Tap water in M11, ManchesterSafe to drink.Soft.
Supplied by United Utilities. 1,326 samples, 16 substances, latest on 16 December 2024. Everything is inside the legal limit, and nothing comes close to it.
9.3 / 10
The tank is as full as the score. The specks are the minerals that make water hard.
What to do about it
ZeroWater 12-Cup Ready-Pour
£40typical price
Households concerned about PFAS and heavy metals
Waterdrop 10UA Under Sink
£70typical price
High-volume under-sink filtration without RO complexity
BRITA Marella XL + MAXTRA PRO
£25typical price
Basic chlorine and taste improvement on a budget
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What's in a glass of M11 water
Every bubble is a substance the lab measured. The higher it floats, the closer it came to its legal limit, the dashed line at the top.
Trihalomethanes came closest to a limit, at 35% of it. 15 of 16 substances used under a quarter of theirs.
- Trihalomethanes35%
- Ammonia11%
- Nitrate9%
- Nickel7%
- Bromate7%
- Aluminium7%
- Lead6%
- Antimony6%
- Turbidity6%
- Iron4%
- Selenium2%
- Nitrite2%
- Cadmium2%
- Chromium2%
- Manganese1%
- Copper<1%
All 16 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| Ammonia | 0.054 mg/L | 0.5 mg/L | 11% |
| Aluminium | 0.0131 mg/L | 0.2 mg/L | 7% |
| Iron | 0.008 mg/L | 0.2 mg/L | 4% |
| Manganese | 0.00063 mg/L | 0.05 mg/L | 1% |
| Bromate | 0.00068 mg/L | 0.01 mg/L | 7% |
| Turbidity | 0.24 NTU | 4 NTU | 6% |
| Copper | 0.0000104 mg/L | 2 mg/L | <1% |
| Nickel | 0.00142 mg/L | 0.02 mg/L | 7% |
| Lead | 0.00062 mg/L | 0.01 mg/L | 6% |
| Nitrate | 4.38 mg/L | 50 mg/L | 9% |
| Nitrite | 0.0098 mg/L | 0.5 mg/L | 2% |
| Trihalomethanes | 0.0345 mg/L | 0.1 mg/L | 35% |
| Cadmium | 0.00009 mg/L | 0.005 mg/L | 2% |
| Chromium | 0.00083 mg/L | 0.05 mg/L | 2% |
| Antimony | 0.00031 mg/L | 0.005 mg/L | 6% |
| Selenium | 0.00085 mg/L | 0.04 mg/L | 2% |
32mg of limescale minerals in every litre
Soft water. Kind to kettles, boilers and skin
You will not need a softener here, and you will use less soap and detergent than most of England.
Your river is the Irwell / Manchester Ship Canal (Irk to confluence with Upper Mersey), rated moderate
The Environment Agency rated the Irwell / Manchester Ship Canal (Irk to confluence with Upper Mersey) as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by ammonia and phosphate. It fails the chemical test, as every river, estuary and stretch of coast in England does, because of long-lasting pollutants such as mercury, PFOS (a forever chemical) and old flame retardants.
None of this is a test of your tap water. Environment Agency record · River health across England
193
forever-chemical detections in nearby rivers and groundwater
At 11 sites. The highest was PFOA at 0.059 µg/L, at Ashton-U-Lyne Golf Club BH SD90/308, 8.8 km away, in September 2024. These are river and borehole samples, not tests of your tap water.
Every PFAS sample around Manchester · Which filters remove PFAS · PFAS explained
M11 in short
Tap water in M11 (Manchester) is supplied by United Utilities in the Manchester Central zone and scores 9.3 out of 10, against an England and Wales average of 9.0. None of the 16 tested substances came close to a limit. The latest sample is from 16 December 2024.
