Water dating

There may be lots of it, but the aquifer could take a long time to recover.Think of it like this: the water being pumped has to come from somewhere.Therefore, when I say groundwater is one year old, this means that it was likely rain from last year that has now reached the well, but it may be slightly older when you factor in the vadose zone travel time.Are you ready to meet your speed dating contestants!?81Kr is the newest tool in the isotope hydrologists kit and has been used to date waters over 100,000 years old!

The time it takes for the water to infiltrate through the soil layer is not included in the date which can add several months.If groundwater is young it is likely that the host aquifer is more vulnerable to contamination.Furthermore, knowing the age of groundwater throughout an aquifer will also allow a hydrogeologist to assess how quickly contamination will spread and if it can be contained.Post by Matt Herod Welcome to the first edition of groundwater speed dating.In today’s post I introduce you to a motley crew of isotopes and chemicals that hydrogeologists and geochemists use to date the age of groundwater.

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