A Cambridge Lakehouse company.
The institutional foundation behind the science.
WaterGraph is a Cambridge Lakehouse company, a University of Cambridge spinout with research partnerships at Imperial College London. Our methodology is published, peer-reviewable, and governed by an academic chain of accountability across both institutions. This page explains who’s behind it.
A spinout, by design.
WaterGraph is a Cambridge Lakehouse company, a spinout of the University of Cambridge with research partnerships at Imperial College London. Our methodology, recommendation logic, and institutional governance all sit under that academic umbrella.
In practice, that academic governance does three things. It grounds the methodology in published research: versioned, peer-reviewable, reproducible from raw inputs. It separates the company from the commercial pressures that drive water-treatment vendors and filter retailers. And it makes the data referenceable. Institutions can cite WaterGraph readings the same way they cite a peer-reviewed source, because the methodology behind those readings is documented under academic governance at Cambridge and Imperial.
The detailed methodology lives on the scoring method page.
Named scientists, named accountability.
Four institutional anchors hold up the methodology and the company. One at Cambridge. Two at Imperial. One in the New Forest.
Dr Ralph St Clair WadeHead of Research · WaterGraph · University of CambridgeOwns the Water Exposure Score methodology, including the parameter weights, normalisation curves, and the critical override thresholds.
Cambridge profile
Dr Tom RowanResearch Fellow · Imperial College London · PhD, Fluid MechanicsResearch Fellow at Imperial focused on simulation tools and field instrumentation for water systems. His work integrates low-cost sensor design and AI to address pollution challenges across interdisciplinary teams in policy and infrastructure. He also co-founded HydroHammer, which develops zero-power hydraulic ram pumping systems, bridging water systems design, numerical modelling, and practical engineering.
Imperial profile
Professor Adrian ButlerProfessor of Subsurface Hydrology · Imperial College LondonProfessor of Subsurface Hydrology in the Department of Civil and Environmental Engineering at Imperial. His research focuses on measuring, analysing, and modelling subsurface water flow and contaminant transport. He has a particular interest in the Chalk of Southern England, including the aquifers relevant to the New Forest, and works with the British Geological Survey and CEH Wallingford. He is PI on the NERC-funded CAMELLIA project, co-developing solutions with environmental, engineering, and planning stakeholders.
Imperial profile
Hugh FraserCo-Founder & CEO · WaterGraphFamily-owned, New Forest-based. Hugh carries out every test himself.
LinkedIn
Watermark your home.
£29 for two tests, six months apart. Personalised advice after each one. New Forest properties only.
Book Your Test · £29※ Pay only when you receive your results.
※ If your Watermark feels wrong, we’ll re-test for free.
↗ Or check your local water map