I know i be undercover with it. I did this yesterday get alot of old Taco Bell Wendys Macdonald's cups whatever i have at the time. I fill them up with coolant and or Oil. Then they hit the dumpster like im just tossing out trash.
Personally, I have no problem dumping it in the sewers but after reading how these medication leave a residue in our drinking water...I'm having second thoughts and that's why I posed the thread to see if anyone's aware of the "proper" way to dispose these chemicals.
But the truth of the matter is...I'm sure most shops dump this stuff down the drain anyways...