It was about 1 a.m. on the Fourth of July when the facilities manager at a central Texas summer camp saw water from the Guadalupe River steadily rising amid a deluge of rain. Aroldo Barrera notified his boss, who had been monitoring reports of the storms approaching Presbyterian Mo-Ranch Assembly, a recreation destination where an intercultural youth conference had been called off early just hours earlier. Despite an absence of warning by local authorities, camp officials acted quickly on their own, relocating about 70 children and adults staying overnight in a building near the river.