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Water Sampling and Analysis for the Tracer/Time-Lapse Radar Imaging Test at the Boise Hydrogeophysical Research Site

Abstract : This report describes the logistics, methods, and results for water chemistry sampling and analysis in support of the Tracer/Time-Lapse Radar Imaging Test (TTLT) conducted at the Boise Hydrogeophysical Research Site (BHRS) in 2001. In general, water samples were collected from 50 locations every four hours during the test and were analyzed in the field for electrical conductivity, temperature, uranine concentration (based on fluorescence), and pH. In this way, breakthrough was monitored in near-realtime, especially at 20 discrete zones in well A1 in the middle of the plume path and several cross-hole tomographic planes.