(Pierre, SD) — Members of the Public Utilities Commission are asking tough questions about the Navigator CO2 pipeline about its application in South Dakota. Wednesday marked the second day of testimony as some commissioners voiced concerns about approving the pipeline before new safety regulations are announced next year. The PUC also wants to know why Navigator isn’t releasing the diameters of the pipeline route. According to Navigator, thirty-percent of South Dakota landowners who are on the path of the pipeline have signed easements for the project. A portion of the rest who have not signed have reported receiving eminent domain letters. More testimony continues on Thursday.