NOGALES, AZ (Tucson News Now)- As we get closer to the monsoon rains, the international sewage line that runs under the border, through Nogales is once again a concern.
Now Arizona's two senators are demanding action to deal with the pipeline, called the International Outfall Interceptor (IOI).
The IOI runs under the border, just west of the Morley Gate Port of Entry at Nogales.
It carries raw sewage from Mexico into Nogales, Arizona.
Now the long-brewing issue over it might finally be solved because a of the senators' letter.
We've seen what happens when the sewage line from Mexico to the United States is overwhelmed.
Contaminated water flows north, over the border, causing huge headaches for the city of Nogales.
It happens regularly.
Everyone agrees, the line that runs under the Nogales Wash through the heart of the city needs upgrades, rehabilitation.
But roadblocks have backed things up.