- 15th cleanest of 17 areas tested in Manchester2 areas in Manchester scored lower. The best is M22 on 9.5. Every area in Manchester
- Soft water at 32 mg/LLimescale is not a problem in M11, so skip softeners and scale filters entirely. How hardness is measured
- PFAS found at 11 monitoring sites within 10 kmThose are river and groundwater samples, not tap water. The highest was PFOA about 8.8 km away. What was measured
Questions about M11 water
Is M11 tap water safe to drink?
Based on the latest tests, M11 (Manchester) water scores 9.3/10, which is safe. 0 of 16 tested contaminants exceeded recommended levels. Water is supplied by United Utilities.
What contaminants are in M11 water?
We tested 16 contaminants in M11 water. None exceeded recommended safe levels. PFAS (forever chemicals) were also measured in rivers and groundwater within 10 km, though not in the tap-water tests themselves.
Who supplies water in M11?
M11 (Manchester) is supplied by United Utilities. You can view their full profile and compliance data on our supplier page.
Is M11 water hard or soft?
Water in M11 (Manchester) has a hardness of 32 mg/L CaCO3, which is classified as soft. Soft water is gentle on appliances and skin.
Should I use a water filter in M11?
M11 water scored 9.3/10 with no contaminants above recommended levels. A filter is optional but can improve taste, especially if you notice a chlorine flavour. See our filter recommendations for your area.
Are there PFAS forever chemicals in M11 water?
The tap-water tests we hold for M11 do not include a PFAS result. Environment Agency monitoring found PFAS in 193 river and groundwater samples from 11 sites within 10 km of M11, the highest being PFOA at 0.059 µg/L about 8.8 km away. These are environmental samples, not tests of tap water. The UK currently has no legal limit for PFAS in drinking water; the Drinking Water Inspectorate uses a 0.1 µg/L guideline for individual compounds. Reverse osmosis filters can reduce PFAS levels.
How clean is the river near M11?
The Environment Agency rated the Irwell / Manchester Ship Canal (Irk to confluence with Upper Mersey) as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by ammonia and phosphate. It fails the chemical test, as every river, estuary and stretch of coast in England does, because of long-lasting pollutants such as mercury, PFOS (a forever chemical) and old flame retardants. This is a rating of the river, not of tap water in M11, which is treated before it reaches homes.
Keep reading
- Best Filter for PFAS RemovalThe filters with independent certification to remove forever chemicals
- PFAS Forever ChemicalsWhat PFAS are and how to reduce your exposure at home
- Is UK Tap Water Safe?Everything you need to know about tap water safety in the UK
- Best Water Filters UKEvery filter type compared on what it actually removes
PFAS explainedHow to test your waterBest water filtersFilter shower headsWater testing kitsAll of ManchesterUK water rankingsWater hardness checkerWater hardness map
River and groundwater readings near M11
Environment Agency samples from rivers, groundwater and reservoirs nearby. Not your tap water. For scale they are shown against drinking water limits; rivers are judged against much stricter environmental standards, and on those every river in England fails for chemicals.
| Substance | Reading | Drinking water limit |
|---|---|---|
| pH | 7.99 pH | None |
| Temperature | 8.3 °C | None |
| Conductivity | 439 µS/cm | None |
| Ammonia | 0.15 mg/L | 0.5 mg/L |
| Nitrate | 1.2 mg/L | 50 mg/L |
| Nitrite | 0.024 mg/L | 0.5 mg/L |
| Phosphate | 0.082 mg/L | None |
| Dissolved Oxygen | 11.3 mg/L | None |
| Cadmium | 0.000246 mg/L | 0.005 mg/L |
| Hardness (as CaCO3) | 331 mg/L | None |
| Chromium | 0.000924 mg/L | 0.05 mg/L |
| Zinc | 0.0323 mg/L | None |
| Nickel | 0.00771 mg/L | 0.02 mg/L |
| Aluminium | 0.0374 mg/L | 0.2 mg/L |
| Arsenic | 0.0012 mg/L | 0.01 mg/L |
Get alerts for your area
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