Skip to main content
tapwater
England and Wales average 9.0

Tap water in CT14, DoverSafe to drink.

Supplied by Southern Water. 26,793 samples, 25 substances, latest on 30 April 2026. Everything is inside the legal limit, and nothing comes close to it.

See the filter we recommendSee everything that was tested

9.5 / 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 CT14 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.

Nitrate came closest to a limit, at 51% of it. 20 of 21 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitChromium: 0.00023 mg/L, <1% of the 0.05 mg/L limitChromium<1%Cadmium: 0.000031 mg/L, <1% of the 0.005 mg/L limitCadmium<1%Antimony: 0.000036 mg/L, <1% of the 0.005 mg/L limitAntimony<1%Selenium: 0.00043 mg/L, 1% of the 0.04 mg/L limitSelenium1%Lead: 0.00012 mg/L, 1% of the 0.01 mg/L limitLead1%Bromate: 0.00013 mg/L, 1% of the 0.01 mg/L limitBromate1%Nitrite: 0.009 mg/L, 2% of the 0.5 mg/L limitNitrite2%Copper: 0.038 mg/L, 2% of the 2 mg/L limitCopper2%Arsenic: 0.00019 mg/L, 2% of the 0.01 mg/L limitArsenic2%Boron: 0.0255 mg/L, 3% of the 1 mg/L limitBoron3%Nickel: 0.00058 mg/L, 3% of the 0.02 mg/L limitNickel3%Turbidity: 0.13 NTU, 3% of the 4 NTU limitTurbidity3%Manganese: 0.00178 mg/L, 4% of the 0.05 mg/L limitManganese4%Mercury: 0.00004 mg/L, 4% of the 0.001 mg/L limitMercury4%Iron: 0.00928 mg/L, 5% of the 0.2 mg/L limitIron5%Fluoride: 0.08 mg/L, 5% of the 1.5 mg/L limitFluoride5%Aluminium: 0.0113 mg/L, 6% of the 0.2 mg/L limitAluminium6%Ammonia: 0.039 mg/L, 8% of the 0.5 mg/L limitAmmonia8%Trihalomethanes: 0.011 mg/L, 11% of the 0.1 mg/L limitTrihalomethanes11%Colour: 3 mg/L Pt/Co, 15% of the 20 mg/L Pt/Co limitColour15%Nitrate: 25.7 mg/L, 51% of the 50 mg/L limitNitrate51%
  1. Nitrate51%
  2. Colour15%
  3. Trihalomethanes11%
  4. Ammonia8%
  5. Aluminium6%
  6. Fluoride5%
  7. Iron5%
  8. Mercury4%
  9. Manganese4%
  10. Turbidity3%
  11. Nickel3%
  12. Boron3%
  13. Copper2%
  14. Arsenic2%
  15. Nitrite2%
  16. Bromate1%
  17. Lead1%
  18. Selenium1%
  19. Antimony<1%
  20. Cadmium<1%
  21. Chromium<1%
  • pH 7.8 pH
  • Conductivity 630 µS/cm
  • Coliform Bacteria none found
  • E. coli none found
All 25 results as a table
SubstanceResultLegal limitShare of limit
pH7.8 pHNo legal limit–
Nitrate25.7 mg/L50 mg/L
51%
Lead0.00012 mg/L0.01 mg/L
1%
Conductivity630 µS/cmNo legal limit–
Coliform Bacteria0 count/100mlMust be zeroNone found
E. coli0 count/100mlMust be zeroNone found
Aluminium0.0113 mg/L0.2 mg/L
6%
Iron0.00928 mg/L0.2 mg/L
5%
Manganese0.00178 mg/L0.05 mg/L
4%
Colour3 mg/L Pt/Co20 mg/L Pt/Co
15%
Turbidity0.13 NTU4 NTU
3%
Trihalomethanes0.011 mg/L0.1 mg/L
11%
Nitrite0.009 mg/L0.5 mg/L
2%
Ammonia0.039 mg/L0.5 mg/L
8%
Copper0.038 mg/L2 mg/L
2%
Arsenic0.00019 mg/L0.01 mg/L
2%
Cadmium0.000031 mg/L0.005 mg/L
<1%
Chromium0.00023 mg/L0.05 mg/L
<1%
Nickel0.00058 mg/L0.02 mg/L
3%
Antimony0.000036 mg/L0.005 mg/L
<1%
Selenium0.00043 mg/L0.04 mg/L
1%
Boron0.0255 mg/L1 mg/L
3%
Bromate0.00013 mg/L0.01 mg/L
1%
Fluoride0.08 mg/L1.5 mg/L
5%
Mercury0.00004 mg/L0.001 mg/L
4%
Outside your tap

Your river is the North and South Streams in the Lydden Valley, rated poor

The Environment Agency rated the North and South Streams in the Lydden Valley 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 fish 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

CT14 in short

Tap water in CT14 (Dover) is supplied by Southern Water in the Dover Central zone and scores 9.5 out of 10, against an England and Wales average of 9.0. None of the 25 tested substances came close to a limit. The latest sample is from 30 April 2026.

  • Nitrate is the reading closest to its limit, at 51% of the 50 mg/L maximumIt passed with room to spare, and everything else tested sat further below its limit. See every reading
  • 2nd cleanest of 6 areas tested in DoverOnly 1 area in Dover scored higher. The best is CT13 on 9.5.
  • Scores higher than 4 of 5 neighbouring districtsWater here is typical for the immediate area, which usually means the same treatment works and the same supply zone.

Next door

CT39.4 out of 10CT169.4 out of 10CT179.4 out of 10CT139.5 out of 10CT159.4 out of 10

Questions about CT14 water

Is CT14 tap water safe to drink?

Based on the latest tests, CT14 (Dover) water scores 9.5/10, which is safe. 0 of 25 tested contaminants exceeded recommended levels. Water is supplied by Southern Water.

What contaminants are in CT14 water?

We tested 25 contaminants in CT14 water. None exceeded recommended safe levels.

Who supplies water in CT14?

CT14 (Dover) is supplied by Southern Water. You can view their full profile and compliance data on our supplier page.

Should I use a water filter in CT14?

CT14 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 CT14 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for CT14, 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 CT14?

The Environment Agency rated the North and South Streams in the Lydden Valley 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 fish 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 CT14, 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 CT14

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
pH7.13 pHNone
Temperature15.9 °CNone
Conductivity1381 µS/cmNone
Ammonia0.054 mg/L0.5 mg/L
Nitrate8 mg/L50 mg/L
Nitrite0.04 mg/L0.5 mg/L
Phosphate0.065 mg/LNone
Dissolved Oxygen5.74 mg/LNone

Get alerts for your area

We'll email you when water quality data changes for CT14.

Source: Southern Water 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