Privacy policy

Last updated 30 September 2026.

WaterBalanceCalc is a free tool for building water balances. This policy explains what we collect, why, and what you can do about it. We collect as little as the service needs and we never sell data.

What we collect

• If you create an account: your email address, name, organisation, role, country and the size of system you work on.
• Water balances you choose to save, including their inputs and results, and the names of anyone you share them with.
• Usage events — which steps you completed, whether you exported or emailed a report, whether you used the assistant — tied to an anonymous session or, if signed in, your account. We use these to understand how the calculator is used and improve it.
• Questions you send to the AI assistant, together with a summary of your current inputs. These are processed by our AI provider to generate a reply and are not used to train models.
• If you email a report or share a balance: the recipient address you enter, so the email can be sent and the share recorded.

What we do with it

We use your data to run the service, save your work, send the reports and invitations you ask for, and understand how the tool is used. Only if you opted in do we send occasional emails about the service, and you can opt out at any time. If you opted in to benchmarking, your results may be included in anonymised, aggregated statistics — for example, the distribution of ILI by system size. Individual balances are never published or shared with a name, organisation or utility attached.

Where it lives

Data is stored and the site is served by established cloud infrastructure providers under contractual confidentiality and security obligations. Balances you have not saved exist only in your own browser's local storage and never reach us.

Who can see a saved balance

You, anyone you have shared it with, and the site's administrators for support and aggregate analysis. Access is enforced at the database level.

Your choices

You can delete any saved balance from your dashboard, remove anyone you have shared with, and ask us to delete your account and everything attached to it by emailing hello@waterbalancecalc.com. You can change your marketing preference at any time via the unsubscribe link in any email. You may also ask for a copy of the data we hold about you.

Cookies

A session cookie keeps you signed in, and a local-storage key holds your unsaved balance. No advertising or tracking cookies.

Changes and contact

We may update this policy; the date at the top shows the current version. Questions: hello@waterbalancecalc.com.

WaterBalanceCalc is operated by Aqua Analytics Australia Pty Ltd, which is the entity responsible for your data under this policy.