WaterWater Hardness in Colchester
Essex, East Of England • 16 postcode districts
Hard
The average water hardness in Colchester is 288 ppm, classified as hard. Colchester is served by Anglian Water, covering 16 postcode districts across Essex in the East Of England region.
Hardness varies across the area — see the table below for a breakdown by postcode district.
Water Hardness by Postcode in Colchester
| Postcode | Water Company | Hardness | PPM | Level |
|---|---|---|---|---|
| CO16 | Anglian Water | 304 ppm | Very Hard | |
| CO15 | Anglian Water | 303 ppm | Very Hard | |
| CO14 | Anglian Water | 302 ppm | Very Hard | |
| CO13 | Anglian Water | 301 ppm | Very Hard | |
| CO12 | Anglian Water | 300 ppm | Hard | |
| CO11 | Anglian Water | 299 ppm | Hard | |
| CO10 | Anglian Water | 298 ppm | Hard | |
| CO9 | Anglian Water | 281 ppm | Hard | |
| CO8 | Anglian Water | 280 ppm | Hard | |
| CO7 | Anglian Water | 279 ppm | Hard | |
| CO6 | Anglian Water | 278 ppm | Hard | |
| CO5 | Anglian Water | 277 ppm | Hard | |
| CO4 | Anglian Water | 276 ppm | Hard | |
| CO3 | Anglian Water | 275 ppm | Hard | |
| CO2 | Anglian Water | 274 ppm | Hard | |
| CO1 | Anglian Water | 273 ppm | Hard |
Water Companies Serving Colchester
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