Parameter Min Average Max Units Regulatory standard Number of samples % failed
2,4,5-T <0.0100 <0.0106 <0.0148 µg/l 0.1 56 0.00
2,4-D <0.0100 <0.0100 <0.0100 µg/l 0.1 57 0.00
2,4-DB <0.0100 <0.0104 <0.0135 µg/l 0.1 57 0.00
Aldrin <0.0020 <0.0020 <0.0030 µg/l 0.03 70 0.00
Aluminium <3.39 <22.2 71.7 µg Al/l 200 37 0.00
Ammonium (ammonia and ammonium ions) <0.0231 <0.0292 <0.0328 mg NH4/l 0.5 35 0.00
Antimony 0.100 0.126 0.160 µg Sb/l 5 7 0.00
Arsenic 0.160 0.204 0.250 µg As/l 10 7 0.00
Asulam <0.0100 <0.0100 <0.0100 µg/l 0.1 28 0.00
Atrazine <0.0100 <0.0100 <0.0100 µg/l 0.1 1 0.00
Benzene <0.0311 <0.0327 <0.0349 µg/l 1 53 0.00
Benzo(a)pyrene <0.0010 <0.0054 0.0300 µg/l 0.01 8 12.50
Boron 0.0021 0.0056 0.0153 mg B/l 1 56 0.00
Bromate 0.930 2.07 3.05 µg BrO3/l 10 8 0.00
Bromoxynil <0.0100 <0.0100 <0.0100 µg/l 0.1 32 0.00
Cadmium <0.0200 <0.0271 <0.0400 µg Cd/l 5 7 0.00
Calcium 3.70 5.83 8.33 mg Ca/l 37 0.00
Carbendazim <0.0100 <0.0100 <0.0100 µg/l 0.1 60 0.00
Carbofuran <0.0100 <0.0100 <0.0100 µg/l 0.1 23 0.00
Chloride 5.04 9.19 24.5 mg Cl/l 250 52 0.00
Chromium <0.160 <0.179 0.210 µg Cr/l 50 7 0.00
Residual chlorine - Total 0.25 0.62 0.96 mg/l 96 0.00
Residual chlorine - Free 0.21 0.58 0.92 mg/l 96 0.00
Chlortoluron <0.0100 <0.0100 <0.0100 µg/l 0.1 57 0.00
Colony Counts after 2 days at 37 deg C 0 0 1 number/1ml 36 0.00
Colony counts after 3 days at 22 deg C 0 1 10 number/1ml 36 0.00
Coliform bacteria 0 0 0 number/100ml 0 96 0.00
Colour 0.420 1.01 1.84 mg/l Pt/Co scale 20 38 0.00
Conductivity 69.0 93.4 106 uS/cm at 20oC 2500 20 0.00
Copper 0.0018 0.0139 0.0453 mg Cu/l 2 7 0.00
Clostridium perfringens (including spores) 0 0 0 number/100ml 0 36 0.00
Clopyralid <0.0100 <0.0100 <0.0100 µg/l 0.1 1 0.00
Cyanide <0.540 <0.790 1.86 µg CN/l 50 56 0.00
Cyanazine <0.0100 <0.0100 <0.0100 µg/l 0.1 57 0.00
1,2-dichloroethane <0.0753 <0.0870 <0.103 µg/l 3 53 0.00
Diazinon <0.0100 <0.0100 <0.0100 µg/l 0.1 1 0.00
Dicamba <0.0100 <0.0100 <0.0100 µg/l 0.1 58 0.00
Dieldrin <0.0020 <0.0030 <0.0030 µg/l 0.03 70 0.00
Dichlorprop <0.0100 <0.0100 <0.0100 µg/l 0.1 56 0.00
Diuron <0.0100 <0.0100 <0.0100 µg/l 0.1 57 0.00
E.coli 0 0 0 number/100ml 0 96 0.00
Ethofumesate <0.0100 <0.0114 <0.0161 µg/l 0.1 56 0.00
Enterococci 0 0 0 number/100ml 0 8 0.00
Fluoride <0.0300 <0.0300 0.0300 mg F/l 1.5 7 0.00
