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tapwater
England and Wales average 9.0

Tap water in DE65, South DerbyshireSafe to drink.

Supplied by Severn Trent. 174 samples, 8 substances, latest on 11 December 2025. Everything is inside the legal limit, and nothing comes close to it.

9.5 / 10

The tank is as full as the score.

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What's in a glass of DE65 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.

Aluminium came closest to a limit, at 11% of it. 5 of 5 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitManganese: 0.00073 mg/L, 1% of the 0.05 mg/L limitManganese1%Turbidity: 0.12 NTU, 3% of the 4 NTU limitTurbidity3%Iron: 0.0079 mg/L, 4% of the 0.2 mg/L limitIron4%Colour: 0.8 mg/L Pt/Co, 4% of the 20 mg/L Pt/Co limitColour4%Aluminium: 0.021 mg/L, 11% of the 0.2 mg/L limitAluminium11%
  1. Aluminium11%
  2. Colour4%
  3. Iron4%
  4. Turbidity3%
  5. Manganese1%
  • Conductivity 257 µS/cm
  • pH 7.59 pH
  • Phosphate 1.02 mg/L
All 8 results as a table
SubstanceResultLegal limitShare of limit
Colour0.8 mg/L Pt/Co20 mg/L Pt/Co
4%
Conductivity257 µS/cmNo legal limit–
pH7.59 pHNo legal limit–
Aluminium0.021 mg/L0.2 mg/L
11%
Iron0.0079 mg/L0.2 mg/L
4%
Manganese0.00073 mg/L0.05 mg/L
1%
Turbidity0.12 NTU4 NTU
3%
Phosphate1.02 mg/LNo legal limit–
Outside your tap

Your river is the Eggington Brook Catchment (trib of Trent), rated moderate

The Environment Agency rated the Eggington Brook Catchment (trib of Trent) as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by phosphate and water plants and algae. 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

142

forever-chemical detections in nearby rivers and groundwater

At 11 sites. The highest was 6:2 FTSA at 0.35 µg/L, at Non-Tidal River Trent at Willington, 4.1 km away, in July 2025. These are river and borehole samples, not tests of your tap water.

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

DE65 in short

Tap water in DE65 (South Derbyshire) is supplied by Severn Trent in the South Derbyshire Central zone and scores 9.5 out of 10, against an England and Wales average of 9.0. None of the 8 tested substances came close to a limit. The latest sample is from 11 December 2025.

  • The cleanest tap water of the 4 areas tested in South DerbyshireDE65 scores 9.5 out of 10, ahead of DE11 in second place on 9.3.
  • Scores higher than all 3 neighbouring districtsThe nearest rival is DE11 on 9.3, against 9.5 here. Compare with DE11
  • PFAS found at 11 monitoring sites within 10 kmThose are river and groundwater samples, not tap water. The highest was 6:2 FTSA about 4.1 km away. What was measured

Questions about DE65 water

Is DE65 tap water safe to drink?

Based on the latest tests, DE65 (South Derbyshire) water scores 9.5/10, which is safe. 0 of 8 tested contaminants exceeded recommended levels. Water is supplied by Severn Trent.

What contaminants are in DE65 water?

We tested 8 contaminants in DE65 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 DE65?

DE65 (South Derbyshire) 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 DE65?

DE65 water scored 9.5/10 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 DE65 water?

The tap-water tests we hold for DE65 do not include a PFAS result. Environment Agency monitoring found PFAS in 142 river and groundwater samples from 11 sites within 10 km of DE65, the highest being 6:2 FTSA at 0.35 µg/L about 4.1 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 DE65?

The Environment Agency rated the Eggington Brook Catchment (trib of Trent) as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by phosphate and water plants and algae. 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 DE65, 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 DE65

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
pH7.53 pHNone
Temperature18.6 °CNone
Conductivity842 µS/cmNone
Ammonia0.045 mg/L0.5 mg/L
Nitrate9.8 mg/L50 mg/L
Nitrite0.036 mg/L0.5 mg/L
Phosphate0.22 mg/LNone
Dissolved Oxygen7.69 mg/LNone
Hardness (as CaCO3)442 mg/LNone
Copper0.00337 mg/L2 mg/L
Zinc0.00522 mg/LNone

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We'll email you when water quality data changes for DE65.

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