Hydrology and Water Quality of the Grand Portage Reservation, Northeastern Minnesota, 1991-2000

摘要

The purpose of this report is to: (1) describe the ground- and surface-water hydrology of the entire Reservation; (2) describe the water-quality of lakes, streams, springs, and wells in the Reservation using the data collected during 1991-2000; and (3) present the results of ground-water recharge-age dating using tritium and sulfur hexafluoride data collected during 1999-2000.