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tapwater
England and Wales average 9.0

Tap water in DY6, DudleySafe to drink.

Supplied by Severn Trent. 286 samples, 20 substances, latest on 12 December 2025. Everything is inside the legal limit. One result, fluoride, sits close to the line.

See the filter we recommendSee everything that was tested

8.7 / 10

The tank is as full as the score.

What to do about it

Waterdrop G3P600 Reverse Osmosis

Waterdrop G3P600 Reverse Osmosis

£550typical price

Removes fluoride, the result that stood out in DY6.

Check price at Waterdrop (opens in new tab)
ZeroWater 12-Cup Ready-Pour

ZeroWater 12-Cup Ready-Pour

£40typical price

Removes fluoride, the result that stood out in DY6.

Check price at Amazon (opens in new tab)
Waterdrop WD-FC-06 Tap Filter

Waterdrop WD-FC-06 Tap Filter

£30typical price

Removes fluoride, the result that stood out in DY6.

Check price at Amazon (opens in new tab)

We earn a commission if you buy through these links, at no extra cost to you. It never changes which product we put first. How we make money

What's in a glass of DY6 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.

Fluoride came closest to a limit, at 77% of it. 15 of 17 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitCadmium: 0.00001 mg/L, <1% of the 0.005 mg/L limitCadmium<1%Copper: 0.0054 mg/L, <1% of the 2 mg/L limitCopper<1%Nitrite: 0.003 mg/L, <1% of the 0.5 mg/L limitNitrite<1%Chromium: 0.00042 mg/L, <1% of the 0.05 mg/L limitChromium<1%Antimony: 0.000059 mg/L, 1% of the 0.005 mg/L limitAntimony1%Selenium: 0.00053 mg/L, 1% of the 0.04 mg/L limitSelenium1%Lead: 0.00014 mg/L, 1% of the 0.01 mg/L limitLead1%Manganese: 0.00073 mg/L, 1% of the 0.05 mg/L limitManganese1%Turbidity: 0.12 NTU, 3% of the 4 NTU limitTurbidity3%Colour: 0.8 mg/L Pt/Co, 4% of the 20 mg/L Pt/Co limitColour4%Iron: 0.0107 mg/L, 5% of the 0.2 mg/L limitIron5%Nickel: 0.0013 mg/L, 7% of the 0.02 mg/L limitNickel7%Aluminium: 0.021 mg/L, 11% of the 0.2 mg/L limitAluminium11%Arsenic: 0.00148 mg/L, 15% of the 0.01 mg/L limitArsenic15%Trihalomethanes: 0.0208 mg/L, 21% of the 0.1 mg/L limitTrihalomethanes21%Nitrate: 25.9 mg/L, 52% of the 50 mg/L limitNitrate52%Fluoride: 1.15 mg/L, 77% of the 1.5 mg/L limitFluoride77%
  1. Fluoride77%
  2. Nitrate52%
  3. Trihalomethanes21%
  4. Arsenic15%
  5. Aluminium11%
  6. Nickel7%
  7. Iron5%
  8. Colour4%
  9. Turbidity3%
  10. Manganese1%
  11. Lead1%
  12. Selenium1%
  13. Antimony1%
  14. Chromium<1%
  15. Nitrite<1%
  16. Copper<1%
  17. Cadmium<1%
  • pH 7.97 pH
  • Conductivity 402 µS/cm
  • Phosphate 0.322 mg/L
All 20 results as a table
SubstanceResultLegal limitShare of limit
Fluoride1.15 mg/L1.5 mg/L
77%
Colour0.8 mg/L Pt/Co20 mg/L Pt/Co
4%
pH7.97 pHNo legal limit–
Turbidity0.12 NTU4 NTU
3%
Nitrate25.9 mg/L50 mg/L
52%
Nitrite0.003 mg/L0.5 mg/L
<1%
Manganese0.00073 mg/L0.05 mg/L
1%
Copper0.0054 mg/L2 mg/L
<1%
Arsenic0.00148 mg/L0.01 mg/L
15%
Cadmium0.00001 mg/L0.005 mg/L
<1%
Chromium0.00042 mg/L0.05 mg/L
<1%
Nickel0.0013 mg/L0.02 mg/L
7%
Lead0.00014 mg/L0.01 mg/L
1%
Antimony0.000059 mg/L0.005 mg/L
1%
Selenium0.00053 mg/L0.04 mg/L
1%
Conductivity402 µS/cmNo legal limit–
Aluminium0.021 mg/L0.2 mg/L
11%
Iron0.0107 mg/L0.2 mg/L
5%
Trihalomethanes0.0208 mg/L0.1 mg/L
21%
Phosphate0.322 mg/LNo legal limit–
Outside your tap

