Charah Solutions, Inc. provides environmental and maintenance services to the power generation industry in the United States. The company operates in two segments, Environmental Solutions; and Maintenance and Technical Services. The Environmental Solutions segment offers remediation and compliance services, including development, construction, and management of landfills for coal-fired power generation facilities, and new and existing ash ponds; and active pond management services, such as clean closure, cap-in-place, and design and construction of new ponds. This segment also sells recycling of recurring and contracted volumes of coal-fired power generation waste byproducts comprising bottom ash, fly ash, and gypsum byproducts for the use in various industrial purposes. The Maintenance and Technical Services segment provides fossil services, including coal ash management, silo management, on-site ash transportation, landfill management, and capture and disposal of ash byproducts, as well as staffing solutions for coal-fired power generation facilities; and manages combustion byproducts comprising bottom ash, as well as disposal of flue gas desulfurization gypsum, Pozatec/fixated scrubber sludge, and fluidized bed combustion fly ash. This segment also offers nuclear services consisting of routine maintenance, outage services, facility maintenance, and staffing solutions for nuclear power generation facilities. Charah Solutions, Inc. was founded in 1987 and is headquartered in Louisville, Kentucky.