The Ingredion plant has four Whelen WPS-3016 units that are located kind of at the four cardinal direction points on the plant grounds. There's one on the north end
by two large white storage tanks, one on the west end
in the railyard area, one at the south end
by the plant entrance, and one on the east end
by a parking lot pretty close to South Archer Road. It seems like they're all
painted a really dark charcoal gray color, which actually makes them look somewhat menacing IMO.