We charge you a flat fee for the liquid waste separator (grease separator) of $10.32 per quarter for each of your grease separators. If pre-treatment is not maintained, a higher fee of $13,292/kL will apply for low-risk BSB foods and BSB high-resistant foods. Go to our fees page to learn more. For the discharge of industrial wastewater, you need our written permission. If you escape without our permission, we may cut off the flow service. We can also separate or limit your water service. Cleanawater can help you apply for the Sydney Water Trade Waste Agreement. We have over 20 years of experience in wastewater treatment in Australia. .