Table 1. Information About the Sampling Location and Drinking Water Production Sitesa.
| source type | sample code | treatment process | source typology | possible contamination source |
|---|---|---|---|---|
| surface water | 1 | advanced (PAC) | river (Meuse) | airport (firefighting training) |
| 2 | advanced (UV/GAC) | river (Rhine) | ||
| 3 | advanced (PAC) | river (Meuse) | ||
| 4 | advanced (PAC) | river (Meuse) | ||
| 5 | advanced (UV/GAC) | river (Meuse) | ||
| 6 | advanced (UV/GAC) | river (Meuse) | fluorochemical production plants | |
| 7 | advanced (GAC) | dune filtration | airport (firefighting training) | |
| 8 | advanced (GAC) | dune filtration | ||
| 9 | advance (ozone/GAC) | lake | ||
| 10 | advanced (RO/GAC)b | river (Rhine) | fluorochemical production plants | |
| 11 | advanced (GAC) | river (Rhine) | fluorochemical production plants | |
| groundwater | 12 | conventional | confined | |
| 13 | conventional | confined | historical landfill contamination | |
| 14 | conventional | confined | airport (firefighting training) | |
| 15 | conventional | confined | ||
| 16 | conventional | confined | ||
| 17 | conventional | confined | airport (firefighting training) | |
| 18 | conventional | confined |
a
PAC: powder active carbon; GAC: granular active carbon; UV: ultraviolet; RO: reverse osmosis.
b
The RO-permeate was mixed with raw water before conventional treatment.