A system and method scrub a vapor. In embodiments, a vacuum truck scrubber system includes a liquid vat, a first carbon canister, a second carbon canister, and a third carbon canister. The first carbon canister and the second carbon canister each contain carbon. The liquid vat is connected to the first carbon canister. The first carbon canister is connected to the second carbon canister. A vapor having contaminants is fed to the liquid vat and is introduced from the liquid vat to the first carbon canister wherein a portion of the contaminants is removed from the vapor. The vapor is introduced from the first carbon canister to the second carbon canister wherein another portion of the contaminants is removed. The vacuum truck scrubber system also includes a monitoring system for reading and recording of sample measurements in the first carbon canister, the second carbon canister and the third carbon canister.