Stormwater management is the process of controlling runoff (rain, melting snow and ice, etc.) draining off roads, sidewalks, driveways, roofs and other hard surfaces. Once the runoff reaches natural areas (grass, woodland, etc.), some of it will soak into the ground or flow directly into streams, but a large amount is collected into the storm drainage system. (In Fairfax County, the storm drainage system is not part of the sanitary sewer system, which pipes sewage to a treatment plant.) The runoff flows into the storm drainage system through curb inlets, yards inlets, grates, etc., then storm pipe systems carry the runoff either to stormwater detention facilities or directly to streams.

Tell me more about stormwater management

Announcements

• Volunteer Opportunities

Flooding

• Belle View/New Alexandria Flood Protection (Hurricane Isabel)
• Flood Investigation for Cameron Run/Huntington/Arlington Terrace (June 2006 flooding)
• General Information

Reports

• Stormwater Reports

Stormwater / Storm Drainage Facilities

• Floatables
• Maintaining Stormwater Management Facilities
• Municipal Separate Storm Sewer System (MS4) Permit
• Owner's Guide: Maintaining Stormwater Management Facilities
• Public Design Standards - Public Facilities Manual (PDF)
• Storm Drainage System
• Stormwater Management Pond Maintenance Request Form
• Tree Preservation and Planting In and Around Stormwater Management Ponds
• What is Stormwater Management?

Streams and Floodplains

• General Information About Floodplains
• Perennial Stream Identification and Mapping
• Riparian Buffer Restoration Project
• Stormwater and Stream Health Action Steps (PDF)
• Stream Protection Strategy Baseline Study
• Stream Quality Assessment Program
• Stream Stabilization and Restoration
  

Watersheds

• Countywide Watershed Planning
• Nonpoint Source Pollution Solutions
• What is a Watershed?