SALT LAKE CITY -- Crews shut a Salt Lake City road for about an hour Tuesday while they investigated a mysterious substance that turned out to be harmless.
Residents living near 2100 East and 1700 South noticed a green liquid flowing down the gutter Tuesday around noon and called 911.
Officials shut the road while Hazmat crews investigated.
They traced the green liquid to Foothill Drive and 1300 South and determined it was a harmless dye contractors use to find breaks and poor connections in pipes.
The Salt Lake Tribune reports whoever used the dye didn't properly notify city officials that the green liquid would be showing up in the water system.