A U.S. Coast Guardsman pilots a boat during a joint oil spill response exercise on the Cooper River in Charleston, South Carolina, June 13, 2024. The two-day exercise tested and evaluated interagency communications, response plans, and responders’ actions during a simulated oil spill scenario. (US Air Force photo by Airman Nahaku Takahashi)

U.S. Coast Guard Petty Officer 2nd Class Gordon Walker surveys the surrounding area during a joint oil spill response exercise on the Cooper River in Charleston, South Carolina, June 13, 2024. This exercise provided an opportunity for the Coast Guard and partners to validate existing protocols, review capabilities and identify gaps within existing contingency plans. (US Air Force photo by Airman Nahaku Takahashi)

A local South Carolina agency deploys an oil containment boom during a U.S. Coast Guard-led joint oil spill response exercise on the Cooper River in Charleston, South Carolina, June 13, 2024. The two-day exercise tested and evaluated interagency communications, response plans, and responders’ actions during a simulated oil spill scenario. (US Air Force photo by Airman Nahaku Takahashi)

A local South Carolina agency deploys an oil containment boom during a U.S. Coast Guard-led joint oil spill response exercise on the Cooper River in Charleston, South Carolina, June 13, 2024. The two-day exercise tested and evaluated interagency communications, response plans, and responders’ actions during a simulated oil spill scenario. (US Air Force photo by Airman Nahaku Takahashi)

A U.S. Coast Guardsman checks nautical equipment aboard their boat during a joint oil spill response exercise on the Cooper River in Charleston, South Carolina, June 13, 2024. The two-day exercise tested and evaluated interagency communications, response plans, and responders’ actions during a simulated oil spill scenario. (US Air Force photo by Airman Nahaku Takahashi)

U.S. Coast Guardsmen prepare to get underway for a joint oil spill response exercise on the Cooper River in Charleston, South Carolina, June 13, 2024. This exercise provided an opportunity for the Coast Guard and partners to validate existing protocols, review capabilities and identify gaps within existing contingency plans. (US Air Force photo by Airman Nahaku Takahashi)

U.S. Coast Guard Lt. Catherine Morris, acting command center chief, receives a call at a simulated command post while participating in a joint oil spill exercise in Charleston, South Carolina, June 13, 2024. The two-day exercise tested and evaluated interagency communications, response plans, and responders’ actions during a simulated oil spill scenario. (US Air Force photo by Airman Nahaku Takahashi)

A U.S. Coast Guardsman takes notes at a simulated command post while participating in a joint oil spill exercise in Charleston, South Carolina, June 13, 2024. This exercise provided an opportunity for the Coast Guard and partners to validate existing protocols, review capabilities and identify gaps within existing contingency plans. (US Air Force photo by Airman Nahaku Takahashi)

Participants in a U.S. Coast Guard-led joint oil response exercise discuss logistics at a simulated command post in Charleston, South Carolina, June 13, 2024. The two-day exercise tested and evaluated interagency communications, response plans, and responders’ actions during a simulated oil spill scenario. (US Air Force photo by Airman Nahaku Takahashi)

U.S. Coast Guard Lt. Michael Allen, Chief of the Sector Charleston Incident Management Division, briefs local media members during a joint oil spill response exercise on the Cooper River in Charleston, South Carolina, June 13, 2024. This exercise provided an opportunity for the Coast Guard and partners to validate existing protocols, review capabilities and identify gaps within existing contingency plans. (US Air Force photo by Airman Nahaku Takahashi)