The Colorado Geological Survey (CGS), a department of the Colorado School of Mines, has been funded through a grant from the Colorado Department of Public Health & Environment (CDPHE) to conduct a 5-year study of baseline radionuclides and metals in groundwater obtained from privately owned residential water wells throughout Colorado. CDPHE’s reason for this study is an education focus for homeowners on wells. Note: CDPHE has no regulatory authority over private wells. The grant is covering the costs. For this effort, 25 water samples are currently available for Custer County (note there are also samples for southern and Western Fremont county in 28 different zones). These were divided up into a grid, with each grid space containing between one to three proposed water samples. If…