River and Lake Water Quality Monitoring

Lough Derg

Tipperary Co. Co. monitors water quality at the following locations: Terryglass, Skehana, Dromineer, Youghal Quay and Castlelough. The HSE carries out the monitoring for Tipperary Co. Co. every month from May to October.

Algal Blooms

Algal blooms on Lough Derg are caused by Blue/green algae, also known as cyanobacteria.

The Water Framework Directive (WFD) was adopted in 2000 as a single piece of legislation covering rivers, lakes, groundwater and transitional (estuarine) and coastal waters. Its objectives include the attainment of good status in water bodies that are of lesser status at present and retaining good status or better where such status exists at present and to ensure long-term and sustainable use.

There are 3 cycles observed