SEATTLE -- The King County Council wants answers about what went wrong at the West Point Treatment Plant before and after the flooding that led to millions of gallons of untreated wastewater going straight into Puget Sound.

On Monday, the council took emergency action and voted to launch an investigation into the issue.

Three days of heavy rain in early February flooded the plant with untreated wastewater. The pumps stopped working, and more than 200 million gallons of untreated wastewater ended up in Puget Sound. There were millions of gallons of raw sewage that ended up there, too.

Aside from the sewage and wastewater in the Sound, it caused a lot of damage at the plant as well. There were significant equipment and electrical failures. Crews have worked non-stop to fix the issues, but as of now many of the issues still exist and early estimates suggest it will cost more than $25 million to repair everything.

The investigative process will be led by the county council, which is an entirely separate branch of King County government than those in charge of plant management.