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Brown or Yellow Cold Water

If your water is discolored, run the cold water for a few minutes and it should clear up. 

Light yellow to dark brown water is typically caused by a disturbance of pipeline sediments in the water main. The discoloration is caused by naturally occurring particles and minerals that have settled over time and are found in all water systems.   Any of the following circumstances may have caused flow reversals in the water mains and sediment to be disturbed:

  • The discolored water may be due to the planned cleaning of the water main to remove pipeline sediment in your area.
  • A nearby water hydrant may have been knocked over due to a vehicle collision or may be in use to fight a fire.
  • There may be some pipeline repair work (or construction activity) in the area and some valves may have been closed for this work.

Despite its appearance, this does not indicate that the water is unsafe or that the integrity of the water main is compromised. A disinfectant residual is maintained at all times to ensure that the water is safe for household use, including cooking and drinking. For aesthetic reasons, you should avoid doing laundry until the water clears up.  If you notice discolored water in your home or business - run the water at the hose bibs outside for a few minutes, then run the cold water inside until the water clears.  For aesthetic reasons, you should avoid doing laundry until the water clears.