Exact(12)
It is also coincident with the source of δ34SSO4 in both waters.
Six of the target analytes (sucralose, meprobamate, caffeine, DEET, TCPP and benzophenone) were common to both waters.
In contrast, the D- and O-isotopic composition of both waters differs in parts indicating an additional source of water that contributes to the seepage.
This is due to precipitation of barium/strontium sulphate from the mixture of both waters and the consequent permeability reduction resulting in loss of well productivity.
The observation was coincident with variations of ion concentrations in both waters along the flow, supported by PHREEQC modeling of minerals such as goethite, jarosite(ss), melanterite, scorodite, calcite, and dolomite.
"Our main research question is to make an assessment of water quality and understand where fluids are coming from, both waters and gases," said Stephen Osborn, an assistant professor of geology at California State Polytechnic University Pomona, working on the NSF study.
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They asked customers from both water systems to conserve water.
Groton Utilities supplies both water and electricity to its customers.
Both water and electricity supplies are erratic, for a start.
The United States won both water polo silver medals here.
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