Legionella Risk Assessment Report Template

What This Report Covers

A legionella risk assessment report evaluates the risk of Legionella bacteria proliferating within a building's water systems — and documents the control measures needed to prevent exposure. Required under the Health and Safety at Work Act 1974 and the L8 Approved Code of Practice, this assessment applies to virtually every workplace, rental property, and public building in the UK. The report is essential for landlords, building managers, facilities teams, and duty holders who must demonstrate that water systems are properly managed. AnyInspect's AI-powered template produces a comprehensive, L8-compliant assessment — covering cold water storage, hot water systems, temperature monitoring, dead legs, and a full programme of control measures and monitoring schedules.

Key Report Sections

Water System Schematic

This section provides a clear overview of the building's entire water system — from the incoming mains supply through storage tanks, calorifiers, distribution pipework, and outlets. AnyInspect's AI constructs the system description from your walkthrough narration — capturing tank locations, capacities, pipework materials, and distribution arrangements. A well-documented schematic is the foundation of any legionella risk assessment — without it, identifying risk points is guesswork.

Cold Water Storage Assessment

Cold water storage tanks are one of the highest-risk components in any water system — particularly if they are poorly insulated, inadequately covered, or located in areas subject to heat gain. This section assesses tank condition, lid integrity, insulation, overflow and warning pipe arrangements, and inlet/outlet configurations. The report documents whether stored water temperatures remain below the critical 20°C threshold — above which Legionella can begin to multiply.

Hot Water System Assessment

The hot water system assessment examines the generation, storage, and distribution of hot water throughout the building. Key parameters include calorifier or cylinder temperatures, distribution temperatures at sentinel outlets, and the presence of thermostatic mixing valves (TMVs). AnyInspect's AI flags any areas where stored hot water falls below 60°C or distributed water drops below 50°C — both critical thresholds defined in HSG274 for Legionella control.

Temperature Monitoring Points

Effective legionella management depends on regular temperature monitoring at defined sentinel points — the nearest and furthest outlets from each hot water source, cold water storage tank temperatures, and incoming mains temperatures. This section identifies every monitoring point in the building, documents baseline temperatures recorded during the assessment, and establishes the ongoing monitoring regime — monthly for sentinel outlets, quarterly for other points.

Dead Legs & Low-Use Outlets

Dead legs — sections of pipework that are capped off or rarely used — present a significant legionella risk because stagnant water at ambient temperatures creates ideal conditions for bacterial growth. Similarly, low-use outlets such as guest bathrooms, seasonal shower facilities, or infrequently used basins require specific management. This section identifies every dead leg and low-use outlet in the system — with recommendations for removal, regular flushing, or other control measures.

Risk Rating & Control Measures

Each identified risk factor receives a rating — typically categorised as low, medium, or high — based on the likelihood of Legionella proliferation and the potential for human exposure. The control measures section then prescribes specific actions for each risk — from temperature adjustments and insulation improvements through to TMV servicing, tank cleaning, and the implementation of a comprehensive water safety plan. Every recommendation is prioritised and assigned a timeframe for completion.

Monitoring Schedule

The final section establishes the ongoing monitoring programme — a structured calendar of temperature checks, water sampling, tank inspections, TMV servicing, and system reviews. This schedule is not optional — L8 requires that duty holders implement and maintain a documented monitoring regime. AnyInspect generates the schedule automatically based on the risk ratings and system characteristics identified during your assessment.

How AnyInspect Generates This Report

Step 1: Record Your Walkthrough

Open AnyInspect and start a new legionella risk assessment. Begin at the incoming mains supply — narrating the supply arrangement, meter location, and any treatment systems. Move through the building systematically — describing cold water storage tanks, hot water generation equipment, distribution pipework, and outlets. Note temperatures as you measure them, describe the condition of tanks and insulation, and identify any dead legs or low-use outlets. The app records everything — video, audio, and your temperature readings — creating a complete audit trail of your assessment.

Step 2: AI Processes Your Recording

AnyInspect's AI pipeline transforms your walkthrough into a structured risk assessment. Deepgram transcribes your commentary — capturing temperature readings, equipment descriptions, and risk observations with precision. Google Gemini analyses the transcript and video frames against L8 and HSG274 requirements — mapping the water system, identifying risk points, calculating risk ratings, and generating control measures. The AI cross-references temperature readings against the 20°C and 60°C thresholds — automatically flagging any non-compliant values.

Step 3: Review & Generate Your Report

The completed assessment appears in your dashboard — with the water system description, risk ratings, control measures, and monitoring schedule all pre-populated. Review each section — verify temperature readings, confirm risk ratings, and adjust recommendations based on your professional assessment. Generate a professional PDF report that includes system schematics, photographic evidence, the complete risk register, and a ready-to-implement monitoring schedule. The report is formatted for immediate handover to the duty holder.

Compliance Standards

L8 Approved Code of Practice

L8 — Legionnaires' Disease: The Control of Legionella Bacteria in Water Systems — is the primary guidance document for legionella risk management in the UK. Published by the Health and Safety Commission, it sets out the duties of those responsible for the control of Legionella bacteria — including the requirement to conduct risk assessments, implement control measures, and maintain records. AnyInspect's template structure maps directly to L8's documentation requirements.

HSG274 — Legionnaires' Disease Technical Guidance

HSG274 provides detailed technical guidance supporting L8 — published in three parts covering evaporative cooling systems, hot and cold water systems, and other risk systems. Part 2 is most relevant to building assessments — specifying temperature thresholds, monitoring frequencies, and control measures for hot and cold water systems. AnyInspect's AI applies HSG274 temperature criteria and monitoring intervals automatically.

Health and Safety at Work Act 1974

The overarching legislation that places a general duty on employers and building owners to ensure — so far as is reasonably practicable — the health, safety, and welfare of persons affected by their undertaking. Legionella risk management falls squarely within this duty — and failure to conduct adequate risk assessments can result in prosecution under the Act. A properly documented AnyInspect report demonstrates that the duty holder has taken reasonable steps to identify and control legionella risks.

Why Use AnyInspect Instead of a Manual Template?

Legionella risk assessments are data-intensive — involving dozens of temperature readings, detailed equipment descriptions, and complex risk calculations across multiple water system components. Traditional paper-based or spreadsheet templates require surveyors to record temperatures by hand, sketch system schematics separately, take photographs on a different device, and then spend hours in the office collating everything into a coherent report. The opportunities for error — a transposed temperature reading, a missed dead leg, an inconsistent risk rating — are considerable.

AnyInspect consolidates the entire process into a single video walkthrough. As you move through the building — measuring temperatures and describing the water system — the AI captures every data point from your narration. Temperature readings are automatically checked against L8 and HSG274 thresholds. Dead legs and low-use outlets are catalogued and risk-rated. The monitoring schedule is generated based on the specific system characteristics you have documented — not pulled from a generic template.

The result is a more thorough assessment — completed in less time — with a consistency and accuracy that manual methods simply cannot match. And because AnyInspect stores the full video recording alongside the report, you have a complete, timestamped audit trail that stands up to regulatory scrutiny.

Related Templates

- Health & Safety Inspection Report Template — Legionella risk management is a core component of workplace health and safety — these assessments are often conducted in parallel.
- Asbestos Survey Report Template — Frequently commissioned alongside legionella assessments as part of a comprehensive building risk management programme.
- Decent Homes Assessment Report Template — The Decent Homes Standard requires that properties are free from Category 1 hazards — including legionella risks identified through HHSRS.
- Stock Condition Survey Report Template — Stock condition surveys assess building services including water systems — legionella risk assessments provide the detailed follow-up.