Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Guidance
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. NPDES Permits Around the Nation

Administrative Record for the Preliminary Designation of Certain Stormwater Discharges in Massachusetts

If you cannot read, speak, write or understand the English language and require assistance accessing the documents on this page, please email R1.RDA@epa.gov to request interpretation or translation services of these documents free of charge.
Administrative Record Preliminary Designation Documents
Document TypeA.R. Index No.Document Name
A. Draft Determination DocumentsA.1Public Notice, NPDES Permit No. MAG8600000. October 31, 2024 (pdf) (198 KB)
A. Draft Determination DocumentsA.2Clean Water Act Residual Designation Determination for Certain Stormwater Discharges in the Charles, Mystic, and Neponset River Watersheds, in Massachusetts (pdf) (7 MB)
B. PetitionsB.1Petition for a Determination that Certain Commercial, Industrial, Institutional, and Multi‐Family Residential Property Dischargers Contribute to Water Quality Standards Violations in the Charles River Watershed, Massachusetts, and that NPDES Permitting of Such Properties is Required (pdf) (5.9 MB)
B. PetitionsB.2Petition for a Determination that Certain Commercial, Industrial, Institutional, and Multi‐Family Residential Property Dischargers Contribute to Water Quality Standards Violations in the Mystic River Watershed, Massachusetts, and that NPDES Permitting of Such Properties is Required (pdf) (335 KB)
B. PetitionsB.3Petition for a Determination that Certain Commercial, Industrial, Institutional, and Multi-Family Residential Property Dischargers Contribute to Water Quality Standards Violations in the Neponset River Watershed, Massachusetts, and that NPDES Permitting of Such Properties is Required. (pdf) (295 KB)
C. Federal Legal and Regulatory Authorities, Other Documents and PermitsC.1The Clean Water Act, 33 U.S.C. § 1251 et seq.
C. Federal Legal and Regulatory Authorities, Other Documents and PermitsC.2The Clean Water Act, § 402(p)(2)(E)
C. Federal Legal and Regulatory Authorities, Other Documents and PermitsC.340 CFR Part 122
C. Federal Legal and Regulatory Authorities, Other Documents and PermitsC.440 CRF Part 125
C. Federal Legal and Regulatory Authorities, Other Documents and PermitsC.540 CFR Part 124
C. Federal Legal and Regulatory Authorities, Other Documents and PermitsC.640 CRF Part 126
C. Federal Legal and Regulatory Authorities, Other Documents and PermitsC.755 Federal Register 47990 (Nov 16, 1990) (pdf) (288 MB)
C. Federal Legal and Regulatory Authorities, Other Documents and PermitsC.859 Federal Register 7629 (Feb 16, 1994) (Executive Order 12898)
C. Federal Legal and Regulatory Authorities, Other Documents and PermitsC.964 Federal Register 68722 (December 8, 1999) (pdf) (1.3 MB)
C. Federal Legal and Regulatory Authorities, Other Documents and PermitsC.1081 Federal Register 89320 (pdf) (359 KB)
C. Federal Legal and Regulatory Authorities, Other Documents and PermitsC.11Notice of Intent to File Suit Under the Clean Water Act (NOI) (filed by Conservation Law Foundation and the Charles River Watershed Association (July 14, 2022)) (pdf) (859 KB)
D. US EPA Region 1 Permits and Draft PermitsD.12003 Small MS4 Permit (pdf) (419 KB)
D. US EPA Region 1 Permits and Draft PermitsD.22016 MA MS4 Permit (April 13, 2016) (pdf) (1.1 MB)
D. US EPA Region 1 Permits and Draft PermitsD.32020 MA MS4 Permit Modification, (December 7, 2020) (pdf) (776 KB)
D. US EPA Region 1 Permits and Draft PermitsD.4City of Boston Individual Large MS4 Permit (pdf) (2.6 MB)
