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 |
26 |
0 |
0 |
<1.70 |
<1.70 |
2.00 |
Turbidity |
FTU |
4 |
26 |
0 |
0 |
0.10 |
0.12 |
0.21 |
Odour (quantitative) |
Dil Number |
0 |
26 |
0 |
0 |
0 |
0 |
0 |
Taste (quantitative) |
Dil Number |
0 |
26 |
0 |
0 |
0 |
0 |
0 |
Sodium |
mg/l |
200 |
9 |
0 |
0 |
15.80 |
22.28 |
25.60 |
Nitrate (as NO3) |
mg/l |
50 |
9 |
0 |
0 |
23.20 |
33.27 |
43.40 |
Nitrite (as NO2) |
mg/l |
0.1 |
9 |
0 |
0 |
<0.01 |
<0.01 |
0.01 |
Nitrate/Nitrite Ratio |
mg/l |
1 |
9 |
0 |
0 |
0.46 |
0.67 |
0.87 |
Aluminium |
ug/l |
200 |
26 |
0 |
0 |
6.00 |
7.19 |
28.00 |
Iron |
ug/l |
200 |
26 |
0 |
0 |
4.40 |
7.28 |
11.70 |
Manganese |
ug/l |
50 |
26 |
0 |
0 |
1.70 |
1.70 |
1.70 |
Copper (New Reg Limit) |
mg/l |
2 |
9 |
0 |
0 |
0.01 |
0.10 |
0.38 |
Fluoride |
mg/l |
1.5 |
9 |
0 |
0 |
0.81 |
0.95 |
1.05 |
Arsenic (New Regs Limit) |
ug/l |
10 |
9 |
0 |
0 |
1.00 |
1.00 |
1.00 |
Cadmium |
ug/l |
5 |
9 |
0 |
0 |
0.12 |
0.16 |
0.25 |
Chromium |
ug/l |
50 |
9 |
0 |
0 |
<0.70 |
<0.70 |
<0.70 |
Nickel (New Reg Limit) |
ug/l |
20 |
9 |
0 |
0 |
<0.80 |
1.68 |
2.70 |
Lead (New Reg Limit) |
ug/l |
10 |
9 |
0 |
0 |
<0.90 |
1.03 |
2.10 |
Antimony (New Reg Limit) |
ug/l |
5 |
9 |
0 |
0 |
0.20 |
0.20 |
0.20 |
Selenium |
ug/l |
10 |
9 |
0 |
0 |
0.80 |
0.80 |
0.80 |
PAH |
ug/l |
0.1 |
9 |
0 |
0 |
0 |
0 |
0 |
Escherichia coli |
No./100ml |
0 |
56 |
0 |
0 |
0 |
0 |
0 |
Intestinal Enterococci |
cfu/100ml |
0 |
9 |
0 |
0 |
0 |
0 |
0 |
Boron (New Reg Limit) |
mg/l |
1 |
9 |
0 |
0 |
0.04 |
0.05 |
0.06 |
Benzo(a)pyrene |
ug/l |
0.01 |
9 |
0 |
0 |
<0.003 |
<0.003 |
<0.003 |
Trihalomethanes (total) |
ug/l |
100 |
9 |
0 |
0 |
0.00 |
14.92 |
62.10 |
Bromate |
ug/l |
10 |
9 |
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 |
|
- |
26 |
0 |
0 |
6.70 |
7.03 |
7.80 |
Sulphate (as SO4) |
mg/l |
250 |
9 |
0 |
0 |
36.40 |
44.61 |
51.50 |
Ammonium (as NH4) |
mg/l |
0.5 |
26 |
0 |
0 |
<0.03 |
<0.03 |
<0.03 |
Total coliforms |
No./100ml |
0 |
56 |
0 |
0 |
0 |
0 |
0 |
3 day count,22 deg C |
cfu/ml |
50 |
26 |
0 |
0 |
0 |
0 |
3 |
Free chlorine |
mg/l |
- |
56 |
0 |
0 |
0.03 |
0.29 |
0.49 |
Total chlorine |
mg/l |
- |
56 |
0 |
0 |
0.07 |
0.34 |
0.69 |
Conductivity |
uS/cm |
2500 |
26 |
0 |
0 |
347.00 |
450.69 |
580.00 |
Chloride |
mg/l |
250 |
9 |
0 |
0 |
31.00 |
42.89 |
49.00 |
*All of the samples collected from this zone in 2022 complied with the Water Supply (Water Quality) (Amendment) Regulations 2016. Supplies to this zone are fluoridated up to a level of 1.5mg/l.
Water hardness
Average of Ca | Average of Mg | mg/l or ppm CaCO3 | Degrees Clark (*0.07) | Degrees French (*0.10) | Degrees German (*0.056) |
56.39 | 7.57 | 172.0 | 12.0 | 17.2 | 9.6 |
Water quality terms
Find out what the technical terms used in the water quality reports mean.