Sustainability Report 2007/08Water quality - parameters and reporting levels
| Parameter | Guideline Basis |
Units
|
Reporting Level
|
|---|---|---|---|
| Microbiological - routine | |||
| E.Coli | ADWG 2004 |
organisms/100mL
|
1
|
| Physical - routine | |||
| Colour | ADWG 2004 |
True colour units (HU)
|
15
|
| Turbidity | ADWG 2004 |
Nephelometric turbidity units (NTU)
|
5
|
| pH | ADWG 2004 |
pH units
|
6.5 to 8.5
|
| Chemical - routine | |||
| Aluminium | ADWG 2004 |
milligrams/litre - mg/L
|
0.2
|
| Iron | ADWG 2004 |
mg/L
|
0.3
|
| Manganese | ADWG 2004 |
mg/L
|
0.1
|
| Fluoride | Health Act |
mg/L
|
0.7 - 1.2
|
| Chemical - routine less frequent | |||
| Arsenic | ADWG 2004 |
milligrams/litre - mg/L
|
0.007
|
| Cadmium | ADWG 2004 |
mg/L
|
0.002
|
| Chromium | ADWG 2004 |
mg/L
|
0.05
|
| Copper | ADWG 2004 |
mg/L
|
1
|
| Cyanide | ADWG 2004 |
mg/L
|
0.08
|
| Lead | ADWG 2004 |
mg/L
|
0.01
|
| Mercury | ADWG 2004 |
mg/L
|
0.001
|
| Selenium | ADWG 2004 |
mg/L
|
0.01
|
| Zinc | ADWG 2004 |
mg/L
|
3
|
| Chloride | ADWG 2004 |
mg/L
|
250
|
| Hardness | ADWG 2004 |
mg/L
|
200
|
| Nitrate (as N) | ADWG 2004 |
mg/L
|
50
|
| Sodium | ADWG 2004 |
mg/L
|
180
|
| Sulphate | ADWG 2004 |
mg/L
|
250
|
| Total alkalinity | * |
mg/L
|
*
|
| Calcium | * |
mg/L
|
*
|
| Magnesium | * |
mg/L
|
*
|
| Silica | * |
mg/L
|
*
|
| Total organic carbon | * |
mg/L
|
*
|
| Total phosphorus | * |
mg/L
|
*
|
| Total solids | ADWG 2004 |
mg/L
|
500
|
| Radiological | |||
| Radioactivity - alpha | ADWG 2004 |
Becquerel/litre
|
0.5
|
| Radioactivity - beta | ADWG 2004 |
Becquerel/litre
|
0.5
|
| Pesticides | |||
| Aldrin | ADWG 2004 |
milligrams/litre - mg/L
|
0.0003
|
| Atrazine | ADWG 2004 |
mg/L
|
0.04
|
| Dieldrin | ADWG 2004 |
mg/L
|
0.0003
|
| Chlordane | ADWG 2004 |
mg/L
|
0.001
|
| DDT | ADWG 2004 |
mg/L
|
0.02
|
| Heptachlor | ADWG 2004 |
mg/L
|
0.0003
|
| Heptachlor epoxide | ADWG 2004 |
mg/L
|
0.0003
|
| Lindane | ADWG 2004 |
mg/L
|
0.02
|
| 2,4-D | ADWG 2004 |
mg/L
|
0.03
|
| Industrial chemicals | |||
| Carbon tetrachloride | ADWG 2004 |
milligrams/litre - mg/L
|
0.003
|
| Tetra chloroethene | ADWG 2004 |
mg/L
|
0.05
|
| 1,1 Dichloroethene | ADWG 2004 |
mg/L
|
0.03
|
| 1,2-Dichloroethene | ADWG 2004 |
mg/L
|
0.06
|
| 1,2-Dichloroethane | ADWG 2004 |
mg/L
|
0.003
|
| Benzene | ADWG 2004 |
mg/L
|
0.001
|
| Polynuclear aromatic hydrocarbons (PAH's) | |||
| Benzo-a-pyrene | ADWG 2004 |
milligrams/litre - mg/L
|
0.00001
|
| Byproducts of disinfection | |||
| Pentachlorophenol | * |
milligrams/litre - mg/L
|
0.002
|
| 2,4,6-Trichlorophenol | ADWG 2004 |
mg/L
|
0.02
|
| Trihalomethanes (THM's) Total | |||
| ADWG 2004 |
milligrams/litre - mg/L
|
0.25
|
|
| Chloroacetic acids No limit set | |||
| Chloroacetic acid | ADWG 2004 |
milligrams/litre - mg/L
|
0.15
|
| Dichloroacetic acid | ADWG 2004 |
mg/L
|
0.1
|
| Trichloroacetic acid | ADWG 2004 |
mg/L
|
0.1
|
* Items marked with an asterisk have not had a reporting level set but are monitored for operational purposes.
- ADWG 2004 - National Health and Medical Research Council/Australian Water Resources Council 2004: Guidelines for Drinking Water Quality in Australia
- milligrams/litre = mg/L or parts per million
- micrograms/litre = μg/L or parts per thousand million (billion)