Oxygen 18
http://groundwater.victoria.com.au/feature/constituent/feduni.borehole.constituent.51409.44574.121
121
18Oxygen
d<sup>18</sup>O<sub>V-SMOW</sub>
liquid
E.coli
http://groundwater.victoria.com.au/feature/constituent/feduni.borehole.constituent.51409.44574.130
130
Escherichia coli
solid