Stevenage, England
Stevenage
Your water is safe
We checked 24 things and found nothing to worry about
ExcellentYour water is safe
We checked 24 things and found nothing to worry about
ExcellentBased on drinking water tests, your water in SG1 (Stevenage) is supplied by Affinity Water. Based on the latest data (last sampled 2025-05-15), 24 things were tested with 0 exceeding recommended levels. The overall water quality score for SG1 is 9.5/10.
Last sampled 2025-05-15 · 2,234 samples
Results from drinking water tests in Stevenage.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| Coliform Bacteria | 0 count/100ml | 0 count/100ml | 0 count/100ml | Safe |
| E. coli | 0 count/100ml | 0 count/100ml | 0 count/100ml | Safe |
| Colour | 0 mg/L Pt/Co | 20 mg/L Pt/Co | — | Safe |
| Conductivity | 710 µS/cm | — | — | Safe |
| Turbidity | 0 NTU | 4 NTU | 4 NTU | Safe |
| Nitrite | 0 mg/L | 0.5 mg/L | 3 mg/L | Safe |
Source: Stream Water Data Portal
General-purpose filters for common UK tap water concerns.

Our pick for SG1
BRITA Marella XL + MAXTRA PRO
Jug Filter · TUV SUD
A solid all-round filter for SG1. 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 SG1. This is environmental monitoring — not your tap water.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| Iron | 0.037 mg/L | 0.2 mg/L | 0.3 mg/L | Safe |
| pH | 8.11 pH | — | — | Safe |
| Temperature | 13 °C | — | — | Safe |
| Conductivity | 360 µS/cm | — | — | Safe |
| Phosphate | 0.037 mg/L | — | — | Safe |
| Nitrite | 0.011 mg/L | 0.5 mg/L | 3 mg/L | Safe |
Source: Environment Agency
We'll email you when water quality data changes for SG1.