This dataset represents the site locations of Domestic Waste Water Treatment Systems where inspections have been carried out under the National Inspection Plan. These locations have been captured by Local Authority Inspectors as part of the process of logging inspection details within the Domestic Waste Water Application.

This dataset was developed for the National Inspection Plan 2018 – 2021. The aim of the Plan is to protect water and human health from risks posed by domestic waste water treatment systems. The data consists of 10 risk zones. The zones were derived from the combination of surface waterbody characterisation data and geological vulnerability data. The 10 risk zones were developed to guide the selection of sites for inspection.