OH3 n= 48 WRS TB n= 7 TB1b n= 8 TB1f n= 6 TB1a n= 9 Min Median Max Min Median Max Min Median Max Min Median Max Min Median Max Alkalinity - Total (g/m3 as CaCO3) 7.7 13.8 24 6.5 13 13.5 7.3 10.45 32 13.5 16 28 11.5 15.2 27 Aluminium-Dissolved(g/m3) 0.007 0.018 0.023 0.012 0.0175 0.05 0.013 0.019 0.021 0.011 0.026 0.042 Antimony-Dissolved(g/m3) 0.0002 0.0002 0.0007 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 Arsenic-Dissolved(g/m3) 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 Barium-Dissolved(g/m3) 0.045 0.046 0.05 0.029 0.031 0.033 0.035 0.036 0.037 0.029 0.0305 0.032 Bicarbonate (g/m3 at 25°C) 9.4 16.8 29 7.9 15.8 16.4 8.9 12.7 38 16.4 19.5 34 14 18.5 33 Boron-Dissolved(g/m3) 0.01 0.012 0.012 0.009 0.012 0.013 0.012 0.012 0.013 0.011 0.012 0.012 Cadmium-Dissolved(g/m3) 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00009 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 Calcium-Dissolved(g/m3) 2.6 2.95 28 0.91 1.13 2.6 2.1 5.95 25 2.5 2.8 21 3 3.7 20 Carbonate (g/m3 at 25°C) 1 1 1.1 Chloride(g/m3) 9 12 14 8 10 28 6 12 16 7 10.5 22 9 11 14.7 Chromium-Dissolved(g/m3) 0.0005 0.0005 0.0007 0.0005 0.0005 0.0006 0.0005 0.0005 0.0007 0.0005 0.0005 0.0009 Chromium-Hexavalent(g/m3) 0.001 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 Cobalt-Dissolved(g/m3) 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0003 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 Copper-Dissolved(g/m3) 0.0005 0.0005 0.0011 0.0005 0.0005 0.0006 0.0005 0.0005 0.0016 0.0005 0.0005 0.0016 0.0005 0.0005 0.0013 Cyanide-Total(g/m3) 0.001 0.002 0.002 Electrical Conductivity (EC) (mS/m) 7.9 8.45 25.3 6.7 7.2 11.8 8 11.7 21.7 7.9 8.65 20.3 8.5 10 19.9 Fluoride (g/m3) 0.05 0.05 0.05 Hardness-Total(g/m3 as CaCO3) 12.2 15.05 83 5.4 5.95 14.1 10.3 33.5 85 10.8 12.15 73 12.9 18.9 71 Iron-Dissolved(g/m3) 0.03 0.1 0.21 0.02 0.06 0.08 0.02 0.03 0.95 0.02 0.285 0.3 0.02 0.25 0.53 Lead-Dissolved(g/m3) 0.0001 0.0001 0.00016 0.0001 0.0001 0.0001 0.0001 0.0001 0.00011 0.0001 0.0001 0.0001 0.0001 0.0001 0.00021 Magnesium-Dissolved(g/m3) 1.4 1.86 4.3 0.7 0.81 1.85 1.25 2.7 8.5 1.12 1.305 5.1 1.34 1.95 4.9 Manganese-Dissolved(g/m3) 0.0016 0.01005 0.087 0.001 0.0076 0.0178 0.0005 0.047 0.162 0.0006 0.095 0.115 0.0129 0.064 0.14 Mercury-Dissolved(g/m3) 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 Molybdenum-Dissolved(g/m3) 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 0.0002 Nickel-Dissolved(g/m3) 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.00065 0.0037 0.0005 0.0005 0.0017 0.0005 0.0005 0.0023 Nitrate-N(g/m3) 0.1 0.5 1.67 0.064 0.089 0.81 0.057 0.1735 0.35 0.046 0.0975 0.21 0.074 0.135 0.4 Nitrate-N + Nitrite-N(g/m3) 0.1 0.51 1.68 0.065 0.095 0.82 0.057 0.2745 0.93 0.047 0.117 0.27 0.076 0.148 0.4 Nitrite-N(g/m3) 0.1 0.1 0.1 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 Nitrogen-Total Ammoniacal(g/m3) 0.01 0.01 0.23 0.01 0.01 0.01 0.01 0.011 0.054 0.015 0.049 0.069 0.015 0.032 0.074 pH(pH units) 6.6 7.2 8.7 6.8 7 7.3 5.7 6.9 7.7 6.7 7 7.5 6.5 7 7.6 Phosphorus-Total (g/m3) 0.004 0.012 0.47 0.034 0.0435 0.053 0.04 0.0435 0.047 Potassium-Dissolved(g/m3) 1.75 2 5.3 2 2.9 3.1 2.5 2.55 2.9 2.4 2.7 2.8 2.4 2.8 2.8 Reactive Phosphorus-Dissolved(g/m3) 0.004 0.004 0.034 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 Selenium-Dissolved(g/m3) 0.0002 0.0002 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 Silica-Reactive(g/m3 as SiO2) 16.2 25 33 Silver-Dissolved(g/m3) 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 0.0001 Sodium-Dissolved(g/m3) 8 9.2 10.8 9.4 9.9 17.9 6.6 10.1 11.1 6.9 9.9 10.3 6.9 9.7 10.4 Strontium-Dissolved(g/m3) 0.0103 0.0139 0.0142 0.02 0.0245 0.029 0.0156 0.0167 0.0178 0.0158 0.01735 0.0189 Sulphate(g/m3) 3.4 5 44 5 5 7 6 15.5 61 5 6.5 42 5 8 46 Thallium-Dissolved(g/m3) 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 Tin-Dissolved(g/m3) 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 Total Kjeldahl Nitrogen (TKN)(g/m3) 0.1 0.15 1.19 0.1 0.1 0.28 0.1 0.205 0.47 0.11 0.115 0.12 0.12 0.235 0.42 Total Suspended Solids(g/m3) 3 3 197 3 3 10 3 6 64 3 3 3 3 12 53 Uranium-Dissolved(g/m3) 0.00002 0.00002 0.00002 0.00002 0.00002 0.00002 0.00002 0.00002 0.00002 0.00002 0.00002 0.00002 Weak Acid Dissociable (WAD) Cyanide(g/m3) 0.001 0.002 0.002 0.002 0.002 0.003 0.001 0.0015 0.002 0.002 0.002 0.002 0.001 0.0015 0.002 Zinc-Dissolved(g/m3) 0.001 0.0019 0.0081 0.0011 0.0014 0.0022 0.001 0.00225 0.0073 0.001 0.00115 0.0019 0.001 0.0013 0.0067 Notes: TB1e - no data available Blank cells indicate parameter not tested Sample number indicates max sample size for individual parameters - Not all parameters tested during each sample round Parameter 21/01/2021 Table E.7 Summary of NRS surface water quality 2017-2019 Water Quality Sampling
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