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Stockton-on-Tees · Stockton-on-Tees
Northumbrian Water
Water safety
Water safety| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Free Chlorinemg CL2/l | 0.47 | 0.2 – 1 | 0.009 ▲ |
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| Total Chlorinemg CL2/l | 0.56 | No limit | 0.11 |
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General
General| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Hardnessmg CaCO3/l | 146.1estimated | 80 – 459 | 146.1 |
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| pH | 7.86 | 6.5 – 9.5 | 7.86 |
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| TurbidityNTU | 0.24 | ≤ 4 | 0.024 |
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| ColorColor Units | 0.9 | ≤ 15 | 0.9 |
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| ConductivityμS / cm | 288.1 | ≤ 2,500 | 288.1 |
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| TDSmg/l | 184.4estimated | 0 – 1,199 | 184.4 |
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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 |
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| eColiUFC/100ml | 0 | ≤ 0 | 0 |
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| BacteriasNMP/100ml | 1 | ≤ 0 | 0.1 |
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| EnterococcusUFC/100ml | 0 | ≤ 0 | 0 |
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Chemical parameters
Chemical parameters| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Cyanide totalμg CN/l | 5.5 | ≤ 50 | 0.28 |
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| Fluoridemg F/l | 0.23 | ≤ 1.5 | 0.068 |
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| Mercuryμg Hg/l | 0.022 | ≤ 1 | 0.002 |
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| Nitritesmg NO2/l | 0.006 | ≤ 0.5 | 0.002 |
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| Nitratesmg NO3/l | 4.48 | ≤ 50 | 1.35 |
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Minerals
Minerals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Chloridemg/l | 17.4 | ≤ 250 | 17.4 |
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Metals
Metals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Aluminiumμg/l | 15.2 | ≤ 200 | 15.2 |
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| Antimonyμg/l | 0.16 | ≤ 5 | 0.16 |
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| Arsenicμg/l | 0.093 | ≤ 10 | 0.046 |
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| Cadmiumμg/l | 0.019 | ≤ 5 | 0.019 |
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| Chromiumμg/l | 0.68 | ≤ 50 | 0.68 |
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| Copperμg/l | 14.3 | ≤ 2,000 | 0.71 |
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| Ironμg/l | 9.48 | ≤ 200 | 9.48 |
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| Manganeseμg/l | 1.03 | ≤ 50 | 1.03 |
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| Leadμg/l | 0.19 | ≤ 10 | 0.009 |
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| Nickelμg/l | 2.15 | ≤ 20 | 2.15 |
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| Seleniumμg/l | 0.83 | ≤ 10 | 0.83 |
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| Sodiummg/l | 20.2 | ≤ 200 | 20.2 |
|---|
Chlorine by-products
Chlorine by-products| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Total Trichloroethyleneμg/l | 0 | ≤ 10 | 0 |
|---|
| Total Trihalomethanesμg/l | 27.7 | ≤ 100 | 1.39 |
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Pesticides
Pesticides| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Total pesticidesug/L | 0 | ≤ 0.5 | 0 |
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Perfluorinated chemicals
Perfluorinated chemicals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Total PFASug/L | Not reported | ≤ 0.1 | — |
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| PFAS 4ng/l | Not reported | No limit | — |
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| PFAS 21ng/l | Not reported | No limit | — |
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Other
Other| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Ammoniamg/l | 0.02 | No limit | 0.006 |
|---|
| Sulfatemg/l | 76.8 | No limit | 76.8 |
|---|
Data collected from the water company for your area. Quality ranges are based on WHO guidelines and the UK drinking water regulations.
3243 of 3245 tests within UK limits
