How should one safely dispose of chemicals like dichloromethane, toluene or acetone that were mixed with water?

Is the water contaminated to a degree that it needs also treatment?

For example dichloromethane water mix can't be burned, as DCM may form phosgene and the water layer shouldn't be poured down the drain because it contains some of the DCM. What should be done, wait for it to evaporate?

  • 3
    $\begingroup$ Collect in secure labelled containers and store until a specialist contractor can remove them. $\endgroup$
    – Waylander
    Sep 25 at 11:32

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