Eesmärk
Sarpsborg municipality c/o the team environment and agriculture invites tenderers to submit tenders for the preparation of a new knowledge base for ecological and chemical conditions, including preparing proposals for implementation of measures for Isesjø. The assignment includes the assessment of threats for Isesjø as a source of drinking water. The assignment also contains options for the study of sources of danger for pollution of Vestvannet as a drinking water source, and correspondingly to the water source at Baterød waterworks.