I work in a Powder Coating Facility that paints Roof racks and luggage racks for cars....but since the metal is dirty and oily we have a pre-treatment system....I maintain the pre-treatment system making sure all of our chemicals stay on point and the production line doesn't crash...and our waste water is going out to the city right....I'm only getting the Waste Water experience so I have that to go with my certificate in the field so I can work for the city or a larger company in a couple years....gotta crawl before you walk...