Federal regulators repeatedly granted appeals to remove Camp Mystic’s buildings from their 100-year flood map, as the camp operated and expanded in a dangerous flood plain.

The Department of State Health Services released records Tuesday showing the camp complied with a host of state regulations regarding “procedures to be implemented in case of a disaster.”

Flash floods surged through in the middle of the night, but many local officials appeared unaware of the unfolding catastrophe, initially leaving people near the river on their own.