Is there any methods to remove the contaminated waste lubricating oils from groundwater? If there is, how long will it take to completely remove the oil from the water which uses for drinking?
Just to add that if you want to remediate hydrocarbons in groundwater it is essential to remove the free product by a physical separation process such as skimming the oil from a recovery well ( with or without drawdown of the water table) before using a chemical or biological method to remediate the dissolved and residual hydrocarbons.