On this week’s Valley Edition we learn how valley farmers are working on solutions to a problem that has a long legacy in the valley – nitrogen pollution. Not only can nitrate pollute groundwater, new research suggests it’s also a bigger contributor to air pollution than previously thought. We’ll learn why solving the problem is so difficult, and what local growers are doing to reduce their nitrogen use. We also will hear how a massive infrastructure project is nearing completion in Fresno. The new Southeast Surface Water Treatment Plant will soon be supplying the oldest parts of Fresno with drinking water. That has city officials asking for the public’s help to spot any potential issues early on. We’ll learn how the new plant was informed by lessons learned in the past. Later in the show we also talk with Harold Pierce of The Bakersfield Californian about school discipline issues in the Kern High School District, and with the author of the book “Big Hunger” who says food banks are too closely aligned with corporate interests. Finally, we talk politics with Fresno State political science professor Thomas Holyoke.