Highland Hills Sanitary District

News and Events


Below you will find general information pertaining from District regarding any emergency situations, hydrant flushing, special meetings etc.


Hydrant Flushing Operations

The hydrant-flushing program is very important to the maintenance of the District’s water distribution system. Each year, our technicians systematically open hydrants throughout the District to allow water to flow at a high velocity through the distribution mainlines. This operation serves the following purposes:

 

· Enhances water quality by removing sediments from inside the mainline and flushing them out through the hydrant.

· Identifies malfunctions of the hydrant and related valves.

· Helps determine weaknesses in the water distribution system.

· Identifies inadequate water volumes and pressures in the mainlines.

· Helps determine fireflows at the hydrant.

 

You may encounter the following conditions during hydrant flushing operations:

· A temporary drop in the water pressure to your home or business.

· Rusty brown, or cloudy water. (Discolored water is not harmful. These conditions will subside in a few hours after the flushing is completed.)

 

Helpful Hints to Remember:

· Before the flushing operation begins:

-Fill a bottle or clean, plastic milk jug with fresh tap water and store it in the refrigerator to use for drinking and cooking.

-Do NOT wash white or light-colored laundry during the flushing operations.

· After the flushing operation is completed:

-Open the cold water faucets and let the water flow until it is clear. Turn off the faucets.

-Open the hot water faucets and let the water flow until it is clear. Turn off the faucets.

-When both hot and cold water are clear, the water is ready for use as normal.

-Check the faucet screens for trapped particles.

-Wash a load or two of dark-colored clothes first.

FAQ’s

Why is hydrant flushing necessary?

It enhances water quality by removing sediments from inside the mainline and flushing them out through the hydrant; identifies malfunctions of the hydrant and related valves; helps determine weaknesses in the water distribution system; identifies inadequate water volumes and pressures in the mainlines and helps determines fire flow adequacy.

 

What should I do when District crews are flushing hydrants in my area?

· Mainly, avoid using the dishwasher, washing machine. Don’t turn on the faucets (hot or cold). Wait until the operation is completed.

· If you are driving in the work zone, please drive carefully.

Why does my water look rusty or cloudy after hydrant flushing?

When a hydrant is opened, the water in the mainline will flow out at a high velocity. This creates a scouring action in the pipe and dislodges fine sediment particles that have accumulated in the pipe. The fine sediment mixes with the water, turning the water a cloudy or rusty brown color. This mixture is discharged out of the hydrant. There is no health hazard associated with the discolored water. Remember, after the hydrant flushing operation, let your water clear a few hours before you use it.

 

Who do I call for more info?

For additional information about water quality, please call the Highland Hills district office, (630) 627-1930.