MS4 Permit Guidance

What is the MS4 Permit?

The Municipal Separate Storm Sewer System (MS4) Permit was created in 2004 and is required by both federal and state regulations to address water quality and flooding issues in municipal stormwater systems.

MS4 Overview

The MS4 permitting program in New Jersey requires municipalities to develop stormwater management programs that incorporate the following six Statewide Basic Requirements (SBRs):

Public involvement and participation including public notice.
Local public education and outreach.
Construction site stormwater runoff.
Post construction stormwater management in new development and redevelopment.
Pollution prevention/good housekeeping.
MS4 stormwater system mapping, and illicit discharge and scouring detection and control.

For more information from New Jersey Future, see their guide, “Understanding the New MS4 Permit,” linked here.

Rutgers University Water Resources Program

Dr. Chris Obropta and Alena Brayshaw presented at the Environmental Commissions of Monmouth County on January 23, 2025, Holmdel, NJ.

See their presentation, “Municipal Separate Storm Sewer System (MS4) Permit: What needs to get done and how we can help,” linked here.

For more information on the Rutgers Water Resources Program, check out www.water.rutgers.edu.