Poland Spring® is 100% natural spring water. We have numerous quality controls in place to ensure the quality and integrity of our spring water products, including: Verified testing conducted daily, weekly, monthly, and annually; Independent hydrogeological reports; Regulatory oversight; and Long-Term monitoring to verify the quality, long-term sustainability and spring profile of Poland Spring®. In fact, a recent independent investigation conducted by the law firm DLA Piper confirmed that Poland Spring® Brand 100% Natural Spring Water meets the requirements of the federal spring water identity standard. Consumers can be confident in the honesty and accuracy of the labels on every bottle of Poland Spring®. More on that investigation can be found here. For more information please refer to our Quality Report.