Free operator tool

Risk Assessment Review Date Calculator

Calculate a simple five-year review marker from the assessment date and keep the limitations visible.

The downloaded .ics file can be imported into Google Calendar, Apple Calendar or Outlook. Your calendar then provides the alerts; this site does not send reminder emails or texts.

Planning aid onlyThis tool does not make a legal classification, set a binding monitoring programme, interpret water quality or replace professional advice.

What the marker means

DWI guidance describes a five-year review cycle for relevant private supply risk assessments. It also notes that a review should happen when the existing assessment is inadequate or circumstances have changed significantly.