D. US EPA Region 1 Permits and Draft PermitsD.52003 Massachusetts Department of Transportation, Highway Division (MassDOT) NPDES permit (MA043025) (pdf) (419 KB)
E. 303(D), 305(B), TMDL-Related MaterialsE.1Final TMDLs of Bacteria for Neponset River Basin. 2002. (pdf) (1.7 MB)
E. 303(D), 305(B), TMDL-Related MaterialsE.2Final Pathogen TMDL for the Charles River Watershed. Massachusetts Department of Environmental Protection. (2007a). (pdf) (3.7 MB)
E. 303(D), 305(B), TMDL-Related MaterialsE.3Final Phosphorus TMDL Report for the Lower Charles River Basin. June 2007. (pdf) (1.8 MB)
E. 303(D), 305(B), TMDL-Related MaterialsE.4Final TMDL for Nutrients in the Upper/Middle Charles River. May 2011. (pdf) (111 KB)
E. 303(D), 305(B), TMDL-Related MaterialsE.5Addendum. Final TMDLs of Bacteria for Neponset River Basin. December 2012 (pdf) (824 KB)
E. 303(D), 305(B), TMDL-Related MaterialsE.6Mystic River Watershed Alternative TMDL Development for Phosphorus Management - Final Report. January 2020(pdf) (6 MB)
E. 303(D), 305(B), TMDL-Related MaterialsE.7MA DEP 2002 Integrated List of Waters (also known as the "303d list")
E. 303(D), 305(B), TMDL-Related MaterialsE.8Final Massachusetts Integrated List of Waters for theClean Water Act 2018/2020 Reporting Cycle (pdf) (4.8 MB)
E. 303(D), 305(B), TMDL-Related MaterialsE.9Charles River Watershed 1997/1998 Water Quality Assessment Report. Massachusetts Department of Environmental Protection. (2000). (doc) (723 KB)
E. 303(D), 305(B), TMDL-Related MaterialsE.10The Neponset River Watershed 1994 Resource Assessment Report. Massachusetts Department of Environmental Protection. (1995). (pdf) (12.6 MB)
F. MA DEP Regulatory Authorities, Guidance, and PolicyF.1314 CMR Part 4.05 (pdf) (15.6 MB)
F. MA DEP Regulatory Authorities, Guidance, and PolicyF.2Massachusetts Department of Revenue/Division of Local Services Property Type Classification (pdf) (1 MB)
F. MA DEP Regulatory Authorities, Guidance, and PolicyF.3Massachusetts Department of Environmental Protection, Assessment of Climate Change Impacts on Stormwater BMPs and Recommended BMP Design Considerations in Coastal Communities (Dec 2015) (pdf) (7.5 MB)
G. Cited Case LawG.1Upper Blackstone Water Pollution Abatement Dist. V. U.S.E.P.A., 690 F.3d 9, 11-12 (1st cir. 2012)
G. Cited Case LawG.2CLF v. Deval Patrick (No. 06-11295 WGY) (May 11, 2010) (pdf) (2 MB)
G. Cited Case LawG.3CLF v. Deval Patrick Court Order
G. Cited Case LawG.4U.S. et al. v. Metropolitan District Commission, 1985 WL 9071 (September 5, 1985) (pdf) (331 KB)
G. Cited Case LawG.5City of Las Vegas v. Lujan, 891 F.2d 927 (D.C. Cir. 1989) (pdf) (225 KB)
G. Cited Case LawG.6City of Taunton, Massachusetts v. United States Env't Prot. Agency, 895 F.3d 120, 135 (1st Cir. 2018)
G. Cited Case LawG.7American Iron and Steel Institute v. EPA, 115 F.3d 979, 1004 (D.C. Cir. 1997) (pdf) (375 KB)
H. Other Technical and Scientific DocumentsH.1Data. Charles River Water Quality monitoring data from 2013-2021. (xlsx) (2 MB)
H. Other Technical and Scientific DocumentsH.2Data. Crosswalk between Tax Assessors Codes, Land Use, and Pollutant Load Export Rates as developed for preliminary Designation. (xlsx) (66 KB)
H. Other Technical and Scientific DocumentsH.3Data. Results from EPA's 2020-2021 Charles River Parcel-Level Analysis to support decision-making in the preliminary designation. (xlsx) (50.6 MB)
H. Other Technical and Scientific DocumentsH.4Carpenter, S. R., Caraco, N. F., Sharpley, A. N., Smith, V. H., Howarth, R. W., & Correll, D. L. (1998). Nonpoint pollution of surface waters with phosphorus and nitrogen. Ecological Applications, 559-568. (pdf) (1.3 MB)
