Compliance as a continuous output, not an annual fire drill.
Continuous pH, turbidity, and chemistry monitoring, evidence-grade history, and audit-ready reports for the EU Drinking Water Directive, EPA frameworks, and equivalents.
The challenge
Regulators want demonstrable, continuous water-quality compliance. Reality is usually different: data lives across three vendor systems, audit prep takes a fortnight of someone reconciling spreadsheets, and a missed sensor outage isn't noticed until the auditor asks for the reading that wasn't there.
The stakes get higher every cycle — newer regulations (the 2023 recast EU Drinking Water Directive; EPA's lead-and-copper rule revisions) ask for more parameters, finer cadence, and more transparent reporting.
What success looks like
How WaterTwin delivers it
- Continuous in-line monitoring — pH, turbidity, free chlorine, conductivity, temperature, and any custom metric your sensors report, retained at full resolution.
- Satellite cross-validation — Sentinel-2 indices for source waters and reservoirs give you a second, independent signal when ground sensors disagree with one another.
- Threshold alarms with audit trail — every exceedance recorded with timestamp, value, threshold, severity, and who acknowledged it.
- Inspection templates for sampling rounds — pre-built checkpoints for chemistry tests, calibration verifications, and visual inspections, with photo and signature capture.
- Sensor-health monitoring — if a sensor stops reporting, you get alerted before the audit discovers it. No more "the probe was offline that week" moments.
- Exportable evidence — every reading, every inspection, every alarm acknowledgement is queryable and exportable in formats your compliance team can hand to the regulator directly.
A typical compliance workflow
- Define each regulated parameter with its limit, cadence, and reporting jurisdiction.
- Map sensors and sampling rounds to those parameters. WaterTwin tracks coverage and flags gaps.
- Continuous data flows in; threshold breaches trigger alarms with severity-aware routing.
- Periodic compliance reports are produced from the same live data — no separate workflow.
- At audit time, you hand over a query (or the auditor browses the dashboard themselves) instead of preparing a binder.
Where this matters most
- Drinking-water treatment plants with continuous regulatory obligations.
- Distribution networks with residual disinfection requirements at customer points.
- Wastewater discharge points with effluent limits and pollution-incident reporting.
- Bottled-water and industrial process water with similar continuous-monitoring needs.
What you need to start
- The list of regulated parameters and their limits for your jurisdiction.
- In-line analysers publishing over MQTT, OPC UA, Modbus, or Sparkplug B (any of the four).
- A sampling-round template if you do manual chemistry — we'll digitise it.
Bring your next audit. We'll show you a different way to prepare.
Tell us the parameters you have to report and we'll demo the continuous-evidence model with a sample.
Book a walkthrough