Clean Water. Safe Pressure.
Zero Violations.
EurEau reports that European water utilities lose an average of 23% of treated water to leakage , ranging from 6% in the best-performing networks to over 40% in others. Meanwhile, the revised EU Drinking Water Directive (EU 2020/2184) introduces risk-based monitoring requirements, new parametric values for PFAS and endocrine disruptors, and lead remediation obligations under Article 10. Ageing distribution mains across Europe average 40-60 years old, with main burst rates varying from 10 to 40 per 100 km per year. Argus unifies water quality monitoring, pressure management, leak detection, and compliance into one operational intelligence platform that cuts non-revenue water by 30-40% and automates every regulatory filing.
From treatment works to customer tap, Argus provides the intelligence that keeps water safe, systems efficient, and your compliance team ahead of every deadline , EU Drinking Water Directive, Urban Wastewater Treatment Directive, Water Framework Directive, and national competent authority reporting included.
Every Parameter. Every Sample Point. Continuous Compliance.
Water quality violations carry consequences that no utility manager wants to face: mandatory public notification for parametric value exceedances, potential infringement proceedings, loss of public trust, and , in worst cases , the kind of public health crisis that damages reputations irreparably. Argus monitors treatment works effluent, distribution system sample points, and customer tap readings continuously against all EU Drinking Water Directive (EU 2020/2184) parametric values, including the newly regulated PFAS and endocrine disruptors. When a parameter trends towards its parametric value, your operations team knows hours before an exceedance occurs , not days after.
pH Level
Measure of water acidity or alkalinity. EU Drinking Water Directive indicator parameter range: 6.5-9.5. Critically important for corrosion control , pH below 7.0 accelerates lead and copper leaching from service lines and premise plumbing. Argus monitors continuously and alerts when pH trends outside the optimal corrosion control band.
Free Chlorine
Residual disinfectant level in the distribution system. EU practice typically targets lower residual levels than North America, with many Member States requiring minimum 0.1 mg/L at extremities of the network. Dead-end mains and low-flow areas are chronic problem spots , Argus flags decaying residuals before they breach the operational minimum.
Turbidity
Cloudiness of water caused by suspended particles. EU Drinking Water Directive indicator parametric value: 1.0 NTU at the point of compliance. Treatment works target: typically below 0.1 NTU at filter outlet. Turbidity is the canary in the coal mine , spikes indicate filter breakthrough, main bursts, or source water contamination events. Argus triggers alerts at 0.5 NTU, giving operators time to respond.
Lead
EU Drinking Water Directive parametric value for lead: 10 ug/L (reduced from 25 ug/L), with a further reduction to 5 ug/L by January 2036. Article 10 requires Member States to identify and progressively replace lead service connections. No safe level of lead exposure exists , especially for children. Argus tracks every tap sample and flags trends towards the parametric value months in advance.
Nitrate
Nitrate parametric value: 50 mg/L (as NO3). Acute health risk , causes methaemoglobinaemia (blue baby syndrome) in infants. Sources include agricultural runoff and fertiliser contamination, particularly in groundwater abstraction zones. Seasonal variation is common. Argus tracks seasonal patterns and triggers early warnings when nitrate levels trend upward during spring application periods.
Pressure Where You Need It. Leak Detection Where You Do Not.
Distribution system pressure is the invisible driver of water loss and infrastructure damage. Every 0.7 bar of excess pressure increases leak flow rates by approximately 7% and accelerates pipe deterioration. Conversely, pressure below 1.5 bar creates health hazards through potential backflow and cross-connection contamination. Argus monitors pressure zones in real time, integrates with PRV and booster pump SCADA, and deploys district metered area (DMA) water balance analysis per IWA best practice to detect leaks that acoustic methods miss , including the low-flow leaks on plastic pipe that cost utilities millions in non-revenue water annually.
Pressure Zone 1 - Low Elevation
Pressure Zone 2 - Mid Elevation
Pressure Zone 3 - High Elevation
Leak Detection Status
Pump Station Status
Every Hydrant. Every Inspection. Every Flow Test.
Fire hydrants are a critical element of community fire protection infrastructure across Europe. National fire safety regulations and municipal concession agreements typically mandate annual inspections and regular flow testing. Most water operators manage hydrant programmes in spreadsheets, losing track of overdue inspections until a fire brigade complaint arrives. Argus tracks every hydrant through its complete lifecycle , installation, inspection, flow test, maintenance, and replacement , with automated scheduling that ensures zero hydrants fall through the cracks.
Annual Inspection Cycle
Condition Ratings
Fully operational, all outlets and caps functional, colour-coded per flow test results, clear access maintained
Minor cosmetic issues, fully functional, flow test within expected range for main size
Maintenance needed , stiff operating mechanism, minor weeping, or reduced flow capacity. Repair scheduled.