H. Other Technical and Scientific DocumentsH.5Center For Watershed Protection. (2003). Impacts of Impervious Cover on Aquatic Systems. Ellicott City, MD: Center For Watershed Protection. (pdf) (3.1 MB)
H. Other Technical and Scientific DocumentsH.6CH2M Hill. (2016). Stormwater Best Management Practices Recommendations Report. Prepared For Boston Water and Sewer Commission. (pdf) (245.3 MB)
H. Other Technical and Scientific DocumentsH.7Charles River Watershed Association. (2015). Cyanobacteria in the Charles River Lower Basin 2006-2014 Monitoring Report. (pdf) (2.9 MB)
H. Other Technical and Scientific DocumentsH.8Charles River Watershed Association. (2021). 2020 Annual Water Quality Report. (pdf) (4.3 MB)
H. Other Technical and Scientific DocumentsH.9Chen, J., Theller, L., Gitau, M. W., Engel, B. A., & Harbor, J. M. (2017). Urbanization Impacts on Surface Runoff of the Contiguous United States. Journal of Environmental Management, 187, 470-481. (pdf) (2 MB)
H. Other Technical and Scientific DocumentsH.10Driscoll, C. T., Whitall, D., Aber, J., Boyer, E., Castro, M., Cronan, C., . . . Ollinger, S. (2003). Nitrogen Pollution in the Northeastern United States: Sources, Effects, and Management Options. BioScience, 357-374. (pdf) (1 MB)
H. Other Technical and Scientific DocumentsH.11Howarth, R., & Marino, R. (2006). Nitrogen as the limiting nutrient for eutrophication in coastal marine ecosystems: Evolving views over three decades. Limnology and Oceanography, 364-376. (pdf) (227 KB)
H. Other Technical and Scientific DocumentsH.12Jacobson, C. R. (2011). Identification and quantification of the hydrological impacts of imperviousness in urban catchments: a review. Journal of Environmental Management, 1438-1448. (pdf) (397 KB)
H. Other Technical and Scientific DocumentsH.13Jani, J., Jang, Y.-Y., Lusk, M., & Toor, G. (2020). Composition of nitrogen in urban residential stormwater runoff: Concentrations, loads, and source characterization of nitrate and organic nitrogen. PLoS ONE, e0229715. (pdf) (3.2 MB)
H. Other Technical and Scientific DocumentsH.14King, B. S., Maker, M. E., Kazyak, P. F., & Weller, D. E. (2011). How Novel is Too Novel? Stream Community Thresholds at Exceptionally Low Levels of Catchment Urbanization. Ecological Applications, 21, 1659-1678. (pdf) (770 KB)
H. Other Technical and Scientific DocumentsH.15Lin, J. P. (2004). Review of Published Export Coefficient and Event Mean Concentration (EMC) Data. Vicksburg, MS: U.S. Army Engineer Research and Development Center. (pdf) (1.1 MB)
H. Other Technical and Scientific DocumentsH.16Mallin, M. A., Johnson, V. L., & Ensign, S. H. (2009). Comparative impacts of Stormwater Runoff on Water Quality of an Urban, a Suburban, and a Rural Stream. Environmental Monitoring and  Assessment, 159, 475-491. (pdf) (479 KB)
H. Other Technical and Scientific DocumentsH.17Charles River Watershed 1997/1998 Water Quality Assessment Report. Massachusetts Department of Environmental Protection. (2000). (doc) (2.7 MB)
H. Other Technical and Scientific DocumentsH.18Boston Harbor South Watersheds 2004 Assessment Report. Massachusetts Department of Environmental Protection. (2004).
H. Other Technical and Scientific DocumentsH.19Mystic River Watershed Assessment and Action Plan. Massachusetts Department of Environmental Protection. (2006). (pdf) (6.5 MB)
H. Other Technical and Scientific DocumentsH.20Final TMDL for Nutrients in the Lower Charles River Basin. Massachusetts Department of Environmental Protection. (2007b). (pdf) (1.8 MB)
H. Other Technical and Scientific DocumentsH.21Northeast Region Bacteria Source Tracking 2008 Results. Massachusetts Department of Environmental Protection. (2009).
