Hønefoss has its water supply from ground water wells at Begna, via Kilemoen, where there currently is an elevated basin with equipment for airing and possibly adding chlorine to the drinking water. The facility at Kilemoen shall be extended with a new process plant as the manganese content has increased, so that the manganese can be removed from the drinking water. In addition the pH shall be increased and a new UV plant shall be installed as a part of the processing plant.

Ringerike kommune c/o Development has held the competition with negotiations for the purchase of complete process equipment for water treatment delivered in a turnkey contract with process guarantee.

The contract is awarded to Hydro-Elektrik AS.