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Wastewater Containing Raw Sewage Leaks Across Border Into Nogales Wash

Wastewater containing raw sewage has been spilling over the border into the Nogales Wash. 

The wastewater is from the Los Alisos Wastewater Treatment Plant in Nogales, Sonora, and four out of the five water pumps at the plant are not functioning. Lori Kuczmanski with the U.S. Section of the International Boundary and Water Commission says the commission is providing technical assistance to Mexico and that the pump manufacturer inspected them.

“The pumps are old, they are about five years old, and the inspection revealed that they’re worn out due to excessive grit and they’re also not being maintained. So the pipeline can’t handle the water and it’s overflowing into the Nogales Wash.”

Kuczmanski says nearly 180 gallons of wastewater are flowing per minute during peak usage times. She is unsure when the leak will be fixed.

Chloe Jones is a senior at the Walter Cronkite School of Journalism and Mass Communication focusing on multimedia digital storytelling, expecting to graduate in May 2019. Jones also has a minor in Spanish and a minor in philosophy. She is passionate about journalism because she knows how important it is to give a voice to those who need to be heard. Jones joined the KJZZ team as an intern in September 2018.Jones was raised right here in Tempe, Arizona. In her free time, she enjoys teaching and practicing yoga, running outside (when it’s not too hot) and enjoying the outdoors. If she is not doing any of those things, she is probably taking a nap after binge-watching Netflix.