Stigmatized is not a material fact that must be disclosed in the transaction of real property
http://le.utah.gov/xcode/Title57/Chapter1/57-1-S37.html
“Stigmatized” means:
(a) the site or suspected site of a homicide, other felony, or suicide;
(b) the dwelling place of a person infected, or suspected of being infected, with the Human Immunodeficiency Virus, or any other infectious disease that the Utah Department of Health determines cannot be transferred by occupancy of a dwelling place; or
(c) property that has been found to be contaminated, and that the local health department has subsequently found to have been decontaminated in accordance with Title 19, Chapter 6, Part 9, Illegal Drug Operations Site Reporting and Decontamination Act.