PFA’s have been around since the 1940s, yet recently, companies have been dealing with the aftermath of their destruction. PFA stands for poly-fluoroalkyl substances, which are man-made chemicals and the purpose for them was to fight stains, water repellents, firefighting, and other industrial applications. Although they have been phased out of production in the United States and Europe, they are still being imported and have left contaminants in our groundwater.