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Stormwater Management

Every time it rains some of the water enters the ground, but the rest of the precipitation runs off over the land surface directly into streams, rivers, and lakes. This is known as stormwater runoff and the land area that drains to these bodies of water is called a watershed.

If left unchecked, stormwater can lead to flooding and polluted waterways. Johns Creek shares the Upper Chattahoochee watershed with Fulton County and 14 other counties surrounding Metro Atlanta, all of which use the water bodies in this watershed for both drinking water and recreation.

Everything that happens in this watershed – development, pollution, erosion, flooding – has the potential to affect the health and stability of our water, so proper stormwater management and watershed protection is essential.

a north Georgia stream

To ensure water quality in the city is maintained and enhanced, negative stormwater impacts are minimized, and state and federal requirements are satisfied, the City of Johns Creek has developed a coordinated Stormwater Management Program (5.6 MB) using a variety of methods:

Watershed Planning: Using watershed as a framework for managing land use and developing large scale solutions to regional stormwater quantity and quality problems.
Development Requirements: Addressing stormwater impacts of new development and redevelopment through stormwater management requirements and minimum standards.
Erosion & Sediment Control: Controlling erosion and soil loss from construction and post-construction areas and resulting downstream sedimentation.
Floodplain Management: Preserving the function of floodplain areas to reduce flood hazards, minimize risks to human life and property, and reduce modifications to streams and protect water quality.
Operations & Maintenance: Ensuring that stormwater management systems and structural controls work as designed and constructed. Includes the retrofitting of existing problem areas and streambank stabilization activities.
Public Education and Outreach
Public Participation/Involvement
Illicit Discharge Detection and Elimination
Pollution Prevention/Good Housekeeping