Water hygiene practice for the EUSR Blue Card
Ten free mock tests for the EUSR National Water Hygiene assessment — 25 questions each, every area, marked instantly with an explanation for every answer.
No account needed to practise. The card course is online, done today.
Prefer it done for you? The EUSR course, assessment & Blue Card, all sorted — £179.99. In partnership with The Builders Academy.
The National Water Hygiene assessment at a glance
The EUSR National Water Hygiene "Blue Card" is what UK water companies ask for before you work on the clean, drinking-water network. You get it by passing a short EUSR-approved course and assessment.
Required for "Restricted Operations" — accessing treated water sites and working on potable water mains. Our practice is built on the EUSR National Water Hygiene scheme.
Every area on the assessment
All ten free mocks draw from all of these, so a weak area shows up as a weak area, not as a gap in the practice set.
Practise free, then get carded
- 25 questions in 30 minutes
- Every area, real proportions
- Explanation for every answer
- Per-area breakdown at the end
- No account, no card details
- The full EUSR-approved course (~3 hours, online)
- The 25-question assessment, instant result
- A free retake if you don't pass first time
- Your digital Blue Card, usually within 48 hours
- 3-year EUSR registration
In partnership with The Builders Academy. Delivered by them.
Not sure how the Blue Card works?
The complete guide covers what the EUSR National Water Hygiene card is, who needs it, the course and assessment, how drinking water is protected, what it costs and how to renew.
Read the complete guideWater hygiene questions, answered
It is the EUSR (Energy & Utility Skills Register) National Water Hygiene card. UK water companies require it before you carry out 'Restricted Operations' — accessing treated water sites or working on the clean, drinking-water network. You get it by passing a short EUSR-approved course and assessment.
It is a 25-question multiple-choice test, usually 30 minutes, with an instant result and a free retake if you don't pass first time. It covers personal hygiene and health, contamination and its prevention, hygienic working, disinfection of mains and the law.
EUSR registration lasts three years. After that you re-take the training and assessment to renew.
No. The course is open to anyone aged 16 or over with valid ID, and assumes no prior knowledge.
No — they are original questions written to the same standard as the EUSR National Water Hygiene scheme so you can revise the material and get used to the format. The real assessment is sat with an approved provider.
Work on the clean (drinking) water network where contamination could reach the public supply — for example water treatment works, service reservoirs, pumping stations, wells, springs, boreholes, and the network of water mains and service pipes. Anyone doing this work, whether or not they touch the water, needs the card.
Prices vary by provider. A fully online course including the assessment and EUSR registration is commonly around £180. Classroom courses can cost more once you add venue and trainer time.
It's a short course — roughly half a day in a classroom, or about three hours online at your own pace. The assessment is 25 multiple-choice questions in about 30 minutes.
EUSR now issues the National Water Hygiene registration as a digital card through the Vircarda app on your phone, so it can't be lost or forgotten. Some providers offer an optional plastic card as an add-on.
No. The CSCS card covers general construction health and safety (via the CITB HS&E test). The EUSR National Water Hygiene Blue Card is specifically for working safely on the clean water network. Some people working on water infrastructure need both.
Most providers include a free retake, and the pass mark is achievable with a little revision — which is exactly what the free mock tests here are for.