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• Organization: U.S. Environmental Protection Agency
• Dataset Last Updated: August 31, 2023

This article uses a data set of geochemical tracers collected from the Captain Jack Mill Superfund Site in Colorado. The journal article is the result of a collaboration between U.S. EPA and the...

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• Organization: Department of the Interior
• Dataset Last Updated: January 21, 2022 at 12:00 AM

This child item of the data release contains geochemical and environmental-tracer model inputs, outputs, model results, and a full model archive (model code). Dataset includes environmental-tracer...

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• Organization: Department of the Interior
• Dataset Last Updated: January 21, 2022 at 12:00 AM

The Captain Jack Superfund site near Ward, Colorado hosts extensive interconnected underground mine workings, which drain via the Big Five Adit. Drainage from the adit has historically been acidic...

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• Organization: Department of the Interior
• Dataset Last Updated: October 13, 2026 at 12:00 AM

Acid mine drainage originating from underground mine workings discharge to surface water within the Lefthand Creek watershed and may adversely affect downstream aquatic ecosystems and habitats....

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• Organization: Department of the Interior
• Dataset Last Updated: January 21, 2022 at 12:00 AM

This child item of the data release contains groundwater-level elevation and water-quality data, both collected by contractors to U.S. Environmental Protection Agency (EPA) and later furnished to...

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• Organization: Department of the Interior
• Dataset Last Updated: March 02, 2023 at 12:00 AM

The U.S. Geological Survey (USGS) used an analytic-element method (AEM) modeling approach to quantitatively understand groundwater dynamics at the Captain Jack Superfund Site, located in Boulder...

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