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tapwater
England and Wales average 9.0

Tap water in ME19, Tonbridge and MallingToo few tap tests to call it.

Supplied by Southern Water. 8 substances, latest on 14 September 2026. These are river and groundwater samples near ME19, not tests of treated tap water, so treat the score as a rough guide.

See the filter we recommendSee everything that was tested

7.7 / 10

The tank is as full as the score.

What to do about it

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What's in a glass of ME19 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.

Ammonia came closest to a limit, at 46% of it. 2 of 3 substances used under a quarter of theirs.

0%25%50%75%limitLegal limitNitrate: 4 mg/L, 8% of the 50 mg/L limitNitrate8%Nitrite: 0.071 mg/L, 14% of the 0.5 mg/L limitNitrite14%Ammonia: 0.23 mg/L, 46% of the 0.5 mg/L limitAmmonia46%
  1. Ammonia46%
  2. Nitrite14%
  3. Nitrate8%
  • pH 7.58 pH
  • Temperature 18.5 °C
  • Conductivity 469 µS/cm
  • Phosphate 0.27 mg/L
  • Dissolved Oxygen 8.03 mg/L
All 8 results as a table
SubstanceResultLegal limitShare of limit
pH7.58 pHNo legal limit–
Temperature18.5 °CNo legal limit–
Conductivity469 µS/cmNo legal limit–
Ammonia0.23 mg/L0.5 mg/L
46%
Nitrate4 mg/L50 mg/L
8%
Nitrite0.071 mg/L0.5 mg/L
14%
Phosphate0.27 mg/LNo legal limit–
Dissolved Oxygen8.03 mg/LNo legal limit–
Outside your tap

Your river is the Leybourne Stream, rated poor

The Environment Agency rated the Leybourne Stream 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

ME19 in short

Tap water in ME19 (Tonbridge and Malling) is supplied by Southern Water in the Tonbridge and Malling Central zone and scores 7.7 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 14 September 2026.

  • Ammonia is the reading closest to its limit, at 46% of the 0.5 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 Tonbridge and MallingSquarely mid-table for Tonbridge and Malling, between TN15 on 9.5 and TN9 on 6.9.
  • 1.3 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

ME69.1 out of 10ME209.4 out of 10TN106.9 out of 10 · 150 mg/LTN116.9 out of 10 · 150 mg/LTN96.9 out of 10 · 150 mg/LTN159.5 out of 10 · 150 mg/LME188.7 out of 10

Questions about ME19 water

Is ME19 tap water safe to drink?

Based on the latest tests, ME19 (Tonbridge and Malling) water scores 7.7/10, which is safe. 0 of 8 tested contaminants exceeded recommended levels. Water is supplied by Southern Water.

What contaminants are in ME19 water?

We tested 8 contaminants in ME19 water. None exceeded recommended safe levels.

Who supplies water in ME19?

ME19 (Tonbridge and Malling) 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 ME19?

ME19 water scored 7.7/10 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 ME19 water?

No PFAS (forever chemicals) result is attached to the tap-water tests for ME19, 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 ME19?

The Environment Agency rated the Leybourne Stream 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 ME19, which is treated before it reaches homes.

Keep reading

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