Who is primarily responsible for verifying on-site BMP performance during construction?

• A. Plan reviewer
• B. Field inspector
• C. Contractor
• D. Owner

Answer: (B)

Field inspectors are the on-site professionals charged with watching BMPs as construction progresses, ensuring they’re installed correctly and functioning as designed. Their role is to verify performance in real time, check that sediment controls, outlet protections, stabilized entrances, and other measures meet the permit and SWPPP requirements, and document any deficiencies. They’re the ones who observe field conditions, confirm ongoing compliance, and require corrective actions when BMPs aren’t performing properly. This on-site verification is essential because the design plan reviewer isn’t there on the ground daily, and while a contractor implements the BMPs, the inspector ensures they are applied correctly and remain effective during construction. The owner is ultimately responsible for the project but does not perform the routine on-site verification, and plan reviewers focus on approving the design rather than monitoring daily field performance. Therefore, the primary responsibility for verifying on-site BMP performance during construction lies with the field inspector.