If it was a boatyard, particularly one used for repair or rebuilding older boats, they’d probably have a process for every repair job. As each boat came in, it would be one team’s job to remove all the old ballast, and they’d probably have their own “spot” for doing it, near the area of the beach where the boats were pulled out of the water (so they didn’t have to move the now very-bouyant and difficult to control hull all that far to get it beached), but not where it would be a hazard to boats being re-launched.