Wastewater treatment

Pulse Water are wastewater experts bringing considerable cost savings on day-to-day operations by implementing water reuse systems and waste-to-energy solutions

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Do I need testing, a legionella risk assessment or both?

Legionella testing, water testing or sampling is not to be confused with a legionella risk assessment. You are required by law to undertake a legionella risk assessment under the Health and Safety Legislation at Work Act 1974, COSHH and a number of other regulations where you can show you are working to comply with the HSE’s HSG 274 legionella guidelines, and ensure the successful control of legionella bacteria. Testing or sampling whilst not a legal requirement on it’s own, it plays an important role in determining how efficient a water system is managed. Your risk assessment may identify that sampling is required due to existing risks or as a control and management precaution. In this instance sampling then becomes a requirement from your assessment. Without an L8 risk assessment you will not know where and how many samples are required. And without water testing/sampling you cannot determine how affective your control and management is. These two actions therefore should be undertaken together, not necessarily at the same time but unison to effectively management your risk from legionella.

Cold Water Systems testing services include Legionella, e-Coli, total viable count (TVC), Pseudomonas, hard water, chlorine free, pH levels and more. Learn more about legionella testing. We only use UKAS approved laboratories giving you peace of mind that the test will be of the highest quality possible.

Legionnaires’ Disease

Legionella bacteria can be found in natural environments including ponds, rivers and lakes. The bacteria can also be supplied in small amounts within the mains water supply. Where there is water and the conditions of creating water droplets (aerosols), people using or within the area of these services may be at risk. It is this bacteria found in the water supply which is the cause of Legionnaires’ disease.

Legionnaires’ disease is a form of pneumonia, which can be fatal. The most at risk are the very old and the very young, the ill and smokers to name a few. Legionella bacteria can also cause other, less harmful illness such as Pontiac fever and Lochgoilhead fever, which can affect all people. The main route of infection is through inhalation, by inhaling airborne water droplets that contain Legionella. It cannot be spread from person to person. The majority of cases or outbreaks of the disease have been via domestic water services, evaporative cooling towers, and spa pools.

Conditions and contributing factors to its growth include:

  • Temperatures between 20-45°C
  • Available nutrients (including sediment, biofilm, algae, scale, rust, material, etc.)
  • Presence of biofilm on surfaces of water
  • Poor or inadequate management including training and awareness

Cost effective solutions

Pulse Water operate across the whole of the UK and provide specialist commercial and industrial water treatment services which enables wastewater to be re-used, ultimately saving you money.

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