Go To Search
How Do I
Liquid trade waste
Information for businesses
Guidelines have been established by the NSW Government regarding Liquid Trade Waste. Under the Liquid Trade Waste Regulation Guidelines, Singleton Council and businesses in Singleton have a number of responsibilities they are required to fulfil.

What is liquid trade waste?
Liquid trade waste is any discharge to the sewerage system other than domestic waste from a hand wash basin, shower, bath or toilet.

Liquid Trade Waste includes liquids from: 
  • Industrial premises;
  • Business/commercial premises (e.g. beautician, florist, hairdresser, hotel, motel, restaurant, butcher, service station, supermarket, dentist);
  • Community/public premises (including school, college, university, hospital, nursing home, craft club);
  • Trade activities (e.g. mobile carpet cleaner, graffiti removalists, mechanical workshops, car wash, wash bay);
  • Any commercial activities carried out at a residential premises;  and
  • Waste from saleyards, racecourses, stables and kennels not associated with domestic households.

Approval to discharge
Businesses or government agencies proposing to discharge liquid trade waste to Council sewer must have prior approval from Council as the regulator for sewerage and trade waste in this area.

For further information, read the fact sheet Protect our environment by managing your liquid trade waste.

Section 68 of the Local Government Act 1993 requires that all liquid trade waste discharges to a Council sewerage system must have an approval from Council. This applies to both new and existing trade waste dischargers.

A discharger who fails to submit an application form and obtain Council's approval or fails to comply with the conditions of approval may be prosecuted under section 120(1) of the Protection of the Environment Operations Act 1997. In addition, Council may issue a penalty notice under section 222 of that Act.

Classification A
 Involves low risk liquid trade waste discharges where:
  • The waste discharged is of a low volume and/or low strength; 
  • No pre-treatment is required, or there are prescribed standard non-complex pre-treatment devices available to treat the waste to a satisfactory level;
  • The waste poses a low risk to the sewerage system, the environment and public or worker health and safety;
  • Standard conditions may be used for the approval; and
  • The trade waste volume is up to 5 kL/d or 1000 kL/a, except in the case of commercial retail food preparation activities, where up to 16 kL/d is allowed.

However, where more than four Concurrence Classification A discharges are being generated from one premises or complex, such as a shopping arcade, small shopping complex, educational facility or hospital, the discharges must be treated as Concurrence Classification B.

Classification B
Dischargers are defined as:
  • All commercial retail activities (as listed Regulation Table 13, pg. 86); 
  • Any classification A activity (as listed Regulation Tables 8 & 9, pgs. 51 - 58) that exceeds the Classification A flow limit of 5 kL/d or 16 kL/d for specified liquid trade waste activities; 
  • Any Classification A activity that comprises more than four Concurrence Classification A discharges from a single premises or a complex. This requirement does not include activities shown on the exemption list (as listed Regulation Table 1, Appendix D, pg. 167);
  • The volume of waste discharged does not exceed 20 kL/d; and
  • Meet the guideline limits for acceptance (as listed Regulation Table 2, Appendix D, pg. 172) or meets the LWU’s guideline acceptance limits detailed in its Liquid Trade Waste Policy.

Classification C

Any activity which is in Classification A, Classification B or Classification S (Regulation 2.5, pg. 17) that exceeds a discharge volume of 20 kL/d, and any activity not nominated in the above classifications.

If you have any questions, please contact the Liquid Trade Waste Officer on 02 6578 7290.

Singleton Council
PO Box 314 Singleton NSW 2330
Ph: 02 6578 7290