Fire Hydrant Flushing

The fire hydrant flushing program is a vital part of the Village’s water pumping and distribution system maintenance schedule. Hydrants are flushed twice a year, in the spring and fall.
 
Each hydrant is thoroughly inspected and operated. Flow readings are taken to evaluate system capability to provide sufficient water supply. Low flows may indicate a water main valve is closed or not operating properly. Large volumes of water are moved through the mains during flushing which pressure cleans the internal walls of the piping and increases the main’s longevity.

The water pumping stations also benefit from hydrant flushing. As large volumes of water are flowed through the system, the water storage tanks’ levels will fluctuate more than they normally do. This allows the water operators to check pressure adjusting and pumping stations’ ability to respond to these pressure fluctuations and gain an overall picture of system performance during a peak usage event.

Lombard Fire Department to Conduct Fall Hydrant Testing

The Lombard Fire Department crews will beperforming the annual fall fire hydrant testing beginning the week of September3, 2018. Workers will test more than 600+ hydrants over the course of an eightweek period.

The fire hydrant testing program is a way toevaluate the Village’s water pumping and water distribution system. Datagathered from this program benefits the Fire Department, the Fire PreventionBureau and the Public Works Department. 

During hydrant testing, pairs of hydrants are thoroughly inspected and operated. Flow readings are taken to evaluate system capability to provide sufficient water supply for fire suppression crews during a fire, commercial and residential water needs, and Public Work’s Water Department needs.

Testing Fire Department crews will be concentrating their efforts in this program for approximately eight weeks. When crews are in the area, residents may experience the following conditions; a temporary drop in water pressure, the water may have a temporary reddish color caused by iron deposits, a cloudy or “milky” water appearance that is caused by undissolved oxygen in the water that will dissipate within a few minutes. These conditions do not affect the quality and safety of the water, only appearance.

When you see a testing crew in your area,avoid running tap water and washing clothes until the flushing is completed,approximately 3-5 minutes. Drive carefully around any open running hydrant,watch for Fire Department personnel, and keep children away from the openhydrants and testing crews.  

Questions regarding the fall testing programshould be directed to the Public Works Department at (630) 620-5740.

Lombard Public Works Department to Conduct Spring Hydrant Flushing

Lombard Public Works will begin the annual spring fire hydrant flushing program during the week of April 23, 2018. Over 2,700 hydrants will be flushed over the course of the following six weeks. The program is a vital part of the Village’s water pumping and water distribution system maintenance.

During flushing, each hydrant is thoroughly inspected and operated. Flow readings are taken to evaluate system capability to provide sufficient water supply. Any low flows found may indicate that a water main valve is closed or not operating properly. Flushing also scours the internal walls of the pipes and pulls fresh water into the distribution system.

The water pumping stations also benefit from hydrant flushing. As large volumes of water are moved through the system, the storage tank levels fluctuate. This allows the water operators to check Village’s pumping stations’ ability to respond to pressure fluctuations and to understand system performance during peak usage.

During nearby hydrant flushing, residents may experience the following conditions: a temporary drop in water pressure, a reddish color in water caused by iron deposits, and cloudy or “milky” water caused by undissolved oxygen that dissipates within a few minutes. These conditions do not affect the quality and safety of the water.

For discolored or cloudy water, shut off the water and wait several minutes, then run the cold water for up to a few minutes until clear. Avoid doing laundry during hydrant flushing as white clothes may become stained if the water is not properly cleared first. Wash a load of dark clothes first before doing a load of white clothes. If water pressure or flow seems low, check the faucet aerator screen for sediment. Routine flushing each morning for a few minutes is also a good practice for buildings with lead service lines.

When a flushing crew is seen nearby, it is best to avoid running tap water and washing clothes until the flushing is completed.  Drive carefully around any open running hydrant, watch for Public Works personnel, and keep children away from open hydrants.




 

Map of 2018 Hydrant Flushing


Hydrant Flushing 11x17 Progress Map