NJDEP, NJGWS, Division of Water Supply and Geoscience, Bureau of Water Resources and GeoscienceThis layer includes per- and polyfluoroalkyl substances (PFAS) groundwater quality data from the 6th sampling cycle (2020-2022) of the New Jersey Ambient Groundwater-Quality Monitoring Network (AGWQMN). Sampling for PFAS was added to the AGWQMN project in 2020. Samples were analyzed for 28 PFAS compounds using a laboratory-specific modified version of U.S. EPA Method 537 using liquid chromatography and tandem mass spectrometry, with isotopic dilution. The analytical laboratory used for this survey was United States Geological Survey (USGS) contract lab SGS using method LCID537 AQ that has been approved for use in the State of NJ by the New Jersey Department of Environmental Protection (NJDEP) Office of Quality Assurance. Groundwater samples were analyzed for the following 28 PFAS: 11Cl-PF3OUdS, 6:2 FTS, DONA, 9Cl-PF3ONS, 4:2 FTS, 8:2 FTS, N-EtFOSAA, N-MeFOSAA, HFPO-DA [GenX], PFBS, PFBA, PFDS, PFDA, PFDoDA, PFHpS, PFHpA, PFHxS, PFHxA, PFNS, PFNA, PFOSA, PFOS, PFPeS, PFPeA, PFTeDA, PFTrDA, PFUnDA, and PFOA ion. Concentrations are reported in nanograms per liter (ng/L). The AGWQMN is a cooperative program between the NJDEP and USGS. The goal of the current network is to determine the status and trends of shallow groundwater quality as a function of land use related to nonpoint source pollution in New Jersey. This network consists of 150 monitoring wells screened near the water table. This layer includes data collected between 2020 and 2022, and PFAS data are available for 149 of the AGWQMN monitoring wells. The New Jersey Geological and Water Survey (NJGWS) manages the network design, well installation, well maintenance, data interpretation, reporting, and a portion of the well sampling. The NJDEP Bureau of Fresh Water and Biological Monitoring and the United States Geological Survey (USGS) collect the remaining groundwater samples and the USGS National Water Quality Laboratory in Denver, Colorado or their contracted laboratories analyzes them. Chemical and physical parameters analyzed at each well include field parameters such as pH, specific conductance, dissolved oxygen, water temperature and alkalinity, major ions, trace elements (metals), gross-alpha particle activity (radionuclides), volatile organic compounds, nutrients, pesticides, and PFAS.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/4714eafaa450473a8eccb4fae96c428a_132engNew Jersey Department of Environmental Protection's (NJDEP) Bureau of GISPublicNJ Ambient Groundwater Quality Monitoring Network, PFAS, 2020-2022 [New Jersey]Web servicesNew Jersey2020-2022