COMHAIRLE CONTAE ÁTHA CLIATH THEAS
SOUTH DUBLIN COUNTY COUNCIL

MEETING OF LUCAN AREA COMMITTEE

Tuesday, October 24, 2017

MOTION NO. 24

MOTION: Councillor L. O'Toole

"That this Area Committee requests that the Chief Executive provide a report on the recent findings of poor quality water along the river Liffey which was recently published by the Department of Environment, and to advise what effects this could have on future plans for the Liffey Blue Way project for this area."

REPORT:

Water quality for the River Liffey in the stretch along the South Dublin County border is sampled at five locations and, overall, is of moderate quality. Many water quality parameters, such as oxygen levels, measured at these location are consistently compliant with surface water quality standards but occasionally nutrients of phosphorus and ammonia exceed the standards. Exceedances can, in general, be attributed to the accumulation of these nutrients as the River Liffey makes its way from its source, through the landscape, before discharging to the Irish Sea. Water quality is also significantly influenced by seasonal factors, high flows and weather events. The Council is committed to continue its water quality improvement efforts for the River Liffey by way of pollution incident response, sanitary investigations and discharge licensing in its immediate environs and in the contributing catchments of the Griffeen, Camac, and Dodder.