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tapwater
England and Wales average 9.0

Tap water in DE55, Amber ValleySafe to drink.

Supplied by Severn Trent. 1,220 samples, 20 substances, latest on 19 December 2025. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

9.1 / 10

The tank is as full as the score.

What to do about it

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What's in a glass of DE55 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. 14 of 17 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitNitrite: 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%Selenium: 0.00037 mg/L, <1% of the 0.04 mg/L limitSelenium<1%Cadmium: 0.00007 mg/L, 1% of the 0.005 mg/L limitCadmium1%Arsenic: 0.0002 mg/L, 2% of the 0.01 mg/L limitArsenic2%Lead: 0.00028 mg/L, 3% of the 0.01 mg/L limitLead3%Manganese: 0.00147 mg/L, 3% of the 0.05 mg/L limitManganese3%Turbidity: 0.12 NTU, 3% of the 4 NTU limitTurbidity3%Iron: 0.007 mg/L, 3% of the 0.2 mg/L limitIron3%Colour: 0.8 mg/L Pt/Co, 4% of the 20 mg/L Pt/Co limitColour4%Antimony: 0.000219 mg/L, 4% of the 0.005 mg/L limitAntimony4%Copper: 0.163 mg/L, 8% of the 2 mg/L limitCopper8%Aluminium: 0.021 mg/L, 11% of the 0.2 mg/L limitAluminium11%Nitrate: 5.8 mg/L, 12% of the 50 mg/L limitNitrate12%Fluoride: 0.41 mg/L, 27% of the 1.5 mg/L limitFluoride27%Nickel: 0.0055 mg/L, 27% of the 0.02 mg/L limitNickel27%Trihalomethanes: 0.0353 mg/L, 35% of the 0.1 mg/L limitTrihalomethanes35%
  1. Trihalomethanes35%
  2. Nickel27%
  3. Fluoride27%
  4. Nitrate12%
  5. Aluminium11%
  6. Copper8%
  7. Antimony4%
  8. Colour4%
  9. Iron3%
  10. Turbidity3%
  11. Manganese3%
  12. Lead3%
  13. Arsenic2%
  14. Cadmium1%
  15. Selenium<1%
  16. Chromium<1%
  17. Nitrite<1%
  • pH 7.47 pH
  • Conductivity 282 µS/cm
  • Phosphate 1.01 mg/L
All 20 results as a table
SubstanceResultLegal limitShare of limit
Turbidity0.12 NTU4 NTU
3%
Colour0.8 mg/L Pt/Co20 mg/L Pt/Co
4%
Manganese0.00147 mg/L0.05 mg/L
3%
Copper0.163 mg/L2 mg/L
8%
Fluoride0.41 mg/L1.5 mg/L
27%
Arsenic0.0002 mg/L0.01 mg/L
2%
Cadmium0.00007 mg/L0.005 mg/L
1%
Chromium0.00042 mg/L0.05 mg/L
<1%
Nickel0.0055 mg/L0.02 mg/L
27%
Lead0.00028 mg/L0.01 mg/L
3%
Antimony0.000219 mg/L0.005 mg/L
4%
Selenium0.00037 mg/L0.04 mg/L
<1%
Aluminium0.021 mg/L0.2 mg/L
11%
Iron0.007 mg/L0.2 mg/L
3%
Nitrate5.8 mg/L50 mg/L
12%
Nitrite0.003 mg/L0.5 mg/L
<1%
pH7.47 pHNo legal limit–
Conductivity282 µS/cmNo legal limit–
Trihalomethanes0.0353 mg/L0.1 mg/L
35%
Phosphate1.01 mg/LNo legal limit–
Outside your tap

Your river is the Alfreton Brook from Westwood Brook to Amber, rated moderate

The Environment Agency rated the Alfreton Brook from Westwood Brook to Amber as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by dissolved oxygen, phosphate and fish. 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

27

forever-chemical detections in nearby rivers and groundwater

At 2 sites. The highest was PFOA at 0.013 µg/L, at RSN0116 Pamelas Larches, 9.5 km away, in September 2023. These are river and borehole samples, not tests of your tap water.

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

DE55 in short

Tap water in DE55 (Amber Valley) is supplied by Severn Trent in the Amber Valley Central zone and scores 9.1 out of 10, against an England and Wales average of 9.0. None of the 20 tested substances came close to a limit. The latest sample is from 19 December 2025.

  • 2nd cleanest of 4 areas tested in DerbyOnly 1 area in Derby scored higher. The best is DE75 on 9.2. Every area in Derby
  • PFAS found at 2 monitoring sites within 10 kmThose are river and groundwater samples, not tap water. The highest was PFOA about 9.5 km away. What was measured
  • Nothing tested came within 40% of its legal limitThe highest was Trihalomethanes at 35% of the 0.1 mg/L maximum. See every reading

Next door

DE759.2 out of 10DE59.0 out of 10DE569.0 out of 10

Questions about DE55 water

Is DE55 tap water safe to drink?

Based on the latest tests, DE55 (Amber Valley) water scores 9.1/10, which is safe. 0 of 20 tested contaminants exceeded recommended levels. Water is supplied by Severn Trent.

What contaminants are in DE55 water?

We tested 20 contaminants in DE55 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 DE55?

DE55 (Amber Valley) 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 DE55?

DE55 water scored 9.1/10 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 DE55 water?

The tap-water tests we hold for DE55 do not include a PFAS result. Environment Agency monitoring found PFAS in 27 river and groundwater samples from 2 sites within 10 km of DE55, the highest being PFOA at 0.013 µg/L about 9.5 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 DE55?

The Environment Agency rated the Alfreton Brook from Westwood Brook to Amber as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by dissolved oxygen, phosphate and fish. 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 DE55, which is treated before it reaches homes.

Keep reading

PFAS explainedHow to test your waterBest water filtersFilter shower headsWater testing kitsAll of DerbyUK water rankingsWater hardness checkerWater hardness map

River and groundwater readings near DE55

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
pH7.58 pHNone
Iron0.08 mg/L0.2 mg/L
Temperature8.6 °CNone
Ammonia0.06 mg/L0.5 mg/L
Nitrate7.6 mg/L50 mg/L
Nitrite0.019 mg/L0.5 mg/L
Phosphate0.029 mg/LNone
Dissolved Oxygen10.7 mg/LNone
Aluminium0.056 mg/L0.2 mg/L
Copper0.0015 mg/L2 mg/L
Zinc0.021 mg/LNone

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We'll email you when water quality data changes for DE55.

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