offered by
Massachusetts Department of Environmental Protection
related to
Septic Systems & Wastewater

Septic Systems & Title 5

Many homes in Massachusetts have underground wastewater management systems called septic tanks. Title 5 rules specify how these systems should be installed, used, and maintained.

Learn how to care for your septic system, get it inspected, and more.

First time? Start here.

Guide:
Buying or Selling Property with a Septic System 

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Top tasks

Requirements for new construction of a Title 5 system  Approved Title 5 innovative/alternative technologies  Title 5 forms 

What you need to know

Hiring Title 5 System Inspectors and Soil Evaluators  How to care for and maintain your septic system  Septic system inspections and repairs  Septic system additives allowed in Massachusetts  System Inspectors & Soil Evaluators: Training, Licensing, and Renewal  Septic system inspection guidance 
See all 12 of Septic Systems & Title 5  

Contact Information

Phone

Title 5 Hotline: 617-292-5673

Online

Email DEP.Title5@mass.gov

More Information

Additional Resources

310 CMR 15.00: Septic Systems ("Title 5")
310 CMR 11.00: General Application and Administration of Environmental Code
Title 5/Septic Systems Policies & Guidance
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