Skip to main content
tapwater
England and Wales average 9.0

Tap water in HR4, Herefordshire, County ofSafe to drink.

Supplied by Severn Trent. 912 samples, 20 substances, latest on 27 December 2024. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

9.6 / 10

The tank is as full as the score.

What to do about it

ZeroWater 12-Cup Ready-Pour

ZeroWater 12-Cup Ready-Pour

£40typical price

Households concerned about PFAS and heavy metals

Check price at Amazon (opens in new tab)
Waterdrop 10UA Under Sink

Waterdrop 10UA Under Sink

£70typical price

High-volume under-sink filtration without RO complexity

Check price at Waterdrop (opens in new tab)
BRITA Marella XL + MAXTRA PRO

BRITA Marella XL + MAXTRA PRO

£25typical price

Basic chlorine and taste improvement on a budget

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 HR4 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 31% of it. 16 of 17 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitCadmium: 0.000025 mg/L, <1% of the 0.005 mg/L limitCadmium<1%Selenium: 0.00023 mg/L, <1% of the 0.04 mg/L limitSelenium<1%Antimony: 0.000052 mg/L, 1% of the 0.005 mg/L limitAntimony1%Manganese: 0.00068 mg/L, 1% of the 0.05 mg/L limitManganese1%Lead: 0.00016 mg/L, 2% of the 0.01 mg/L limitLead2%Arsenic: 0.00016 mg/L, 2% of the 0.01 mg/L limitArsenic2%Iron: 0.004 mg/L, 2% of the 0.2 mg/L limitIron2%Aluminium: 0.005 mg/L, 3% of the 0.2 mg/L limitAluminium3%Nitrite: 0.013 mg/L, 3% of the 0.5 mg/L limitNitrite3%Copper: 0.058 mg/L, 3% of the 2 mg/L limitCopper3%Nickel: 0.00059 mg/L, 3% of the 0.02 mg/L limitNickel3%Chromium: 0.0015 mg/L, 3% of the 0.05 mg/L limitChromium3%Bromate: 0.00039 mg/L, 4% of the 0.01 mg/L limitBromate4%Turbidity: 0.27 NTU, 7% of the 4 NTU limitTurbidity7%Nitrate: 6.06 mg/L, 12% of the 50 mg/L limitNitrate12%Colour: 4.6 mg/L Pt/Co, 23% of the 20 mg/L Pt/Co limitColour23%Trihalomethanes: 0.031 mg/L, 31% of the 0.1 mg/L limitTrihalomethanes31%
  1. Trihalomethanes31%
  2. Colour23%
  3. Nitrate12%
  4. Turbidity7%
  5. Bromate4%
  6. Chromium3%
  7. Nickel3%
  8. Copper3%
  9. Nitrite3%
  10. Aluminium3%
  11. Iron2%
  12. Lead2%
  13. Arsenic2%
  14. Manganese1%
  15. Antimony1%
  16. Selenium<1%
  17. Cadmium<1%
  • Coliform Bacteria none found
  • E. coli none found
  • Conductivity 230 µS/cm
All 20 results as a table
SubstanceResultLegal limitShare of limit
Coliform Bacteria0 count/100mlMust be zeroNone found
E. coli0 count/100mlMust be zeroNone found
Conductivity230 µS/cmNo legal limit–
Iron0.004 mg/L0.2 mg/L
2%
Aluminium0.005 mg/L0.2 mg/L
3%
Manganese0.00068 mg/L0.05 mg/L
1%
Turbidity0.27 NTU4 NTU
7%
Colour4.6 mg/L Pt/Co20 mg/L Pt/Co
23%
Bromate0.00039 mg/L0.01 mg/L
4%
Trihalomethanes0.031 mg/L0.1 mg/L
31%
Chromium0.0015 mg/L0.05 mg/L
3%
Lead0.00016 mg/L0.01 mg/L
2%
Antimony0.000052 mg/L0.005 mg/L
1%
Selenium0.00023 mg/L0.04 mg/L
<1%
Arsenic0.00016 mg/L0.01 mg/L
2%
Cadmium0.000025 mg/L0.005 mg/L
<1%
Nickel0.00059 mg/L0.02 mg/L
3%
Copper0.058 mg/L2 mg/L
3%
Nitrite0.013 mg/L0.5 mg/L
3%
Nitrate6.06 mg/L50 mg/L
12%
Outside your tap

Your river is the Yazor Bk - source to conf R Wye, rated poor

The Environment Agency rated the Yazor Bk - source to conf R Wye 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 insects and other small river life, water plants and algae 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. Its ecological rating has dropped since the previous assessment.

None of this is a test of your tap water. Environment Agency record · River health across England

HR4 in short

Tap water in HR4 (Herefordshire, County of) is supplied by Severn Trent in the Herefordshire, County of Central zone and scores 9.6 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 27 December 2024.

  • The cleanest tap water of the 9 areas tested in Herefordshire, County ofHR4 scores 9.6 out of 10, ahead of HR5 in second place on 9.6.
  • 0.6 points above the national average of 9Cleaner than the typical tested district in the UK. Compare every area
  • Nothing tested came within 40% of its legal limitThe highest was Trihalomethanes at 31% of the 0.1 mg/L maximum. See every reading

Next door

LD89.6 out of 10HR59.6 out of 10HR19.4 out of 10HR39.5 out of 10HR29.5 out of 10WR139.1 out of 10HR89.2 out of 10HR98.9 out of 10

Also nearby: HR7, HR6

Questions about HR4 water

Is HR4 tap water safe to drink?

Based on the latest tests, HR4 (Herefordshire, County of) water scores 9.6/10, which is safe. 0 of 20 tested contaminants exceeded recommended levels. Water is supplied by Severn Trent.

What contaminants are in HR4 water?

We tested 20 contaminants in HR4 water. None exceeded recommended safe levels.

Who supplies water in HR4?

HR4 (Herefordshire, County of) 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 HR4?

HR4 water scored 9.6/10 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 HR4 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for HR4, and the Environment Agency has no PFAS detections in rivers or groundwater within 10 km of it. That reflects where sampling has happened as much as the water itself.

How clean is the river near HR4?

The Environment Agency rated the Yazor Bk - source to conf R Wye 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 insects and other small river life, water plants and algae 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. Its ecological rating has dropped since the previous assessment. This is a rating of the river, not of tap water in HR4, which is treated before it reaches homes.

Keep reading

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

River and groundwater readings near HR4

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
pH8.02 pHNone
Temperature21.7 °CNone
Conductivity603 µS/cmNone
Ammonia0.031 mg/L0.5 mg/L
Nitrate1.4 mg/L50 mg/L
Nitrite0.013 mg/L0.5 mg/L
Phosphate0.23 mg/LNone
Dissolved Oxygen7.35 mg/LNone

Get alerts for your area

We'll email you when water quality data changes for HR4.

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