Regulations & Standards
Water, Wastewater & Wetlands: Regulations & Standards
Drinking Water
236 CMR 2.00: Drinking water operator certification
Board of Certification Website
236 CMR 3.00: Classification of drinking water systems and operators
PDF 8 KB
236 CMR 4.00: Public water supply operator certification
Board of Certification Website
236 CMR 5.00: Disciplinary actions against drinking water supply operators
PDF 7 KB
310 CMR 21.00: Federal Safe Drinking Water Act Assessment
PDF 47 KB
310 CMR 22.00: The Massachusetts Drinking Water Regulations - December 2009
The version promulgated by the Secretary of State in December 2009 contained typographical errors. Those errors have now been corrected. July 2010.
PDF 1.3 MB
310 CMR 22.06B: Lead & Copper Rule
Summary of revised requirements:
Web page
310 CMR 22.22: Cross Connection Regulations
MS Word 150 KB | PDF 76 KB
310 CMR 22.26: Ground Water Rule
MS Word 148 KB | PDF 34 KB
310 CMR 27.00: Underground Injection Control
PDF 61 KB
More information about Underground Injection Control
Web page
310 CMR 28: Water Supply Contamination Correction Program
PDF 28 KB
310 CMR 46.00: Certification of Well Drillers and Filing of Well Completion Reports
Effective October 1, 2009, the Well Drillers Program was transferred from the Department of Conservation & Recreation (DCR) to MassDEP. 310 CMR 46.00 replaces 313 CMR 3.00, under which the Well Drillers Program was regulated by DCR.
Text of regulation:
PDF 25 KB
MassDEP Response to Comments
Web page
2011 Standards & Guidelines for Contaminants in Massachusetts Drinking Water
Cover memo, introduction, and tables of guidance values. June 2011.
MS Word 246 KB | PDF 79 KB
Tables of guidance values linked to individual contaminant reports
Web page
DWP's use of Office of Research and Standards Drinking Water Guidelines and US EPA Health Advisory Levels
Web page
Immediate Action Levels for Water Treatment Plant Chemicals
(formerly referred to as "Memorandum on Treatment Chemicals as Do Not Drink or Use Guidance")
Web page
Uranium Activity to Mass Conversion Factor Guideline in drinking water compliance monitoring and risk assessment
Web page
Ground Water Rule
Effective December 1, 2009, all Massachusetts public water systems using ground water must comply with the new federal Ground Water Rule, which is intended to increase protection against potential viral contamination from ground water sources.
New Ground Water Rule Q&A
Web page
US EPA's Ground Water Rule page
US EPA Website
Model Floor Drain Regulation
Web page
Wellhead Protection Regulations, annotated - April 2001
MS Word 73 KB | PDF 42 KB
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Water, Wastewater & Wetlands: Regulations & Standards
Groundwater
314 CMR 5.00: Groundwater Discharge Permits - revised March 2009
The revisions to 314 CMR 5.00 promulgated in March 2009 streamline the existing permitting process and reduce the time it takes an applicant to obtain a groundwater discharge permit.
PDF 235 KB
Model Agreements
Templates for Trust Agreement for Capital Reserve Account and Escrow Agreement for Repair and/or Replacement Account, as described in 314 CMR 5.15(2)(b) and 314 CMR 5.10(8)(k)1.a, respectively.
Trust Agreement for Capital Reserve Account
Web page
Escrow Agreement for Repair and/or Replacement Account
Web page
314 CMR 6.00: Groundwater Quality Standards
This regulation has been rescinded. Revisions to 314 CMR 5.00 promulgated in March 2009 eliminated the need for this regulation.
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Water, Wastewater & Wetlands: Regulations & Standards
Industrial Wastewater
Fact Sheet: Revised Sewer Regulations - July 2009
Summarizes January 2007 amendments to 257 CMR 2.00, 310 CMR 70.00, 314 CMR 7.00 & 314 CMR 12.00
MS Word 144 KB | PDF 99 KB
310 CMR 70.00: Environmental Results Program Certification - revised January 2007
Revisions promulgated in January 2007 streamlined state permit and approval requirements for sewer connections, sewer extensions, and industrial wastewater management.
