← Back to summarySee all parameters
Colchester · Colchester
Anglian Water
Water safety
Water safety| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Free Chlorinemg CL2/l | 0.29 | 0.2 – 1 | 0.006 ▲ |
|---|
| Total Chlorinemg CL2/l | 0.53 | No limit | 0.11 |
|---|
General
General| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Hardnessmg CaCO3/l | 310.4estimated | 80 – 459 | 310.4 |
|---|
| pH | 7.54 | 6.5 – 9.5 | 7.54 |
|---|
| TurbidityNTU | 0.23 | ≤ 4 | 0.023 |
|---|
| ColorColor Units | 1.58 | ≤ 15 | 1.58 |
|---|
| ConductivityμS / cm | 506.9 | ≤ 2,500 | 506.9 |
|---|
| TDSmg/l | 324.4estimated | 0 – 1,199 | 324.4 |
|---|
| OdorTON | 0 | ≤ 3 | 0 |
|---|
Pathogens
Pathogens| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| ClostridiumUFC/100ml | 0 | ≤ 0 | 0 |
|---|
| eColiUFC/100ml | 0 | ≤ 0 | 0 |
|---|
| BacteriasNMP/100ml | 12 | ≤ 0 | 1.2 |
|---|
| EnterococcusUFC/100ml | 0 | ≤ 0 | 0 |
|---|
Chemical parameters
Chemical parameters| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Cyanide totalμg CN/l | 3.33 | ≤ 50 | 0.17 |
|---|
| Fluoridemg F/l | 0.5 | ≤ 1.5 | 0.15 |
|---|
| Mercuryμg Hg/l | 0.06 | ≤ 1 | 0.006 |
|---|
| Nitritesmg NO2/l | 0.038 | ≤ 0.5 | 0.015 |
|---|
| Nitratesmg NO3/l | 11.5 | ≤ 50 | 3.45 |
|---|
Minerals
Minerals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Chloridemg/l | 52.1 | ≤ 250 | 52.1 |
|---|
Metals
Metals| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Aluminiumμg/l | 12 | ≤ 200 | 12 |
|---|
| Antimonyμg/l | 0.34 | ≤ 5 | 0.34 |
|---|
| Arsenicμg/l | 0.37 | ≤ 10 | 0.18 |
|---|
| Cadmiumμg/l | 0.02 | ≤ 5 | 0.02 |
|---|
| Chromiumμg/l | 0.76 | ≤ 50 | 0.76 |
|---|
| Copperμg/l | 64.4 | ≤ 2,000 | 3.22 |
|---|
| Ironμg/l | 21.2 | ≤ 200 | 21.2 |
|---|
| Manganeseμg/l | 3.02 | ≤ 50 | 3.02 |
|---|
| Leadμg/l | 0.53 | ≤ 10 | 0.027 |
|---|
| Nickelμg/l | 3.72 | ≤ 20 | 3.72 |
|---|
| Seleniumμg/l | 1.23 | ≤ 10 | 1.23 |
|---|
| Sodiummg/l | 51.7 | ≤ 200 | 51.7 |
|---|
Chlorine by-products
Chlorine by-products| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Total Trichloroethyleneμg/l | 0 | ≤ 10 | 0 |
|---|
| Total Trihalomethanesμg/l | 36.8 | ≤ 100 | 1.84 |
|---|
Pesticides
Pesticides| Parameter | Unfiltered tap water | Allowed range | Filtered |
|---|
| Total pesticidesug/L | 0.005 | ≤ 0.5 | 0.005 |
|---|
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 | 0.15 | No limit | 0.045 |
|---|
| Sulfatemg/l | 53.9 | No limit | 53.9 |
|---|
Data collected from the water company for your area. Quality ranges are based on WHO guidelines and the UK drinking water regulations.
3138 of 3140 tests within UK limits
