143mg of limescale minerals in every litre, the median across TS districts
Is Teesside a hard water area?
No. Tap water across the TS postcode area is moderately hard, with some scale over time but rarely enough to need a softener, with a median of 143 mg/L calcium carbonate. It ranges from 70 mg/L in TS29 to 480 mg/L in TS28, from 23 districts with their own water company reading and 6 estimated from the area.
- Soft
- 0 to 60 mg/L
- Moderately soft
- 60 to 120 mg/L
- Slightly hard
- 120 to 180 mg/L
- Hard
- 180 to 200 mg/L
- Very hard
- 200 to 400 mg/L
Hardness by TS district
Hardest first. Hard starts at 180 mg/L, very hard at 250. Districts marked with an asterisk take the area's median rather than a reading of their own.
| District | Area | mg/L | Hardness |
|---|---|---|---|
| TS28 | County Durham | 480 | very hard |
| TS27 | County Durham | 480 | very hard |
| TS19 | Stockton-on-Tees | 158 | moderately hard |
| TS20 | Stockton-on-Tees | 158 | moderately hard |
| TS23 | Stockton-on-Tees | 155 | moderately hard |
| TS15 | Stockton-on-Tees | 150 | moderately hard |
| TS17 | Stockton-on-Tees | 150 | moderately hard |
| TS8 | Middlesbrough | 150 | moderately hard |
| TS1 | Middlesbrough | 143 | moderately hard |
| TS2 | Middlesbrough | 143 | moderately hard |
| TS7 | Middlesbrough | 143 | moderately hard |
| TS9* | North Yorkshire | 143 | moderately hard |
| TS22* | Stockton-on-Tees | 143 | moderately hard |
| TS25* | Hartlepool | 143 | moderately hard |
| TS14 | Redcar and Cleveland | 143 | moderately hard |
| TS26* | Hartlepool | 143 | moderately hard |
| TS6 | Redcar and Cleveland | 143 | moderately hard |
| TS11* | Redcar and Cleveland | 143 | moderately hard |
| TS24* | Hartlepool | 143 | moderately hard |
| TS18 | Stockton-on-Tees | 138 | moderately hard |
| TS16 | Stockton-on-Tees | 138 | moderately hard |
| TS4 | Middlesbrough | 133 | moderately hard |
| TS5 | Middlesbrough | 133 | moderately hard |
| TS3 | Middlesbrough | 133 | moderately hard |
| TS13 | Redcar and Cleveland | 130 | moderately hard |
| TS12 | Redcar and Cleveland | 130 | moderately hard |
| TS10 | Redcar and Cleveland | 130 | moderately hard |
| TS21 | County Durham | 115 | moderately soft |
| TS29 | County Durham | 70 | moderately soft |
You do not need a softener in Teesside.
At 143 mg/L the practical effects are minor. If you notice anything, it is usually chlorine rather than hardness: a shower filter or a filter jug deals with that.
Check your exact postcode
The area figure is a median. Your district can sit anywhere between 70 and 480 mg/L.
Questions about Teesside water
Is Teesside a hard water area?
No. The median hardness across TS postcode districts is 143 mg/L calcium carbonate, which is moderately hard. 7% of the 29 districts we hold readings for are hard or very hard (180 mg/L and above).
What is the water hardness in Teesside?
Between 70 and 480 mg/L depending on the district, with a median of 143. The hardest measured district is TS28 at 480 mg/L and the softest is TS29 at 70. Figures come from water company drinking-water tests, with postcode-area estimates for districts that have no reading of their own.
Do I need a water softener in Teesside?
Usually not. At a median of 143 mg/L limescale is a minor issue in Teesside. A filter jug or a shower filter covers the everyday effects. Only districts at 180 mg/L or above are worth a softener quote.
Hardness as mg/L calcium carbonate from water company drinking-water tests and postcode checkers. See the UK hardness map for every area.