Lough Rinn Forbes Priority Area for Action Desktop Report

Nov 2019



Large portion of peatland has been reclaimed and is now used for agriculture.

Pollutants have the potential to enter the waterbody (phosphorus, sediment and pesticides) as their main pathways are overland flow and along drains and ditches, in poorly draining soils.

The significant pressure identified is agriculture.

Point source nutrient issues need to be addressed at farmyard level


Mohill Urban Wastewater Treatment Plant discharges into Rinn_010

The plant was taking in landfill leachate, which it did not have the additional capacity to handle

Latest EPA data on Mohill:



The PAA feeds into the Longford Central drinking water supply, abstracted from Lough Forbes, this supply has been on the EPA remedial action list since 2017 for persistent pesticide exceedances.

Detection of MCPA above the drinking water limit

Section 4s

Section 4 Trade Effluent Discharge Licence at Lough Rynn Castle and Holiday Homes

Hydromorphology was selected as a significant pressure within Lough Rinn. The issues included the
presence of locks, weirs, dams, and barriers.

Invasive species have been identified as significant issues within Lough Rinn & Lough Forbes. Zebra mussels are present in both lakes.

Abstractions were identified as issue within Lough Forbes, however it was not deemed significant. This is the drinking water abstraction plant for the Longford Central supply. This scheme serves Longford town and surrounding areas such as Clondara, Ballinalee, Drumlish, Edgeworthstown and Newtownforbes. The water is supplied from the Lough Forbes treatment plant. It is operated by Irish Water and abstracts 6970 m3/day. This supply is currently on the EPA remedial action list due to persistent detections of pesticides.

Peat extraction has been identified as a significant issue in Lough Forbes.

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