Northern Ireland Water has been fined £2,000 for polluting a river in Co Armagh.
More than 250 metres of the Callan River were polluted after sewage overflowed into a tributary from Drumman More Waste Water Pumping Station (WWPS), Armagh Magistrates Court heard.
Northern Ireland Water said the pollution happened when the alarm at the WWPS failed and staff were unaware of the fact that a pump wasn't working.
NI Water spokeswoman Angela Halpenny, said: "This is the first incident of its kind at this station, which has been in operation for 20 years. NI Water co-operated fully with the NIEA and has implemented measures to reduce the possibility of this situation happening again."