WHAT'S CAUSING IT?

An increase in organic matter, such as algae and decaying leaves, entered the drainage basin and has worked its way downstream the Mississippi River.

WHERE IS IT A PROBLEM?

Officials do not yet know the extent of the problem, but it could affect the entire Minneapolis service area, which includes: Minneapolis, Golden Valley, Crystal, New Hope, Columbia Heights, Hilltop, and portions of Bloomington and Edina as well as the Minneapolis/St. Paul Airport.

WHEN WILL IT BE FIXED?

There is no concrete timeline yet, but officials estimate about two weeks.