Hydrogeologic and water-quality data used to evaluate the effects of focused recharge on ground-water quality near Princeton, Minnesota, 1991-95 - Delin, G. N.; Landon, M.K.; Nelson, K.J.; Wanty, R. B.; Healy, R.; Olson, H.W.; Böhlke, J.K.; Schroyer, B. R.; Capel, P. D. (Open-File Report, 1997)