title: Radiocarbon Determinations for Estimating Groundwater Flow Velocities in Central Florida.
abstract: Carbon-14 activity was determined from HCO(3)(-) in samples of groundwater obtained from the principal artesian aquifer in Florida. From these data the "age" of water obtained from a series of wells, each progressively farther down gradient on the piezometric surface, was established. Relative carbon-14 ages indicated a velocity of groundwater movement of 23 feet (7 meters) per year for about 85 miles (137 kilometers) of travel. A velocity of 23 feet per year was calculated independently from Darcy's law.
authors.forename: B B
authors.initials: BB
authors.lastname: Hanshaw
authors.forename: W
authors.initials: W
authors.lastname: Back
authors.forename: M
authors.initials: M
authors.lastname: Rubin