The objective of the procurement is to establish a competent consultant group for the preparation of the preliminary study for the new water supply from Holsfjorden and assistance in connection with the development plant for this initiative. KVU for this initiative is now in quality assurance.

A preliminary study shall be prepared with a management document in accordance with the investment regime of Oslo kommune. Technical preliminary study will comprise:

— Intake and pumping station at Holsfjorden.

— Transfer tunnel from Vefsrud (Holsfjorden) to Oslo's municipal border or Oset.

— New water treatment plant with daily capacity of approx. 390 000 m³/24 hour period.

— Transfer of clean water in Oslo from the new water treatment plant to the central connection point in the city.

— Potential transfer tunnel for raw water between the west water treatment plant and Oset. Transfer of raw water both directions.

— Cost calculations for a combined project.

VAV also needs assistance in connection with the preparation of development plans with impact assessments for a combined project. 3 municipalities shall co-ordinate in connection with the development plan work, the County Governor and The Ministry of Climate and Environment will be involved with planning of initiatives at Marka.

NB: Subject to the Public Administration Department for Environment and Transport ordering the preliminary study.