Tap water quality in Leeds

Leeds is estimated to have moderately hard water (~150 mg/L CaCO₃), and all tested parameters are within UK drinking water limits.

Supplied by Yorkshire Water · Yorkshire Water E01033016 · Based on DWI laboratory analysis

Chlorine

0.85mg/L

Water hardness

Estimated

Estimated: Moderate (~150 mg/L CaCO₃)

Based on typical regional geology in West Yorkshire. Lab-tested data for this specific supply zone is not yet available.

All tested parameters are within safe drinking water limits

For the analytes shown, reported values are within UK drinking water standards. This does not replace your supplier's formal water quality report.

How readings compare to limits

Chlorine

0.85 mg/L

No UK limit · WHO guideline 5 mg/L

What these readings mean

UK drinking water is regulated under the Water Supply (Water Quality) Regulations 2016, which set a prescribed concentration value (PCV) for each substance. Yorkshire Water must sample against these and report the results to the Drinking Water Inspectorate.

Chlorine in Leeds

0.85 mg/L·UK limit no statutory limit

Added as a disinfectant and required to remain present through the network to keep water safe in transit. Typically 0.2–0.5 mg/L at the tap. A noticeable taste is usually harmless and fades if water stands in a covered jug.

Common questions about Leeds tap water

Is Leeds tap water safe to drink?

Yes. Leeds tap water is supplied by Yorkshire Water and every parameter we hold (chlorine 0.85 mg/L) falls within UK drinking water standards set by the Drinking Water Inspectorate. Readings vary by supply zone, so check your exact postcode for local results.

Is Leeds hard or soft water?

Leeds is estimated to have soft water. Based on local geology, hardness is estimated at around 150 mg/L CaCO₃, which would be classed as moderately hard on the UK scale. Lab CaCO₃ data for the supply zone is not yet published.

What is the water hardness in Leeds?

Water hardness in Leeds is estimated at around 150 mg/L CaCO₃ (moderately hard), based on local geology. At this level limescale is not usually a problem.

Who supplies the tap water in Leeds?

Tap water in Leeds is supplied by Yorkshire Water. They are responsible for treatment, distribution and the laboratory testing reported to the Drinking Water Inspectorate.

Sewage spills in Leeds

Official Environment Agency storm overflow data near the town centre.

Check your postcode

Look up any UK address for lab results and nearby overflows.