Fluroxypyr <0.0100 <0.0100 <0.0100 µg/l 0.1 33 0.00
Glyphosate <0.0060 <0.0069 <0.0140 µg/l 0.1 31 0.00
Total hardness 7 9 10 mg Ca/l 37 0.00
Heptachlor epoxide <0.0020 <0.0030 <0.0030 µg/l 0.03 73 0.00
Heptachlor <0.0010 <0.0010 <0.0020 µg/l 0.03 70 0.00
Ioxynil <0.0100 <0.0106 <0.0145 µg/l 0.1 57 0.00
Iron <1.30 <6.87 41.2 µg Fe/l 200 37 0.00
Isoproturon <0.0100 <0.0100 <0.0100 µg/l 0.1 57 0.00
Lead <0.120 <0.539 1.17 µg Pb/l 25 7 0.00
Lindane <0.0100 <0.0100 <0.0100 µg/l 0.1 57 0.00
Linuron <0.0100 <0.0100 <0.0100 µg/l 0.1 57 0.00
Magnesium 1.00 1.71 2.10 mg Mg/l 37 0.00
Manganese 0.480 0.930 2.30 µg Mn/l 50 37 0.00
MCPA <0.0100 <0.0100 <0.0100 µg/l 0.1 57 0.00
MCPB <0.0100 <0.0102 <0.0119 µg/l 0.1 32 0.00
Mecoprop <0.0100 <0.0100 <0.0100 µg/l 0.1 57 0.00
Mercury <0.0100 <0.0187 <0.127 µg Hg/l 1 55 0.00
Nickel <0.500 <1.11 1.40 µg Ni/l 20 7 0.00
Nitrite <0.0033 <0.0046 <0.0053 mg NO2/l 0.5 35 0.00
Nitrate 0.886 1.35 1.99 mg NO3/l 50 35 0.00
(Nitrate)/50 plus (nitrite)/3 0.0170 0.0269 0.0400 mg/l 1 35 0.00
Odour (quantitative) 0 0 0 dilution number at 25oC 0 18 0.00
Total organic carbon 0.800 1.17 2.31 mg C/l 57 0.00
Polycyclic aromatic hydrocarbons (sum of 4 PAHs) 0.0000 0.0104 0.0830 µg/l 0.1 8 0.00
Pesticides - Total 0.0000 0.0000 0.0000 µg/l 0.5 1 0.00
Hydrogen ion (pH) 7.01 7.35 8.20 pH value 9.5 72 0.00
Propetamphos <0.0100 <0.0100 <0.0100 µg/l 0.1 49 0.00
Propyzamide <0.0100 <0.0100 <0.0100 µg/l 0.1 19 0.00
Radioactivity gross alpha 0.0120 0.0254 0.0530 Bq/l 0.1 18 0.00
Radioactivity gross beta 0.0940 0.142 0.207 Bq/l 1 18 0.00
Selenium <0.210 <0.401 0.570 µg Se/l 10 7 0.00
Simazine <0.0100 <0.0100 <0.0100 µg/l 0.1 1 0.00
Sodium 4.69 10.5 13.7 mg Na/l 200 37 0.00
Sulphate 6.59 14.3 92.6 mg SO4/l 250 56 0.00
Taste (quantitative) 0 0 0 dilution number at 25oC 0 18 0.00
Tetrachloromethane <0.0196 <0.0333 0.0500 µg/l 3 9 0.00
Trihalomethanes - Total 20.2 28.0 37.8 µg/l 100 9 0.00
Triclopyr <0.0100 <0.0107 <0.0155 µg/l 0.1 56 0.00
Triforine <0.0100 <0.0100 <0.0100 µg/l 0.1 56 0.00
Tetrachloroethene and trichloroethene 0.0000 0.0033 0.0300 µg/l 10 9 0.00
Turbidity <0.04 <0.12 0.34 NTU 4 38 0.00
The report details drinking water quality for the last 12 months. The information is updated weekly and complies with regulation 35 (2) of the Water Supply (Water Quality) Regulations 2000.