Stormwater Service District


wet pondOn May 1, 2012, the Fairfax County Board of Supervisors approved an increase in the Stormwater Service District tax for fiscal year 2013 from $0.015 per $100 of assessed real estate value to $0.02 per $100 of assessed real estate value.

The stormwater service district includes all of Fairfax County and the towns of Clifton, Herndon and Vienna. Federal government property and the City of Fairfax are excluded from the stormwater service district.

In Fiscal Year 2010, the Board of Supervisors established a Stormwater Service District to provide a dedicated funding source for stormwater management. A service district levy of $0.010 (one cent) per $100 of was dedicated to funding the entire stormwater management program.

Much of the county developed from the 1950s through the 1970s prior to requirements for stormwater controls. Prior to fiscal year 2010, the county’s stormwater management program had been supported by the general fund. More recent budget constraints resulted in less funding for capital project support.

With the passage of the Clean Water Act, stricter state and federal regulations have been enacted that address the quality and quantity of stormwater runoff that flows to the Chesapeake Bay. In addition, there are more than 1,500 miles of county-owned stormwater pipes valued at more than one billion dollars. Approximately 250 miles of these pipes are more than 40 years old. As the system ages, the county must reinvest in its stormwater infrastructure to ensure against hazards, flooding and environmental damage  Routine maintenance is significantly more cost effective than allowing the system to fail before repairing it.

These stricter regulatory requirements and the need to reinvest in the county's aging infrastructure resulted in the need to establish a funding mechanism that was independent of the general fund.

Average Annual Cost

Based on the average assessment of $545,279, a detached, single family property owner will pay just over $9.08 per month.

If a property tax bill is sent directly to a mortgage company, it will be paid as part of the real estate tax payment. 

How Funding is Used

To improve, operate and maintain the county's stormwater system:

  • Routine maintenance includes repairing failed and failing stormwater systems and removing debris from the system to prevent flooding.

To meet state and federal regulatory requirements:

  • The county owns and is required to inspect and maintain more than 1,500 miles of pipe and paved channels; 42,000 stormwater structures; and 1,300 stormwater management facilities.
  • The county is required to inspect approximately 3,000 private stormwater management facilities.

To meet state dam safety regulations:

  • New and more stringent Virginia dam safety regulations have increased the requirements for more frequent inspections and performance standards for state-regulated dams.

To meet state and federal water quality requirements and standards:

  • The commonwealth of Virginia and the U.S. Environmental Protection Agency are requiring localities to take significant additional steps to reduce the impact of urban stormwater runoff through the municipal separate storm sewer system permit, known as MS4.
  • The MS4 permit requires compliance with the National Pollutant Discharge Elimination System based on the Clean Water Act of 1987.
  • More information about the county's MS4 permit and annual reports may be seen at http://www.fairfaxcounty.gov/dpwes/stormwater/ms4permit.htm.

More information:
Stormwater Planning Division
703-324-5500, TTY 711
e-mail


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