Bureau of Watershed Protection
Maintaining MS4 Infrastructure

What Is an MS4?
A municipal separate storm sewer system (MS4) is a conveyance or system of conveyances (e.g., roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, storm drains) that collects stormwater runoff and directs the untreated runoff into receiving streams and rivers.

Atlanta’s MS4
The City of Atlanta’s storm sewer drainage area is approximately 133.2 square miles, which may include more thanf 60,000 structures covering 10 stormwater drainage basins, based on estimates provided in the City’s 2006 Stormwater Management Program (SWMP) Annual Report.

The Department of Watershed Management Stormwater Compliance Division is responsible for responding to wet-weather complaints through site evaluation, identification of municipal storm structures, decisions regarding actions necessary for appropriate response and follow-up communications with customers.

Overview of Atlanta’s Stormwater Program

For Stormwater Frequently Asked Questions click here.

Other Stormwater Resources:
Georgia Stormwater Management Manual
EPA’s national stormwater website
EPA’s Stormwater BMPs

Stormwater complaints or service requests are to be forwarded to (404) 954-6340 for handling.

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