H. Other Technical and Scientific DocumentsH.22Mystic River Watershed and Coastal Drainage Area 2004 -2008 Water Quality Assessment Report. Massachusetts Department of Environmental Protection. (2010a). (pdf) (2.4 MB)
H. Other Technical and Scientific DocumentsH.23Neponset River Watershed 2004 Water Quality Assessment Report. Massachusetts Department of Environmental Protection. (2010b). (pdf) (1 MB)
H. Other Technical and Scientific DocumentsH.24Final Pathogen TMDL for the Boston Harbor, Weymouth-Weir, and Mystic Watersheds. Massachusetts Department of Environmental Protection. (2018) (pdf) (4.8 MB)
H. Other Technical and Scientific DocumentsH.25Property Type Classification Codes, Non-Arm’s Length Codes and Sales Report Spreadsheet Specifications. Massachusetts Department of Revenue/Division of Local Services. (June 2016). (pdf) (1.3 MB)
H. Other Technical and Scientific DocumentsH.26Massachusetts Water Resources Authority. (2022). Combined Sewer Overflows (CSOs).
H. Other Technical and Scientific DocumentsH.27MassDOT. (2022, August). MassDOT Highway Impaired Waters Program.
H. Other Technical and Scientific DocumentsH.28MassGIS. (2016). 2016 Land Use/Land Cover Data.
H. Other Technical and Scientific DocumentsH.29MassGIS. (2022). MassGIS Data: Property Tax Parcels.
H. Other Technical and Scientific DocumentsH.30Mattson, M. D., & Isaac, R. A. (1999). Calibration of Phosphorus Export Coefficients for Total Maximum Daily Loads in Massachusetts Lakes. Lake and Reservoir Management, 15:3, 209-219. (pdf) (1 MB)
H. Other Technical and Scientific DocumentsH.31Moore, R. B., Johnston, C. M., Smith, R. A., & Milstead, B. (2011). Source and delivery of nutrients to receiving waters in the Northeastern and Mid-Atlantic Regions of the United States. JAWRA Journal of the American Water Resources Association, 965-990. (pdf) (3.5 MB)
H. Other Technical and Scientific DocumentsH.32National Research Council. (2000). Clean Coastal Waters: Understanding and Reducing the Effects of Nutrient Pollution. Washington, D.C.: National Academies Press.
H. Other Technical and Scientific DocumentsH.33National Research Council. (2008). Urban Stormwater Management in the United States. Washington, D.C.: National Academies Press.
H. Other Technical and Scientific DocumentsH.34Neponset River Watershed Association. (2014). Neponset River Estuary ACEC Water Quality and Restoration Action Plan. (pdf) (2.8 MB)
H. Other Technical and Scientific DocumentsH.35Neponset River Watershed Association. (2017). Hotspot Monitoring 2017 Report. (pdf) (383 KB)
H. Other Technical and Scientific DocumentsH.36Pitt, R., Maestre, A., & Morquecho, R. (2004). The National Stormwater Quality Database (NSQD, Version 1.1). (pdf) (951 KB)
H. Other Technical and Scientific DocumentsH.37Roy, A. H., & Schuster, W. D. (2009). Assessing Impervious Surface Connectivity and Applications for Watershed Management. Journal of the American Water Resource Association, 45(1).
H. Other Technical and Scientific DocumentsH.38Schueler, T. (2011). Technical Bulletin No. 9: Nutrient Accounting Methods to Document Local Stormwater Load Reduction in the Chesapeake Bay Watershed REVIEW DRAFT. Chesapeake Stormwater Network.
