Independent Advice for Complex Water Hygiene Issues
Not every water hygiene problem can be solved by following a standard checklist.
Buildings change, systems are modified, monitoring results fluctuate and unusual findings can sometimes require a more detailed investigation.
Source Water Compliance provides independent water hygiene consultancy for organisations that need practical, technically informed advice on Legionella control and wider water hygiene management.
We can support facilities teams, Responsible Persons, property managers, landlords and contractors with everything from reviewing a single issue to helping resolve complex problems across an entire site or portfolio.
When Water Hygiene Consultancy Can Help
Consultancy support can be useful where there is uncertainty about the condition, operation or management of a water system.
This may include situations such as:
- Repeated temperature failures
- Positive Legionella results
- Persistent microbiological issues
- Poor hot water circulation
- High cold water temperatures
- Stagnation
- Complex or unusual water systems
- Conflicting contractor recommendations
- Major refurbishment
- Building closures or reoccupation
- Changes in occupancy
- New plant installations
- Redundant or legacy systems
- Unclear responsibilities
- Outdated water hygiene documentation
- Multiple outstanding remedial actions
The objective is to understand the underlying issue and identify a proportionate way forward.
Independent Technical Review
Where several contractors or stakeholders are involved, it can sometimes be difficult to establish what actually needs to be done.
Source Water Compliance can provide an independent review of:
- Legionella risk assessments
- Written Schemes of Control
- Water hygiene monitoring
- Sampling results
- Schematic drawings
- Contractor recommendations
- Remedial proposals
- Existing maintenance programmes
- System modifications
- Previous incident history
This can help clients distinguish between necessary action and work that may not be justified by the actual level of risk.
Investigation of Repeated Temperature Failures
Repeated temperature failures often indicate an underlying system problem.
Simply recording the same failure every month does not resolve it.
Consultancy support can help investigate causes such as:
- Poor hot water circulation
- Incorrect balancing
- Undersized or poorly performing plant
- Heat gain into cold water services
- Inadequate insulation
- Excessive pipe runs
- Low water turnover
- Oversized storage
- Incorrect thermostat settings
- Changes in occupancy
The aim is to identify the cause rather than repeatedly treating the symptom.
Support Following Positive Legionella Results
A positive Legionella result should be interpreted within the wider context of the water system.
Relevant factors can include:
- Sampling location
- Whether the sample was pre- or post-flush
- Organism count
- System temperatures
- Previous results
- Water turnover
- Occupancy
- Susceptibility of those exposed
- Existing control measures
- System configuration
Consultancy support can help determine whether further investigation, targeted sampling, cleaning, disinfection, system modification or changes to the control programme may be appropriate.
A microbiological result should not be considered in isolation from the physical system and its management.
Review of Water Hygiene Management
A strong water hygiene programme requires more than individual tasks being completed.
It needs effective coordination between:
risk assessment → Written Scheme → monitoring → maintenance → corrective action → review
Source Water Compliance can review the complete management system to identify whether these elements are working together effectively.
This is particularly useful where a site has good documentation but ongoing operational problems, or where different contractors manage different parts of the programme.
Complex Water Systems
Some buildings contain systems that require more detailed consideration.
These may include:
- Multiple incoming water supplies
- Large cold water storage systems
- Several calorifiers
- Multiple hot water circulation zones
- Complex booster arrangements
- Multiple buildings
- Remote plant
- Legacy pipework
- Mixed central and point-of-use hot water
- High levels of system modification
- Large numbers of low-use outlets
Consultancy can help facilities teams understand how these systems interact and where control weaknesses may exist.
HSG274 Part 2 notes that water-system design, subsequent modifications and stagnation can all influence Legionella risk, and that systems should be managed and maintained accordingly.
Refurbishment and System Changes
Water systems often change during refurbishment.
New kitchens, showers, washrooms, plant and tenant facilities can be added while older pipework remains in place.
This can introduce:
- Dead legs
- Redundant branches
- Poor circulation
- Excessive pipe runs
- Low-use outlets
- Incorrectly positioned equipment
- New stagnation risks
Consultancy support during or after refurbishment can help identify these issues before they become embedded within the system.
Building Closures and Reoccupation
Extended periods of reduced occupancy can significantly change the way a water system behaves.
Examples may include:
- Vacant office floors
- School holidays
- Hotel closures
- Refurbishment
- Unoccupied residential units
- Seasonal buildings
- Temporarily closed wards or departments
Consultancy support can help develop practical arrangements for:
shutdown → flushing → monitoring → recommissioning → reoccupation
The exact approach should reflect the system and duration of closure rather than relying on a generic process.
Roles and Responsibilities
Water hygiene management can become complicated where several organisations share responsibility.
For example:
landlord → managing agent → FM provider → water hygiene contractor → tenant
Where responsibilities are unclear, important tasks can be missed.
HSE guidance gives Approved Code of Practice status to the role of the responsible person, the control scheme and review of control measures, highlighting the importance of competent management and clearly defined responsibilities.
Source Water Compliance can help review and clarify responsibilities across the management structure.
Contractor and Remedial Advice Review
Clients are sometimes presented with large remedial programmes following an assessment or contractor inspection.
An independent review can help establish:
- Whether the work is supported by the risk assessment
- Whether the proposed solution addresses the underlying issue
- Whether simpler options may exist
- Which actions should be prioritised
- Which recommendations require further investigation
This can be particularly valuable before significant expenditure is approved.
Consultancy for Higher-Risk Environments
Some premises require additional consideration because the people exposed may be particularly susceptible or the water systems are more complex.
This can include:
- Healthcare premises
- Higher-risk clinical environments
- Residential care settings
- Specialist education facilities
- Large hotels
- Complex industrial sites
In these environments, consultancy can support more detailed review of control measures, sampling strategies, system performance and management arrangements.
Multi-Site and Portfolio Support
Source Water Compliance can also support organisations responsible for multiple properties.
Consultancy services may include:
- Portfolio compliance reviews
- Standardisation of procedures
- Review of risk-assessment programmes
- Written Scheme reviews
- Contractor performance reviews
- Sampling-strategy reviews
- Recurring-issue analysis
- Mobilisation support
- Prioritisation of remedial works
- Independent technical advice
This can help identify whether recurring problems are isolated to individual properties or reflect a wider management issue.
Practical Advice, Not Unnecessary Work
Our consultancy approach is independent and proportionate.
The aim is not to generate unnecessary remedial work.
It is to establish:
what the problem is
why it is happening
what actually needs to be done
what should be prioritised
That gives clients a clearer basis for making technical and financial decisions.
Working in Accordance With Legionella Guidance
Our consultancy takes account of applicable guidance including:
HSE Approved Code of Practice L8 – Legionnaires’ disease
HSG274 – Legionnaires’ disease: Technical guidance
HSG274 provides practical guidance for dutyholders, employers and those in control of premises on managing the risk of exposure to Legionella.
Supporting Services
Water hygiene consultancy can be provided alongside our:
Legionella Risk Assessments
Written Schemes of Control
Water Hygiene Audits
Water Hygiene Monitoring
Water Hygiene Maintenance & Servicing
Water Sampling & Microbiological Testing
Water System Schematic Drawings
That completes your full service structure nicely.
Speak to a Water Hygiene Consultant
If you have a water hygiene issue that requires investigation, independent technical advice or a second opinion, Source Water Compliance can help.
Whether the issue relates to a single outlet, a complex water system or an entire property portfolio, we can review the available information and help determine the most appropriate next steps.