Stormwater Management

Guide for Stormwater Management and Best Management Practice Facilities

Key Issues
  • All owners of private stormwater facilities shall provide maintenance to ensure the facilities are performing their design functions.
  • Owners shall submit inspection reports and perform maintenance in accordance Virginia Administrative Code Sections 4VAC50-60-150 and 9 VAC 10-20-120. For properties with executed BMP Maintenance and Monitoring Bond agreements, owners shall also comply with the maintenance schedule as outlined in their agreement. Inspection report checklists can be downloaded from Chapter 9 of the Virginia Stormwater Management Handbook at For facilities not covered in Chapter 9, use the City of Fairfax standard form. For questions regarding stormwater detention facilities, contact the City Engineer.
  • The City of Fairfax has the right to inspect private facilities to determine whether the facility is in safe and proper working order. The city will provide the Owner copies of the inspection report when deficiencies are noted.
Mosquito Issues Relating to SWM Facilities
  • Storm sewers provide breeding grounds for the principle mosquito species that spreads the West Nile virus.
  • Preventing pooling of stagnate water and treating storm sewers with larvacide will assist in the reduction mosquito breeding.
  • It is the owner's responsibility to inspect and treat its own facilities. However, if mosquito larvae are found during a city facility inspection, the City of Fairfax will treat the facility with larvacide.
  • For more information on mosquito issues, contact the Fairfax County Health Department at 703-246-2300.

Current Inventory of Stormwater Management Facilities
Pond Systems
Dry Ponds - 21
Wet Ponds - 1

Filter Systems
Cartridge - 10
Sand - 3
Filterra - 9

Underground Detention Systems
Concrete Box Culverts - 8
Corrugated Metal Pipe System - 45

Retention Systems
Bioretention - 7
Gravel Retention Cells - 8
Infiltration Trenches - 7
Rain Tank - 1

Oil/Grit Separators
Grease Traps (approx.) - 112
Stormceptors - 5
City of Fairfax Contacts

For questions or to report a problem with a stormwater management facility, please contact the Department of Public Works at 703-385-7980.

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