Water Register
Sample taken between 01/01/2008 and 31/12/2008 inclusive
Regulation Zone = Turret B
Determinand
No. of
PCV
Units of
Results Failing
Min
Mean
Max
Results
Measure
PCV (%)
1,2 Dichloroethane
8 3
µg/l
0
< 0.1
<0.175
<0.3
Aldrin
8 0.03
µg/l
0
< 0.008
<0.008
<0.008
Aluminium
36 200
µgAl/l
0
24
38.833
77
Ammonium
36 0.5
mgNH4/l
0
< 0.05
<0.05
<0.05
Antimony
8 5
µgSb/l
0
0.03
0.044
0.06
Arsenic
8 10
µgAs/l
0
< 0.1
0.162
0.3
Benzene
8 1
µg/l
0
< 0.03
<0.049
<0.08
Benzo (a) pyrene
8 0.01
µg/l
0
< 0.002
0.002
0.002
Boron
8 1
mgB/l
0
< 0.023
<0.023
<0.023
Bromate
8 10
µgBrO3/l
0
< 1.3
<1.3
<1.3
Cadmium
8 5
µgCd/l
0
< 0.02
0.021
0.03
Chloride
8 250
mgCl/l
0
3.3
3.8
4.3
Chromium
8 50
µgCr/l
0
< 0.5
<0.5
<0.5
Clostridium perfringens (incl.
36 0
CFU in
0
0
0
0
spores)
100ml
Coliform bacteria
85 0
CFU in
1.176
0
0.012
1
100ml
Colony count at 22°C
36  
cfu/ml
0
0
9.833
116
Colony count at 37°C
36  
cfu/ml
0
0
4.639
54
Colour
36 20
mg/l Pt/Co
0
< 2
2.056
3
Conductivity
36 2500
µS/cm at
0
39
63.972
73
20°C
Copper
8 2
mgCu/l
0
< 0.001
0.004
0.016
Cyanide
8 50
µg/l
0
< 0.8
0.812
0.9
Cypermethrin
8 0.1
µg/l
0
< 0.011
<0.011
<0.011
Diazinon
8 0.1
µg/l
0
< 0.01
<0.01
<0.01
Dieldrin
8 0.03
µg/l
0
< 0.006
<0.006
<0.006
E. coli
85 0
CFU in
0
0
0
0
100ml
Enterococci
8 0
CFU in
0
0
0
0
100ml
Flumethrin
8  
µg/l
0
< 0.019
<0.019
<0.019
Fluoride
8 1.5
mgF/l
0
< 0.013
0.017
0.03
Free chlorine
85  
mg/l
0
0.01
0.173
0.53
Heptachlor
8 0.03
µg/l
0
< 0.006
<0.006
<0.006
Heptachlor epoxide
8  
µg/l
0
< 0.011
<0.011
<0.011
Hydrogen ion
36 6.5 to 9.5
pH value
0
7.5
8.033
8.9
Iron
36 200
µgFe/l
0
< 7
20.472
151
Lead
8 25
µgPb/l
0
< 0.2
0.325
0.9
Manganese
36 50
µgMn/l
0
< 1
4.336
31.1
Mercury
8 1
µgHg/l
0
< 0.03
<0.03
<0.03
Nickel
8 20
µgNi/l
0
< 0.4
0.4
0.4
Nitrate
8 50
mgNO3/l
0
0.5
0.612
0.8
Nitrite
8 0.5
mgNO2/l
0
< 0.01
0.01
0.014
PAH - total
8 0.1
µg/l
0
< 0.013
0.014
0.024
Permethrin total
8 0.1
µg/l
0
< 0.004
<0.004
<0.004
Pesticides: Total
9 0.5
µg/l
0
0
0
0
Propetamphos
8 0.1
µg/l
0
< 0.008
<0.008
<0.008
Quantitative odour
34 3
Dilution
0
0
0
0
number
Quantitative odour
2 3
 
0
0
0
0
Quantitative taste
34 3
Dilution
0
0
0
0
number
Quantitative taste
2 3
 
0
0
0
0
Selenium
8 10
µgSe/l
0
< 0.2
<0.2
<0.2
Sodium
8 200
mgNa/l
0
2.4
2.525
2.6
Sulphate
8 250
mgSO4/l
0
11.9
12.85
15.1
THM: Total
8 100
µg/l
0
15.6
22.038
30.9
TON ratio
8  
 
0
0.01
0.018
0.02
Tetra & Trichloroethene
8 10
µg/l
0
< 0.4
<0.475
<0.6
Tetrachloromethane
8 3
µg/l
0
< 0.1
<0.175
<0.3
Total chlorine
85  
mg/l
0
0.06
0.229
0.72
Total organic carbon
8  
mgC/l
0
0.8
1.05
1.3
Turbidity
36 4
NTU
0
< 0.25
0.259
0.59
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