The deadly Texas floods have brought the state's approach to land approvals, especially in flood-prone areas, under more scrutiny.

When too much rain falls for the ground to absorb, it runs downhill, pulled by gravity into streams, creeks and rivers.

Two days before flash floods on the Guadalupe River in Texas killed dozens of campers at a Christian girls summer camp, a state inspector approved operations, noting there was a written plan for responding to natural disasters.