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This dataset contains details pollution incidents reported to NRW. Only substantiated and closed environmental protection incidents are included.

Data from 2013-04-01 to 2016-02-29 was stored in the legacy National Incident Recording System (NIRS) and provided as a seperate files. Data after 2016-03-01 is stored Incident Recording System (WIRS). Only substantiated and closed environmental pollution incidents, where we have categorised them as High (or Category 1 (High Major or Major Incident) or Category 2 (High Minor or Significant Incident) based on our previous classification levels) are included in this dataset. 

Where these data indicate an incident occurred on a particular site or property no inference should be drawn that the site or property owner necessarily was responsible.

Attribution statement

Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.