Curiously enough, when I was heading to War Paint International, in salem, the indoor field, i noticed a hydro testing facility. Couldn't give you the name but i know its on the same street, a few blocks north.
Also, you may want to ask around any scuba diving circles you know of in the area. They have to do the same thing.
Winners don't try, winner's get the job done then go home and f*** the prom queen