WATER BUDGET AND TREND ANALYSES OF A DEEP KARST AQUIFER IN A SEMI-ARID ENVIRONMENT, GRAND CANYON NATIONAL PARK
CHAMBLESS, Hannah1, SPRINGER, Abraham E.2, JONES, Natalie A.3 and EVANS, Max2, (1)National Park Service, Grand Canyon National Park, 1824 S Thompson St, FLAGSTAFF, AZ 86001, (2)Northern Arizona University, School of Earth and Sustainability, 624 Knoles Drive, Flagstaff, AZ 86001, (3)Department of Astronomy and Planetary Science, Northern Arizona University, Physical Sciences, 527 S. Beaver St., Flagstaff, AZ 86011