Gellasch groundwater testing
Photo by UW-Madison, University Communications
© Board of Regents of the University of Wisconsin System
File ID: 14057
File name: Gellasch_well_test11_4627.jpg
File type: NIKON D3
Caption: A monitoring well cover is pictured as Christopher Gellasch, a Ph.D. candidate in geosciences at the University of Wisconsin-Madison (off camera), prepares to lower a section of pipe with inflatable collars used to isolate a small vertical segment of groundwater, on Sept. 28, 2011. In this instance, the device will collect samples 64 feet deep in a 214-foot monitoring well on the northeast side of Madison, Wis. Since 2003, virus particles have been discovered in many deep Madison water wells, and Gellasch, working with the Wisconsin Geological and Natural History Survey and University of Wisconsin-Extension, is researching how such viruses move through underground fractures and a semi-permeable layer of rock to reach the deep aquifer. (Photo by Jeff Miller/UW-Madison)
Photo by: Jeff Miller
Date: 2011
Specs: NIKON D3, f/5.0, 1/250, 145.0 mm