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Age of Discharge Water
The age of water discharging from Apopka Spring was determined by measuring the concentration of tritium, helium-3, helium-4, and neon in the spring discharge in August 1999. Apopka Spring had a tritium concentration of 2.9 tritium units, which suggests that the water is less than 46 years old. The tritium and helium-3 age of water discharging from Apopka Spring was 24.5 years.
What does this mean, that the water coming out of Apopka Spring today is rainwater that fell 25 years ago?