sewerage systems
type: Concept
preferred label: avloppsanläggningar @sv
preferred label: viemärilaitokset @fi
related: sewage treatment plants

water institutions
type: Concept
preferred label: vattenverk @sv
preferred label: vesilaitokset @fi
related: sewage treatment plants

water supply and sewerage systems
type: Concept
narrower: sewage treatment plants
preferred label: VA-anläggningar @sv
preferred label: vesihuoltolaitokset @fi

small sewage plants
type: Concept
broader: sewage treatment plants
preferred label: små reningsverk @sv
preferred label: pienpuhdistamot @fi

sewage treatment plants
type: Concept
broader: water supply and sewerage systems
in scheme: conceptscheme
narrower: small sewage plants
preferred label: jätevedenpuhdistamot @fi
preferred label: reningsverk @sv
related: sewerage systems
related: water institutions