Wales
Welsh Water
What to Watch For
Historic mining activity left lead deposits in soil and old pipe networks. Soft, acidic water in these areas is particularly effective at dissolving lead into your supply.
Lead leaches into drinking water from old service pipes. Even low-level exposure is linked to developmental harm in children and cardiovascular issues in adults.
Untreated sewage is discharged into rivers and water sources during heavy rainfall. These overflow events introduce bacteria, viruses, and chemical pollutants upstream of treatment intake points.
Fertilisers, pesticides, and animal waste wash into water sources from farmland. Nitrate contamination is a persistent problem in agricultural regions.
Decades-old pipe networks corrode and degrade, introducing trace metals, sediment, and bacteria into the water supply between treatment and your tap.
Noticeable chlorine taste indicates higher-than-average treatment levels. While safe at regulated doses, it affects the flavour of drinking water, cooking, and hot drinks.
Natural and synthetic organic compounds from peat, agriculture, and industry can react with chlorine to form harmful disinfection by-products including trihalomethanes.
When chlorine reacts with natural organic matter in water, it creates by-products including trihalomethanes. Long-term exposure is associated with increased health risks.
Tiny plastic particles found in treated water supplies pass through standard filtration. Research into long-term health effects is ongoing, but early findings raise concern.
Per- and polyfluoroalkyl substances — "forever chemicals" — persist in water indefinitely. Linked to thyroid disease, immune suppression, and increased cancer risk. Standard treatment does not remove them.
Trace amounts of medicines — from painkillers to hormones — have been detected in treated water supplies. Conventional treatment does not fully remove them.
Former heavy industry left contamination in soil and infrastructure. Ageing pipes in industrial areas can introduce trace metals and chemical residues into tap water.
Overview
Wales has some of the softest water in the UK — naturally low in minerals, drawn from upland reservoirs. But soft doesn't mean pure. Chlorine, lead from old mining communities, and organic compounds still reach your glass.
Water Hardness
Welsh water runs soft — often under 80 ppm. No limescale. But soft water is naturally more acidic, which means it's more aggressive on old pipes. It dissolves what hard water leaves alone.
Common Contaminants
Over 400 abandoned mines release 500+ tonnes of metals into Welsh rivers annually. Lead pipes remain widespread in older properties. Sewage pollution incidents hit a decade high in 2024. Chlorine reacts with peat-rich organic matter to form disinfection by-products. Agricultural runoff, PFAS, microplastics, and pharmaceutical traces add to the load.
What Pluvia Removes
The lead dissolved from mining heritage and old pipes, the chlorine and its disinfection by-products, the organic compounds from peat sources, the PFAS and microplastics — Pluvia's RO + UV-C removes what 400 abandoned mines and ageing infrastructure put into your soft Welsh water.
Regional Notes
Many Welsh communities still have lead service pipes from the early 1900s. Welsh Water has a replacement programme — but with 27,000 km of pipe, your street may be waiting years.
Check Your Extended Report
Want the full picture? Welsh Water publishes detailed water quality data for your exact postcode. Check their official report to see what's in your supply right now.
The information on this page is sourced from publicly available water quality reports published by Welsh Water and independent testing data. We do not guarantee its accuracy or that it reflects current conditions. Your actual water quality may be better or worse than described here. For the most up-to-date results, check your supplier's official report above.
Your area has Lead from mining heritage & Lead pipes concerns — Pluvia removes them.
Every day without Pluvia is another day drinking unfiltered tap water. Switch once — save £4,500+ over 5 years.
or £100/mo for 12 months
Try it 30 days. Full refund if you're not convinced.