Molde- Fannefjord, Møre og Romsdal. Assessment of discharges of municipal waste water with regard to the requirement of secondary treatment in the EU Urban Waste Water Directive

Abstract

In general the environmental conditions in the Molde- and Fannefjord were classified as Very Good. This classification corresponds to the fact that the nutrient load from municipal sewage contributes a small part of the total load for the fjord system. At RA2 the hard bottom flora and fauna showed local indications of increased nutrient load and the bottom around the outfall was covered by sludge. Except from these local effects this study did not show any negative effects on the marine environment from the outfalls from RA1 and RA2. From the above description follows that the Moldefjord and the Fannefjord are not adversely effected by the present discharges of municipal sewage. Near the fish farm at Grønnes some indications of eutrophication on hard bottom flora in the littoral zone were observed, but not on soft bottom fauna or water quality parameters