The mission of the Animas River Stakeholders Group (ARSG) is to improve water quality and habitats in the Animas River through a collaborative process designed to encourage participation from all interested parties.


– To monitor the water quality and aquatic habitats of the Animas River and its tributaries and provide access to the public of this information.

– To analyze all water quality information within the Upper Animas watershed to determine the extent and effects of metal contamination from natural, geologic processes and historic mining, and to identify major source locations.

– To determine the feasibility of remediation of sites discovered to be major contributors of metals or related contaminants.

– To use information from monitoring and feasibility determinations to develop a basin wide remediation plan consisting of cost estimates, possible technologies, and probable candidate sites.