Bloody Run is a creek tributary to the East Fork Des Moines River.
[5] In 2018, Chris Jones, a chemist and research engineer at the University of Iowa Institute of Hydraulic Research (IIHR), and the head of the Iowa Water Quality Information System since 2015, installed a sensing station in Bloody Run to monitor its water quality.
[7] Jones has repeatedly been threatened by Republican politicians, particularly Dan Zumbach, for his research, and left the University of Iowa on May 16, 2023, one month after his final blog post.
Zumbach's son-in-law is the co-owner of Supreme Beef, which lies just upstream of Jones' monitoring station.
[6] In September 2021, the Iowa Chapter of the Sierra Club and Trout Unlimited filed a lawsuit against the Iowa Department of Natural Resources, alleging the agency improperly approved the nutrient management plan of Supreme Beef, and that the plan had incorrect calculations of how much manure could be safely applied to fields nearby the operation.