TM94-10 Change in decay calculations at the University of Miami Tritium Laboratory - Change in oxygen isotopic data at the Reston Stable Isotope Laboratory

Two laboratories from which the National Water Quality Laboratory (NWQL) receives data, the 
University of Miami Tritium Laboratory and the Reston Stable Isotope Laboratory, have changed 
their methods for reporting certain results. The tritium lab change concerns decay calculations, and 
the stable isotope lab change is a shift in oxygen isotopic data.