The chemical compound Bisphenol-A (BPA) is the focus of debates concerning health issues and 5-gallon polycarbonate bottles, along with other food and beverage containers. There is no supported evidence or scientific conclusion that BPA is a risk to human health.
The potential for trace levels of BPA to migrate from plycarbonate bottles has been summarized as very unlikely and found at less than 5 parts per billion in bottles that had been stored up to 39 weeks. A person would have to drink about 85 gallons of beverages everyday for an entire lifetime to exceed the level of BPA that the US EPA has set as safe. Polycarbonate bottle studies with bottles stored at 212 degrees Fahrenheit for 6 hours or 120 degrees Fahrenheit for 10 days showed no BPA using an analytical method sensitive to 5ppb. No 5-gallon bottles in the water industry are exposed to such intense treatment. Some of the most notable studies on polycarbonate has been done by government agencies in the US, Japan, and Europe, as well as studies conducted by the Harvard Center For Risk Analysis, and the United States Academy of Sciences.