Caha Priority Area for Action Desktop Report

Jan 2020


One of the 27 catchments included in the Freshwater Pearl Mussel Regulations (SI 269 of 2009). It is failing to meet the conservation objectives for Pearl Mussel under this legislation.

It is not clear what the issue impacting Caha is. Land use in the catchment consists of pasture and forestry. There is potential for sedimentation of the river substrate from recent forest clear-felling as well as historic quarries in the catchment. Both have been identified as potential significant pressures. Agriculture is primarily low intensity, but there are a few dairy farms in the area.

Coolkellure Lake is a 3.5-hectare (Type 7) lake, located in Coolkellure townland, close to the headwaters of Bandon. It is the drinking water source for Dunmanway (abstraction rate of 550 m3/day). It is currently at ‘Moderate’ status. 

Ecological monitoring in Coolkellure lake indicates a nutrient issue in the lake. Macrophyte and phytoplankton communities both show enrichment.

Forestry has been identified as a potential significant issue in the catchment. The lake is bounded by conifer plantation forestry that has been recently clear-felled. Given the proximity to the lake, steep slopes and peaty soils there is the potential for sediment and nutrient runoff to the lake as a result. Local catchment assessment will focus on the tributary streams to assess from where significant issues might be occurring.

There are two quarries that are no longer operational. Both could have been a source of sediment to the river in the past

Additional information requirements

• Felling records needed for Coolkellure lake and Caha_020

• Additional information from Cork Co Co on quarry discharges in Caha 020

Leave a Reply