POTOMAC, Md. (WUSA9) --  Officials report a second water main break took place in Montgomery County on Tuesday in Potomac, Md.

According to The Washington Suburban Sanitary Commission, this water main break, which was an 8 inch water main, took place on River Road at Newbridge Drive in Potomac.

WSSC crews have turned the water off. Officials say they believe it's going to be a relatively small number of customers without water because of the size of the break.