Below is a list of frequently asked questions. Click each dropdown to view the answers.
Below is a list of frequently asked questions. Click each dropdown to view the answers.
With over 30 years of proven experience, Charah Solutions is the industry leader in ash excavation and provides an unparalleled combination of extensive ash pond familiarity and breadth in service capabilities that includes a full suite of coal combustion residuals (CCR) Remediation & Compliance Services as well as Byproduct Recycling Services which include: ash/gypsum pond management, landfill construction & management, supplementary cementitious materials (SCMs) management & marketing, CCR landfill operations, and utility support services. Charah Solutions operates on a national scale that includes longstanding relationships with leading utility companies and independent power producers. Further, Charah Solutions has established a history of solving our customers’ most complex environmental challenges and has received numerous award recognitions for our exceptional quality, safety, and compliance record.
Charah Solutions will provide a dedicated team that will work for you to promote the use of coal combustion products (CCPs) produced at your station. We will diligently search and find opportunities that exist in the market to utilize CCPs from your station. In addition, Charah Solutions can provide beneficiation technology solutions in situations where the coal combustion residuals (CCRs) need processing and quality improvement to meet market specifications. Our experience and expertise in processing and marketing CCPs will maximize the value of your byproduct revenues.
Yes, Charah Solutions is experienced in managing large disposal sites and routinely handles millions of tons annually of coal combustion residuals (CCRs). We can also handle the design and installation needs for drainage, erosion control, synthetic liners and leachate collection systems, and perform permit record keeping for landfill sites. Compliance with the new CCR requirements can be assured with a Charah Solutions-designed operating plan that addresses each specific area of the landfill operation.
A structural fill is an engineered fill designed to improve land for an intended end use. Typically, the land is unusable for the intended end use unless fill material is imported to raise the elevation to fit the desired design. Due to its homogenous particle size, predictable geotechnical characteristics, low unit weight, relatively high shear strength and ease of handling and compaction, coal ash is an ideal material for such fills. Charah Solutions is highly experienced in the use of coal ash, placing it and compacting it in accordance with approved ASTM design criteria.
Charah Solutions completed a coal ash structural fill project at Asheville (North Carolina) Regional Airport. Click here to learn more about the construction process and components of a fully lined structural fill.
Charah Solutions offers one-stop services for your entire portfolio of power plant decommissioning, demolition and remediation projects through our Environmental Risk Transfer (ERT) services. Charah Solutions is able to provide innovative solutions to our customers that are now experiencing an increased need to retire and decommission older, un-utilized, or non-profitable generating assets while maximizing the value of the assets and eliminating environmental liabilities. This service enables our customers to potentially transfer an environmental liability from their balance sheet, while receiving maximum value of the assets along with contractual indemnification protection against regulatory changes, third party citizen suites, and environmental pollution. Charah Solutions has the financial resources to support the transaction, we have the skill to effectively manage the environmental risk as well as the team that can safely remediate your site, all while also substantially lowering your cost model. Charah Solutions reviews each site’s particular liabilities followed by a turnkey proposal that includes a remediation action plan and a re-purpose plan for the property. Our range of services for Environmental Risk Transfer and post-closure obligations include the following capabilities:
• Management of the entire project from site purchase to remediation and re-development.
• Remediation of the coal combustion residuals (CCR) ponds and landfills.
• Marketing of coal combustion products (CCPs).
• Demolition services to bring down the power plant structures and perform asbestos abatement.
• Relationships to assist in maximizing the scrap recovery of materials and equipment.
• Third party environmental services to perform due diligence prior to legal transfer of the property.
• Insurance relationships to assist with the assessment of risk, and utilize the best methods to maximize insurance protection.
• Design engineering for site remediation and third party CQA/CQC testing services.
• Assess site re-development potential and help manage the re-development process.
Yes. Our additional utility support services include limestone grinding, silo O&M, ash transportation, FGD and WWTS O&M, leachate disposal, OTR hauling, DBO projects, coal handling and more.
Our proprietary EnviroSource fly ash beneficiation technology utilizes a thermal beneficiation process to achieve a higher quality material that meets ATSM and state specification requirements for use in the production of green concrete. The EnviroSource ash beneficiation technology recycles previously unusable fly ash using a thermal process to reduce the loss on ignition (LOI) of the ash. This improves fly ash quality so that significantly more tons of previously impounded fly ash can be recycled and marketed for beneficial reuse as a substitute for Portland cement, one of the leading contributors to greenhouse gases in the U.S. In addition, as many state and local regulations mandate that a percentage of the ash in pond and landfill closure projects be sustainably recycled, EnviroSource technology helps utility partners meet these regulations.
With the functionality to process both wet and dry fly ash, the EnviroSource technology can be installed at both operating and non-operating power plants, regardless of whether the fly ash is current production, or legacy ash stored in ponds or landfills. Specifically, the technology has a significantly lower cost profile, an efficient footprint with self-contained environmental controls that can be deployed in months versus years, and a modular design that can be scaled up or down to increase production based on market demand.
