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Total Maximum Daily Loads by Watershed

Draft and final TMDL reports for Massachusetts and the New England region.
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Statewide Pathogen TMDL

Open PDF file, 2.15 MB,  Final Massachusetts Statewide TMDL for Pathogen-Impaired Waterbodies (English, PDF 2.15 MB)
Open PDF file, 217.4 KB,  Statewide Pathogen TMDL - Fact Sheet (English, PDF 217.4 KB)
Open PDF file, 2.63 MB,  Statewide Pathogen Information Session Presentation (English, PDF 2.63 MB)
Open PDF file, 2.73 MB,  Appendix A: Hoosic River Basin (English, PDF 2.73 MB)
Open PDF file, 3.89 MB,  Appendix B: Housatonic River Basin (English, PDF 3.89 MB)
Open PDF file, 7.07 MB,  Appendix C: Westfield River Basin (English, PDF 7.07 MB)
Open PDF file, 5.68 MB,  Appendix D: Deerfield River Basin (English, PDF 5.68 MB)
Open PDF file, 13.92 MB,  Appendix E: Connecticut River Basin (English, PDF 13.92 MB)
Open PDF file, 992.48 KB,  Appendix F: Millers River Basin (English, PDF 992.48 KB)
Open PDF file, 14 MB,  Appendix G: Chicopee River Basin (English, PDF 14 MB)
Open PDF file, 5.53 MB,  Appendix H: Quinebaug River Basin (English, PDF 5.53 MB)
Open PDF file, 2.78 MB,  Appendix I: French River Basin (English, PDF 2.78 MB)
Open PDF file, 17.12 MB,  Appendix J: Blackstone River Basin (English, PDF 17.12 MB)
Open PDF file, 5.84 MB,  Appendix K: Ten Mile River Basin (English, PDF 5.84 MB)
Open PDF file, 2.43 MB,  Appendix L: Narragansett Bay (Shore) Coastal Drainage Area (English, PDF 2.43 MB)
Open PDF file, 1.98 MB,  Appendix M: Mount Hope Bay (Shore) Coastal Drainage Area (English, PDF 1.98 MB)
Open PDF file, 1.79 MB,  Appendix N: Taunton River Basin (English, PDF 1.79 MB)
Open PDF file, 3.19 MB,  Appendix O: Mystic River Basin and Coastal Drainage Area (English, PDF 3.19 MB)
Open PDF file, 5.84 MB,  Appendix P: Charles River Basin and Coastal Drainage Area (English, PDF 5.84 MB)
Open PDF file, 2.11 MB,  Appendix Q: Neponset River Basin and Coastal Drainage Area (English, PDF 2.11 MB)
Open PDF file, 5.59 MB,  Appendix R: Weymouth & Weir River Basin and Coastal Drainage Area (English, PDF 5.59 MB)
Open PDF file, 18.37 MB,  Appendix S: Nashua River Basin (English, PDF 18.37 MB)
Open PDF file, 18.31 MB,  Appendix T: Concord (SuAsCo) River Basin (English, PDF 18.31 MB)
Open PDF file, 1.27 MB,  Appendix U: Shawsheen River Basin (English, PDF 1.27 MB)
Open PDF file, 27.37 MB,  Appendix V: Merrimack River Basin and Coastal Drainage Area (English, PDF 27.37 MB)
Open PDF file, 6.96 MB,  Appendix W: Ipswich River Basin and Coastal Drainage Area (English, PDF 6.96 MB)
Open PDF file, 3.4 MB,  Appendix X: North Shore Coastal Drainage Area (English, PDF 3.4 MB)
Open PDF file, 3.43 MB,  Appendix Y: South Shore Coastal Drainage Area (English, PDF 3.43 MB)
Open PDF file, 8.49 MB,  Appendix Z: Buzzards Bay Coastal Drainage Area (English, PDF 8.49 MB)
Open PDF file, 6.89 MB,  Appendix AA: Cape Cod Coastal Drainage Area (English, PDF 6.89 MB)
Open PDF file, 1.48 MB,  Appendix AB: Islands Coastal Drainage Area (English, PDF 1.48 MB)
Open PDF file, 3.69 MB,  Appendix AC: Response to Comments (English, PDF 3.69 MB)

Northeast Regional Mercury TMDL

Open PDF file, 499.07 KB,  Final Northeast Regional Mercury TMDL (English, PDF 499.07 KB)
Open PDF file, 183.96 KB,  Northeast Regional Mercury Total Maximum Daily Load: Final Addendum for Massachusetts (English, PDF 183.96 KB)
New England Interstate Water Pollution Control Commission: Mercury TMDL 

