• State Standards in Effect for CWA Purposes
• Federally Proposed or Promulgated Standards

State Standards in Effect for CWA Purposes

• [See Massachusetts Surface Water Quality Standards (2006) ]
  (Effective September 19, 2007) Surface water quality standards for the state of Massachusetts. Please note that not all parts of this document are effective for Clean Water Act purposes. See cover pages for more info.
• [See Massachusetts Surface Water Quality Standards: Figures and Tables (2006) ]
  (Effective September 19, 2007) Figures and tables that accompany the Massachusetts surface water quality standards.
• [See Antidegradation Review Procedure for Discharge Requiring a Permit Under 413 CMR 3.03 (1993) ]
• [See Massachusetts Surface Water Quality Standards Implementation Policy for Mixing Zones (1993) ]
• [See Massachusetts Water Quality Standards Implementation Policy for the Control of Toxic Pollutants in Surface Waters (1980) ]
• Federal Regulations, 40 CFR 131.41
  (Effective December 16, 2004) Federal regulations establishing bacteria criteria for coastal and Great Lakes waters. This regulation is also known as the Beach Rule.

Variances

• [See Final Variance for the MWRA CSO Control Plan in the Charles River Basin (10/1/2010) ]
• [See Final Variance for CSO Discharges to the Alewife/Upper Mystic Basin (9/1/2010) ]

Combined Sewer Overflows and Wet Weather

• [See Final Administrative Determinations for CSO-Impacted Waters Within the Massachusetts Water Resources Authority (MWRA) Sewer Service Area (1997) ]
  The document identifies the water quality classifications that apply to CSO-impacted waters.
• [See Policy for Abatement of Pollution From Combined Sewer Overflows (1997) ]
• [See Stormwater Management, Volume One: Stormwater Technical Handbook (1997) ]
• [See Stormwater Management, Volume Two: Stormwater Technical Handbook (1997) ]

Thermal Discharges

• [See Memorandum on Thermal Discharge/NPDES Review (6/9/1992) ]

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Federally Proposed or Promulgated Standards

• Final Water Quality Standards Bacteria Rule for Coastal and Great Lakes Recreation Waters (November 8, 2004)

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• Massachusetts Surface Water Quality Standards (2006) (PDF)(20 pp, 264 K)
• Massachusetts Surface Water Quality Standards: Figures and Tables (2006) (PDF)(97 pp, 7 MB)
• Antidegradation Review Procedure for Discharge Requiring a Permit Under 413 CMR 3.03 (1993) (PDF)(12 pp, 1 MB)
• Massachusetts Surface Water Quality Standards Implementation Policy for Mixing Zones (1993) (PDF)(9 pp, 669 K)
• Massachusetts Water Quality Standards Implementation Policy for the Control of Toxic Pollutants in Surface Waters (1980) (PDF)(14 pp, 1 MB)
• Final Variance for the MWRA CSO Control Plan in the Charles River Basin (10/1/2010) (PDF)(12 pp, 558 K)
• Final Variance for CSO Discharges to the Alewife/Upper Mystic Basin (9/1/2010) (PDF)(13 pp, 732 K)
• Final Administrative Determinations for CSO-Impacted Waters Within the Massachusetts Water Resources Authority (MWRA) Sewer Service Area (1997) (PDF)(6 pp, 525 K)
• Policy for Abatement of Pollution From Combined Sewer Overflows (1997) (PDF)(11 pp, 1 MB)
• Stormwater Management, Volume One: Stormwater Technical Handbook (1997) (PDF)(55 pp, 5 MB)
• Stormwater Management, Volume Two: Stormwater Technical Handbook (1997) (PDF)(181 pp, 15 MB)
• Memorandum on Thermal Discharge/NPDES Review (6/9/1992) (PDF)(8 pp, 569 K)