H. Other Technical and Scientific DocumentsH.39Shaver, E., Horner, R., Skupien, J., May, C., & Ridley, G. (2007). Fundamentals of Urban Runoff Management: Technical and Institutional Issues. Madison, WI: North American Lake Management Society. (pdf) (6.5 MB)
H. Other Technical and Scientific DocumentsH.40US EPA. (1999). Results of the Nationwide Urban Runoff Program. Washington D.C.: US EPA. (pdf) (2.2 MB)
H. Other Technical and Scientific DocumentsH.41US EPA. (2016a). 2016 Massachusetts Municipal Separate Storm Sewer General Permit (as amended).
H. Other Technical and Scientific DocumentsH.42USEPA. (2000). Nutrient Criteria Technical Guidance Manual - RIvers and Streams. (pdf) (2.7 MB)
H. Other Technical and Scientific DocumentsH.43USEPA. (2001). Nutrient Criteria Technical Guidance Manual - Esturine and Coastal Marine Waters. (pdf) (6.5 MB)
H. Other Technical and Scientific DocumentsH.44USEPA. (2005). A Hydrodynamic and Water Quality Model for the Lower Charles River Basin, Massachusetts. (pdf) (2 MB)
H. Other Technical and Scientific DocumentsH.45USEPA. (2013). A Long-Term Vision for Assessment, Restoration, and Protection under the Clean Water Act Section 303(d) Program. (pdf) (113 KB)
H. Other Technical and Scientific DocumentsH.46USEPA. (2014). Fact Sheet to the 2014 Draft MA Small MS4 Permit. (pdf) (1 MB)
H. Other Technical and Scientific DocumentsH.47USEPA. (2016b). MEMORANDUM - Annual Average Phosphorus Load Export Rates (PLERs) for Use in Fulfilling Phosphorus Load Reduction Requirements in EPA Region 1 Stormwater Permits. (pdf) (667 KB)
H. Other Technical and Scientific DocumentsH.48USEPA. (2022a, August). Environmental Challenges for the Mystic River Watershed.
H. Other Technical and Scientific DocumentsH.49USEPA. (2022b, August). Live Water Quality Data for the Mystic River.
H. Other Technical and Scientific DocumentsH.50USEPA. (2022c, August). Live Water Quality Data Lower Charles River.
H. Other Technical and Scientific DocumentsH.51USEPA. (2022d, August). Mystic River Watershed Report Cards.
H. Other Technical and Scientific DocumentsH.52USEPA. (2022e, August). Urban Waters - Neponset River.
H. Other Technical and Scientific DocumentsH.53USEPA. (2022f, August). The Charles River Initiative.
H. Other Technical and Scientific DocumentsH.54Neponset River Watershed Report Cards
H. Other Technical and Scientific DocumentsH.55Charles River Watershed Report Cards
H. Other Technical and Scientific DocumentsH.56Wang, S., Ma, Y., Zhang, X., & Shen, Z. (2022). Transport and sources of nitrogen in stormwater runoff at the urban catchment scale. Science of the Total Environment, 150281.
H. Other Technical and Scientific DocumentsH.57Waschbusch, R. J. (2000). Sources of Phosphorus in Stormwater and Street Dirt from two Urban Residential Basins in Madison, Wisconsin, 1994-1995. National conference on Tools for Urban Water Resource Management and Protection (pp. 15-55). US EPA.
H. Other Technical and Scientific DocumentsH.58EPA Memo: PLERs for Charles RD Evaluation (pdf) (224 KB)
I. EPA Policy DocumentsI.1EPA Legal Tools to Advance Environmental Justice (May 2022). (pdf) (2.7 MB)
I. EPA Policy DocumentsI.2U.S. EPA, Climate Adaptation Plan (October 2021) (pdf) (2.3 MB)
I. EPA Policy DocumentsI.3U.S. EPA, EPA 43-R-21-003, Climate Change and Social Vulerability in the United States: A focus on Six Impacts (2021) (pdf) (12.4 MB)
J. OtherJ.1Charles River Stormwater Permitting Residual Designation Authority Focus Group Sessions Summary (October 27 2020 to November 20, 2020) Feb 8, 2021 (pdf) (333 KB)
J. OtherJ.2Mystic River Watershed Association, "Sewage: An Environmental Justice Tragedy," blog post, Feb 5, 2021
Contact us about NPDES permits around the nation to ask a question, provide feedback, or report a problem.
Last updated on November 4, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.