| Abstract
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Data from the 1993-1997 "Watershed Analysis of Abandoned Hardrock Mine Priority Sites" inventory performed by the Montana Department of Environmental Quality, Mine Waste Cleanup BureauThe data include 5 GIS layers for the site outlines, stream and sediment samples taken and analyzed for the inventory, and for the hydrography and watershed outlines of the watersheds containing the sites. The site polygons have attributes for the estimated waste rock and tailings volumes associated with the site and the AIMSS Human Health and Environmental score for the site.The water and sediment sample data include the sample locations, assessement of the sample sites, flow rates in cubic feet per second, and test results for pH, radiation, specific conductance, Eh, temperature, alkalinity, depth to water, potassium, calcium, titanium, chromium, manganese, iron, cobalt, nickel, copper, zinc, arsenic, selenium, strontium, zirconium, mercury, molybdenum, lead, rubidium, tin, antimony, barium, silver, uranium, thorium, hardness, sulfur, sulfate sulfur, pyritic sulfur, organic sulfur, lime requirement, total dissolved solids, chloride, sulfate, and nitrate.
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