Tap water in BN22, EastbourneToo few tap tests to call it.
Supplied by Southern Water. 8 substances, latest on 7 September 2026. These are river and groundwater samples near BN22, not tests of treated tap water, so treat the score as a rough guide.
9.0 / 10
The tank is as full as the score.
What to do about it

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What's in a glass of BN22 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 24% of it. 3 of 3 substances used under a quarter of theirs.
- Ammonia24%
- Nitrite4%
- Nitrate<1%
- pH 7.33 pH
- Temperature 19.1 °C
- Conductivity 652 µS/cm
- Phosphate 0.19 mg/L
- Dissolved Oxygen 2.83 mg/L
All 8 results as a table
Your river is the Langney Sewer at Eastbourne, rated poor
The Environment Agency rated the Langney Sewer at Eastbourne 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 dissolved oxygen, 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.
None of this is a test of your tap water. Environment Agency record · River health across England
BN22 in short
Tap water in BN22 (Eastbourne) is supplied by Southern Water in the Eastbourne Central zone and scores 9.0 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 7 September 2026.
- 3rd cleanest of 4 areas tested in Eastbourne1 area in Eastbourne scored lower. The best is BN20 on 9.3.
- Nothing tested came within 40% of its legal limitThe highest was Ammonia at 24% of the 0.5 mg/L maximum. See every reading
- Scores higher than 2 of 4 neighbouring districtsWater here is typical for the immediate area, which usually means the same treatment works and the same supply zone.
Questions about BN22 water
Is BN22 tap water safe to drink?
Based on the latest tests, BN22 (Eastbourne) water scores 9/10, which is safe. 0 of 8 tested contaminants exceeded recommended levels. Water is supplied by Southern Water.
What contaminants are in BN22 water?
We tested 8 contaminants in BN22 water. None exceeded recommended safe levels.
Who supplies water in BN22?
BN22 (Eastbourne) 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 BN22?
BN22 water scored 9/10 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 BN22 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for BN22, 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 BN22?
The Environment Agency rated the Langney Sewer at Eastbourne 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 dissolved oxygen, 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. This is a rating of the river, not of tap water in BN22, which is treated before it reaches homes.
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