Tap water in TA4, SomersetTurbidity is over the limit.Soft.
Supplied by Wessex Water. 9 substances, latest on 1 May 2026. Turbidity came in above the legal limit. Everything else passed.
7.2 / 10
The tank is as full as the score. The specks are the minerals that make water hard.
What to do about it
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Removes turbidity, the result that stood out in TA4.
BRITA Marella XL + MAXTRA PRO
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Basic chlorine and taste improvement on a budget
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What's in a glass of TA4 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.
Turbidity is over its legal limit, at 440% of it.
- Turbidity440%
- Ammonia37%
- Nitrite8%
- Nitrate3%
- pH 7.81 pH
- Temperature 11.6 °C
- Conductivity 239 µS/cm
- Phosphate 0.011 mg/L
- Dissolved Oxygen 10.5 mg/L
All 9 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| Turbidity | 17.6 NTU | 4 NTU | 440% |
| pH | 7.81 pH | No legal limit | – |
| Temperature | 11.6 °C | No legal limit | – |
| Conductivity | 239 µS/cm | No legal limit | – |
| Nitrate | 1.7 mg/L | 50 mg/L | 3% |
| Phosphate | 0.011 mg/L | No legal limit | – |
| Dissolved Oxygen | 10.5 mg/L | No legal limit | – |
| Nitrite | 0.0388 mg/L | 0.5 mg/L | 8% |
| Ammonia | 0.187 mg/L | 0.5 mg/L | 37% |
50mg of limescale minerals in every litre
Soft water. Kind to kettles, boilers and skin
You will not need a softener here, and you will use less soap and detergent than most of England.
Your river is the Halse WTR, rated moderate
The Environment Agency rated the Halse WTR as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by 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
TA4 in short
Tap water in TA4 (Somerset) is supplied by Wessex Water in the Somerset Central zone and scores 7.2 out of 10, against an England and Wales average of 9.0. 1 of 9 tested substances was close to or over a limit. The latest sample is from 1 May 2026.
- Turbidity was measured at 17.6 NTU, 4.4 times the UK limitIt is the only one of 9 tested substances to go over its limit. See the full results
- 36th cleanest of 40 areas tested in Somerset4 areas in Somerset scored lower. The best is BA3 on 9.5.
- Every one of the 10 neighbouring districts scores higherBA7 next door scores 9.3, against 7.2 here. Supply zones, not distance, explain the gap. See BA7
Questions about TA4 water
Is TA4 tap water safe to drink?
Based on the latest tests, TA4 (Somerset) water scores 7.2/10, which is safe. 1 of 9 tested contaminants exceeded recommended levels. Water is supplied by Wessex Water.
What contaminants are in TA4 water?
We tested 9 contaminants in TA4 water. 1 were flagged, including Turbidity.
Who supplies water in TA4?
TA4 (Somerset) is supplied by Wessex Water. You can view their full profile and compliance data on our supplier page.
Is TA4 water hard or soft?
Water in TA4 (Somerset) has a hardness of 50 mg/L CaCO3, which is classified as soft. Soft water is gentle on appliances and skin.
Should I use a water filter in TA4?
With 1 contaminant above recommended levels in TA4, a water filter could help. A filter jug or under-sink filter can reduce most common contaminants. See our filter recommendations for your area.
Are there PFAS forever chemicals in TA4 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for TA4, 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 TA4?
The Environment Agency rated the Halse WTR as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by 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 TA4, which is treated before it reaches homes.
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