Severn Trent Water
Water Quality
Check my water quality

Check your water quality

Your water has won the highest environmental award in the industry - six years in a row. We're the only water company in the country to have achieved that.

Type in your postcode and see exactly what's in yours.

Check my Water Quality

Postcode

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Last 12 months Last Quarter Last Month

Data updated upto Mon Mar 30 23:00:00 UTC 2026

We could not find information about your area, this could be because of one of the following reasons:

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Source of water

Water quality

Depending on its origin, water can contain a variety of natural mineral salts. All water in supply is carefully purified at modern treatment plants to ensure that potential contaminants are removed in order to meet strict UK and European standards

Quality control

Each year we take many thousands of samples direct from the customers' taps to ensure its quality. The table below shows typical values for your area. Individual results may vary slightly due to natural changes in the raw water, and also to changes which occur within the domestic plumbing system

Units and Definitions

PCV

Prescribed Concentration or Value - The UK Limit

mg/l

is equivalent to one part per million

μg/l

is equivalent to one part per billion

NTU

Nephelometric Turbidity Units - the measure of cloudiness in the water

Dilution number

is a standard method for detecting taste and odour

mg/l Pt/Co

is a reference scale for assessing the clarity of the water

μS/cm

measures the natural mineral composition

Hardness Level

the three measures shown are the most common used by washing machine manufactures

Less than (<)

means that this is the lowest value that the high quality equipment can measure

Download a detailed report on the quality of water in your area