Web page
310 CMR 71.00: Industrial Wastewater, Photo Processors & Printers
PDF 55 KB
310 CMR 72.00: Industrial Wastewater, Dry Cleaners
PDF 32 KB
314 CMR 7.00: Sewer System Extension & Connection Permit Program - revised January 2007
Revisions promulgated in January 2007 streamlined state permit and approval requirements for sewer connections, sewer extensions, and industrial wastewater management.
PDF 116 KB
314 CMR 18.00: Industrial Wastewater Holding Tanks
PDF 77 KB
Wastewater & Sewer Regulations
Web page
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Water, Wastewater & Wetlands: Regulations & Standards
Laboratory Certification
310 CMR 42.00: Certification and Operation of Environmental Analysis Laboratories - October 2007
Final Regulation
PDF 135 KB
Response to Comments for 310 CMR 42.00
MS Word 55 KB | PDF 72 KB
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Water, Wastewater & Wetlands: Regulations & Standards
State Revolving Fund
310 CMR 44.00: The Clean Water State Revolving Fund regulations - January 2012
PDF 120 KB (opens in new window)
Enhanced loan subsidy memo
MS Word 47 KB | PDF 68 KB
Zero percent rate Q&A
MS Word 38 KB | PDF 101 KB
Instructions for zero percent interest rate projects financed under CWSRF
MS Word 62 KB | PDF 36 KB
310 CMR 45.00: The Drinking Water State Revolving Fund regulations
PDF 86 KB
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Water, Wastewater & Wetlands: Regulations & Standards
Title 5/Septic Systems
310 CMR 11.00: Administration of the state environmental code by boards of health
PDF 39 KB
310 CMR 15.00: The state environmental code regulating Septic Systems
Beginning Jan. 1, 2007, System Inspectors & Soil Evaluators will be required to renew approvals every 3 years.
PDF 962 KB
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Water, Wastewater & Wetlands: Regulations & Standards
Wastewater & Sewer
Fact Sheet: Revised Sewer Regulations
Summarizes January 2007 amendments to 257 CMR 2.00, 310 CMR 70.00, 314 CMR 7.00 & 314 CMR 12.00
Web page
257 CMR 2.00: Certification of Wastewater Treatment Plant Operators - revised June 2007
Revisions promulgated in June 2007 clarified the types of treatment systems exempt from certified operator requirements.
PDF 100 KB
310 CMR 32:00: Land Application of Sludge and Septage
PDF 168 KB
310 CMR 70.00: Environmental Results Program (ERP) Certification - January 2007
Revisions promulgated in January 2007 streamlined state permit and approval requirements for sewer connections, sewer extensions, and industrial wastewater management.
Web page
314 CMR 3.00: Surface Water Discharge Permits
PDF 218 KB
314 CMR 7.00: Sewer System Extension And Connection Permit Program - revised January 2007
Revisions promulgated in January 2007 streamlined state permit and approval requirements for sewer connections, sewer extensions, and industrial wastewater management.
PDF 119 KB
314 CMR 8.00: Supplemental Requirements For Hazardous Waste Management Facilities
PDF 69 KB
314 CMR 12.00: Operation and Maintenance Standards for Wastewater Treatment Plants - revised March 2009
Revisions promulgated in March 2009 clarified the responsibility of contract operators for operating and maintaining wastewater treatment facilities in accordance with approved operation & maintenance plans and staffing plans, and for performing the monitoring, reporting, and record-keeping required by the facility's discharge permit.
PDF 69 KB
314 CMR 18.00: Industrial Wastewater Holding Tank and Container Construction, Operations, and Record Keeping Requirements
Web page
Fact Sheet: Regulation of Industrial Wastewater Holding Tanks and Containers
Web page
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Water, Wastewater & Wetlands: Regulations & Standards
Wastewater - Reclaimed Water
314 CMR 20.00: Reclaimed Water Permit Program and Standards - Promulgated March 2009
These regulations authorize MassDEP to establish a permitting program for water reuse, including requirements for the use, sale, and distribution of reclaimed water.
PDF 195 KB
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Water, Wastewater & Wetlands: Regulations & Standards
Water Management
310 CMR 36.00: The Water Management Act Regulations
NOTE: The revised regulations promulgated in May 2005 contained clerical errors. The clerical errors were corrected in July 2005, but the promulgation date remains May 2005. This version reflects the corrections.
