The city flushes fire hydrants each spring to ensure their reliability and remove any mineral buildup in the system. Flushing hydrants ensures good water quality throughout the city. Hydrant flushing begins at the end of April and continues through the end of May. Crews flush from 7 a.m. to 3:30 p.m., Monday through Friday. The approximate schedule for when our crews will be in your neighborhood is on the attached map.
Residents may notice discolored water for a short period after flushing. Although the water is safe for consumption, you may want to reschedule laundry. If you see discolored water, open all cold water faucets and allow them to run at the same time until the water clears. Flush out the pipes by running the laundry tub faucet or the outside faucets.
2025 Spring Flushing Zones Map(PDF, 307KB)
FAQs
Why does the city flush hydrants?
Hydrant flushing:
- Improves drinking water quality by removing sediments from the mainline through the hydrant
- Identifies any issues with hydrant and related valves
- Determines weaknesses in the water distribution system
- Identifies inadequate water volumes and pressures in the main lines
When does the city flush hydrants?
The city typically flushes in late April.
Why is my water discolored?
Tap water can sometimes change color after hydrant flushing. This is normal and safe for drinking. When we open hydrants, the water in the mainline flows out at a high velocity. This dislodges sediment particles from the pipe. The discoloration is the suspended iron and manganese particles mixing with water that has not had time to settle.
What should I do if my water is discolored?
Run water through your faucets for a few minutes to clear the pipes. Discolored water is safe for drinking but may discolor your laundry.