Evaluation of Archived Water Samples Using Chlorine Isotopic Data, Idaho NationalEngineering and Environmental Laboratory, Idaho, 1966-93

摘要

The purpose of this report is to describe the evaluation of water samples fromthe USGS archive library in terms of chlorine isotope fractionation and thereby establish confidence in utilizing chloride isotopic data for these water samples. The evaluation covered the period of archived samples available for selected sites at the INEEL and included: (1) assessment of paper and computer records for each sample, (2) determination of stable chlorine ratios in the water samples, and (3) determination of cl-36 and dissolved chloride concentrations in the water samples. These assessments and analyses were performed to ascertain if chlorine isotope fractionation may have occurred during storage. The scope of this report was limited to the evaluation of archived water samples from six USGS monitoring wells from 1966-93 and one surface-water site for 1970.