Non-Hazardous Waste Disposal, Contaminated Soil Cleanup, Environmental Remediation Services. At Clean Earth, we’re committed to finding faster, smarter and greener solutions to solve various environmental challenges. As one of the nation’s largest and most experienced processors of contaminated soil, dredge sediments and hazardous and non-hazardous waste, Clean Earth maintains a tireless commitment to ensuring that every pound of material we touch is treated and managed properly and responsibly. In fact, approximately 98% of the material we process is beneficially reused.