MS Word 824 KB | PDF 135 KB
MGL Ch21: The Massachusetts Water Management Act
Mass. General Laws Website
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Water, Wastewater & Wetlands: Regulations & Standards
Water Quality
314 CMR 2.00: Permit Procedures
Revisions promulgated in March 2009 streamline the process for issuing surface water discharge permits.
PDF 60 KB
314 CMR 4.00: Surface Water Quality Standards - January 2007
Standards PDF 126 KB
High resolution tables and figures PDF 7 MB
314 CMR 9.00: 401 Water Quality Certification for Discharge of Dredged or Fill Material, Dredging, and Dredged Material Disposal in Waters Within the Commonwealth - June 2009
PDF 191 KB
Revisions promulgated in June 2009 address necessary actions to eradicate infestation by Asian Longhorn Beetles. The revised language is found in 314 CMR 9.12. Related language has also been incorporated into 310 CMR 10.00, the Wetlands Protection Act Regulations.
Revisions promulgated January 2, 2008, encourage stormwater recharge, the increased use of low impact development techniques, improved operation and maintenance of stormwater best management practices, and the removal of illicit connections from stormwater management systems. MassDEP has accordingly revised the Stormwater Management Standards, which have been incorporated into 314 CMR 9.00.
Summary of Stormwater Revisions
MS Word 45 KB | PDF 16 KB
Stormwater Revisions to 314 CMR 9.00
MS Word 43 KB | PDF 34 KB
310 CMR 30.00 Hazardous Waste Regulations relating to Dredged Material
Current regulations: Web page
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Water, Wastewater & Wetlands: Regulations & Standards
Waterways
310 CMR 9.00: The Massachusetts Waterways Regulations (Chapter 91) - June 2009
Amendments promulgated on June 26, 2009, to subsections of 310 CMR 9.11 clarify Waterways Application Permit Review schedules.
PDF 394 KB
EOEEA Regulations on Public Determination Benefit
This regulation provides the process by which the Secretary of Energy & Environmental Affairs issues a public benefit determination for projects and uses in landlocked tidelands. This regulation can be found at this website: http://www.env.state.ma.us/mepa/downloads/2008pbdregs.pdf, which will open in a new browser window.
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Water, Wastewater & Wetlands: Regulations & Standards
Wetlands
301 CMR 10.00: Densely developed areas under the Rivers Protection Act
July 2008 - The application form for Designation of a Densely Developed Area is being updated. To request a copy of the current form, please contact the Wetlands Program (DEP.Wetlands@state.ma.us or 617-292-5854).
MS Word 83 KB | PDF 124 KB
310 CMR 1.00: Adjudicatory Proceeding Rules - October 2008
Web page
310 CMR 10.00: The Wetlands Protection Act Regulations - June 2009
The full version of the Wetlands Protection Act in two sections. Revisions promulgated in June 2009 make provision for necessary actions to eradicate Asian Longhorn Beetle infestations within the parameters of the Wetlands Protection Act. Related language has also been incorporated into 314 CMR 9.00, 401 Water Quality Certification for Discharge of Dredged or Fill Material, Dredging, and Dredged Material Disposal in Waters Within the Commonwealth.
Part A (regulation): PDF 590 KB
Part B (appendices): PDF 369 KB
Summary of Stormwater Management Standards Revisions
To encourage stormwater recharge, the increased use of low impact development techniques, improved operation and maintenance of stormwater best management practices, and the removal of illicit connections from stormwater management systems, MassDEP has revised the Stormwater Management Standards. The revised Standards have been incorporated into 310 CMR 10.00 and new sections added. MassDEP has also made some technical changes to 310 CMR 10.00. Promulgated January 2, 2008.
Summary of Revisions
MS Word 45 KB | PDF 16 KB
310 CMR 12: Coastal wetlands orders
PDF 81 KB
310 CMR 13: Inland wetlands orders
PDF 81 KB
310 CMR 23: Abandoned cranberry bogs
PDF 57 KB
The Massachusetts Rivers Protection Act - 1996 Amendment
Web page
Wetlands Fees & Payments Information
Web page
The Wetlands Protection Act, MGL Chapter 131, Section 40 - February 1997
PDF 47 KB
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