North Hertfordshire, England
North Hertfordshire
Your water is safe
We checked 10 things and found nothing to worry about
ExcellentYour water is safe
We checked 10 things and found nothing to worry about
ExcellentBased on environmental water monitoring, your water in AL6 (North Hertfordshire) is supplied by Affinity Water. Based on the latest data (last sampled 2023-01-24), 10 things were tested with 0 exceeding recommended levels. The overall water quality score for AL6 is 9.7/10.
Last sampled 2023-01-24 · Tap water tests not yet available for Affinity Water
This data is over 3 years old. The Environment Agency hasn't sampled near AL6 recently. Scores reflect the most recent available data.
Here’s what government tests found in water near you.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| pH | 8 pH | — | — | Safe |
| Temperature | 6 °C | — | — | Safe |
| Nitrate | 8.19 mg/L | 50 mg/L | 50 mg/L | Safe |
| Nitrite | 0.035 mg/L | 0.5 mg/L | 3 mg/L | Safe |
| Phosphate | 0.071 mg/L | — | — | Safe |
| Copper | 0.0012 mg/L | 2 mg/L | 2 mg/L | Safe |
Source: Environment Agency
General-purpose filters for common UK tap water concerns.

Our pick for AL6
BRITA Marella XL + MAXTRA PRO
Jug Filter · TUV SUD
A solid all-round filter for AL6. 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 AL6. This is environmental monitoring — not your tap water.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| pH | 8 pH | — | — | Safe |
| Temperature | 6 °C | — | — | Safe |
| Nitrate | 8.19 mg/L | 50 mg/L | 50 mg/L | Safe |
| Nitrite | 0.035 mg/L | 0.5 mg/L | 3 mg/L | Safe |
| Phosphate | 0.071 mg/L | — | — | Safe |
| Copper | 0.0012 mg/L | 2 mg/L | 2 mg/L | Safe |
Source: Environment Agency
We'll email you when water quality data changes for AL6.