Septic approval in Wollondilly, NSW
Written by Septic Help editors Checked against Wollondilly Shire Council's published onsite wastewater requirements Last reviewed
Wollondilly requirements at a glance
- Council
- Wollondilly Shire Council
- Approval
- s68 approval to install + approval to operate (NSW process)
- Who signs off
- Council's environmental health team; WaterNSW weighs in within the Sydney drinking water catchment
- Forms
- s68 application with wastewater assessment report; AWTS service reports lodged via on-trac
- Typical fees
- Not published as a single figure — check council's current fees & charges; statewide $300–$700 is the usual bracket
- Timeframe
- Allow 4–8 weeks, longer where WaterNSW concurrence applies
What Wollondilly asks for
Wollondilly has more than 8,000 on-site systems, and much of the shire sits inside the Sydney drinking water catchment — the defining local fact. Council's onsite wastewater page sets out the requirements, backed by its On-Site Sewage Management and Greywater Re-Use Policy and its Onsite Wastewater Management Guidelines. Developments in the catchment must also satisfy WaterNSW's requirements, which in practice means a neutral-or-beneficial-effect standard on water quality and closer scrutiny of system choice and effluent areas.
- s68 application with site plan and an on-site wastewater assessment report meeting council's fact-sheet requirements
- Extra design rigour inside the drinking water catchment — check WaterNSW requirements early
- Approval to operate before the system is used; operating without one attracts penalty notices
Wollondilly is stricter than most on AWTS paperwork: every aerated system must be serviced quarterly by a qualified technician, and the service agent must lodge the report through council's on-trac electronic wastewater service platform within seven days of the service. If your agent isn't registered on on-trac, council won't be seeing your reports — worth confirming when you sign a service contract. Council doesn't publish a single headline application fee on its wastewater page; get the current figure from its fees & charges schedule before you lodge.
Confirm before you lodge
Fees and forms change — download the current application pack and fees & charges from Wollondilly Shire Council before lodging, and check whether your lot is in the drinking water catchment.
Nearby councils
Installers who work in Wollondilly
Browse the NSW directory — operators list the LGAs they cover, including Wollondilly.
Common questions
Does the Sydney drinking water catchment change what system I can install?
Often, yes. Inside the catchment your proposal must meet WaterNSW requirements as well as council's, which pushes many sites towards higher-treatment systems and more conservative land application areas. Your wastewater assessment should address it up front.
What is on-trac and does my service agent have to use it?
on-trac is Wollondilly's electronic platform for AWTS service reports. Agents must lodge each quarterly report through it within seven days of servicing — ask your agent to confirm they're registered before you engage them.
What does approval cost in Wollondilly?
Council points applicants to its current fees & charges rather than publishing one figure on the wastewater page. Across NSW, s68 install approvals typically run $300–$700, with the consultant's wastewater report a separate $700–$2,500 — see the NSW approvals guide.