Blackstone River Watershed

Open PDF file, 677.92 KB,  Final TMDLs of Phosphorus for Indian Lake (English, PDF 677.92 KB)
Open PDF file, 666.75 KB,  Final TMDLs of Phosphorus for Lake Quinsigamond and Flint Pond (English, PDF 666.75 KB)
Open PDF file, 691.51 KB,  Final TMDLs of Phosphorus for Leesville Pond (English, PDF 691.51 KB)
Open PDF file, 2.12 MB,  Final TMDL for Northern Blackstone Lakes (English, PDF 2.12 MB)
Open PDF file, 853.16 KB,  Final TMDLs of Phosphorus for Salisbury Pond (English, PDF 853.16 KB)

Boston Harbor Watershed

Open PDF file, 4.78 MB,  Final Pathogen TMDL Report for the Boston Harbor, Weymouth-Weir, and Mystic Watersheds (English, PDF 4.78 MB)
Open PDF file, 6.02 MB,  Mystic River Watershed Alternative TMDL Development for Phosphorus Management - Final Report (English, PDF 6.02 MB)
Open PDF file, 1.69 MB,  Final TMDLs of Bacteria for Neponset River Basin (English, PDF 1.69 MB)
Open PDF file, 824.12 KB,  Final Neponset Bacteria TMDL Addendum (English, PDF 824.12 KB)

Buzzards Bay Watershed

Open PDF file, 5.52 MB,  Final Nitrogen TMDL Report for Megansett-Squeteague Harbor Estuarine System, June 2020 (English, PDF 5.52 MB)
Open PDF file, 1.63 MB,  Final Fiddlers Cove and Rands Harbor Embayment Systems Total Maximum Daily Loads for Total Nitrogen (English, PDF 1.63 MB)
Open PDF file, 1.11 MB,  Final Quissett Harbor Embayment System Total Maximum Daily Loads for Total Nitrogen (English, PDF 1.11 MB)
Open PDF file, 1.28 MB,  Final Wild Harbor Embayment System Total Maximum Daily Loads for Total Nitrogen (English, PDF 1.28 MB)
Open PDF file, 2.44 MB,  Final TMDL of Total Phosphorus for White Island Pond (English, PDF 2.44 MB)
Open PDF file, 35.47 KB,  White Island Pond Memorandum of Agreement (English, PDF 35.47 KB)
Open PDF file, 2.85 MB,  Final Pathogen TMDL for the Buzzards Bay Watershed (English, PDF 2.85 MB)
Open PDF file, 3.47 MB,  Final Pathogen TMDL for the Buzzards Bay Watershed - Appendices (English, PDF 3.47 MB)
Open PDF file, 1.81 MB,  Final Nitrogen TMDL for Westport River (English, PDF 1.81 MB)
Open PDF file, 10.19 MB,  Final Nitrogen TMDL for Slocums & Little Rivers Embayment System (English, PDF 10.19 MB)
Open PDF file, 3.26 MB,  Final Total Nitrogen TMDL for New Bedford Inner Harbor (English, PDF 3.26 MB)
Open PDF file, 307.51 KB,  New Bedford Inner Harbor TMDL for Total Nitrogen - Fact Sheet (English, PDF 307.51 KB)
Open PDF file, 3.1 MB,  New Bedford Inner Harbor TMDL for Total Nitrogen - Information Session Presentation (English, PDF 3.1 MB)
Open PDF file, 2.75 MB,  Final Total Nitrogen TMDL for Wareham River Estuary System (English, PDF 2.75 MB)
Open PDF file, 725.92 KB,  Wareham River TMDL for Total Nitrogen - Fact Sheet (English, PDF 725.92 KB)
Open PDF file, 6.05 MB,  Wareham River TMDL for Total Nitrogen - Information Session Presentation (English, PDF 6.05 MB)

