Lëtzebuergesch (lu)
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Lëtzebuergesch (lu)
Français (fr)
Deutsch (de)
English (en)
Portals
This is an old revision of the document!
Type of wastewater treatment unknown | |
Other type of wastewater treatment | |
Septic tank with overflow | |
Wastewatertank without overflow | |
No wastewater treatment | |
Biological treatment plant |