The City may also reject loads if the tracking form is not completed correctly or information is missing. To avoid this ensure these forms are filled out correctly.
If and when waste has come from a mine site and there is no specific address stated, the tenement number and shire locality must be listed along with the company and mine site name.
- Note: the responsibility of identifying the type of waste lies with the Controlled Waste Carrier and if quoting unseen works, it is highly recommended that some kind of disclaimer is quoted to the waste generator in the event the waste is not what the generator is claiming and is rejected.
What happens if my load is rejected?
In the interest of protecting both the treatment plant and quality of the effluent discharged, operators will not accept any load that fails the initial assessment completed or any load that is suspected to not meet the acceptance criteria will be rejected.
The carrier will be notified in writing and a non-confirming load form will be completed and sent to the DWER Controlled Waste Team.
What is our Discharge Criteria?
Initial SBWWTP Site Assessment:
| Analyte |
Units |
Limit |
| pH |
No units |
6-9 |
| Electrical Conductivity @ 25ºC |
µS/cm |
Less Than 5000 |
| Total Petroleum Hydrocarbons |
Pass/Fail |
Pass |
| Physical Characteristics |
Visual |
Operator Discretion |
Further testing completed by the CKB's Contracted NATA Accredited Laboratory:
| Analyte |
Units |
Limit |
| pH |
No units |
6-9 |
| Electrical Conductivity @ 25ºC |
µS/cm |
Less Than 5000 |
| Total Suspended Solids (TSS) |
mg/l (ppm) |
Less Than 1500 |
| Arsenic |
mg/l (ppm) |
Less Than 5 |
| Cadmium |
mg/l (ppm) |
Less Than 5 |
| Chromium |
mg/l (ppm) |
Less Than 10 |
| Copper |
mg/l (ppm) |
Less Than 5 |
| Lead |
mg/l (ppm) |
Less Than 10 |
| Molybdenum |
mg/l (ppm) |
Less Than 10 |
| Nickel |
mg/l (ppm) |
Less Than 10 |
| Selenium |
mg/l (ppm) |
Less Than 5 |
| Silver |
mg/l (ppm) |
Less Than 5 |
| Zinc |
mg/l (ppm) |
Less Than 10 |
| Iron |
mg/l (ppm) |
Less Than 100 |
| Total Cyanide |
mg/l (ppm) |
Less Than 3 |
| Ammonia as N |
mg/l (ppm) |
Less Than 50 if pH Less Than 8 |
| Less Than 200 if pH greater Than 8 |
| Oil and grease |
mg/l (ppm) |
Less Than 50 |
| Chemical Oxygen Demand (COD) |
mg/l (ppm) |
Less Than 3000 |
| Biochemical Oxygen Demand (BOD) |
mg/l (ppm) |
Less Than 3000 |
| Total Petroleum Hydrocarbons |
mg/l (ppm) |
Less Than 10 |
|
|
ug/l (ppb) |
Less Than 80 |
| Toluene |
ug/l (ppb) |
Less Than 1300 |
| Ethylbenzene |
ug/l (ppb) |
Less Than 1000 |
| Total Xylenes |
ug/l (ppb) |
Less Than 1400 |
Testing if Site would like to recommence discharge after the site has been rejected. Completed at Controlled Waste Contractors Cost at a NATA Accredited Laboratory:
| Analyte |
Units |
Limit |
| pH |
No units |
6-9 |
| Electrical Conductivity @ 25ºC |
µS/cm |
Less Than 5000 |
| Oil and grease |
mg/l (ppm) |
Less 50 |
| Chemical Oxygen demand (COD) |
mg/l (ppm) |
Less 3000
|