How are sites selected for cleanup?
Suspected sites are investigated (Preliminary Site Assessment or PSA) to determine if hazardous waste is present and a significant threat to public health or the environment exists. See PSA Fact Sheet for more information. The sites which are deemed to require remediation (Class 2 sites) are then prioritized based on the degree of impact to human health and the environment. A site is given a priority of 1, 2, or 3, with sites ranked 1 receiving highest priority for cleanup.
