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Bolton · Bolton
United Utilities
Water safety
Water safety| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Free Chlorinemg CL2/l | 0.66 | 0.2 – 1 | 0.013 ▲ |
|---|
| Total Chlorinemg CL2/l | 0.76 | No limit | 0.15 |
|---|
General
General| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Hardnessmg CaCO3/l | 22.6 ● (Near the limit)estimated | 80 – 459 | 22.6 ● |
|---|
| pH | 7.3 | 6.5 – 9.5 | 7.3 |
|---|
| TurbidityNTU | 0.19 | ≤ 4 | 0.019 |
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| ColorColor Units | 1.62 | ≤ 15 | 1.62 |
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| ConductivityμS / cm | 122.8 | ≤ 2,500 | 122.8 |
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| TDSmg/l | 78.6estimated | 0 – 1,199 | 78.6 |
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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 | 67 | ≤ 0 | 6.7 |
|---|
| BacteriasNMP/100ml | 67 | ≤ 0 | 6.7 |
|---|
| EnterococcusUFC/100ml | 0 | ≤ 0 | 0 |
|---|
Chemical parameters
Chemical parameters| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Mercuryμg Hg/l | Not reported | ≤ 1 | — |
|---|
| Nitritesmg NO2/l | 0.009 | ≤ 0.5 | 0.004 |
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| Nitratesmg NO3/l | 3.42 | ≤ 50 | 1.03 |
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Metals
Metals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Aluminiumμg/l | 12.9 | ≤ 200 | 12.9 |
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| Antimonyμg/l | 0.31 | ≤ 5 | 0.31 |
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| Arsenicμg/l | 0.48 | ≤ 10 | 0.24 |
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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 | 0.017 | ≤ 2,000 | 0.001 |
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| Ironμg/l | 14.2 | ≤ 200 | 14.2 |
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| Manganeseμg/l | 1.2 | ≤ 50 | 1.2 |
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| Leadμg/l | 1.04 | ≤ 10 | 0.052 |
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| Nickelμg/l | 1.33 | ≤ 20 | 1.33 |
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| Seleniumμg/l | 0.85 | ≤ 10 | 0.85 |
|---|
| Sodiummg/l | 17.2 | ≤ 200 | 17.2 |
|---|
Chlorine by-products
Chlorine by-products| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Total Trichloroethyleneμg/l | 0 | ≤ 10 | 0 |
|---|
| Total Trihalomethanesμg/l | 25.4 | ≤ 100 | 1.27 |
|---|
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 | 0.046 | 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.
4737 of 4746 tests within UK limits
