News & Events

The Annual Report for 2018, approved Chesapeake Bay Total Maximum Daily Load (TMDL) Action Plan and Local TMDL Action Plan developed by the City of Manassas Department of Public Works as required by the Municipal Separate Storm Sewer System (MS4) general permit, issued by the Virginia Department of Environmental Quality (VDEQ) are now available for review.

What is stormwater?

When it rains or snows, the water and melting snow flows over the rooftops, yards, and everything else around us. As it travels it picks up pollutants such as trash, oil, sediment and pet waste along with anything else in its path. Sidewalks, driveways and streets don’t absorb water so it flows into the storm drain inlets curbside. Once the water enters the inlet, it travels through pipes until it arrives at the nearest creek, lake, river or reservoir.

Where does stormwater go?

The water runoff from a rainstorm or snowfall feeds into our wetlands, rivers, lakes and reservoirs. It's the same water that we use for recreation. It also sustains our local wildlife.

In the City of Manassas:

  • There are 5,320 storm drains that connect to 22 public stormwater
    ponds and between 25 - 30 private ponds in the city.
  • The largest pond is at the interchange of Godwin Drive, Nokesville Road, and the 234 By-pass. A second large pond is at Winter's Branch, which flows between Wellington Road and Hastings Drive near Jennie Dean School. There is a third pond at Cockrell Branch and another behind the Public Works Facility.
  • The Sumner Lake subdivision pond and the twin ponds at Owen's Brook subdivision complete the five largest in the city. All empty into other tributaries such as Broad Run, which empties into the Occoquan River, which eventually leads to the Chesapeake Bay.
  • The city has two watersheds: Broad Run and Bull Run which drain to the Occoquan River.

Stormwater drains and sewers are not the same

The sanitary sewer is a system of underground pipes and tunnels that carry sewage from bathrooms, sinks and kitchens to a wastewater treatment plant where it is filtered, treated and discharged.

The stormwater drain only carries water runoff from snow and rain. It is not designed to carry sewage or accept hazardous wastes. Storm drain inlets are typically found in curbs and low-lying outdoor areas.

For Stormwater emergencies
call the Operations Center (24/7) at 703-257-8353.

If you are experiencing a Police or Fire Emergency, dial 911.