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Cheshire West and Chester · Cheshire West and Chester
United Utilities
Water safety
Water safety| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Free Chlorinemg CL2/l | 0.56 | 0.2 – 1 | 0.011 ▲ |
|---|
| Total Chlorinemg CL2/l | 0.65 | No limit | 0.13 |
|---|
General
General| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Hardnessmg CaCO3/l | 89.8estimated | 80 – 459 | 89.8 |
|---|
| pH | 7.34 | 6.5 – 9.5 | 7.34 |
|---|
| TurbidityNTU | 0.19 | ≤ 4 | 0.019 |
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| ColorColor Units | 1.63 | ≤ 15 | 1.63 |
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| ConductivityμS / cm | 279.6 | ≤ 2,500 | 279.6 |
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| TDSmg/l | 178.9estimated | 0 – 1,199 | 178.9 |
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| OdorTON | 0 | ≤ 3 | 0 |
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Pathogens
Pathogens| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| ClostridiumUFC/100ml | 0 | ≤ 0 | 0 |
|---|
| eColiUFC/100ml | 0 | ≤ 0 | 0 |
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| BacteriasNMP/100ml | 0 | ≤ 0 | 0 |
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| EnterococcusUFC/100ml | 0 | ≤ 0 | 0 |
|---|
Chemical parameters
Chemical parameters| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Fluoridemg F/l | 0.99 | ≤ 1.5 | 0.3 |
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| Mercuryμg Hg/l | Not reported | ≤ 1 | — |
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| Nitritesmg NO2/l | 0.009 | ≤ 0.5 | 0.004 |
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| Nitratesmg NO3/l | 11.4 | ≤ 50 | 3.43 |
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Metals
Metals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Aluminiumμg/l | 6.2 | ≤ 200 | 6.2 |
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| Antimonyμg/l | 0.31 | ≤ 5 | 0.31 |
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| Arsenicμg/l | 1.47 | ≤ 10 | 0.73 |
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| Cadmiumμg/l | 0.09 | ≤ 5 | 0.09 |
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| Chromiumμg/l | 0.83 | ≤ 50 | 0.83 |
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| Copperμg/l | 0.022 | ≤ 2,000 | 0.001 |
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| Ironμg/l | 13.1 | ≤ 200 | 13.1 |
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| Manganeseμg/l | 0.6 | ≤ 50 | 0.6 |
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| Leadμg/l | 0.63 | ≤ 10 | 0.032 |
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| Nickelμg/l | 0.8 | ≤ 20 | 0.8 |
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| Seleniumμg/l | 0.85 | ≤ 10 | 0.85 |
|---|
| Sodiummg/l | 19.9 | ≤ 200 | 19.9 |
|---|
Chlorine by-products
Chlorine by-products| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Total Trichloroethyleneμg/l | 0 | ≤ 10 | 0 |
|---|
| Total Trihalomethanesμg/l | 30 | ≤ 100 | 1.5 |
|---|
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 | — |
|---|
Other
Other| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Ammoniamg/l | 0.047 | No limit | 0.014 |
|---|
Data collected from the water company for your area. Quality ranges are based on WHO guidelines and the UK drinking water regulations.
4850 of 4851 tests within UK limits
