We ask people to trust us with something personal. We take that seriously. Here is exactly how we handle your information.
Your personal data will never be sold or shared with third parties. We don't run ads. We don't build marketing profiles. We don't take commissions from product recommendations. Your individual test results are private to your household.
When you order a test, we collect your name, address, and email so we can send your kit and deliver your results. Your water sample is analysed by a UKAS-accredited laboratory for 9 parameters including lead, copper, nitrate, pH, and hardness. Those results are stored as your household's exposure record.
If you subscribe to a WaterGraph Profile (£24/year), we store your ongoing exposure scores, alert preferences, and monitoring radius. If you join our mailing list, we store your email address.
Your test results generate your Household Water Exposure Score, a standardised, versioned record that is timestamped and yours to keep. We use your email to deliver results and, where you have opted in, to share relevant local water quality updates.
We use anonymised, aggregate data from across our network to build the WaterGraph Map, which shows exposure patterns grouped by area, not by individual household. These aggregate datasets also help researchers, water companies, and local authorities working to improve water quality outcomes at a regional level. No personal or household-identifiable information is included in any shared dataset.
Every test creates a structured exposure record for your home. You can request a full copy of your data at any time. If you ask us to delete your personal information, we will. Anonymised contributions to aggregate datasets are retained as part of the long-term water quality record, helping to track patterns across the watershed.
Your data is stored securely with access restricted to the WaterGraph team. We use encryption in transit and at rest, and we take appropriate measures to protect the information entrusted to us.
If you have any questions about how we handle your data, email us at hugh@watergraph.co.uk.