A boil water advisory that was in effect for several neighborhoods in upper Northwest D.C. has been lifted, D.C. Water said Saturday. Following tests, the utility found that water was found safe to drink for nearly 5,000 customers in the neighborhoods of Chevy Chase D.C., Friendship Heights, Tenleytown, American University Park, Spring Valley, Cleveland Park, Woodley Park, Van Ness, Glover Park, Wesley Heights and Cathedral Heights.