Cape Cod Watershed

Open PDF file, 3.06 MB,  Final Total Nitrogen TMDL for Wellfleet Harbor (English, PDF 3.06 MB)
Open PDF file, 1.77 MB,  Final Total-Nitrogen TMDL for the Bass River Estuarine System (English, PDF 1.77 MB)
Open PDF file, 2.02 MB,  Final Total-Nitrogen TMDL for the Parkers River Embayment System (English, PDF 2.02 MB)
Open PDF file, 1.74 MB,  Final Total-Nitrogen TMDL for the Swan Pond River Estuarine System (English, PDF 1.74 MB)
Open PDF file, 2.01 MB,  Final Pathogen TMDL Report for the Cape Cod Watershed (English, PDF 2.01 MB)
Open PDF file, 669.9 KB,  Addendum to Final Cape Cod Pathogen TMDL Report, March 2012 (English, PDF 669.9 KB)
Open PDF file, 540.29 KB,  Final Nutrient TMDL for Centerville River/East Bay (English, PDF 540.29 KB)
Open PDF file, 2.8 MB,  Final TMDL for Lewis Bay for Total Nitrogen (English, PDF 2.8 MB)
Open PDF file, 729.48 KB,  Final Nitrogen TMDL for Little Pond (English, PDF 729.48 KB)
Open PDF file, 500.21 KB,  Final Nitrogen TMDL for Oyster Pond (English, PDF 500.21 KB)
Open PDF file, 629.27 KB,  Final Nitrogen TMDL for Phinneys Harbor (English, PDF 629.27 KB)
Open PDF file, 1.66 MB,  Final Nitrogen TMDL for Pleasant Bay System (English, PDF 1.66 MB)
Open PDF file, 496.09 KB,  Final Nitrogen TMDL for West Falmouth Harbor (English, PDF 496.09 KB)
Open PDF file, 357.89 KB,  Final Nitrogen TMDL Report for Five Sub-Embayments of Popponesset Bay (English, PDF 357.89 KB)
Open PDF file, 3.19 MB,  Final Nitrogen TMDL Report for Falmouth Inner Harbor, June 2020 (English, PDF 3.19 MB)
Open PDF file, 6.8 MB,  Final Nitrogen TMDL Report for Waquoit Bay System; including Eel Pond, Quashnet River, Hamblin Pond, and Jehu River (English, PDF 6.8 MB)
Open PDF file, 1.11 MB,  Final Bacteria TMDL Report for the Three Bays System (English, PDF 1.11 MB)
Open PDF file, 628.89 KB,  Final Nitrogen TMDL Report for the Three Bays System (English, PDF 628.89 KB)
Open PDF file, 398.14 KB,  Final Nitrogen TMDL Report for Five Chatham Embayments (Stage Harbor, Sulphur Springs, Taylors Pond, Bassing Harbor and Muddy Creek) (English, PDF 398.14 KB)
Open PDF file, 826.1 KB,  Final TMDL Report of Bacteria for Frost Fish Creek, Chatham (English, PDF 826.1 KB)
Open PDF file, 2.56 MB,  Final TMDLs of Nitrogen for Great, Green, and Bournes Pond Embayment Systems (English, PDF 2.56 MB)
Open PDF file, 603.84 KB,  Final TMDL Report of Bacteria for Muddy Creek, Chatham (English, PDF 603.84 KB)
Open PDF file, 1.02 MB,  Final TMDL for Total Nitrogen for Allen, Wychmere & Saquatucket Harbors (English, PDF 1.02 MB)
Open PDF file, 1.33 MB,  Final TMDL for Total Nitrogen for the Herring River (English, PDF 1.33 MB)

Charles River Watershed

Open PDF file, 3.59 MB,  Optimal Stormwater Management Plan Alternatives: A Demonstration Project in Three Upper Charles River Communities (English, PDF 3.59 MB)
Open PDF file, 2.2 MB,  Final TMDL for Nutrients in the Upper/Middle Charles River (English, PDF 2.2 MB)
Open PDF file, 111.41 KB,  Final TMDL for Nutrients in the Upper/Middle Charles River:Appendix (English, PDF 111.41 KB)
Open PDF file, 1.77 MB,  Final Phosphorus TMDL Report for the Lower Charles River Basin (English, PDF 1.77 MB)
Open PDF file, 3.73 MB,  Final Pathogen TMDL Reports for the Charles River Watershed (English, PDF 3.73 MB)
Open PDF file, 1.12 MB,  Final Pathogen TMDL Reports for the Charles River Watershed, Appendix A (English, PDF 1.12 MB)
Open PDF file, 2.26 MB,  Final Pathogen TMDL Reports for the Charles River Watershed, Appendix B (English, PDF 2.26 MB)
Open PDF file, 547.3 KB,  Pathogen Hotspots in the Charles River Watershed (English, PDF 547.3 KB)

Chicopee River Watershed

Open PDF file, 2.7 MB,  Final TMDLs of Phosphorus for Quaboag and Quacumquasit Ponds (English, PDF 2.7 MB)
Open PDF file, 2.03 MB,  Final TMDLs of Phosphorus for Selected Chicopee Basin Lakes (English, PDF 2.03 MB)

Concord River Watershed

Not available

Connecticut River Watershed

Open PDF file, 2.01 MB,  Final TMDLs of Phosphorus for Selected Connecticut Basin Lakes (English, PDF 2.01 MB)

