Groundwater Age Mixtures and Contaminant Trends Tool (GAMACTT)

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The USGS Groundwater Age Mixtures and Contaminant Trends Tool (GAMACTT) can be used to explore the effects of basic aquifer properties and well configurations on groundwater age mixtures in groundwater discharge and on contaminant trends from varying nonpoint-source contaminant input scenarios. Visit the GAMACCT site for more information and to use the tool.