- Audience
- Facility managers, hotels, resorts, spas, maintenance providers, labs and risk teams
- Region
- Spain / European Union / Global buildings
- Reading time
- 15 min
Table of contents
- Executive summary
- Technical context
- Operational diagram
- Comparison table
- Decision matrix
- Downloadable checklist
- Related AquaVerify products
- Related sectors
- Recommended next step
- FAQ
- Official references
Executive summary
- Facilities need water risk management that covers assets, points, suppliers, laboratories, corrective actions and inspections.
- Legionella control depends on a plan, not on isolated test results; sampling and actions must be linked to asset context.
- Terminal points, DHW loops, deposits, spas, pools and aerosol-generating equipment require different records and response rules.
- Digital traceability helps multi-site teams maintain evidence across maintenance, laboratory reports and follow-up actions.
- AquaVerify can support routine water evidence workflows, while Legionella-specific analytical requirements remain method and laboratory dependent.
Technical context
Asset-based water risk
A building is a network of assets: hot water, cold water, deposits, terminal points, cooling or aerosol equipment, pools and spas. Each asset needs its own risk context, sampling logic and corrective-action route.
Legionella evidence is a workflow
A laboratory result is only one part of the file. A stronger record includes asset ID, point, temperature or operational data, maintenance action, supplier evidence, laboratory report and follow-up decision.
Multi-site control
Hotels, resorts, campuses and operators with multiple locations need comparable records. A standard digital workflow reduces inconsistent forms and helps inspections focus on evidence rather than reconstruction.
Operational diagram
Comparison table
| Asset / point | Risk context | Evidence required | Digital record |
|---|---|---|---|
| DHW loop | Temperature and stagnation risk | Temperature, maintenance, sample result | Asset history |
| Terminal shower | Aerosol exposure point | Point ID, use status, lab result | Point record |
| Spa or jacuzzi | Aerosol and warm water risk | Treatment, maintenance, sampling, action | Inspection file |
| Deposit | Storage and sediment risk | Cleaning, disinfection, sample result | Supplier evidence |
| Multi-site portfolio | Inconsistent records | Standard plan, reports, deviations | Cloud dashboard |
Decision matrix
Use this matrix to decide which operational route should be activated before procurement, implementation or training.
| Asset / point | Risk context | Evidence required | Digital record |
|---|---|---|---|
| DHW loop | Temperature and stagnation risk | Temperature, maintenance, sample result | Asset history |
| Terminal shower | Aerosol exposure point | Point ID, use status, lab result | Point record |
| Spa or jacuzzi | Aerosol and warm water risk | Treatment, maintenance, sampling, action | Inspection file |
| Deposit | Storage and sediment risk | Cleaning, disinfection, sample result | Supplier evidence |
| Multi-site portfolio | Inconsistent records | Standard plan, reports, deviations | Cloud dashboard |
Downloadable checklist
- ✓ Create an asset inventory with unique point IDs.
- ✓ Classify aerosol-generating and high-risk points.
- ✓ Define sampling frequency and responsible supplier or team.
- ✓ Record maintenance, temperature and operational context.
- ✓ Link laboratory reports to asset records and actions.
- ✓ Track deviations, corrective actions and follow-up samples.
- ✓ Prepare inspection-ready evidence by site and asset.
Related AquaVerify products
Related sectors
Recommended next step
FAQ
Does AquaVerify replace a Legionella laboratory method?
No. Legionella-specific testing depends on the selected method and laboratory. AquaVerify supports water evidence workflows and traceability around the program.
Who benefits most from a digital record?
Multi-site operators, hotels, spas and facilities with multiple suppliers benefit from consistent asset-level records.
Can this support inspections?
Yes. A connected file helps demonstrate plan, sampling, reports, actions and follow-up without reconstructing evidence manually.
Official references
- Real Decreto 487/2022 — prevención y control de la legionelosis
- ISO 11731 — Water quality — Enumeration of Legionella
- ISO 19458 — Water quality — Sampling for microbiological analysis
- ISO 5667-1 — Water quality — Sampling — Guidance on sampling programmes and sampling techniques
- WHO — Water safety in buildings
- Real Decreto 3/2023 — criterios técnico-sanitarios de la calidad del agua de consumo en España
- Real Decreto 742/2013 — criterios técnico-sanitarios de piscinas