 79 100.0 .0 .0 color.gif
Aquatic Life Harvesting Aquatic Life Harvesting 79 100.0 .0 .0 color.gif

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Region 1
Causes of Impairment in Assessed Coastal Shoreline

No causes of impairment reported.

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Region 1
Probable Sources of Impairments in Assessed Coastal Shoreline

No probable sources of impairments reported.

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Region 1
Water Quality Attainment in Assessed Wetlands

Description of this table
Pie chart not displayed because total size for Wetlands is unavailable.
Assessed Status Acres
Assessed 293
Unassessed Unavailable
Total Acres Unavailable







arrow pointing right 		Description of this table
Attainment Status Acres
Good 260
Threatened 0
Impaired 33
Total Acres Assessed 293

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Region 1
Designated Use Support in Assessed Wetlands*

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table
Designated Use Group Acres Assessed Percent Good Percent Threatened Percent Impaired % Good
% Threatened
% Impaired
Fish, Shellfish, and Wildlife Protection and Propagation Fish, Shellfish, And Wildlife Protection And Propagation 293 88.7 .0 11.3 color.gifcolor.gif
Public Water Supply Public Water Supply 8 100.0 .0 .0 color.gif
Recreation Recreation 8 .0 .0 100.0 color.gif
Industrial Industrial 8 100.0 .0 .0 color.gif
Aquatic Life Harvesting Aquatic Life Harvesting 8 100.0 .0 .0 color.gif
Hydropower Generation Other 8 100.0 .0 .0 color.gif

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Region 1
Causes of Impairment in Assessed Wetlands

Description of this table
Cause of Impairment Group Acres
Threatened or
Impaired
Cause Unknown - Impaired Biota color.gif 33
Pathogens color.gif 8

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Region 1
Probable Sources of Impairments in Assessed Wetlands

No probable sources of impairments reported.

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Region 1 Causes of Impairment


Description of this table
NOTE: Click on a cause of impairment (e.g. algal growth) to see the specific state-reported causes that are grouped to make up this category. See also Pollution categories summary document (PDF) (20 pp, 557K, About PDF) for brief, non-technical descriptions of general cause categories.
Cause of Impairment Group Size of Assessed Waters with Listed Causes of Impairment
Rivers and
Streams (Miles)		 Lakes, Reservoirs,
and Ponds (Acres)		 Bays and
Estuaries
(Square Miles)		 Wetlands
(Acres)
Algal Growth 329 24,873 7  
Ammonia 42 23 1  
Biotoxins   17,258    
Cause Unknown 448   9  
Cause Unknown - Fish Kills 3      
Cause Unknown - Impaired Biota 1,312 49,046 74 33
Chlorine 4      
Dioxins 406 993 101  
Flow Alteration(s) 526 7,538 0  
Habitat Alterations 326 324 0  
Mercury 17,230 421,368 101  
Metals (other than Mercury) 833 2,652 5  
Noxious Aquatic Plants 99 4,709    
Nuisance Exotic Species 407 160,749 1  
Nuisance Native Species 2      
Nutrients 782 201,571 390  
Oil and Grease 17   12  
Organic Enrichment/Oxygen Depletion 1,558 52,084 375  
Other Cause 235   45  
Pathogens 3,918 7,903 656 8
Pesticides 319 2,324 2  
pH/Acidity/Caustic Conditions 3,517 143,328 8  
Polychlorinated Biphenyls (PCBs) 945 167,771 180  
Radiation 1 48    
Salinity/Total Dissolved Solids/Chlorides/Sulfates 147 275    
Sediment 175 555    
Taste, Color and Odor 139 1,686 3  
Temperature 90   14  
Total Toxics 105 96 3  
Toxic Inorganics 1 93    
Toxic Organics 23 762 3  
Trash 128 1,611 3  
Turbidity 300 54,975 18  

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Region 1 Probable Sources Contributing to Impairments

