WaterAffinity Water Water Hardness
Home Counties • 33 postcodes served
Hard
268
Average ppm
224
Minimum ppm
346
Maximum ppm
33
Postcodes Served
About Affinity Water
Affinity Water is the largest water-only company in the UK, serving 3.6 million customers across the Home Counties north of London. Chalk aquifer sources produce consistently hard water.
Hardness Distribution
0
Soft (0%)
0
Slightly Hard (0%)
0
Moderate (0%)
24
Hard (73%)
9
Very Hard (27%)
All Areas Served by Affinity Water
| Postcode | Town | Hardness | PPM | Level |
|---|---|---|---|---|
| EN9 | Waltham Abbey | 346 ppm | Very Hard | |
| EN8 | Waltham Cross | 345 ppm | Very Hard | |
| EN7 | Waltham Cross | 344 ppm | Very Hard | |
| EN6 | Potters Bar | 343 ppm | Very Hard | |
| EN5 | Barnet | 342 ppm | Very Hard | |
| EN4 | Barnet | 341 ppm | Very Hard | |
| EN3 | Enfield | 340 ppm | Very Hard | |
| EN2 | Enfield | 339 ppm | Very Hard | |
| EN1 | Enfield | 338 ppm | Very Hard | |
| W1D | London | 269 ppm | Hard | |
| WD25 | Watford | 255 ppm | Hard | |
| AL10 | Hatfield | 254 ppm | Hard | |
| WD24 | Watford | 254 ppm | Hard | |
| WD23 | Bushey | 253 ppm | Hard | |
| AL9 | Hatfield | 247 ppm | Hard | |
| EN11 | Hoddesdon | 247 ppm | Hard | |
| AL8 | Welwyn Garden City | 246 ppm | Hard | |
| EN10 | Broxbourne | 246 ppm | Hard | |
| AL7 | Welwyn Garden City | 245 ppm | Hard | |
| AL6 | Welwyn | 244 ppm | Hard | |
| AL5 | Harpenden | 243 ppm | Hard | |
| AL4 | St Albans | 242 ppm | Hard | |
| AL3 | St Albans | 241 ppm | Hard | |
| AL2 | St Albans | 240 ppm | Hard | |
| AL1 | St Albans | 239 ppm | Hard | |
| WD7 | Radlett | 228 ppm | Hard | |
| WD6 | Borehamwood | 227 ppm | Hard | |
| WD19 | Watford | 226 ppm | Hard | |
| WD5 | Abbots Langley | 226 ppm | Hard | |
| WD18 | Watford | 225 ppm | Hard | |
| WD4 | Kings Langley | 225 ppm | Hard | |
| WD17 | Watford | 224 ppm | Hard | |
| WD3 | Rickmansworth | 224 ppm | Hard |
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