Controlled Waste Tanker Discharges

Controlled Waste Tanker Discharges

The South Boulder Wastewater Treatment Plant is licensed to accept K210 septage waste.
Current Rates and Charges
To see a list of the current rates and charges related to Tankered Waste please Click Here.

The City of Kalgoorlie - Boulder has a set border in which charges for Tankered Waste is determined. Please Click Here for a map of the border for Inside and Outside fees and charges.
Opening Hours
These are the operational hours for the South Boulder Wastewater Treatment Plant:
Day Hours Open  
Monday 7am - 12 pm 1pm - 4pm
Tuesday 7am - 12pm CLOSED
Wednesday 7am - 12pm 1pm - 4pm
Thursday 7am - 12pm 1pm - 4pm
Friday  7am - 12pm 1pm - 4pm

Note - For disposals outside the above hours please contact the Water Services Team at least One Business day prior to your intended unloading date. 
Additional Fees and Charges apply. Click Here to see a list of the Fees and Charges.

The Wastewater Team reserves the right to change the operational hours of the Treatment Plant.
Controlled Waste Tracking Forms (CWTF)
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. 

If a load is rejected:
  • A sample will be taken of the load that has been rejected and will be sent to a NATA accredited approved lab at the City’s expense
  • The results will be forwarded to the Controlled Waste Carrier. Note: any load that has failed the initial on site test may not be sent away for analysis. If requested a written explanation via email of why it was rejected may be supplied
  • If the results from the rejected load did meet the acceptance criteria the carrier may be reimbursed the difference in cost between disposal from the SBWWTP and the alternate disposal site
  • If the results from the rejected load did not meet the acceptance criteria any future loads from that site will only be accepted if results from NATA accredited lab confirm it now meets the acceptance criteria. See: What is our dicharge criteria?
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