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Dacorum, England
Dacorum
Your water is safe
We checked 7 things and found 1 worth knowing about
GoodYour water is safe
We checked 7 things and found 1 worth knowing about
GoodTap water in HP5 (Dacorum, Dacorum) is supplied by Thames Water and scored 8 out of 10 for safety based on 7 tested parameters. 1 contaminant exceeded recommended safe levels: Ammonia. Data is from samples last taken 2025-04-15, sourced from the Environment Agency Water Quality Archive.
Last sampled 2025-04-15 · Tap water tests not yet available for Thames Water
Here’s what government tests found in water near you.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| Ammonia | 0.536 mg/L | 0.5 mg/L | — | Over limit |
Source: Environment Agency
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Rivers, groundwater and reservoirs near HP5. This is environmental monitoring — not your tap water.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| Ammonia | 0.536 mg/L | 0.5 mg/L | — | Over limit |
Source: Environment Agency
We'll email you when water quality data changes for HP5.