A production drilling is planned on the Goliat field in the Barents Sea. The present report calculates the potential risk (EIF’s) for the water column and the sediment caused by the planned drilling operations. 28 wells are planned, distributed at 8 different templates. The report considers EIF’s for five different scenarios for management options. This is considered for discharges from one well only and discharges from all wells together. All calculations are carried out with the DREAM model version 4.0 operated by SINTEF.