ATLANTA (AP) — A government survey has found at least one violation in nearly 80 percent of public pool and hot tub inspections from 2013 in five states.

The Centers for Disease Control says it analyzed more than 84,000 inspections of nearly 49,000 public venues in Arizona, California, Florida, New York and Texas, the five states with the most public pools.

The CDC says 1 in 8 inspections resulted in immediate closure because of serious health and safety violations. It says 1 in 5 kiddie pools were shut down.

The CDC says the most common violations involved improper pH levels, safety equipment and disinfectant concentration. The agency says nearly a third of local health departments don't regulate or inspect public pools.

It says swimmers should be cautious before entering the water.