Temporary contract work in the field of sewage and rainwater sewerage - cleaning and TV inspection 2023 in lots (framework agreement)
Lot 1 Scheduled cleaning and TV inspection
Lot 2 Unscheduled cleaning and TV inspection
Scheduled cleaning & TV inspectionLot 1:
90 km cleaning of sewage system DN 200-DN 800
30 km TV inspection Panoramo technology incl. evaluation
500 m inspection, tracking and surveying
Hausanschlußleitungen
20 km cleaning rainwater sewer DN 300 to DN 1600
The city of Vechta operates a main sewage system with the district Langförden (distance from Vechta approx. 8.5 km) of approx. 366 km length. Of this, approx. 176 km are free-flow pipes of the sewer and approx. 190 km of free-mirror pipes of the rainwater sewer. The sewer network of the city of Vechta has grown historically. Most of the canal network was built after 1950. The average housing length is about 50 m.
Lot 1: A scheduled cleaning and TV inspection of the sewage and rainwater sewer system with inclination measurement is planned as well as the cleaning in the run-up to TV inspections for new construction (NB) and warranty (GW) acceptance.
Lot 2: Unscheduled cleanings and TV inspections as well as blockage removal and cleaning in advance of small TV inspections are planned. The Contractor shall set up an on-call service for emergencies, which shall commence work at the site within 1 hour of issuing an emergency order. An emergency order includes, for example, urgent cases such as burst pipes, blockages, etc.
Unscheduled cleaning and TV inspectionLot 2:
9 km Unscheduled cleaning SWK and RWK
50 h high-pressure flushing and suction vehicle
70 units cleaning shaft pumping stations
58 units cleaning house pumping stations
40 h Kanalinspektion
The city of Vechta operates a main sewage system with the district Langförden (distance from Vechta approx. 8.5 km) of approx. 366 km length. Of this, approx. 176 km are free-flow pipes of the sewer and approx. 190 km of free-mirror pipes of the rainwater sewer. The sewer network of the city of Vechta has grown historically. Most of the canal network was built after 1950. The average housing length is about 50 m.
Lot 1: A scheduled cleaning and TV inspection of the sewage and rainwater sewer system with inclination measurement is planned as well as the cleaning in the run-up to TV inspections for new construction (NB) and warranty (GW) acceptance.
Lot 2: Unscheduled cleanings and TV inspections as well as blockage removal and cleaning in advance of small TV inspections are planned. The Contractor shall set up an on-call service for emergencies, which shall commence work at the site within 1 hour of issuing an emergency order. An emergency order includes, for example, urgent cases such as burst pipes, blockages, etc.