WaterWater Hardness in Dorchester
Dorset, South West • 11 postcode districts
Hard
The average water hardness in Dorchester is 220 ppm, classified as hard. Dorchester is served by Wessex Water, covering 11 postcode districts across Dorset in the South West region.
Hardness varies across the area — see the table below for a breakdown by postcode district.
Water Hardness by Postcode in Dorchester
| Postcode | Water Company | Hardness | PPM | Level |
|---|---|---|---|---|
| DT9 | Wessex Water | 227 ppm | Hard | |
| DT8 | Wessex Water | 226 ppm | Hard | |
| DT7 | Wessex Water | 225 ppm | Hard | |
| DT6 | Wessex Water | 224 ppm | Hard | |
| DT5 | Wessex Water | 223 ppm | Hard | |
| DT4 | Wessex Water | 222 ppm | Hard | |
| DT3 | Wessex Water | 221 ppm | Hard | |
| DT2 | Wessex Water | 220 ppm | Hard | |
| DT1 | Wessex Water | 219 ppm | Hard | |
| DT11 | Wessex Water | 207 ppm | Hard | |
| DT10 | Wessex Water | 206 ppm | Hard |
Water Companies Serving Dorchester
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