Massachusetts State Seal An official website of the Commonwealth of Massachusetts Here's how you know

Official websites use .mass.gov

A .mass.gov website belongs to an official government organization in Massachusetts.

Secure websites use HTTPS

A lock icon or https:// means you've safely connected to the official website. Share sensitive information only on official, secure websites.

Skip to main content

Underground Injection Control (UIC)

The UIC program protects groundwater from contamination.

Some types of wells allow fluids to discharge into the ground. These discharges could contaminate water in the ground. By regulating these wells, the UIC program helps protect the safety of underground drinking water sources.

What would you like to do?

Top tasks

Submit a permit application or form  UIC Technical Compliance Forms 

All other tasks

WS 06: Registration of a Class V UIC Well and Modification of an Existing Registration  UIC Class V Well: Completion of Construction Notification Form  WS 06d: Pre-Closure of a Previously Registered UIC Well  UIC Class V Well Post-Closure Notification Form 

What you need to know

UIC Guidance  UIC Class V Well Types  Online filing requirement  Design guidelines for UIC wells  Detailed information about UIC  How the UIC program works  Guidance for closing UIC wells  Frequently asked questions about closing UIC wells  When does a public water system need a UIC registration?  Questions about pre-closure of a registered UIC well  Guidance for sampling soil or groundwater under the UIC Program  UIC and contaminated sites 

Contact Information

Online

Email MassDEP Underground Injection Control (UIC) Program at Ask.UIC@mass.gov

Related Services

Image credits:  Ohio EPA

Help Us Improve Mass.gov  with your feedback

Please do not include personal or contact information.
Feedback