90733500 - Surface water pollution drainage services

CPV code 90733500 in the EU Common Procurement Vocabulary refers to Surface water pollution drainage services. It sits at level 5 of the CPV hierarchy as a subcategory within the 90 division. This code is nested directly under 90733000, narrowing the broader category into the specific area of surface water pollution drainage services. As a leaf code, 90733500 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 surface water pollution drainage services. Contracting authorities across the EU use 90733500 in TED notices and national procurement portals to signal that a tender relates to surface water pollution drainage services.