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VizO collects, analyses and restitutes water data: whatever the matrix, from catchment to discharge. On a standard protocol, with guaranteed ownership and portability: the exact opposite of technological captivity.
VizO live
Network map, statistics, PFAS compliance, forecasts and an AI assistant, in a single console. Explore the views the way an operator would.
Compliance
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Network yield
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Leaks pre-located
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Active sensors
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Instrumented network
Event stream
Demonstration: simulated data for illustration. The real analysis engine applies the thresholds of the French Public Health Code and EU Directive 2020/2184.
VizO, in the real world
The preview above is a stylised reconstruction of the control room. Here is the real platform, in production, on public Hub’Eau data: same engine, same rigour, eight screens.
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Towns covered (Hub’Eau, updated continuously)
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Analysis profiles: drinking water, ecosystems, groundwater, resource
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Core sources: Hub’Eau, SISPEA, SANDRE, geo.api.gouv.fr, PubChem
The choice of analysis profile shapes the whole interface: drinking water, ecosystems, groundwater or resource.
A summary view that always places the official verdict ahead of VizO’s own index.
34,961 towns, one map, a reading that animates over time.
A prioritised register, not just a record: the worst first, with the actions to take.
Anticipate an exceedance, not just record it after the fact.
Understand a potential cause, not just record an exceedance.
A unified document centre: what you read on screen restitutes as a report, with no reformatting.
The verdict at sample grain, not just an annual average.
The VizO platform
A software platform that turns signal into decision: measurement aggregation, AI analysis, and open restitution. Regulatory reporting and extractions are included in the capability subscriptions.
Collection
Aggregation of measurements from all sensors and formats, continuously, via the public LoRaWAN network.
AI analysis
Anomaly detection, pre-location, virtual sensors: raw data becomes actionable information.
Restitution
Dashboards, alerts, regulatory reporting and extractions, with no separate platform billing.
Interoperability
Open REST / MQTT APIs, JSON / CSV formats, CMMS, GIS and telemetry interfaces.
Who it’s for
Every profile finds, on the same data foundation and the same analysis engine, the use that concerns it.
Network operator
Multi-DU operational monitoring, early alerts, 2026 PFAS anticipation, import of proprietary data.
Laboratory
Bulletin import, white-label reports and client portal, account management.
Engineering firm
Advanced analysis: statistics, correlations, forecasts, every tab open.
Local authority
Territorial steering, public-communication mode (A-to-E grade), comparison with neighbouring towns.
End client
A portal restricted to its own scope: compliance, documents filed by its provider, requests.
The white-label lever
A laboratory or operator can resell access to VizO to its own clients: custom branding, features activated à la carte, a dedicated portal (up to 50 towns per client), with no development.
A project like this? See our expertise.What VizO does
Mapping, advanced statistics, regulatory compliance and forecasting in a single console, and everything restitutes as ready-to-share reports.
Mapping
Points and territories coloured by criticality, municipal choropleths, thematic layers (PFAS, pesticides, metals, microbiology), heatmaps and clustering.
Advanced statistics
Full descriptives, Pearson / Spearman correlations, percentiles, anomaly detection (Z-score), Mann-Kendall trend tests, searchable SANDRE reference.
Compliance & exceedances
CSP & EU 2020/2184 thresholds, transparency on the applied threshold source, town × parameter heatmap, recurrent exceedances.
PFAS: 2026 directive
Compliance tracking from sanitary control and accredited laboratory bulletins: radar, Σ4 / Σ20 sums, rankings by compound, evolution.
Forecast & early warning
Holt-Winters smoothing (trend + seasonality), Theil-Sen fallback for short series, 95% confidence interval, exceedance probability and estimated time to threshold.
Expert view
Water Quality Index (WQI), regulatory-tightening simulator, treatment-cost estimator, upstream / downstream model.
AI assistant
Natural-language analysis, charts generated on demand in the chat, molecule cards with 2D structure, streaming answers.
Reports & standards
Executive & technical PDF reports, multi-sheet CSV / Excel exports, comparison against WHO and US EPA standards.
