Domestic wells that are not safeguarded by regular water-quality testing provide drinking water for 79 percent of the residents of Geauga County, in northeastern Ohio. Since 1978, the U.S. Geological Survey (USGS) has worked cooperatively with the Boar
Jagucki, Martha L. mjagucki@usgs.gov,Kula, Stephanie P. spkula@usgs.gov,Mailot, Brian E. bemailot@usgs.gov. Groundwater quality in Geauga County, Ohio: status, including detection frequency of methane in water wells, 2009, and changes during 1978-2009. 2015-01-01.