Wellers Hill Reservoirs
Wellers Hill Reservoirs - BrisbaneMay 2025 - Site Performance |
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| Parameter | Unit of measure | ADWG criteria | Number of samples | Minimum | Average | Maximum | Number that passed | Number that failed | |
| Health Parameters (note that copper and manganese have both health and aesthetic guideline values) | |||||||||
| Chemicals | |||||||||
| Fluoride | mg/L | <= 1.5 | 4 | 0.07 | 0.18 | 0.37 | 4 | 0 | |
| Free Chlorine - Field | mg/L | <= 5 | 4 | <0.1 | <0.1 | <0.1 | 4 | 0 | |
| Total Chlorine - Field | mg/L | <= 5 | 4 | 2.5 | 2.8 | 3.0 | 4 | 0 | |
| Disinfection by product | |||||||||
| Chlorate | mg/L | <= 0.8 | 4 | 0.042 | 0.090 | 0.190 | 4 | 0 | |
| NDMA | µg/L | <= 0.1 | 1 | <0.003 | <0.003 | <0.003 | 1 | 0 | |
| Haloacetic acids | |||||||||
| Chloroacetic acid | µg/L | <= 150 | 1 | <1.0 | <1.0 | <1.0 | 1 | 0 | |
| Dichloroacetic acid | µg/L | <= 100 | 1 | 5.0 | 5.0 | 5.0 | 1 | 0 | |
| Trichloroacetic acid | µg/L | <= 100 | 1 | 10.0 | 10.0 | 10.0 | 1 | 0 | |
| Metals | |||||||||
| Cadmium | mg/L | <= 0.002 | 1 | <0.0001 | <0.0001 | <0.0001 | 1 | 0 | |
| Chromium | mg/L | <= 0.05 | 1 | <0.001 | <0.001 | <0.001 | 1 | 0 | |
| Copper | mg/L | <= 2 | 1 | <0.001 | <0.001 | <0.001 | 1 | 0 | |
| Lead | mg/L | <= 0.01 | 1 | <0.001 | <0.001 | <0.001 | 1 | 0 | |
| Manganese | mg/L | <= 0.5 | 4 | 0.002 | 0.002 | 0.003 | 4 | 0 | |
| Nickel | mg/L | <= 0.02 | 1 | <0.001 | <0.001 | <0.001 | 1 | 0 | |
| Microbiological | |||||||||
| E.coli MF | CFU/100mL | < 1 | 4 | <1.0 | <1.0 | <1.0 | 4 | 0 | |
| Nutrients | |||||||||
| Nitrate | mg/L | <= 50 | 1 | 0.160 | 0.160 | 0.160 | 1 | 0 | |
| Nitrite | mg/L | <= 3 | 1 | <0.002 | <0.002 | <0.002 | 1 | 0 | |
| Trihalomethanes | |||||||||
| Trihalomethanes | µg/L | <= 250 | 1 | 130.0 | 130.0 | 130.0 | 1 | 0 | |
| Aesthetic Parameters | |||||||||
| Major Cations & Anions | |||||||||
| Chloride | mg/L | <= 250 | 1 | 71.0 | 71.0 | 71.0 | 1 | 0 | |
| Hardness | mg/L | <= 200 | 1 | 120.0 | 120.0 | 120.0 | 1 | 0 | |
| Sodium | mg/L | <= 180 | 1 | 40.0 | 40.0 | 40.0 | 1 | 0 | |
| Sulphate | mg/L | <= 250 | 1 | 42.0 | 42.0 | 42.0 | 1 | 0 | |
| Metals | |||||||||
| Aluminium | mg/L | <= 0.2 | 1 | 0.040 | 0.040 | 0.040 | 1 | 0 | |
| Copper | mg/L | <= 1 | 1 | <0.001 | <0.001 | <0.001 | 1 | 0 | |
| Iron | mg/L | <= 0.3 | 4 | <0.01 | <0.01 | 0.01 | 4 | 0 | |
| Manganese | mg/L | <= 0.1 | 4 | 0.002 | 0.002 | 0.003 | 4 | 0 | |
| Zinc | mg/L | <= 3 | 1 | <0.005 | <0.005 | <0.005 | 1 | 0 | |
| Physical Properties | |||||||||
| pH - Field | pH Unit | 6.5 - 8.5 | 4 | 7.9 | 8.0 | 8.0 | 4 | 0 | |
| Total Dissolved Solids | mg/L | <= 600 | 1 | 270.0 | 270.0 | 270.0 | 1 | 0 | |
| True Colour | HU | <= 15 | 4 | <1.0 | 1.0 | 2.0 | 4 | 0 | |
| Turbidity | NTU | <= 5 | 4 | 0.2 | 0.4 | 0.5 | 4 | 0 | |
| Other Parameters | |||||||||
| Major Cations & Anions | |||||||||
| Calcium | mg/L | N/A | 1 | 26.0 | 26.0 | 26.0 | N/A | N/A | |
| Magnesium | mg/L | N/A | 1 | 13.00 | 13.00 | 13.00 | N/A | N/A | |
| Potassium | mg/L | N/A | 1 | 3.0 | 3.0 | 3.0 | N/A | N/A | |
| Physical Properties | |||||||||
| Alkalinity Total | mg/L | N/A | 1 | 90.0 | 90.0 | 90.0 | N/A | N/A | |
| Conductivity - Field | µS/cm | N/A | 4 | 514.0 | 561.0 | 657.0 | N/A | N/A | |
| Temperature - Field | °C | N/A | 4 | 20.6 | 22.0 | 22.8 | N/A | N/A | |
Wellers Hill Reservoirs - Brisbane
May 2025 - Site Performance
Health Parameters (note that copper and manganese have both health and aesthetic guideline values)
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FluorideUnit of measure:mg/LADWG criteria:<= 1.5Number of samples:4Minimum:0.07Average:0.18Maximum:0.37Number that passed:4Number that failed:0
