WaterWater Hardness in Middlesbrough
Teesside, North East • 29 postcode districts
Slightly Hard
The average water hardness in Middlesbrough is 75 ppm, classified as slightly hard. Middlesbrough is served by Northumbrian Water, covering 29 postcode districts across Teesside in the North East region.
Hardness varies across the area — see the table below for a breakdown by postcode district.
Water Hardness by Postcode in Middlesbrough
| Postcode | Water Company | Hardness | PPM | Level |
|---|---|---|---|---|
| TS29 | Northumbrian Water | 103 ppm | Slightly Hard | |
| TS28 | Northumbrian Water | 102 ppm | Slightly Hard | |
| TS27 | Northumbrian Water | 101 ppm | Slightly Hard | |
| TS26 | Northumbrian Water | 100 ppm | Slightly Hard | |
| TS25 | Northumbrian Water | 99 ppm | Slightly Hard | |
| TS24 | Northumbrian Water | 98 ppm | Slightly Hard | |
| TS23 | Northumbrian Water | 97 ppm | Slightly Hard | |
| TS22 | Northumbrian Water | 96 ppm | Slightly Hard | |
| TS21 | Northumbrian Water | 95 ppm | Slightly Hard | |
| TS20 | Northumbrian Water | 94 ppm | Slightly Hard | |
| TS19 | Northumbrian Water | 70 ppm | Slightly Hard | |
| TS18 | Northumbrian Water | 69 ppm | Slightly Hard | |
| TS17 | Northumbrian Water | 68 ppm | Slightly Hard | |
| TS16 | Northumbrian Water | 67 ppm | Slightly Hard | |
| TS15 | Northumbrian Water | 66 ppm | Slightly Hard | |
| TS14 | Northumbrian Water | 65 ppm | Slightly Hard | |
| TS13 | Northumbrian Water | 64 ppm | Slightly Hard | |
| TS12 | Northumbrian Water | 63 ppm | Slightly Hard | |
| TS11 | Northumbrian Water | 62 ppm | Slightly Hard | |
| TS9 | Northumbrian Water | 62 ppm | Slightly Hard | |
| TS10 | Northumbrian Water | 61 ppm | Slightly Hard | |
| TS8 | Northumbrian Water | 61 ppm | Slightly Hard | |
| TS7 | Northumbrian Water | 60 ppm | Soft | |
| TS6 | Northumbrian Water | 59 ppm | Soft | |
| TS5 | Northumbrian Water | 58 ppm | Soft | |
| TS4 | Northumbrian Water | 57 ppm | Soft | |
| TS3 | Northumbrian Water | 56 ppm | Soft | |
| TS2 | Northumbrian Water | 55 ppm | Soft | |
| TS1 | Northumbrian Water | 54 ppm | Soft |
Water Companies Serving Middlesbrough
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