Groundwater monitoring

Welcome

Compare tritium readings over time for a reactor site—type values in directly or upload an export—and see them on one timeline. Anyone can contribute readings; optionally add a moderator password so only trusted people can remove or hide entries.

Start something new

Create a workspace for one site or study. Then add quarterly readings anytime.

If you choose one, it is encrypted on our server—pick something strong and share it privately with helpers.

Open an existing site

Popular sites appear here automatically. Anyone can type in new readings once you're inside. Workspace managers can unlock moderator tools below if a password exists.

Practice with demo data

Load a fictional series to see how the chart highlights unusual rises—no workbook needed.