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

Sewer Systems Policies & Guidance

How MassDEP administers its sewer regulation programs.
Skip table of contents
You skipped the table of contents section.

Combined Sewer Overflows Policies & Guidance

Guidance for Abatement of Pollution from CSO Discharges, Open PDF file, 54.42 KB (English, PDF 54.42 KB)
Pollution Abatement from Combined Sewer Overflows - Policy, Open PDF file, 183.94 KB (English, PDF 183.94 KB)

Sewer Collection Systems Policies & Guidance

Guidelines for Performing Infiltration/Inflow Analyses and Sewer System Evaluation Surveys, Open PDF file, 2.79 MB (English, PDF 2.79 MB)
Response to Comments for Draft Guidelines for Performing Infiltration/Inflow Analyses and Sewer System Evaluation Surveys, Open PDF file, 155.01 KB (English, PDF 155.01 KB)
Frequently Asked Questions on Regulatory Requirements for Infiltration & Inflow (I/I) Removal Programs, Open PDF file, 120.96 KB (English, PDF 120.96 KB)
Presentation on Infiltration and Inflow Regulatory Requirements, Open PDF file, 2.84 MB (English, PDF 2.84 MB)
Fact Sheet: Regulatory Requirements for Infiltration & Inflow (I/I) Removal Programs, Open PDF file, 88.56 KB (English, PDF 88.56 KB)
Cover Letter for Optimizing Operation, Maintenance, and Rehabilitation of Sanitary Sewer Collection Systems - Guidelines, Open PDF file, 15.03 KB (English, PDF 15.03 KB)
Optimizing Operation, Maintenance, and Rehabilitation of Sanitary Sewer Collection Systems - Guidelines, Open PDF file, 3.31 MB (English, PDF 3.31 MB)

Help Us Improve Mass.gov  with your feedback

Please do not include personal or contact information.
Feedback