The emergency weather alert had come early Fourth of July morning: There would be life-threatening flash flooding in Kerr County, Texas. And Camp Mystic – an all-girls Christian camp situated along the Guadalupe River – housed about 750 campers on the flood-prone site as heavy rains started pouring.

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.

Camp Mystic owners successfully appealed to the Federal Emergency Management Agency to redesignate some buildings that had been considered part of a flood-hazard zone.

FEMA removed dozens of Camp Mystic buildings from its 100-year floodplain map for Kerr County, the AP reports.