Northern Ireland Water has clarified a statement provided to Mid Ulster District Council that claimed 70% of phosphorus entering Lough Neagh originates from agriculture. The utility acknowledged the figure was presented as definitive rather than an approximation.

NI Water stated that relative contributions of phosphorus from agriculture, wastewater, and other sources are complex and subject to ongoing scientific research. An updated report is expected later this year from the Department of Agriculture, Environment and Rural Affairs. The company noted it owns its share of phosphorus loading and adheres to guidelines from the Northern Ireland Environment Agency.

The Ulster Farmers' Union rejected the original statement as misleading and inappropriate. The UFU described nutrient modelling as estimates based on assumptions and data with uncertainties, raising questions about data reliability.

UFU Deputy President John McLenaghan said modelling outputs cannot be treated as definitive fact. The UFU emphasised that agriculture accepts responsibility for water quality improvements but all sectors must contribute.

Farmers have complied with regulations for two decades, the UFU said, investing in storage and nutrient management while reporting untreated sewage discharges into waterways. The UFU contacted NI Water to request a retraction of the statement and an apology to the farming sector.

NI Water committed to working with regulators, local government, scientists, and stakeholders, including the agricultural community, to improve Lough Neagh's condition. The utility recognised concern among farmers and reaffirmed partnerships with the sector.