LAUREL, Md. - Montgomery County residents who have noticed discolored tap water are being reassured by the Washington Suburban Sanitary Commission that their drinking water is safe.
WSSC says the discoloration has been caused by a spike in manganese, a naturally occurring mineral in the Potomac River.
Experts say they've noticed more decaying leaves and other material floating in the Potomac River this year and it may be caused by the number of severe storms this summer.
In response, WSSC says it has changed its treatment plan and has allowed more manganese into the water.
You can read more from WSSC about the discolored water here.