North East Derbyshire, England
North East Derbyshire
Your water is safe
We checked 19 things and found nothing to worry about
GoodYour water is safe
We checked 19 things and found nothing to worry about
GoodBased on drinking water tests, your water in S21 (North East Derbyshire) is supplied by Severn Trent. Based on the latest data (last sampled 2024-12-22), 19 things were tested with 0 exceeding recommended levels. The overall water quality score for S21 is 8.9/10.
Last sampled 2024-12-22 · 936 samples
This data is 15 months old. Newer data may be available soon.
Results from drinking water tests in North East Derbyshire.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| Colour | 0.8 mg/L Pt/Co | 20 mg/L Pt/Co | — | Safe |
| Turbidity | 0.12 NTU | 4 NTU | 4 NTU | Safe |
| pH | 7.66 pH | — | — | Safe |
| Nitrate | 26 mg/L | 50 mg/L | 50 mg/L | Safe |
| Nitrite | 0.003 mg/L | 0.5 mg/L | 3 mg/L | Safe |
| Aluminium | 0.009 mg/L | 0.2 mg/L | — | Safe |
Source: Stream Water Data Portal
General-purpose filters for common UK tap water concerns.

Our pick for S21
BRITA Marella XL + MAXTRA PRO
Jug Filter · TUV SUD
A solid all-round filter for S21. Removes Chlorine, Lead, Copper and more. No installation needed.
£25
Recommendations matched to your area's water data, not sponsorship. We may earn a commission at no extra cost to you. Affiliate disclosure · Full filter guide
Rivers, groundwater and reservoirs near S21. This is environmental monitoring — not your tap water.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| Ammonia | 0.426 mg/L | 0.5 mg/L | — | Watch |
| Iron | 0.771 mg/L | 0.2 mg/L | 0.3 mg/L | Over limit |
Source: Environment Agency
We'll email you when water quality data changes for S21.