EGLE and the USEPA conducted this study to assist in compliance efforts undertaken by the chrome plating industry. A number of platers in Michigan have had to invest significant resources to install pretreatment systems to remove PFOS from their process wastewater, conduct cleaning, and replace equipment. For the study, EGLE worked with 11 chrome platers across the state to sample fume suppressant products and process wastewater (after pretreatment for metals and pH but prior to any pretreatment for PFOS and before discharge to the municipal sanitary sewer). These chrome platers agreed to participate in the study on a voluntary basis to provide valuable information to the plating industry. The USEPA provided its analytical expertise to identify and quantify PFAS, both legacy and novel, in fume suppressants and effluent.