Hill Country SPCA executive director Andrew Davis tells PEOPLE about helping animals and pets after the July 4 flooding in Central Texas, including the amazing rescue of a dog who survived the floodin

The head of FEMA’s Urban Search and Rescue branch, which runs a network of teams stationed across the country that can swiftly respond to natural disasters, resigned on Monday.

Heavy rains caused multiple rivers in Central and North Texas to swell by more than 20 feet. Search efforts for victims of the July Fourth floods were suspended until Monday.