45252120 - Water-treatment plant construction work

CPV code 45252120 in the EU Common Procurement Vocabulary refers to Water-treatment plant construction work. It sits at level 6 of the CPV hierarchy as a subcategory within the 45 division. This code is nested directly under 45252100, narrowing the broader category into the specific area of water-treatment plant construction work. As a leaf code, 45252120 has no further subdivisions and represents the most precise classification available in this branch — buyers should reference it directly in tender notices when the procurement primarily concerns water-treatment plant construction work. Contracting authorities across the EU use 45252120 in TED notices and national procurement portals to signal that a tender relates to water-treatment plant construction work.