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Free Chlorine - FieldUnit of measure:mg/LADWG criteria:<= 5Number of samples:4Minimum:<0.1Average:<0.1Maximum:<0.1Number that passed:4Number that failed:0
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Total Chlorine - FieldUnit of measure:mg/LADWG criteria:<= 5Number of samples:4Minimum:2.5Average:2.8Maximum:3.0Number that passed:4Number that failed:0
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ChlorateUnit of measure:mg/LADWG criteria:<= 0.8Number of samples:4Minimum:0.042Average:0.090Maximum:0.190Number that passed:4Number that failed:0
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NDMAUnit of measure:µg/LADWG criteria:<= 0.1Number of samples:1Minimum:<0.003Average:<0.003Maximum:<0.003Number that passed:1Number that failed:0
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Chloroacetic acidUnit of measure:µg/LADWG criteria:<= 150Number of samples:1Minimum:<1.0Average:<1.0Maximum:<1.0Number that passed:1Number that failed:0
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Dichloroacetic acidUnit of measure:µg/LADWG criteria:<= 100Number of samples:1Minimum:5.0Average:5.0Maximum:5.0Number that passed:1Number that failed:0
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Trichloroacetic acidUnit of measure:µg/LADWG criteria:<= 100Number of samples:1Minimum:10.0Average:10.0Maximum:10.0Number that passed:1Number that failed:0
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CadmiumUnit of measure:mg/LADWG criteria:<= 0.002Number of samples:1Minimum:<0.0001Average:<0.0001Maximum:<0.0001Number that passed:1Number that failed:0
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ChromiumUnit of measure:mg/LADWG criteria:<= 0.05Number of samples:1Minimum:<0.001Average:<0.001Maximum:<0.001Number that passed:1Number that failed:0
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CopperUnit of measure:mg/LADWG criteria:<= 2Number of samples:1Minimum:<0.001Average:<0.001Maximum:<0.001Number that passed:1Number that failed:0
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LeadUnit of measure:mg/LADWG criteria:<= 0.01Number of samples:1Minimum:<0.001Average:<0.001Maximum:<0.001Number that passed:1Number that failed:0
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ManganeseUnit of measure:mg/LADWG criteria:<= 0.5Number of samples:4Minimum:0.002Average:0.002Maximum:0.003Number that passed:4Number that failed:0
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NickelUnit of measure:mg/LADWG criteria:<= 0.02Number of samples:1Minimum:<0.001Average:<0.001Maximum:<0.001Number that passed:1Number that failed:0
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E.coli MFUnit of measure:CFU/100mLADWG criteria:< 1Number of samples:4Minimum:<1.0Average:<1.0Maximum:<1.0Number that passed:4Number that failed:0
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NitrateUnit of measure:mg/LADWG criteria:<= 50Number of samples:1Minimum:0.160Average:0.160Maximum:0.160Number that passed:1Number that failed:0
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NitriteUnit of measure:mg/LADWG criteria:<= 3Number of samples:1Minimum:<0.002Average:<0.002Maximum:<0.002Number that passed:1Number that failed:0
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TrihalomethanesUnit of measure:µg/LADWG criteria:<= 250Number of samples:1Minimum:130.0Average:130.0Maximum:130.0Number that passed:1Number that failed:0
Aesthetic Parameters
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ChlorideUnit of measure:mg/LADWG criteria:<= 250Number of samples:1Minimum:71.0Average:71.0Maximum:71.0Number that passed:1Number that failed:0
