Cleaning of drainage systems in the area of the Masters Ratingen and the Autobahnmeisterei Duisburg.

47-20-7033

- approx. 80 gas tests;

- approx. 32 pieces removal of dangerous concentration;

- approx. 35 shut-off valves;

- Carry out approx. 19 St. declaration analysis;

- Approx. 188 pieces of high-pressure flushing and suction car;

- Approx. 19 night use of high-pressure flushing and suction car;

- approx. 75 pieces removal of roots in drainage pipes;

- approx. 18 hours removal of roots in drainage pipes at night;

- Approx. 2300 m camera inspection of drainage pipelines;

- Approx. 700 m camera inspection of drainage pipelines at night;

- approx. 491 t. Dispose of waste;

- approx. 48 m 3rd Create seepage layer;

- approx. 4 psch. Set up construction site;

- keep around 0.8 Mt.

- approx. 4 psch. Clear site equipment;

- approx. 4 psch. Set up inlet and outlet block;

- approx. 4 psch. Manufacture water drainage system at the choice of the contractor;

- Take approx. 4 water samples above the water * Tapping device;

- approx. 8 samples to AG * bottle of the contractor;

- take approx. 8 samples of sludge / deposit * sampling device;

- approx. 4 psch. High-pressure flushing and suction car use

- approx. 4 psch. Clean the rainwater retention basin

- approx. 760 m 3rd Dispose of hazardous waste from rainwater retention basins