This dataset is a complete* view of all pollution incidents with the following attributes;

Covers a 5 year period (2013 - 2017 inclusive)
Includes classifications graded 1-3 (excludes 4)
Includes NIRS (national incident recording system) reference
Includes Grid references
Includes date incident occurred

*Has been subjected and qualified through PACE (police and criminal evidence) procedures, of which 4 case during this period are still under investigation and as such not included in this dataset.

The information has been released in support of our Open by Default 2020 commitment to release majority of operational and service data by the end of 2020. Further information on the objective can be found here; https://www.yorkshirewater.com/about-us/newsroom-media/open-data-february-2018

Retrieved from page 14: Incidents and their classification: the Common Incident Classification Scheme (CICS)

For each functional scheme, the environmental impact categorisation, is split into four categories:

Category 1 – major, serious, persistent and/or extensive impact or effect on the environment, people and/or property
Category 2 – significant impact or effect on the environment, people and/or property
Category 3 – minor or minimal impact or effect on the environment, people and/or property
Category 4 – substantiated incident with no impact. Assign the impact category corresponding to the highest criteria selected. The potential impact category assigned informs the response time required (refer to incident management service levels).

Art and Culture

Business and Economy

Education

Geospatial

Health

Housing

Licences

Local Services

Sport

Tourism

Transparency

Transport