Hertsmere, England
Your water in EN5
Hertsmere
Your water is mostly fine
We checked 10 things and found 3 worth knowing about
FairYour water is mostly fine
We checked 10 things and found 3 worth knowing about
FairBased on environmental water monitoring, your water in EN5 (Hertsmere) is supplied by Thames Water. Based on the latest data (last sampled 2005-09-29), 10 things were tested with 3 exceeding recommended levels. The overall water quality score for EN5 is 6.8/10.
Environmental monitoringHow we score
Last sampled 2005-09-29 · Tap water tests not yet available for Thames Water
This data is over 20 years old. The Environment Agency hasn't sampled near EN5 recently. Scores reflect the most recent available data.
What we found
Here’s what government tests found in water near you.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| Ammonia | 0.579 mg/L | 0.5 mg/L | — | Over limit |
| Fluoride | 1.33 mg/L | 1.5 mg/L | 1.5 mg/L | Watch |
| Iron | 0.167 mg/L | 0.2 mg/L | 0.3 mg/L | Watch |
Source: Environment Agency
What removes these from your water
3 contaminants flagged in EN5. These filters are matched to what was found in your water.
Our pick for EN5
Waterdrop G3P600 Reverse Osmosis
Under-Sink · NSF/ANSI 58, NSF/ANSI 372
The Waterdrop G3P600 Reverse Osmosis is certified to remove Fluoride, which was flagged in EN5. Fits under your kitchen sink for filtered water on tap.
Removes from your water
Fluoride
Check price & reviews
£399
4.6/5
2 more options
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
Environmental water nearby
Rivers, groundwater and reservoirs near EN5. This is environmental monitoring — not your tap water.
| Substance | Found | Safe Level | WHO Safe Level | Status |
|---|---|---|---|---|
| Ammonia | 0.579 mg/L | 0.5 mg/L | — | Over limit |
| Fluoride | 1.33 mg/L | 1.5 mg/L | 1.5 mg/L | Watch |
| Iron | 0.167 mg/L | 0.2 mg/L | 0.3 mg/L | Watch |
Source: Environment Agency
Get alerts for your area
We'll email you when water quality data changes for EN5.