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Darlington · Darlington
Northumbrian Water
Water safety
Water safety| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Free Chlorinemg CL2/l | 0.44 | 0.2 – 1 | 0.009 ▲ |
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| Total Chlorinemg CL2/l | 0.52 | No limit | 0.1 |
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General
General| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Hardnessmg CaCO3/l | 115.7estimated | 80 – 459 | 115.7 |
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| pH | 7.8 | 6.5 – 9.5 | 7.8 |
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| TurbidityNTU | 0.27 | ≤ 4 | 0.027 |
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| ColorColor Units | 0.93 | ≤ 15 | 0.93 |
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| ConductivityμS / cm | 268.9 | ≤ 2,500 | 268.9 |
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| TDSmg/l | 172.1estimated | 0 – 1,199 | 172.1 |
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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 | 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 |
|---|
| Fluoridemg F/l | 0.11 | ≤ 1.5 | 0.033 |
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| Mercuryμg Hg/l | Not reported | ≤ 1 | — |
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| Nitritesmg NO2/l | 0.006 | ≤ 0.5 | 0.002 |
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| Nitratesmg NO3/l | 3.01 | ≤ 50 | 0.9 |
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Minerals
Minerals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Chloridemg/l | 10.6 | ≤ 250 | 10.6 |
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Metals
Metals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Aluminiumμg/l | 16.1 | ≤ 200 | 16.1 |
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| Antimonyμg/l | 0.16 | ≤ 5 | 0.16 |
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| Arsenicμg/l | 0.094 | ≤ 10 | 0.047 |
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| Cadmiumμg/l | 0.018 | ≤ 5 | 0.018 |
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| Chromiumμg/l | 0.68 | ≤ 50 | 0.68 |
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| Copperμg/l | 10.5 | ≤ 2,000 | 0.53 |
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| Ironμg/l | 10.1 | ≤ 200 | 10.1 |
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| Manganeseμg/l | 0.69 | ≤ 50 | 0.69 |
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| Leadμg/l | 0.35 | ≤ 10 | 0.017 |
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| Nickelμg/l | 1.24 | ≤ 20 | 1.24 |
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| Seleniumμg/l | 0.83 | ≤ 10 | 0.83 |
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| Sodiummg/l | 7.76 | ≤ 200 | 7.76 |
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Chlorine by-products
Chlorine by-products| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Total Trihalomethanesμg/l | 29.2 | ≤ 100 | 1.46 |
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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 | 60.4 | No limit | 60.4 |
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Data collected from the water company for your area. Quality ranges are based on WHO guidelines and the UK drinking water regulations.
1631 of 1631 tests within UK limits
