|The discharge affected the dock for the Maid of the Mist boat tour.|
On a busy tourist weekend at the end of July, discoloured and foul-smelling water was emptied into the Niagara River - enveloping the dock for the landmark's popular Maid of the Mist tour boats.
Officials have blamed outdated equipment and miscommunication between employees for the incident.
|Niagara Falls straddles the border between the US and Canada|
"We have to make sure it never ever happens again," he added.
Mr Cuomo has likened the water plant involved to an old car that's in a crash.
"It's not the age of the car - you drove it into a tree," he said. "That's the problem. You drove the car into a tree. Let's discuss that first."