Legionella Risk Assessment
in Northfleet

Legionella control, based on a Legionella risk assessment in Northfleet, is the key aspect of the ‘Responsible Persons’ duties regarding the supply of wholesome water and L8 compliance.

There are many elements to a comprehensive Legionellosis risk assessment in Northfleet but the following are essential to achieve L8 compliance: –

  • Site Identification and Governance
  • Executive Summary – Outlining management actions required
  • Contact, Responsibilities and Escalation Procedures
  • Remedial Actions – Needed to bring the site into compliance
  • Ongoing Monitoring Scheme – Actions required to maintain hygiene and restrict bacterial growth
  • Plant Identification and Assessment
  • Equipment Register
  • Schematic Diagram
Temperature regulation
Water Systems Dosing

Continuing Compliance

Following on from Legionella risk assessments in Northfleet, L8 compliance is achieved through provision of the services outlined below. As members of the Legionella Control Association, Ara Environmental Ltd offers a complete package of measures designed to ensure these responsibilities are fully met and that the risk of a Legionnaires’ disease outbreak is managed:-

  • Legionella risk assessments in Northfleet;
  • Cleaning and chlorination to the standards in ACOP L8 HSG 274 and PD 855468;
  • Legionellosis management – The regulation of all related diseases including Pontiac Fever;
  • Bacterial sampling & analysis at a UKAS laboratory;
  • Water systems monitoring;
  • Pool monitoring
  • Chemical Supply;
  • Test Equipment Supply;
  • Infrastructure Refurbishment;
  • Legionnaires’ Disease Training;
  • Supply of Site Log Books


There is plenty of legislation concerning environmental hazards from the Management of Health and Safety at Work 1999, through COSHH and RIDDOR. However, these can be vague as to exactly what specific actions should be taken. The one document that sums up the requirements, and is used as the basis for Legionella risk assessments in Northfleet, is ‘Legionnaires’ Disease: The control of legionella bacteria in water systems’ – Approved Code of Practice and Guidance L8 (Fourth edition 2013).


  • Between 200 and 250 people die in Britain each year from Legionnaires’ disease although it is accepted that this is an under estimate as the symptoms are often mistaken for flu.
  • Management measures are generally straightforward and involve repair to the infrastructure and temperature monitoring. In more difficult cases additional governance measures such as low level biocide dosing can be employed.
  • Feedback and evaluation, usually through bacterial sampling, enables oversight of the effectiveness of the programme