Carrying out NEN 3140 inspections on all sewage pumping stations, mountain sedimentation installations, pressure sewer pumping stations, central power supply cabinets, water features and structures, power poles and shore power cabinets (these shore power cabinets from 2024) in the municipality of Hoeksche Waard.

Approximately 142 sewage pumping stations, 23 mountain sedimentation installations, 1411 pressure sewer pumping stations, 150 central power supply cabinets, 27 water features and structures, 11 power poles and 3 shore power cabinets.