Undercover Boss: Season 9, Episode 4

9 - 4: Clean Harbors

When Alan S. McKim, Chairman and CEO of Clean Harbors, gets down and dirty to see if his company needs some cleaning up, he must face the challenges of a confined space while treating the inside of a dirty tank at a re-refinery that processes waste oil.

Clean Harbors is the leading environmental and industrial service provider and largest hazardous waste disposal company in North America, and it is a recognized leader in environmental emergency response services. The business provides a broad range of services, and maintains a vast network of service centers and waste management, treatment, disposal and recycling facilities. Publicly traded on the NYSE, Clean Harbors was founded by Alan S. McKim in 1980 as a four-person tank cleaning business.