First figure out what type of paint it is. (Latex or Oil-based) If it's a latex based paint, you can let it dry to a solid and then throw it in with the regular trash.. Leave the lid off for an extended period of time or add kitty litter or some other type of hardener to speed up the process. If it's oil-based then it is considered hazardous waste and must be taken directly to the landfill for proper disposal.
If the paint dry or empty you can put the can with your garage
Area close by to the scales just ask the ladies at scales
They accept them there.
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