The article, Aging Aquifers by Valerie King states the importance of dating groundwater.
King begins by stating dating aquifers can predict 50 years down the road. It is important to date groundwater to know the accessibility of water for future use. Dennehy states, “In very old groundwater, when you’re extracting water you should realize that water took a long time to get into that location, so it would take a long time to replace that water” (King 11). Dating aquifers is done by testing the water’s “Krypoton-81 isotopes” (King 11). King also says, “Every 230,000 years, the isotope’s concentration decreases by a factor of two” (King 11). This is how they determine each well’s age. The isotopes are used as a watch. Isotopes are collected
King begins by stating dating aquifers can predict 50 years down the road. It is important to date groundwater to know the accessibility of water for future use. Dennehy states, “In very old groundwater, when you’re extracting water you should realize that water took a long time to get into that location, so it would take a long time to replace that water” (King 11). Dating aquifers is done by testing the water’s “Krypoton-81 isotopes” (King 11). King also says, “Every 230,000 years, the isotope’s concentration decreases by a factor of two” (King 11). This is how they determine each well’s age. The isotopes are used as a watch. Isotopes are collected