The VizO copilot
In natural language, the copilot executes real actions inside the application. It doesn’t just describe a data point: it opens it, filters it, restitutes it.
Methodological rigour
VizO never replaces an official verdict: it clarifies and anticipates it. Any method specific to VizO is explicit, versioned and presented as secondary.
ARS compliance first
VizO’s own indices are displayed next to the official verdict, never in its place.
Threshold ≠ quantification limit
A strict distinction between the regulatory threshold and the laboratory’s quantification limit, avoiding classic false positives (e.g. the 200 µg/L aluminium threshold confused with its ≈10 µg/L LQ).
Explainable score
The A-to-E quality score breaks down and justifies itself online, component by component: never a black box.
Versioned thresholds
Public Health Code and EU Directive 2020/2184, with traceability of the threshold source applied to every exceedance.
Water matrices
The same sensor and the same analysis engine apply to every matrix: from catchment to discharge, from the tap to the shoreline. The regulatory context changes, never the technology.
Drinking
From catchment to tap: metals, nitrates, chlorine and organic matter at the sensor; PFAS and microbiology compliance tracked via the laboratory. Verdicts under the Public Health Code & EU Directive 2020/2184.
metals · nitrates · chlorine
Surface
Rivers, reservoirs, raw-water intakes: upstream pressure, hydrobiology, seasonality and resource trends.
Mann-Kendall trend
Wastewater
Plant inlet and outlet: loads, treatment yield, self-monitoring and discharge compliance.
inlet → outlet
Shellfish
Production areas: microbiological quality, health-classification monitoring, early warning on contamination episodes.
class A · B · C
Pools
Public and collective pools: disinfection, by-products (chloramines, THMs), pH: continuous monitoring rather than scattered readings.
continuous monitoring
Indicative list. The matrix sets the regulatory context and the applied thresholds, not the hardware architecture.
Data chain
Sensor
Embedded measurement & analysis
LoRaWAN
Standard public network
VizO
Collection & AI
Restitution
Dashboards · API · CMMS/GIS
Sovereignty
Control of operational data is decisive over a long concession. We embed it in the design, not in a promise.
Open protocol
Natively standard LoRaWAN communication, integrable into the public network, with no proprietary protocol, unlike captive remote-reading.
Data ownership
Data is owned by the authority, portable at any time. The hardware is an interoperable returnable asset.
Models in escrow
Source code and AI models are deposited in escrow, triggered on failure: reversibility is structural.
Reversibility
No captivity at the meter or the platform: at any time, the authority can take back control of its data and hardware.
Compliance
Federated authentication (SSO), sessions revocable at any time (user, organisation or platform), per-organisation audit log: an approach aligned with ANSSI and CNIL recommendations.
The contrast
The difference is not visible on installation day. It is lived across the whole concession.
Drop! platform
Protocol
Standard LoRaWAN, public network
Data
Owned by the authority, portable
Models & code
Deposited in escrow
Capabilities
Quality + hydraulics + metering
Reversibility
Structural, at any time
Hardware
Interoperable returnable asset
Captive remote-reading
Protocol
Proprietary protocol
Data
Hosted by the outgoing operator
Models & code
Black box
Capabilities
Metering only
Reversibility
Captivity at renewal
Hardware
Lock-in at the meter
What sets us apart
Drop! sits where others stop: continuous, multi-matrix vigilance that stays your property.
Versus point-in-time analyses
The laboratory measures a few times a year, after the fact. Drop! watches continuously and directs accredited analysis to the right moment and place, without ever replacing it.
Versus single-parameter probes
A probe means one parameter, one point, one silo. Drop! means a common hardware platform, several capabilities and matrices, AI analysis and a unified restitution.
Versus proprietary solutions
Closed protocol, data hosted by the operator, black box. Drop!: standard LoRaWAN, portable data, models in escrow, structural reversibility.
Versus spreadsheets and exports
The data exists but lies dormant. VizO applies the thresholds, detects trends, forecasts breaches and produces the report, automatically.
Interoperability
VizO does not replace your tools: it feeds them. Interfaces are specified jointly with your systems and those of the operator or authority.
Next
Demonstration on a reference site, interface scoping workshop: let’s organise the trial on your network.