The following are taken from EPA reports on the ecological quality of rivers and streams in Ireland. These catchment reports list all the rivers in the Moy catchment which includes the major tributaries of Lough Conn as well as the Corrib Mask system. Individual assessments of rivers are given with suspected causes of pollution where appropriate. A brief overview comment is available of current monitoring programmes and of phosphorus control measures in the River Robe sub-catchment of Lough Mask . There are signs of significant improvements in the phosphorus levels during the summer months in the lower section of the River Robe following installation of phosphorus removal.
Agricultural problems are still apparent in the upper River Robe, however.
As a result of the Lough Conn Report a number of lake research projects were initiated including the development of early warning ecological monitoring for the great western lakes. Further information is available at the EPA's Castlebar Web Site which deals with Irish rivers and lakes in a more general manner. Co. Mayo, Ireland.