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Last edited 18 Nov 2021
Planning for water safety in buildings and workplaces
Some buildings also have decorative water features such as fountains and industrial features such as vehicle washing facilities, landscape watering, and leisure facilities such as pools and spas. Additionally, water systems may be installed or brought into the building by users, for example drinking water dispensers and humidifiers.
- Assessing the system to determine whether the provider as a whole can deliver water of a sufficient quality.
- Monitoring control measures in the supply chain that are of particular importance in securing water safety.
- Adopting a management approach that describes the actions to be undertaken from normal conditions to extreme events and relays how they will be communicated to the various stakeholders.
Each of these three components were integrated into a British Standard, BS 8680:2020 Water quality. Water safety plans. Code of practice. The standard was published in May 2020.
This code of practice follows the aforementioned WHO guidance and integrates some specificities encountered in the UK legislation and regulations (and therefore goes beyond the simple legionella risk assessment encountered in most buildings and workplaces). It looks at all water systems, assessing their risk, monitoring the identified mitigation measures for these risks and outlining the implementation of an adequate management scheme.
 Water Safety Plan (WSP) and Water Safety Group (WSG)
The code of practice is wrapped up into a Water Safety Plan (WSP) supported by a Water Safety Group (WSG). This approach holistically covers the entire lifespan of a building from its conception and design up to its alteration or decommissioning.
- Assessing the water systems. What systems are present? Where are they? Who uses them?
- Monitoring the control measures. How to monitor? When to inspect?
- Managing with adequate communication. Who is responsible? What decisions are made?
To sustain this plan would require suitable people to be involved during these various steps. These people would form part of the water safety group. Some people may take part permanently due to their level of responsibility associated with the water systems (for example the building owner) and some may take part only occasionally (for example external consultants or water experts).
Failures are often encountered in a building during the first couple of years of operation. The operation team or building owner blames the design and construction team for the failures, and the design and construction team blames the operator or owner for not having correctly run and maintained the systems in their early life. Clearly all these parties should take part in the WSG and work together in producing a realistic WSP, otherwise it is a recipe for disaster!
One element the BS 8680 code of practice recommends for improving collaboration between various parties and stakeholders is the use of a Soft Landings approach. The BSRIA Soft Landings Framework can be found in the guidance document BG 54/2018 which is free to download to all members on the BSRIA website.
This approach will assist project teams, clients and building owners in the development of a WSP, identification of persons to include in a WSG and emphasises the importance of a planned handover when the building is completed.
Another element the BS 8680 code of practice stresses in the development of a successful WSP is to focus not solely on drinking water quality but also on the overall safety of other water systems in a building.
For instance, a lack of heating in a public place may result in visitors being unable to attend during the winter period (and resulting in reputation damage). Another problem could be a lack of cooling, which may be critical to industrial units (and may have negative consequences related to their safe operation). Both examples ultimately have a financial impact on the business activity either directly (the industrial unit having to stop) or indirectly (the public not visiting shops/retailers).
As with any plan, if it is not correctly prepared by competent people, it is likely to fail, possibly with severe consequences. This is why it is important to have a trail to follow and also to have suitable guidance to help avoid pitfalls.
Finally, the success of the WSP should be regularly evaluated, members of the WSG should be rewarded for their effort and the whole process should be reviewed for improvements. In other words, it is advisable to follow the process defined in BG 74/2019 Success Criteria for Soft Landings Projects.
- Back to the workplace: are you prepared?
- BS 8680:2020 Water quality. Water Safety Plans. Code of practice.
- BSRIA articles on Designing Buildings Wiki.
- Building performance evaluation.
- Commissioning building systems.
- Defects liability period.
- Drinking water quality.
- Soft landings.
- Soft landings and business-focused maintenance.
- Soft Landings for owners.
- Water safety plan WSP.
- British Standard BS 8680:2020 Water quality. Water safety plans. Code of practice.
- BSRIA Guide BG 74/2019 Success Criteria for Soft Landings Projects.
- BSRIA Guide BG 29/2020 Pre-Commission Cleaning of Pipework Systems 6th edition.
- BSRIA Guide BG 50/2013 Water Treatment for Closed Heating and Cooling Systems.
- BSRIA Guide BG 33/2014 Illustrated Guide to Hot and Cold Water Services.
- BSRIA Guide BG 53/2016 Business-Focused Maintenance.
- BSRIA Guide BG 54/2018 Soft Landings Framework 2018.
- BSRIA Guide BG 57/2015 Legionnaires' Disease - Risk Assessment.
- BSRIA Guide BG 58/2015 Legionnaires' Disease - Operation and Maintenance Log Book.
- BSRIA Guide BG 2/2010 Commissioning Water Systems.
- World Health Organization, Water safety in buildings, March 2011.
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