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Gravesham · Gravesham
Southern Water
Water safety
Water safety| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Free Chlorinemg CL2/l | 0.48 | 0.2 – 1 | 0.01 ▲ |
|---|
| Total Chlorinemg CL2/l | 0.53 | No limit | 0.11 |
|---|
General
General| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Hardnessmg CaCO3/l | 296.9 | 80 – 459 | 296.9 |
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| pH | 7.28 | 6.5 – 9.5 | 7.28 |
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| TurbidityNTU | 0.15 | ≤ 4 | 0.015 |
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| ColorColor Units | 3.01 | ≤ 15 | 3.01 |
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| OdorTON | 0 | ≤ 3 | 0 |
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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 | — |
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| Nitritesmg NO2/l | Not reported | ≤ 0.5 | — |
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| Nitratesmg NO3/l | 30.8 | ≤ 50 | 9.25 |
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Minerals
Minerals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Magnesiummg/l | 2.66 | No limit | 2.66 |
|---|
| Calciummg/l | 114.1 | No limit | 114.1 |
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Metals
Metals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Aluminiumμg/l | 12 | ≤ 200 | 12 |
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| Antimonyμg/l | 0.083 | ≤ 5 | 0.083 |
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| Arsenicμg/l | 0.22 | ≤ 10 | 0.11 |
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| Cadmiumμg/l | 0.029 | ≤ 5 | 0.029 |
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| Chromiumμg/l | 0.3 | ≤ 50 | 0.3 |
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| Copperμg/l | 88 | ≤ 2,000 | 4.4 |
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| Ironμg/l | 6.43 | ≤ 200 | 6.43 |
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| Manganeseμg/l | 0.78 | ≤ 50 | 0.78 |
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| Leadμg/l | 0.54 | ≤ 10 | 0.027 |
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| Nickelμg/l | 3.38 | ≤ 20 | 3.38 |
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| Seleniumμg/l | 0.64 | ≤ 10 | 0.64 |
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| Sodiummg/l | 14.3 | ≤ 200 | 14.3 |
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Chlorine by-products
Chlorine by-products| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Total Trichloroethyleneμg/l | 0.49 | ≤ 10 | 0.025 |
|---|
| Total Trihalomethanesμg/l | 11.7 | ≤ 100 | 0.58 |
|---|
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 | 0.009 | No limit | 0.003 |
|---|
Data collected from the water company for your area. Quality ranges are based on WHO guidelines and the UK drinking water regulations.
1978 of 1979 tests within UK limits