French River Watershed

Open PDF file, 5.02 MB,  Final TMDLs of Phosphorus for Selected French Basin Lakes (French, PDF 5.02 MB)

Islands Watershed

Open PDF file, 1.3 MB,  Final Chilmark Pond Estuarine System Total Maximum Daily Load for Total Nitrogen (English, PDF 1.3 MB)
Open PDF file, 2.48 MB,  Final Total-Nitrogen TMDL for Tisbury Great Pond/Black Point Pond Estuarine System (English, PDF 2.48 MB)
Open PDF file, 1.29 MB,  Final Edgartown Great Pond System Total Maximum Daily Load for Nitrogen (English, PDF 1.29 MB)
Open PDF file, 1.79 MB,  Final Farm Pond Estuarine System Total Maximum Daily Load for Total Nitrogen (Control Number 391.1) (English, PDF 1.79 MB)
Open PDF file, 2.08 MB,  Final Pathogen TMDL Report for the Islands Watershed (English, PDF 2.08 MB)
Open PDF file, 1.79 MB,  Final Lagoon Pond Estuarine System Total Maximum Daily Loads for Total Nitrogen (Control No. 390.1) (English, PDF 1.79 MB)
Open PDF file, 1.83 MB,  Final Lake Tashmoo Estuarine System Total Maximum Daily Load for Total Nitrogen (English, PDF 1.83 MB)
Open PDF file, 1.31 MB,  Final Nitrogen TMDL for Madaket Harbor/Long Pond (English, PDF 1.31 MB)
Open PDF file, 398.82 KB,  Final TMDLs of Total Nitrogen for Nantucket Harbor (English, PDF 398.82 KB)
Open PDF file, 1.14 MB,  Final Sengekontacket Pond Estuarine System Total Maximum Daily Loads for Total Nitrogen, Control Number 310.0 (English, PDF 1.14 MB)

Merrimack River Watershed

Not available

Millers River Watershed

Open PDF file, 3.28 MB,  Final TMDLs of Phosphorus for Selected Millers River Basin Lakes (English, PDF 3.28 MB)

Narragansett Bay Watershed

Open PDF file, 1.78 MB,  Final Pathogen TMDL for the Narragansett/Mt. Hope Bay Watershed (English, PDF 1.78 MB)
Open PDF file, 1.76 MB,  Final Bacteria TMDL for Palmer River Basin (English, PDF 1.76 MB)
Open PDF file, 277.35 KB,  Final Bacteria TMDL for Palmer River Basin Appendix A (English, PDF 277.35 KB)
Open PDF file, 1.67 MB,  Final Bacteria TMDL for Palmer River Basin Appendix B (English, PDF 1.67 MB)
Open PDF file, 359.62 KB,  Final Bacteria TMDL for Palmer River Basin Appendix C (English, PDF 359.62 KB)

Nashua River Watershed

Open PDF file, 723.51 KB,  Final TMDL for Bare Hill Pond (English, PDF 723.51 KB)

North Coastal Watershed

Open PDF file, 1.76 MB,  Final Pathogen TMDL for the North Coastal Watershed (English, PDF 1.76 MB)

Parker River Watershed

Open PDF file, 3.24 MB,  Final Pathogen TMDL for Parker River Basin (English, PDF 3.24 MB)

Shawsheen River Watershed

Open PDF file, 1020.53 KB,  Draft Storm Water Pollutant TMDL for Headwaters of the Shawsheen River (English, PDF 1020.53 KB)
Open PDF file, 517.7 KB,  Final TMDLs of Bacteria for Shawsheen River Basin (English, PDF 517.7 KB)

South Coastal Watershed

Open PDF file, 3.42 MB,  Final Pathogen TMDL for the South Coastal Watershed (English, PDF 3.42 MB)
Open PDF file, 974.96 KB,  Final TMDLs of Bacteria for Little Harbor, Cohasset (English, PDF 974.96 KB)

SuAsCo Watershed

Open PDF file, 1.36 MB,  Final TMDLs of Phosphorus for Lake Boon (Boons Pond) (English, PDF 1.36 MB)
Open PDF file, 2.18 MB,  Final Nutrient TMDL Report for the Assabet River (English, PDF 2.18 MB)
US Army Corps of Engineers: Assabet River Sediment and Dam Removal Study 

Taunton Watershed

Open PDF file, 10.11 MB,  Final West and East Monponsett Pond System Total Maximum Daily Loads For Total Phosphorus (English, PDF 10.11 MB)
Open PDF file, 1.2 MB,  Final Pathogen TMDL Report for the Taunton Watershed (English, PDF 1.2 MB)

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