One of our most precious natural resources is our drinking water. We can survive for up to a month without food but only around a week without water1. Our water departments across the nation have, for many years, consistently provided high quality drinking water. Because of this we often take safe drinking water for granted. Unfortunately, at the point of use the high quality water that was sent from the water department may have been compromised by a cross connection with a non-drinking water source. This cross connection can cause sickness or worse.