and how cavelier folks are with hazardous chemicals...
I work with hazardous chemicals and the EPA on a daily basis so I can relate. Heard a story just yesterday of a guy who was taking any old paints and other solvents and just stockpiling them. No one knew what he was doing with them. Well, he was slowly, routinely over the years, discarding them down a system of pvc pipes under his garage, that subsequently made it into a nearby river. I couldn't believe that. But I do believe the guy is still incarcerated.
Must have been dumping a whole lot!!!
The shop I owned was registered, and I can say that we never spent over 250.00 a year on liquid waste disposal, and that was the minimum charge. They would take everything, solvents, paints, soluble oils, motor oils, cutting oils... That was pretty inexpensive. When I shut down I had an environmental done and came up clean

I just had to cover my backside, cause these things have a tendency to pop at later dates.