...enabling continuous
drinking water quality intelligence The Missing Water Quality Data Layer

 ...completing the digital picture of drinking water distribution networks.
 ...enabling continuous
drinking water quality intelligence From Water Quality Monitoring
to Water Quality Intelligence ...moving beyond isolated measurements towards continuous operational understanding.
 ...enabling continuous
drinking water quality intelligence Understanding Water Quality
at the Customer's Tap

 ...providing the evidence needed for better operational, engineering and investment decisions.
 ...enabling continuous
drinking water quality intelligence Powering the Next Generation
of Digital Water Networks

 Continuous water quality intelligence for smarter utilities,
digital twins and future AI-driven decision support. Intelisys logo

Important changes in water quality can occur between routine samples and as water travels from treatment to the customer. Continuous monitoring helps reveal when they occur and how they develop.

The coexistence

99.97%
Overall compliance with drinking water standards, England, 2024
472
Compliance failures associated with consumer distribution systems, 2024
586
Water quality events notified, 2025
High compliance and reported water quality events describe different aspects of performance. Continuous monitoring adds a time-resolved operational view at selected locations, helping teams investigate changes between samples.
The purpose of continuous monitoring is not to create more data. It is to shorten the distance between a change in the network, an understanding of its water quality consequence, and an effective response.

Proving an outcome is a different problem from delivering one

Ofwat wants evidence that investments improve outcomes. The DWI wants network-wide risk understood. Water companies need to understand distribution risks and demonstrate the benefits of investment. Monitoring before, during and after an intervention helps establish what changed, when it changed and whether the improvement was sustained.
That temporal evidence requires time to build, which is why the monitoring start date must be part of the intervention scheduling process.
Read more about the evidence requirements in different regions:
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England & Wales
European Union & EEA
International

The evidence gap

Why distribution behaves as a process, what each kind of evidence can answer, and how to decide where a monitor earns its place.

The argument

Sectors and regions

Four different reasons to want the same record, and three regulatory contexts that ask for it in different words

Sectors & regions

Technology

HydraClam, ChloroClam and Clamnet: continuous distribution monitoring built to produce evidence that survives review.

Technology
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What we actually build

Instruments in the network, and the platform that holds what they measure.

Discover the technology
  • Instruments that can be placed where the decision is, not where installation is easy — the lightest configurations need no civils and no external power supply
  • Configuration taken from the network’s own control measures, including where a residual is deliberately absent
  • Bi-directional communications, remote configuration and alarming
  • A record that holds the measurement, the configuration history and location record together, because a trace on its own is not evidence
  • A seasonal baseline that cannot be acquired late
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Experience in operational networks

13
Countries that use our products
500m+
Data points logged on Clamnet
20+
Years of company heritage
Intelisys Limited was a named partner in Water Quality as a Service — Treatment 2 Tap, an Ofwat Innovation Fund project led by Northumbrian Water with Siemens, the University of Sheffield and five water companies, completed in October 2025.
Verifiable on Ofwat's own record

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