GIS in Action 2026

For over 2.5 years, City of Salem Environmental Services has accumulated both internally and externally collected PFAS (per- and polyfluoroalkyl substances) samples, but these results were not integrated into GIS until recently. Our GIS team developed an internal ArcGIS Experience Builder application, built on Survey123 forms and hosted feature layers, with an automated FME workflow to standardize and consolidate the data. The application allows users to generate chain of custody forms, submit new lab results to update the dataset, filter sites by matrix and category, track regulatory exceedances, explore time-series trends for 40 PFAS analytes, and access associated lab reports and data files. By linking sampling events to mapped locations, the system turns years of scattered environmental data into an interactive, easy-to-use resource that supports better decision-making.