My water supply
The samples we take are analysed in a UKAS accredited laboratory to ensure they comply with drinking water safety standards.
Schedule 1 Parameters
|
|
Units |
PCV |
Number of Samples |
Number of Samples contravening PCV |
% No. of samples contravening PCV |
Min |
Mean |
Max |
|
Colour |
mg/l Pt/Co |
20 |
2 |
0 |
0 |
<1.70 |
<1.70 |
2.00 |
|
Turbidity |
FTU |
4 |
2 |
0 |
0 |
0.10 |
0.11 |
0.12 |
|
Odour (quantitative) |
Dil Number |
0 |
2 |
0 |
0 |
0 |
0 |
0 |
|
Taste (quantitative) |
Dil Number |
0 |
2 |
0 |
0 |
0 |
0 |
0 |
|
Sodium |
mg/l |
200 |
1 |
0 |
0 |
13.70 |
13.70 |
13.70 |
|
Nitrate (as NO3) |
mg/l |
50 |
1 |
0 |
0 |
39.50 |
39.50 |
39.50 |
|
Nitrite (as NO2) |
mg/l |
0.1 |
2 |
0 |
0 |
<0.01 |
<0.01 |
0.01 |
|
Nitrate/Nitrite Ratio |
mg/l |
1 |
1 |
0 |
0 |
0.79 |
0.79 |
0.79 |
|
Aluminium |
ug/l |
200 |
1 |
0 |
0 |
6.00 |
6.00 |
6.00 |
|
Iron |
ug/l |
200 |
1 |
0 |
0 |
7.30 |
7.30 |
7.30 |
|
Manganese |
ug/l |
50 |
1 |
0 |
0 |
1.70 |
1.70 |
1.70 |
|
Copper (New Reg Limit) |
mg/l |
2 |
1 |
0 |
0 |
0.25 |
0.25 |
0.25 |
|
Fluoride |
mg/l |
1.5 |
1 |
0 |
0 |
0.12 |
0.12 |
0.12 |
|
Arsenic (New Regs Limit) |
ug/l |
10 |
1 |
0 |
0 |
1.00 |
1.00 |
1.00 |
|
Cadmium |
ug/l |
5 |
1 |
0 |
0 |
0.12 |
0.12 |
0.12 |
|
Chromium |
ug/l |
50 |
1 |
0 |
0 |
<0.70 |
<0.70 |
<0.70 |
|
Nickel (New Reg Limit) |
ug/l |
20 |
1 |
0 |
0 |
2.60 |
2.60 |
2.60 |
|
Lead (New Reg Limit) |
ug/l |
10 |
1 |
0 |
0 |
4.10 |
4.10 |
4.10 |
|
Antimony (New Reg Limit) |
ug/l |
5 |
1 |
0 |
0 |
0.20 |
0.20 |
0.20 |
|
Selenium |
ug/l |
10 |
1 |
0 |
0 |
0.80 |
0.80 |
0.80 |
|
Total PAH's (4 Det Total |
ug/l |
0.1 |
1 |
0 |
0 |
0 |
0 |
0 |
|
Escherichia coli |
No./100ml |
0 |
5 |
0 |
0 |
0 |
0 |
0 |
|
Intestinal Enterococci |
cfu/100ml |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
|
Boron (New Reg Limit) |
mg/l |
1 |
1 |
0 |
0 |
0.04 |
0.04 |
0.04 |
|
Benzo(a)pyrene |
ug/l |
0.01 |
1 |
0 |
0 |
<0.003 |
<0.003 |
<0.003 |
|
Trihalomethanes (total) |
ug/l |
100 |
1 |
0 |
0 |
5.86 |
5.86 |
5.86 |
|
Bromate |
ug/l |
10 |
1 |
0 |
0 |
0.80 |
0.80 |
0.80 |
Indicator parameters
|
|
Units |
PCV |
Number of samples |
Number of Samples contravening PCV |
% No. of samples contravening PCV |
Minimum |
Mean |
Maximum |
|
pH (New Reg Limit) Env |
|
- |
2 |
0 |
0 |
7.40 |
7.40 |
7.40 |
|
Sulphate (as SO4) |
mg/l |
250 |
1 |
0 |
0 |
44.50 |
44.50 |
44.50 |
|
Ammonium (as NH4) |
mg/l |
0.5 |
2 |
0 |
0 |
<0.03 |
<0.03 |
<0.03 |
|
Total coliforms |
No./100ml |
0 |
5 |
0 |
0 |
0 |
0 |
0 |
|
Clostridium perfringens |
No./100ml |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
|
3 day count,22 deg C |
cfu/ml |
50 |
2 |
0 |
0 |
0 |
0 |
0 |
|
Free chlorine |
mg/l |
- |
5 |
0 |
0 |
0.06 |
0.07 |
0.10 |
|
Conductivity |
uS/cm |
2500 |
2 |
0 |
0 |
652.00 |
679.50 |
707.00 |
|
Chloride |
mg/l |
250 |
1 |
0 |
0 |
41.00 |
41.00 |
41.00 |
* All of the samples collected from this zone in 2022 complied with the Water Supply (Water Quality) (Amendment) Regulations 2016.
Water hardness
| Average of Mg | Average of Ca | mg/l or ppm CaCO3 | Degrees Clark (*0.07) | Degrees French (*0.10) | Degrees German (*0.056) |
| 3.20 | 125.00 | 325.3 | 22.8 | 32.5 | 18.2 |
Water quality terms
Find out what the technical terms used in the water quality reports mean.