Tap water in DT6, DorsetTurbidity is over the limit.Very hard.
Supplied by Wessex Water. 9 substances, latest on 6 August 2023. Turbidity came in above the legal limit. Everything else passed.
8.0 / 10
The tank is as full as the score. The specks are the minerals that make water hard.
What to do about it
Osmio PRO-III Ultimate Whole House
£499typical price
Removes turbidity, the result that stood out in DT6.
Stop the limescale
At 305 mg/L a softener is the only thing that stops limescale. Filters do not soften water.
BWT E1 Single Lever
£250typical price
Removes turbidity, the result that stood out in DT6.
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What's in a glass of DT6 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 583% of it.
- Turbidity583%
- Ammonia12%
- Nitrate6%
- Nitrite3%
- Temperature 16.4 °C
- pH 7.72 pH
- Conductivity 639 µS/cm
- Phosphate 0.072 mg/L
- Dissolved Oxygen 10.9 mg/L
All 9 results as a table
| Substance | Result | Legal limit | Share of limit |
|---|---|---|---|
| Turbidity | 23.3 NTU | 4 NTU | 583% |
| Temperature | 16.4 °C | No legal limit | – |
| pH | 7.72 pH | No legal limit | – |
| Conductivity | 639 µS/cm | No legal limit | – |
| Ammonia | 0.061 mg/L | 0.5 mg/L | 12% |
| Nitrate | 3.03 mg/L | 50 mg/L | 6% |
| Nitrite | 0.0164 mg/L | 0.5 mg/L | 3% |
| Phosphate | 0.072 mg/L | No legal limit | – |
| Dissolved Oxygen | 10.9 mg/L | No legal limit | – |
305mg of limescale minerals in every litre, typical for the DT area. DT6 has no reading of its own.
This is the water that furs up kettles
Very hard on the UK scale. It is fine to drink. It is hard on boilers, showers, skin and anything that heats water, and a jug or tap filter will not change that.
Softener quotes for DT6
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Your river is the Simene, rated moderate
The Environment Agency rated the Simene as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by 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
DT6 in short
Tap water in DT6 (Dorset) is supplied by Wessex Water in the Dorset Central zone and scores 8.0 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 6 August 2023.
- The newest sample here is from August 2023That is over 3 years old, so treat this page as a record of past results rather than today's tap water.
- Turbidity was measured at 23.3 NTU, 5.8 times the UK limitIt is the only one of 9 tested substances to go over its limit. See the full results
- Among the hardest water in the country at 305 mg/LVery hard starts at 250 mg/L. At this level kettles scale up within weeks and a softener is a normal purchase across the DT postcode area. How hardness is measured
Questions about DT6 water
Is DT6 tap water safe to drink?
Based on the latest tests, DT6 (Dorset) water scores 8/10, which is safe. 1 of 9 tested contaminants exceeded recommended levels. Water is supplied by Wessex Water.
What contaminants are in DT6 water?
We tested 9 contaminants in DT6 water. 1 were flagged, including Turbidity.
Who supplies water in DT6?
DT6 (Dorset) is supplied by Wessex Water. You can view their full profile and compliance data on our supplier page.
Is DT6 water hard or soft?
No hardness reading has been published for DT6 itself. Across the DT postcode area the typical value is 305 mg/L CaCO3, which is classified as very hard. Hard water can cause limescale buildup. A water softener or filter jug may help.
Should I use a water filter in DT6?
With 1 contaminant above recommended levels in DT6, 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 DT6 water?
No PFAS (forever chemicals) result is attached to the tap-water tests for DT6, 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 DT6?
The Environment Agency rated the Simene as moderate for ecological health in its 2025 assessment, meaning the river is noticeably changed by pollution or engineering. It is held back by 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 DT6, which is treated before it reaches homes.
Keep reading
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