They mentioned that, in addition to all the artificial barriers to reproduction & escape, the Indiana plant is on a watershed that ultimately empties into the Mississippi & Gulf of Mexico, so presumably introduction into the Great Lakes won't be a problem. Salmonids do exist in some of the colder Great Lakes already, however.

7ac 2015 CNBG RES FHM 2016 TP FLMB 2017 NLMB GSH L 2018 TP & 70 HSB PK 2019 TP RBT 2020 TFS TP 25 HSB 250 F1,L,RBT -206 2021 TFS TP GSH L,-312 2022 GSH TP CR TFS RBT -234, 2023 BG TP TFS NLMB, -160