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Headley · Mole Valley
SES Water
Water safety
Water safety| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Free Chlorinemg CL2/l | Not reported | 0.2 – 1 | — |
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| Total Chlorinemg CL2/l | 0.21 | No limit | 0.042 |
|---|
General
General| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Hardnessmg CaCO3/l | 186.3 | 80 – 459 | 186.3 |
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| pH | 7.64 | 6.5 – 9.5 | 7.64 |
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| TurbidityNTU | 0.08 | ≤ 4 | 0.008 |
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| ColorColor Units | 1.1 | ≤ 15 | 1.1 |
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| TDSmg/l | 285estimated | 0 – 1,199 | 285 |
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| OdorTON | 0 | ≤ 3 | 0 |
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| Alkalinitymg CaCO3/l | 117.3 | No limit | 117.3 |
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Pathogens
Pathogens| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| eColiUFC/100ml | 0 | ≤ 0 | 0 |
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| BacteriasNMP/100ml | 0 | ≤ 0 | 0 |
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| EnterococcusUFC/100ml | 0 | ≤ 0 | 0 |
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Chemical parameters
Chemical parameters| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Mercuryμg Hg/l | Not reported | ≤ 1 | — |
|---|
| Nitritesmg NO2/l | 0.1 | ≤ 0.5 | 0.04 |
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| Nitratesmg NO3/l | 28.9 | ≤ 50 | 8.67 |
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Minerals
Minerals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Magnesiummg/l | 3.42 | No limit | 3.42 |
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| Calciummg/l | 74.5 | No limit | 74.5 |
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Metals
Metals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Aluminiumμg/l | 12.1 | ≤ 200 | 12.1 |
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| Antimonyμg/l | 0.13 | ≤ 5 | 0.13 |
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| Arsenicμg/l | 0.2 | ≤ 10 | 0.1 |
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| Cadmiumμg/l | 0.06 | ≤ 5 | 0.06 |
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| Chromiumμg/l | 0.8 | ≤ 50 | 0.8 |
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| Copperμg/l | 60 | ≤ 2,000 | 3 |
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| Ironμg/l | 7.3 | ≤ 200 | 7.3 |
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| Manganeseμg/l | 0.9 | ≤ 50 | 0.9 |
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| Leadμg/l | 0.5 | ≤ 10 | 0.025 |
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| Nickelμg/l | 2.5 | ≤ 20 | 2.5 |
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| Seleniumμg/l | 0.58 | ≤ 10 | 0.58 |
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| Sodiummg/l | 20.9 | ≤ 200 | 20.9 |
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Chlorine by-products
Chlorine by-products| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Total Trichloroethyleneμg/l | 1.3 | ≤ 10 | 0.065 |
|---|
| Total Trihalomethanesμg/l | 19.6 | ≤ 100 | 0.98 |
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Perfluorinated chemicals
Perfluorinated chemicals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Total PFASug/L | Not reported | ≤ 0.1 | — |
|---|
| PFAS 4ng/l | Not reported | No limit | — |
|---|
| PFAS 21ng/l | Not reported | No limit | — |
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Other
Other| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Ammoniamg/l | 0.04 | No limit | 0.012 |
|---|
Data collected from the water company for your area. Quality ranges are based on WHO guidelines and the UK drinking water regulations.
849 of 849 tests within UK limits
