1. The drilling consists of approximately 80 meters depth. If during the drilling the Contractor encounters any technical or geological problem, NGU shall be contacted immediately to discuss and decide whether to caster/case the hole or stop drilling.

2. The minimum core drill diameter should be 90 mm or more. Core recovery shall be as continuous as possible, and cores should be labeled and sealed for transport to NGU laboratory in Trondheim.

3. A drilling report containing all drilling information about drilling speed, registration of cracks (fractures), inflows of water from cracks, rock types, and other drilling information etc., is required at the end of the assignment