I don't think Univar gets acid (by rail anyway). The odd tankers I've seen for them in the last few years are all placarded class 3 flammable liquids, usually petroleum distillates or toluene. They used to get quite a variety of hazmats in the 90's and earlier. In fact all of the chemical customers I'm familiar with in New England have had a similar dwindling in both variety and frequency of shipments in the last 15-20 years, with the possible exception of Safe Handling in Auburn ME.
The "off topic" light is flashing so I'll stop flapping my gums now...