After more than 50 years of biosolids use in Yuma, the future of AgTech’s operation on state trust land is now deeply uncertain.

This is the second part of “The Cost of Waste,” a three-part series exploring the debate over biosolids in Yuma County, where residents raise concerns about possible health and environmental impacts while officials and workers defend the practice’s safety.

This is the first part of “The Cost of Waste,” a three-part series examining what biosolids are, how they came to Yuma County, what is known about potential health concerns and what solutions may come next.