Your river is the Smestow Bk - Wom-Penn Bk to conf R Stour, rated moderate

The Environment Agency rated the Smestow Bk - Wom-Penn Bk to conf R Stour as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by insects and other small river life. 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

Within 10 km

24

forever-chemical detections in nearby rivers and groundwater

At 5 sites. The highest was PFBS at 0.0077 µg/L, at Smestow Brook at Presswood, 3.8 km away, in March 2026. These are river and borehole samples, not tests of your tap water.

Every PFAS sample around Wolverhampton · Which filters remove PFAS · PFAS explained

DY6 in short

Tap water in DY6 (Dudley) is supplied by Severn Trent in the Dudley Central zone and scores 8.7 out of 10, against an England and Wales average of 9.0. 1 of 20 tested substances was close to or over a limit. The latest sample is from 12 December 2025.

  • Fluoride is within its legal limit but flagged, at 77% of the 1.5 mg/L maximumAnything over three quarters of a limit is flagged here as worth watching. It has not gone over. See every reading
  • 7th cleanest of 9 areas tested in Dudley2 areas in Dudley scored lower. The best is DY8 on 9.2.
  • PFAS found at 5 monitoring sites within 10 kmThose are river and groundwater samples, not tap water. The highest was PFBS about 3.8 km away. What was measured

Next door

B638.7 out of 10B628.6 out of 10DY89.2 out of 10DY38.6 out of 10DY98.8 out of 10DY58.9 out of 10DY28.8 out of 10DY18.9 out of 10

Questions about DY6 water

Is DY6 tap water safe to drink?

Based on the latest tests, DY6 (Dudley) water scores 8.7/10, which is safe. 1 of 20 tested contaminants exceeded recommended levels. Water is supplied by Severn Trent.

What contaminants are in DY6 water?

We tested 20 contaminants in DY6 water. 1 were flagged, including Fluoride. 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 DY6?

DY6 (Dudley) is supplied by Severn Trent. You can view their full profile and compliance data on our supplier page.

Should I use a water filter in DY6?

With 1 contaminant above recommended levels in DY6, a water filter could help. A reverse osmosis or activated carbon filter is recommended for PFAS removal. See our filter recommendations for your area.

Are there PFAS forever chemicals in DY6 water?

The tap-water tests we hold for DY6 do not include a PFAS result. Environment Agency monitoring found PFAS in 24 river and groundwater samples from 5 sites within 10 km of DY6, the highest being PFBS at 0.0077 µg/L about 3.8 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 DY6?

The Environment Agency rated the Smestow Bk - Wom-Penn Bk to conf R Stour as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by insects and other small river life. 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 DY6, which is treated before it reaches homes.

Keep reading

PFAS explainedHow to test your waterBest water filtersFilter shower headsWater testing kitsUK water rankingsWater hardness checkerWater hardness map

River and groundwater readings near DY6

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.

SubstanceReadingDrinking water limit
pH7.69 pHNone
Temperature17.1 °CNone
Conductivity455 µS/cmNone
Ammonia0.058 mg/L0.5 mg/L
Nitrate1.4 mg/L50 mg/L
Nitrite0.026 mg/L0.5 mg/L
Phosphate0.063 mg/LNone
Dissolved Oxygen8.59 mg/LNone
Zinc0.02 mg/LNone
Hardness (as CaCO3)409 mg/LNone
Chromium0.024 mg/L0.05 mg/L
Copper0.00226 mg/L2 mg/L

Get alerts for your area

We'll email you when water quality data changes for DY6.

Source: Severn Trent test results, published through the Stream Water Data Portal; rivers and PFAS from the Environment Agency. Page updated . How we score · Where the data comes from