Coal ash contractor selection for coal ash pond cleanup is a highly specialized process that involves careful evaluation of expertise, compliance with regulations, environmental safety, and cost-effectiveness. Here are some steps a utility company should follow:
Define Project Scope and Requirements
Understand the Remediation Goals
Clarify if the goal is “close in place” or full excavation and removal. This will greatly influence project specifications, including how pond dewatering, water treatment, and soil disposal will be approached.
Regulatory Compliance
Ensure the project complies with relevant environmental regulations, such as the U.S. EPA’s Coal Combustion Residuals (CCR) rule, Clean Water Act, and any relevant state-level rules and regulations.
Pre-Qualification
Experience in Coal Ash Management
Contractors should have demonstrated experience in coal ash pond cleanup or similar remediation projects. This includes experience with hazardous waste management, pond closures, environmental assessments, and compliance with regulatory effluent guidelines. Coal ash pond remediation usually involves two major elements: 1) impacted soil excavation and removal, and 2) pond water decanting / dewatering and subsequent treatment of the removed pond water.
References & Case Studies (Direct Experience)
Review previous projects, ask for references, and evaluate the outcomes. Check if they have completed projects on time and within budget. Ask for customer references for past completed projects.
Evaluation Criteria
Technical Expertise
The contractor should have knowledge in hydrogeology, environmental remediation, geotechnical engineering, and waste containment systems. Their ability to handle coal ash safely is crucial.
Licenses and Certifications
Verify that the contractor holds necessary licenses and environmental certifications. They should also have workers with relevant OSHA certifications and expertise in hazardous waste handling.
Health and Safety Record
Review the contractor’s safety history, including OSHA records, Experience Modification Rating (EMR), and safety performance in past projects.
Permitting Knowledge
Contractors must demonstrate expertise in acquiring permits and maintaining compliance throughout the project, especially regarding water quality standards and air emissions from dust control.
Liability and Insurance Coverage
Ensure the contractor has sufficient insurance, including liability and environmental risk coverage. This protects the utility company in case of accidents, spills, or other unforeseen issues. Also consider requiring a performance bond to ensure that the project will be completed to the agreed-upon specifications.
Ongoing Oversight
Monitoring & Reporting
Once the contractor is selected, set up a strong monitoring and reporting system. Require regular updates on project progress, environmental impact, and compliance status.
Independent Audits Engage third-party environmental experts or auditors to verify that work is being done according to the contract and in compliance with regulations.
By carefully following these steps, the utility company can select a contractor who will execute a coal ash pond cleanup safely, efficiently, and in compliance with all relevant regulations.