Tap water hardness in East Riding of Yorkshire
We have published hardness data for 22 cities in East Riding of Yorkshire. The median is 288 mg/L; the hardest water is in Cottingham (371 mg/L), the softest in Brandesburton (213 mg/L).
100 % of these cities have hard or very hard water (over 120 mg/L).
UK suppliers report mg/L CaCO₃ and often Clark degrees (1 °Clark = 14.25 mg/L).
Cities in East Riding of Yorkshire, hardest first
| mg/L | mg/L | ||
|---|---|---|---|
| Cottingham | 371 | 371 | very hard |
| Beverley | 355 | 355 | very hard |
| Hessle | 327 | 327 | very hard |
| Brough | 302 | 302 | very hard |
| South Cave | 302 | 302 | very hard |
| Gilberdyke | 297 | 297 | very hard |
| Hook | 297 | 297 | very hard |
| Pocklington | 296 | 296 | very hard |
| Flamborough | 295 | 295 | very hard |
| Bridlington | 290 | 290 | very hard |
| Driffield | 288 | 288 | very hard |
| Leconfield | 288 | 288 | very hard |
| Goole | 280 | 280 | very hard |
| Thorngumbald | 280 | 280 | very hard |
| Bubwith | 270 | 270 | very hard |
| Hedon | 270 | 270 | very hard |
| Preston | 257 | 257 | very hard |
| Eastrington | 252 | 252 | very hard |
| Hornsea | 238 | 238 | very hard |
| Withernsea | 230 | 230 | very hard |
| Tickton | 216 | 216 | very hard |
| Brandesburton | 213 | 213 | very hard |