Free water hygiene practice
Over 1,000 practice questions for the EUSR National Water Hygiene (Blue Card) assessment — ten full mock papers and practice by topic, marked instantly with every answer explained.
Full mock assessments
Ten complete papers, each 25 questions in 30 minutes, drawn from all twelve topics — the same length and pace as the real EUSR assessment, marked instantly with a per-topic breakdown.
Practice by topic
Drill a single area, untimed, with 20 questions at a time from the full bank. Ideal for shoring up a weak spot before you sit the real thing.
The full EUSR National Water Hygiene course, assessment and Blue Card — online today for £179.99.
See the Blue Card courseWater 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.