Maine EGAD (Environmental and Geographic Analysis Database)
The Environmental and Geographic Analysis Database (EGAD) is the Maine Department of Environmental Protection's database of environmental sampling and monitoring data. It stores site and water quality information for potential and actual sources of contamination, including physical, chemical, biological, and spatial data for surface water, groundwater, and biological sampling sites across Maine. EGAD includes per- and polyfluoroalkyl substance (PFAS) sampling results. SAWGraph uses EGAD as a primary source for state-level PFAS occurrence data in Maine.
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