The proposed legislation would amend Section 61.206 of Title 40 of the Code of Federal Regulations to enforce a maximum individual cancer risk limit of 9.1 in 100,000 for any alternative uses of phosphogypsum. Additionally, it requires comprehensive assessments to evaluate potential negative impacts on both surface and groundwater quality due to leaching, while mandating rigorous monitoring protocols to mitigate exposure risks. This could dramatically change how materials used in public infrastructure are selected and approved, placing a stronger focus on health and environmental safety.
Summary
House Bill 4592, known as the 'No Radioactive Roads Act of 2025', mandates that the Environmental Protection Agency (EPA) revise existing regulations regarding the use of phosphogypsum in road construction. This substance, containing hazardous materials such as uranium and radium, has been prohibited by the EPA since 1992 due to the associated risk of cancer for workers and the public. The bill aims to reassess whether certain uses of phosphogypsum can be approved under strict conditions that guarantee public safety.
Contention
Notably, the bill has generated significant debate among environmentalists and industry stakeholders. Supporters argue that advancements in monitoring and safety measures could allow for controlled uses of phosphogypsum, improving infrastructure sustainability. Critics, however, express concerns about the inherent risks of reintroducing this material into public projects. They worry that no level of risk acceptable under the legislation can adequately protect workers and residents from adverse health effects associated with radioactive exposure over time.