Wastewater Management


Fairfax County Wastewater ManagementWelcome to the Fairfax County Wastewater Management information site. Wastewater Management protects both the public’s health and the region’s water quality by collecting and treating wastewater. The total system can collect and clean up to 161 million gallons of wastewater per day for about 340,000 residential and business connections in Fairfax County. 

Fairfax County’s wastewater collection and conveyance system, one of the nation’s largest sanitary sewer systems, is located in an approved sewer service area that covers nearly 234 square miles.

For odor complaints, call 703-550-9740, extension 278, TTY 711.

 Announcements and Information

Engineering Planning

Environmental Monitoring and Quality

Financial Planning

Wastewater Collection

Wastewater Treatment



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Phone: County Main Number - 703-FAIRFAX (703-324-7329), TTY 711 | County Phone Listing

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