Skip to content
envirisk

Legionella guidance

Technical Guidance

The HSE guidance every duty holder should read, from the brief guide to ACoP L8 and HSG274.

Legionnaires' Disease

Technical guidance

We would strongly recommend that you take time to read the leaflet which defines your Legionella obligations, as a duty holder, which you can obtain from the Health and Safety Executive website.


Go to: Legionnaires’ disease – A brief guide for duty holders


Further guidance for duty holders, giving practical advice on the legal requirements of the Health and Safety at Work etc Act 1974, the Control of Substances hazardous to Health Regulations 2002 concerning the risk from exposure to legionella and guidance on compliance with the relevant parts of the Management of health and Safety at Work Regulations 1999 is in three parts:

Part 1: The control of legionella bacteria in evaporative cooling systems (PDF)

Part 2: The control of legionella bacteria in hot and cold water systems (PDF)

Part 3: The control of legionella bacteria in other risk systems (PDF)

Fully compliant L8 legionella awareness training

If you need staff training, we offer Legionella Awareness Training ACOP L8, which is available as a one-day classroom training course. Please contact us for more information.

To understand and help you comply with your legal duties, duty holders should familiarise themselves with the HSE Approved Code of Practice (ACOP) and guidance on regulations:

HSE Legionella ACOP L8

How we can help

Our services

Legionella Risk Assessment

A complete survey of your premises by a qualified assessor, then a bespoke report that shows your level of risk and exactly what to do about it.

  • Full site survey of your water systems
  • Risk rating and recommendations
  • Asset register and schematic drawings
  • A scheme of control to follow

Find out more

Monitoring Services

Routine monitoring that keeps your water system compliant with ACoP L8 and HSG274, from monthly site visits to annual audits.

  • Monthly water system monitoring
  • Quarterly shower and spray outlet descaling
  • Tank, cylinder and TMV checks
  • Site logbook, also available electronically

Find out more

Remedial Works & Servicing

Skilled engineers to put right the faults and risks found in your water system or raised by your risk assessment.

  • Remedial works raised by risk assessments
  • Servicing and maintenance of plant and fittings
  • TMV servicing
  • Systems left compliant, safe and efficient

Find out more

Water Sampling

Water samples tested in UKAS accredited laboratories, taken by our engineers on site or with a DIY postal kit.

  • UKAS accredited laboratories
  • Legionella, TVC, Coliforms, E. coli and Pseudomonas
  • On-site sampling or a postal kit
  • Positive results reported immediately

Find out more

Tank & System Disinfection

Cleaning and disinfection of tanks, cylinders and whole water systems, carried out in line with ACoP L8 and BS 8558:2015.

  • Cold water storage tank cleaning
  • Full hot and cold system disinfection
  • Calorifier and water heater descaling
  • Disinfection certificate and logbook update

Find out more

Get a free, no-obligation quote

Tell us about your building and we'll reply with a quote and our availability.

CallFree quote