Significant deficiencies , broken outlet cap, inoperable valve, or severely reduced flow. Repair prioritised. Fire brigade notified.
Non-functional , frozen barrel, broken stem, or no flow. Isolated and marked per local fire brigade protocol. Replacement ordered.
When the Regulator Asks, Your Data Is Already Prepared.
European water utilities operate under a comprehensive regulatory framework spanning EU directives and national legislation. The EU Drinking Water Directive (EU 2020/2184) establishes parametric values and risk-based monitoring requirements. The Urban Wastewater Treatment Directive (91/271/EEC) governs collection and treatment. The Water Framework Directive (2000/60/EC) sets environmental quality standards. National competent authorities add their own requirements , in some Member States, additional parameters beyond the EU minimum are regulated. Argus automates compliance tracking, report generation, and audit preparation so your compliance officer spends time on water quality, not paperwork.
EU Drinking Water Directive (EU 2020/2184)
Parametric values for chemical, microbiological, and indicator parameters in water intended for human consumption. Risk-based approach from catchment to tap per Article 7. New monitoring for PFAS (sum of PFAS: 0.50 ug/L), Bisphenol A, beta-estradiol, and nonylphenol. Lead parametric value reduced to 10 ug/L (5 ug/L by 2036). Public information access per Article 16.
Continuous parametric value monitoring with automated exceedance detection. Risk-based water safety plan documentation per Article 7. Compliance calendar tracking all monitoring schedules across national transposition requirements. Lead service line inventory management. Public information portal data feeds for Article 16 transparency. Reports formatted for your specific national competent authority template.
Urban Wastewater Treatment Directive (91/271/EEC)
Collection, treatment, and discharge requirements for urban wastewater. Sensitive area designation and nutrient removal requirements. Self-monitoring and reporting obligations. Currently under revision with proposed stricter limits and energy neutrality targets.
Automated discharge monitoring against consent limits. Nutrient removal performance tracking (nitrogen, phosphorus). Self-monitoring compliance calendar with automated sampling reminders. Discharge quality reporting for national environmental agencies. Energy consumption monitoring for energy neutrality benchmarking.
EurEau / IWA Benchmarking
EurEau and IWA water loss benchmarking using the Infrastructure Leakage Index (ILI) methodology and district metered area (DMA) water balance analysis. IWA performance indicators for water supply services. Non-revenue water component analysis per IWA water balance methodology.
Automated IWA water balance calculations using production metre data, customer billing data, and system attributes. Real-time non-revenue water dashboard with ILI calculation. Component analysis separating real losses, apparent losses, and unbilled authorised consumption. Economic Level of Leakage modelling to optimise leak detection investment. Benchmarking reports positioning your utility against EurEau peer data.
Water Framework Directive (2000/60/EC)
Environmental quality standards for surface water and groundwater bodies. Abstraction licence compliance. Source water protection zone monitoring. River basin management plan contributions.
Source water quality monitoring against WFD environmental quality standards. Abstraction volume tracking against licence limits. Source protection zone incident logging. Data feeds for river basin management plan reporting requirements.
National Competent Authority Reporting
Periodic compliance returns, annual water quality summaries, incident reports, and audit preparation as required by your national competent authority , whether the DWI (England/Wales), SEPA (Scotland), EPA (Ireland), ARS (France), or other Member State authorities.
Automated compliance return generation populated from SCADA and laboratory data. Audit preparation packages with pre-populated documentation. Incident reporting workflows meeting national notification timescales. Electronic submission support for authorities with online reporting portals.
Safe Water Requires Intelligence That Never Takes a Day Off.
EurEau estimates that European water infrastructure requires EUR 500 billion in investment over the next 20 years. Lead service connections remain in millions of European properties. Climate change is degrading source water quality with more frequent algal blooms, drought-driven concentration spikes, and agricultural pollution events. The revised EU Drinking Water Directive introduces the most significant new compliance obligations in two decades. Your compliance team cannot afford to manage this complexity with spreadsheets and manual processes.
Argus transforms water utility operations from sample-based snapshots to continuous monitoring, from reactive main burst response to predictive pipe condition management, and from manual compliance paperwork to automated regulatory reporting , so your team focuses on delivering safe water, not assembling documentation.
The water that communities depend on deserves protection that monitors every parameter, every pressure zone, every hydrant , 24 hours a day, 365 days a year.
Talk to a Water Utility SpecialistDeployed on-premise or in EU sovereign cloud. Integrates with existing SCADA (Siemens, ABB, Schneider Electric), LIMS, GIS (Esri Water Utilities, Hexagon), CMMS (SAP PM, IFS, Maximo), and CIS/billing systems. We serve municipal water companies, regional water authorities, and private water operators across Europe. Headquartered in Dublin, Ireland , your data stays in the EU.