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HardnessUnit of measure:mg/LADWG criteria:<= 200Number of samples:1Minimum:120.0Average:120.0Maximum:120.0Number that passed:1Number that failed:0
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SodiumUnit of measure:mg/LADWG criteria:<= 180Number of samples:1Minimum:40.0Average:40.0Maximum:40.0Number that passed:1Number that failed:0
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SulphateUnit of measure:mg/LADWG criteria:<= 250Number of samples:1Minimum:42.0Average:42.0Maximum:42.0Number that passed:1Number that failed:0
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AluminiumUnit of measure:mg/LADWG criteria:<= 0.2Number of samples:1Minimum:0.040Average:0.040Maximum:0.040Number that passed:1Number that failed:0
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CopperUnit of measure:mg/LADWG criteria:<= 1Number of samples:1Minimum:<0.001Average:<0.001Maximum:<0.001Number that passed:1Number that failed:0
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IronUnit of measure:mg/LADWG criteria:<= 0.3Number of samples:4Minimum:<0.01Average:<0.01Maximum:0.01Number that passed:4Number that failed:0
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ManganeseUnit of measure:mg/LADWG criteria:<= 0.1Number of samples:4Minimum:0.002Average:0.002Maximum:0.003Number that passed:4Number that failed:0
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ZincUnit of measure:mg/LADWG criteria:<= 3Number of samples:1Minimum:<0.005Average:<0.005Maximum:<0.005Number that passed:1Number that failed:0
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pH - FieldUnit of measure:pH UnitADWG criteria:6.5 - 8.5Number of samples:4Minimum:7.9Average:8.0Maximum:8.0Number that passed:4Number that failed:0
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Total Dissolved SolidsUnit of measure:mg/LADWG criteria:<= 600Number of samples:1Minimum:270.0Average:270.0Maximum:270.0Number that passed:1Number that failed:0
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True ColourUnit of measure:HUADWG criteria:<= 15Number of samples:4Minimum:<1.0Average:1.0Maximum:2.0Number that passed:4Number that failed:0
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TurbidityUnit of measure:NTUADWG criteria:<= 5Number of samples:4Minimum:0.2Average:0.4Maximum:0.5Number that passed:4Number that failed:0
Other Parameters
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CalciumUnit of measure:mg/LADWG criteria:N/ANumber of samples:1Minimum:26.0Average:26.0Maximum:26.0Number that passed:N/ANumber that failed:N/A
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MagnesiumUnit of measure:mg/LADWG criteria:N/ANumber of samples:1Minimum:13.00Average:13.00Maximum:13.00Number that passed:N/ANumber that failed:N/A
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PotassiumUnit of measure:mg/LADWG criteria:N/ANumber of samples:1Minimum:3.0Average:3.0Maximum:3.0Number that passed:N/ANumber that failed:N/A
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Alkalinity TotalUnit of measure:mg/LADWG criteria:N/ANumber of samples:1Minimum:90.0Average:90.0Maximum:90.0Number that passed:N/ANumber that failed:N/A
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Conductivity - FieldUnit of measure:µS/cmADWG criteria:N/ANumber of samples:4Minimum:514.0Average:561.0Maximum:657.0Number that passed:N/ANumber that failed:N/A
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Temperature - FieldUnit of measure:°CADWG criteria:N/ANumber of samples:4Minimum:20.6Average:22.0Maximum:22.8Number that passed:N/ANumber that failed:N/A