Guide

Chemical manufacturing environmental regulations

Chemical manufacturing water discharge consents and authorisations

If you discharge anything other than clean, uncontaminated run-off to surface water or groundwater you could cause water pollution. Surface waters include rivers, reservoirs and canals. Groundwater is all water located below the water table.

You must check if your discharges need a permit, consent or authorisation from the Northern Ireland Environment Agency (NIEA).

Chemical manufacturing businesses can pollute waterways and sewers by discharging raw materials and effluent. Your business might discharge wastewater produced from:

  • boiler operations
  • chemical reaction cooling processes
  • discharge from wet scrubbers
  • cleaning operations
  • effluent or other treatment plants
  • site drainage and stormwater run-off

These sources may contain:

  • heavy metals, eg cadmium and mercury
  • hydrocarbons, eg benzene
  • resins
  • solvents, eg dichloroethane

You must have a discharge consent if you discharge anything other than clean, uncontaminated run-off to surface waters.

You must have a groundwater authorisation if you discharge anything other than clean, uncontaminated run-off to groundwater.