If your development includes on-site stormwater detention (OSD) you will need to include specific information with you application as shown below.
For Development Applications:
- Stormwater Concept Plan (SCP) including an OSD system
- The permissible site discharge (PSD l/sec) and the site storage requirement (SSR m3) values for the subject site
- Refer to the relevant chapter in Wollongong DCP for additional requirements.
See our DA Checklists for details of other information needed in your development application, or contact us for development advice if you're unsure.
For Construction Certificate (CC) or combined Development Application and Construction Certificate (DA/CC):
- Detailed stormwater plan including an OSD system
- The permissible site discharge (PSD l/sec) and the site storage requirement (SSR m3) values for the subject site
- Construction plans and details of the OSD system
- Maintenance schedule for the OSD system
- Plan of the OSD identification plaque
- Refer to the relevant chapter in Wollongong DCP for additional requirements.
Before a final Occupation Certificate (OC) or Subdivision Certificate (SC) is issued:
- Work-as-executed plans
- Certificate of Hydraulic Compliance for the OSD system
- Structural Certificate for components of the OSD system where applicable
- Registered documents including the Positive Covenant and Restriction on Use
- Registered final plan (linen plan).