Renovation of sand filters at Bekkelaget wastewater treatment plant.

* Suction and removal of filter media * Removal of existing nozzles and installation of new ones * Procurement and supply of new filter material The framework agreement will have a duration of 3 years from the date of the last signature. The contracting authority has the option to extend the agreem

ent for an additional 3 + 2 years on unchanged terms. The maximum possible contract duration is 8 years. A framework agreement will be entered into with one supplier for this assignment. The contracting authority reserves the right to enter