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tapwater
England and Wales average 9.0

Tap water in CV2, CoventrySafe to drink.

Supplied by Severn Trent. 1,844 samples, 20 substances, latest on 21 December 2025. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

8.5 / 10

The tank is as full as the score.

What to do about it

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Basic chlorine and taste improvement on a budget

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What's in a glass of CV2 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 56% of it. 12 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%Selenium: 0.00009 mg/L, <1% of the 0.04 mg/L limitSelenium<1%Copper: 0.0084 mg/L, <1% of the 2 mg/L limitCopper<1%Chromium: 0.00042 mg/L, <1% of the 0.05 mg/L limitChromium<1%Manganese: 0.00073 mg/L, 1% of the 0.05 mg/L limitManganese1%Arsenic: 0.00017 mg/L, 2% of the 0.01 mg/L limitArsenic2%Antimony: 0.000109 mg/L, 2% of the 0.005 mg/L limitAntimony2%Nitrite: 0.013 mg/L, 3% of the 0.5 mg/L limitNitrite3%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: 0.0159 mg/L, 8% of the 0.2 mg/L limitIron8%Aluminium: 0.021 mg/L, 11% of the 0.2 mg/L limitAluminium11%Nitrate: 12.8 mg/L, 26% of the 50 mg/L limitNitrate26%Nickel: 0.0057 mg/L, 29% of the 0.02 mg/L limitNickel29%Trihalomethanes: 0.0299 mg/L, 30% of the 0.1 mg/L limitTrihalomethanes30%Lead: 0.00488 mg/L, 49% of the 0.01 mg/L limitLead49%Fluoride: 0.84 mg/L, 56% of the 1.5 mg/L limitFluoride56%
  1. Fluoride56%
  2. Lead49%
  3. Trihalomethanes30%
  4. Nickel29%
  5. Nitrate26%
  6. Aluminium11%
  7. Iron8%
  8. Colour4%
  9. Turbidity3%
  10. Nitrite3%
  11. Antimony2%
  12. Arsenic2%
  13. Manganese1%
  14. Chromium<1%
  15. Copper<1%
  16. Selenium<1%
  17. Cadmium<1%
  • pH 7.18 pH
  • Conductivity 223 µS/cm
  • Phosphate 1.45 mg/L
All 20 results as a table
SubstanceResultLegal limitShare of limit
Iron0.0159 mg/L0.2 mg/L
8%
Manganese0.00073 mg/L0.05 mg/L
1%
Colour0.8 mg/L Pt/Co20 mg/L Pt/Co
4%
Aluminium0.021 mg/L0.2 mg/L
11%
Turbidity0.12 NTU4 NTU
3%
pH7.18 pHNo legal limit–
Conductivity223 µS/cmNo legal limit–
Nitrate12.8 mg/L50 mg/L
26%
Nitrite0.013 mg/L0.5 mg/L
3%
Copper0.0084 mg/L2 mg/L
<1%
Fluoride0.84 mg/L1.5 mg/L
56%
Arsenic0.00017 mg/L0.01 mg/L
2%
Cadmium0.00001 mg/L0.005 mg/L
<1%
Chromium0.00042 mg/L0.05 mg/L
<1%
Nickel0.0057 mg/L0.02 mg/L
29%
Lead0.00488 mg/L0.01 mg/L
49%
Antimony0.000109 mg/L0.005 mg/L
2%
Selenium0.00009 mg/L0.04 mg/L
<1%
Trihalomethanes0.0299 mg/L0.1 mg/L
30%
Phosphate1.45 mg/LNo legal limit–
Outside your tap

Your river is the Sowe - conf Breach Bk to conf Withy Bk, rated poor

The Environment Agency rated the Sowe - conf Breach Bk to conf Withy Bk as poor for ecological health in its 2025 assessment, meaning the river is badly affected, with much of the expected wildlife missing. It is held back by water plants and algae, fish and 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

14

forever-chemical detections in nearby rivers and groundwater

At 2 sites. The highest was PFHxA at 0.0038 µg/L, at Coombe Pool Coventry Lake Sample Point, 2.5 km away, in April 2025. These are river and borehole samples, not tests of your tap water.

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

CV2 in short

Tap water in CV2 (Coventry) is supplied by Severn Trent in the Coventry Central zone and scores 8.5 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 21 December 2025.

  • Fluoride is the reading closest to its limit, at 56% of the 1.5 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
  • 4th cleanest of 7 areas tested in CoventrySquarely mid-table for Coventry, between CV7 on 9.3 and CV3 on 8.4. Every area in Coventry
  • 0.5 points below the national average of 9Below the typical tested district in the UK, which is worth knowing before you choose a filter. Compare every area

Next door

CV38.4 out of 10CV48.7 out of 10CV18.5 out of 10CV58.5 out of 10CV79.3 out of 10CV68.5 out of 10

Questions about CV2 water

Is CV2 tap water safe to drink?

Based on the latest tests, CV2 (Coventry) water scores 8.5/10, which is safe. 0 of 20 tested contaminants exceeded recommended levels. Water is supplied by Severn Trent.

What contaminants are in CV2 water?

We tested 20 contaminants in CV2 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 CV2?

CV2 (Coventry) 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 CV2?

CV2 water scored 8.5/10 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 CV2 water?

The tap-water tests we hold for CV2 do not include a PFAS result. Environment Agency monitoring found PFAS in 14 river and groundwater samples from 2 sites within 10 km of CV2, the highest being PFHxA at 0.0038 µg/L about 2.5 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 CV2?

The Environment Agency rated the Sowe - conf Breach Bk to conf Withy Bk as poor for ecological health in its 2025 assessment, meaning the river is badly affected, with much of the expected wildlife missing. It is held back by water plants and algae, fish and 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 CV2, which is treated before it reaches homes.

Keep reading

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

River and groundwater readings near CV2

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
pH7.79 pHNone
Temperature15.3 °CNone
Conductivity726 µS/cmNone
Nitrate2.1 mg/L50 mg/L
Nitrite0.013 mg/L0.5 mg/L
Phosphate0.29 mg/LNone
Dissolved Oxygen6.76 mg/LNone
Ammonia0.03 mg/L0.5 mg/L
Copper0.00293 mg/L2 mg/L
Zinc0.021 mg/LNone

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We'll email you when water quality data changes for CV2.

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