GAC and RO Water Filtration System Pilot Study Sampling Results The N.C. Department of Environmental Quality and Chemours tested granular activated carbon (GAC) systems installed at private residences in the Chemours Fayetteville Works area beginning in 2018 for a period of one year. Results from the study showed GAC systems to be effective at removing GenX and other PFAS from the water if properly maintained. GAC Sampling Data Department staff tested the untreated (before the filter) and treated (after passing through the filter) well water approximately every two weeks during this time. The GAC Pilot Study included six test sites for one year. (Note: a homeowner at one site left the study before the end of the study period.) Samples were collected at each site for 33 per- and polyfluoroalkyl substances or PFAS compounds. Sampling Site 30 - collected 5/3/18, 5/16/18, 5/30/18, 6/13/18, 6/27/18, 7/11/18, 7/26/18, 8/8/18, 8/22/18, 9/05/18 and 10/03/18 Sampling Site 48 - collected 5/3/18, 5/16/18, 5/30/18, 6/13/18, 6/27/18, 7/11/18, 7/26/18, 8/8/18, 8/22/18, 9/05/18 and 10/03/18 Sampling Site 71 - collected 5/3/18, 5/16/18, 5/30/18, 6/13/18, 6/27/18, 7/11/18, 7/26/18, 8/8/18, 8/22/18, 9/05/18 and 10/03/18 Sampling Site 75 - collected 12/20/17, 2/13/18, 5/3/18, 5/16/18, 5/30/18, 6/13/18, 6/27/18, 7/11/18, 7/26/18, 8/8/18, 8/22/18, 9/05/18 and 10/03/18 Sampling Site 77 - collected 3/28/18, 4/11/18, 5/3/18, 5/16/18, 5/30/18, 6/13/18, 6/27/18, 7/11/18, 7/26/18, 8/8/18, 8/22/18, 9/05/18 and 10/03/18 Sampling Site 79 - collected 5/3/18, 5/16/18, 5/30/18, 6/13/18, 6/27/18, 7/11/18, 7/26/18, 8/8/18, 8/22/18, 9/05/18 and 10/03/18
GAC and RO Water Filtration System Pilot Study Sampling Results The N.C. Department of Environmental Quality and Chemours tested granular activated carbon (GAC) systems installed at private residences in the Chemours Fayetteville Works area beginning in 2018 for a period of one year. Results from the study showed GAC systems to be effective at removing GenX and other PFAS from the water if properly maintained. GAC Sampling Data Department staff tested the untreated (before the filter) and treated (after passing through the filter) well water approximately every two weeks during this time. The GAC Pilot Study included six test sites for one year. (Note: a homeowner at one site left the study before the end of the study period.) Samples were collected at each site for 33 per- and polyfluoroalkyl substances or PFAS compounds. Sampling Site 30 - collected 5/3/18, 5/16/18, 5/30/18, 6/13/18, 6/27/18, 7/11/18, 7/26/18, 8/8/18, 8/22/18, 9/05/18 and 10/03/18 Sampling Site 48 - collected 5/3/18, 5/16/18, 5/30/18, 6/13/18, 6/27/18, 7/11/18, 7/26/18, 8/8/18, 8/22/18, 9/05/18 and 10/03/18 Sampling Site 71 - collected 5/3/18, 5/16/18, 5/30/18, 6/13/18, 6/27/18, 7/11/18, 7/26/18, 8/8/18, 8/22/18, 9/05/18 and 10/03/18 Sampling Site 75 - collected 12/20/17, 2/13/18, 5/3/18, 5/16/18, 5/30/18, 6/13/18, 6/27/18, 7/11/18, 7/26/18, 8/8/18, 8/22/18, 9/05/18 and 10/03/18 Sampling Site 77 - collected 3/28/18, 4/11/18, 5/3/18, 5/16/18, 5/30/18, 6/13/18, 6/27/18, 7/11/18, 7/26/18, 8/8/18, 8/22/18, 9/05/18 and 10/03/18 Sampling Site 79 - collected 5/3/18, 5/16/18, 5/30/18, 6/13/18, 6/27/18, 7/11/18, 7/26/18, 8/8/18, 8/22/18, 9/05/18 and 10/03/18