Our EnviroSource fly ash beneficiation technology offers distinguishable benefits compared to alternative technologies in many ways as described below:
• Significantly lower cost profile
• Cost-effective installation and operation
• Efficient footprint with self-contained environmental controls
• Can be deployed in weeks versus years
• Versatile design and scalability allow for production of 40,000 to 200,000 tons per year
• Equipment can be used to meet demand without requiring high volumes for cost effectiveness or self-sustaining operation
• Can be installed at operating power plants, non-operating power plants or off-site
• Enables the processing of kiln dust to remove mercury for emissions regulations compliance.
Its most impressive distinction is its ability to deliver all of these benefits at a significantly lower cost profile than competing technologies, combined with an efficient footprint.
We offer quality Class C fly ash, Class F fly ash, cement raw feed materials, MultiCem™ slag cement, MultiPozz™ pozzolan, bottom ash, gypsum and Integrated Gasification Combined Cycle (IGCC) slag. These materials are distributed through our MultiSource® materials network of nearly 40 nationwide locations with international sourcing and distribution as well as a national network of barge, rail and truck services which ensures a continuous and reliable supply of supplementary cementitious materials (SCMs) for ready mix concrete producers and other customers throughout the United States.
The main chemical components of fly ash are silica, alumina, iron and calcium oxides; all identical constituents of Portland cement. These common components contribute to added strength and durability of concrete.
Concrete manufactured with quality fly ash demonstrates the following technical advantages: added long term strength, durability, lower permeability, improved resistance to sulfate attack, increased pumpability and workability, and improved finish product quality. Additionally, concrete with fly ash is less expensive and more sustainable.
Our MultiPozz™ pozzolan, manufactured using our patented grinding technology, extends our complete portfolio of supplementary cementitious materials (SCMs), providing a continuous, reliable supply of pozzolan to concrete producers and other customers. It is produced by Charah Solutions’ proprietary grinding technology by converting natural pozzolans found in the earth, such as volcanic ash, into a highly desirable input for the production of Portland cement as it provides strength, durability, improved finish, and consistent performance in concrete. Because the supply of quality SCMs such as fly ash is limited in some regions of the country, the production of MultiPozz pozzolan, which meets ASTM and state specifications, is generating strong interest among concrete producers.
MultiPozz pozzolan is distributed through Charah Solutions’ unique MultiSource® materials network of nearly 40 nationwide sourcing locations which ensures a continuous and reliable supply of supplementary cementitious materials (SCMs), including quality Class C fly ash, Class F fly ash, cement raw feed materials, MultiCem™ slag cement, MultiPozz™ pozzolan, bottom ash, gypsum and Integrated Gasification Combined Cycle (IGCC) slag, for ready mix concrete producers and other customers throughout the United States.
Whether it is industrial raw materials for production use or quality cement manufacturing materials, Charah Solutions has a broad materials lineup and the technical expertise to source exactly what is needed. We provide the materials, backed by strong sales and technical support, efficient inventory management, customized options and door-to-door logistics covering every point on the globe.
Our industrial raw materials lineup includes a broad range of materials from iron source to industrial slag to iron rich materials (IRM), mill scale, steel slag, iron ore, natural gypsum, synthetic gypsum and abrasives. We also provide cement manufacturing raw materials from alumina source to fly ash and bottom ash to bauxite, clay and alumina slag, granulated blast furnace slag (GBFS), fly ash, silica fume and pozzolan.
In addition, Charah Solutions offers quality Class C fly ash, Class F fly ash, cement raw feed materials, MultiCem™ slag cement, MultiPozz™ pozzolan, bottom ash, gypsum and Integrated Gasification Combined Cycle (IGCC) slag byproducts for use in the concrete industries through our MultiSource® materials network distribution system of nearly 40 nationwide sourcing locations with international sourcing and distribution locations.
The Charah Solutions Environmental, Social and Governance (ESG) Report outlines all of our ESG goals which are set and tracked on an annual basis and is structured using the respected and accepted guidelines of the internationally recognized Sustainability Accounting Standards Board (SASB) and UN Sustainable Development Goals (SDGs). Our ESG actions are the blueprints for achieving a cleaner environment and our dedication to environmental responsibility, investing in our employees, corporate diversity, and giving back to the community have always been key value drivers at Charah Solutions. Charah Solutions is truly one of America’s best examples of resource conservation and recovery through the beneficial recycling of coal ash, ash impoundment closure services, the shutdown of coal-fired power plants, and the remediation and redevelopment of land. We are in the business of solving the power generation industry’s most complex environmental challenges, and we continue to lead by example.
As a sustainability leader in utility services for over 30 years, Charah Solutions is dedicated to preserving our natural resources in an environmentally conscious manner through environmental and remediation services, the recycling of ash, and our Environmental Risk Transfer (ERT) services for the betterment of the planet, the communities in which we operate, and our customers. Our sustainability efforts conserve virgin resources and water, reduce greenhouse gases, and decrease landfill disposal, all while providing essential recycled-products that contribute to the growth of our economy and land remediation. Since 2020, Charah Solutions has prevented over 4.79 million tons of CO2 from entering the atmosphere through the beneficial use of ash and the shutdown of coal-fired power plants.
The Charah Solutions ESG Report can be downloaded at https://charah.com/sustainability/.