Description of this table
NOTE: Click on a source of impairment (e.g. agriculture) to see the specific state-reported sources that are grouped to make up this category.
Probable Source Group Size of Assessed Waters with Probable Sources of Impairments
Rivers and
Streams (Miles)		 Lakes, Reservoirs,
and Ponds (Acres)		 Bays and
Estuaries
(Square Miles)
Agriculture 701 59,678 6
Aquaculture 13 130  
Atmospheric Deposition 16,976 417,612 390
Commercial Harbor And Port Activities   23,046  
Construction 52 4,206  
Groundwater Loadings/Withdrawals 24 96  
Habitat Alterations (Not Directly Related To Hydromodification) 106 96  
Hydromodification 771 74,359 5
Industrial 410 9,615 303
Land Application/Waste Sites     1
Land Application/Waste Sites/Tanks 195 161 10
Legacy/Historical Pollutants 337 3,957 32
Municipal Discharges/Sewage 1,481 84,353 632
Natural/Wildlife 438 111,923 235
Other 496 92,513 9
Recreation And Tourism (Non-Boating) 39 111  
Recreational Boating And Marinas   17,942 257
Resource Extraction 44 45 1
Silviculture (Forestry) 1    
Spills/Dumping 414 163,988 0
Unknown 6,618 143,325 360
Unspecified Nonpoint Source 414 135,835 533
Urban-Related Runoff/Stormwater 1,327 31,999 660

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Region 1 Previously Impaired Waters Now Attaining All Uses

Description of this table
NOTE: Click on the underlined "Number of Waters Attaining" value for a detailed list of those waters now attaining all uses.
Cycle Attaining Number of Waters Attaining Number of Causes of
Impairment Addressed
2004 color.gif 15 20
2006 color.gif 8 13
2007 color.gif 4 4
2008 color.gif 5 5
2011 color.gif 24 28
2012 color.gif 1 1

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Region 1
Impaired Waters Listed By State

Description of this table
State Name Number of Waters on 303(d) List
Connecticut color.gif 425
Maine color.gif 114
Massachusetts color.gif 710
New Hampshire color.gif 1,449
Rhode Island color.gif 120
Vermont color.gif 126

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Region 1 Cumulative TMDLs by Pollutant

This chart includes TMDLs since October 1, 1995.

Description of this table
NOTE: Click on the underlined "Pollutant Group" value to see a detailed list of pollutants. Click on the underlined "Number of TMDLs" value to see a listing of those TMDLs for the pollutant Group.
Pollutant Group Number of TMDLs Number of Causes of
Impairment Addressed
Mercury color.gif 5,283 5,283
Pathogens color.gif 1,388 1,393
pH/Acidity/Caustic Conditions color.gif 375 378
Nutrients color.gif 312 461
Other Cause color.gif 89 121
Metals (other than Mercury) color.gif 54 54
Organic Enrichment/Oxygen Depletion color.gif 12 17
Ammonia color.gif 10 11
Algal Growth color.gif 5 5
Sediment color.gif 5 7
Turbidity color.gif 5 7
Chlorine color.gif 4 4
Salinity/Total Dissolved Solids/Chlorides/Sulfates color.gif 4 4
Toxic Organics color.gif 4 4
Pesticides color.gif 2 2
Total Toxics color.gif 1 1

Total: 7,553 TMDLs; 7,752 Causes of Impairment Addressed

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Region 1 Approved TMDLs By State

This chart includes TMDLs since October 1, 1995.

Description of this table
State Name Number of TMDLs
Connecticut color.gif 325
Maine color.gif 337
Massachusetts color.gif 576
New Hampshire color.gif 6,006
Rhode Island color.gif 190
Vermont color.gif 119

Total: 7,553 TMDLs

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Region 1 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.
Fiscal Year Number of TMDLs Number of Causes of
Impairment Addressed
1999 color.gif 3 5
2000 color.gif 28 31
2001 color.gif 29 29
2002 color.gif 122 139
2003 color.gif 86 89
2004 color.gif 92 95
2005 color.gif 73 81
2006 color.gif 81 91
2007 color.gif 226 238
2008 color.gif 5,465 5,474
2009 color.gif 340 340
2010 color.gif 439 457
2011 color.gif 253 331
2012 color.gif 260 296
2013 color.gif 56 56

Total: 7,553 TMDLs; 7,752 Causes of Impairment Addressed

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Status of Available Data Used in This Report

Description of this table
State Name Assessed Waters Report Year Impaired Waters Report Year
Connecticut 2010 2010
Maine 2010 2010
Massachusetts 2010 2010
New Hampshire 2010 2010
Rhode Island 2012 2012
Vermont 2008 2010


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