This T-128 is located at Porter Ave and Dickinson Rd in Chesterton. Porter county did a special test on 7/11//14 because they're awesome...no, actually it was due to several reports of sirens not working during the regular monthly test. There are 55 sirens in Porter county. They are tested on the 1st Tuesday of the month at 11AM.
See list.
http://sirens.pcema.org/
https://www.youtube.com/watch?v=e-WlP0kYuFE