Current Status of MS4 Program

ODEQ has been delegated Stormwater Phase II MS4 Permitting. There are currently two Phase I MS4 cities, Oklahoma City and Tulsa, and 48 Phase II Small MS4 cities.

Fore more details about MS4 Permitting, including definitions and frequently asked questions, go to EPA's MS4 website (exit DEQ site).

Oklahoma City MS4 Permit

The Oklahoma City MS4 Draft Permit became effective on March 15, 2013. The permit and fact sheet are available below.

• Oklahoma City MS4 Permit (1.3 MB)
• Oklahoma City MS4 Fact Sheet (344 KB)
• Oklahoma City MS4 Response to Comments (108 KB)

Tulsa MS4 Permit

The Tulsa MS4 Permit became effective on October 16, 2011. The permit, fact sheet, and response to comments are available below.

• Tulsa MS4 Permit (264 KB)
• Tulsa MS4 Fact Sheet (144 KB)
• Tulsa MS4 Response to Comments (46 KB)

Small MS4 Permit

The MS4 permit for small communities became effective on February 8, 2005. The permit, fact sheet, and response to comments are available below.

• Small MS4 Permit (826 KB)
• Small MS4 Fact Sheet (250 KB)
• Small MS4 Response to Comments (110 KB)
• Small MS4 Notice of Intent (58KB)
• Small MS4 Notice of Termination (26 KB)

For questions about the MS4 program, please contact Karen Milford.

• OKC MS4 Stormwater Permit
  Public Notice | Final Permit | Fact Sheet | Response to Comments
  15 Mar 2013
• Tulsa MS4 Permit
  Final Permit | Fact Sheet | Response to Comments
  26 Sep 2011
• Presentation from 24 Apr 2009 Small MS4 Stakeholders Meeting
• Presentation from 27 Feb 2009 Small MS4 Stakeholders Meeting
• OKC MS4 Permit
  permit | fact sheet | response to comments
• MS4 Operators Conference
  agenda | announcement | registration form | EPA website

Urbanized Area (UA) Information