Camden Stormwater Conditions

4. Sydney Water, Ref 202758, dated 23 June 2025. Condition reason: To ensure the development complies with Authority requirements. (2) Approved plans and documents - Development must be carried out in accordance with the following approved plans and documents, except where the conditions of this development consent expressly require otherwise: Approved plans Number Title Drawn by Date Detail Survey Lot 4 DP 1262720 9 CEH Consulting A1-D225264 Gregory Hills 12/5/2025 Pty Ltd Road, Gregory Hills DA000 Cover Pahe DKO 21/10/2025 Revision G DA001 Site Analysis DKO 3/7/2025 Revision C DA002 Campus Plan DKO 21/10/2025 Revision D DA003 Site Plan DKO 21/10/2025 Revision D DA004 Demolition Plan DKO…

5. All tree stock must be compliant with AS2303-2018, with certification to be provided to the principal by the grower. Uncertified tree stock will not be accepted by Council. Condition reason: To ensure that detailed landscaping requirements are documented. (13) Section 7.11 contributions - Before the issue of a construction certificate, contributions must be made to Council for the following services and amounts under section 7.11 of the Environmental Planning and Assessment Act 1979: Camden Growth Area Contributions Plan (Amendment 3) Indexed Contribution Type Amount Payable Rate $62,066 Roads Land $19,725.00 per net developable hectare $293,958 Roads Works $93,420.00 per net developable…

2. A section 73 compliance certificate from Sydney Water demonstrating that satisfactory arrangements have been made to service the approved development. Applications can be made either directly to Sydney Water or through a Sydney Water accredited Water Servicing Coordinator (WSC). Go to the Sydney Water website or phone 1300 082 746 to learn more about applying through an authorised WSC or Sydney Water. Condition reason: To ensure that energy, water and wastewater services are provided for the development. (5) Acoustic compliance report - Before the issue of an occupation certificate, an acoustic compliance report must be prepared by a suitably qualified acoustic consultant and…

2. A section 73 compliance certificate from Sydney Water demonstrating that satisfactory arrangements have been made to service the approved development. Applications can be made either directly to Sydney Water or through a Sydney Water accredited Water Servicing Coordinator (WSC). Go to the Sydney Water website or phone 1300 082 746 to learn more about applying through an authorised WSC or Sydney Water. Condition reason: To ensure that energy, water and wastewater services are provided for the development. (4) Verge reconstruction - Before the issue of an occupation certificate, the unpaved road verges directly adjoining the property must be reconstructed with grass species listed in…

7. Serviced by a minimum 1.8m wide door(s) that opens in an outwards direction and can be locked open. Condition reason: To ensure that hygienic waste management facilities are provided. 2.2 - Before Building Work Commences (1) Public liability insurance policy - Before any building work commences, the developer must take out a public liability insurance policy with a minimum cover of $20 million in relation to the occupation of, and works within, all public property for the full duration of the works. Evidence of the policy must be provided to the principal certifier. Condition reason: To ensure adequate public liability insurance is obtained to cover development within public property.…

5. For roads and car parks: a. Pavement design. b. Traffic management devices. c. Line marking. The plans and information must be accompanied by certification from a suitably qualified civil engineer certifying that they comply with Council’s engineering specifications. Condition reason: To ensure that civil works are designed to appropriate standards. (12) Construction on-site detention/sediment control basins - Before the issue of a construction certificate, information detailing the location and design of construction on-site detention/sediment control basins within the site must be prepared by a suitably qualified person, to the certifier’s satisfaction. Condition reason: To ensure that…

2. For sand filters and where a Sydney Water sewer is not available, wastewater disposal must meet the following requirements: a. discharge to a rubble pit measuring 600mm wide x 600mm deep x 3m long and located not less than 3m from any structure or property boundary, or b. discharge to a tail out drain to disperse the water over a large, grassed area, provided that the land fall does not direct water to buildings on the site or adjoining properties or create a nuisance to an adjoining property owner. The following requirements must also be complied with: Page 11 OFFICIAL i. Wastewater must not be discharged to a septic tank, an on-site sewage management installation or an effluent…

2. A section 73 compliance certificate from Sydney Water demonstrating that satisfactory arrangements have been made to service the approved development. Applications can be made either directly to Sydney Water or through a Sydney Water accredited Water Servicing Coordinator (WSC). Go to the Sydney Water website or phone 1300 082 746 to learn more about applying through an authorised WSC or Sydney Water. Condition reason: To ensure that energy, water and wastewater services are provided for the development. (4) On-site detention facility plan of management (preparation) - Before the issue of an occupation certificate, an on-site detention facility plan of management (POM) must be prepared…

5. The property owner will indemnify Council and all adjoining property owners against damage to their properties arising from the failure of any component of the facilities or the failure to clean, maintain and repair the facilities. Condition reason: To provide a legal mechanism for the long-term maintenance of water management facilities. (16) On-site detention facility plan of management (preparation) - Before the issue of an occupation certificate, an on-site detention facility plan of management (POM) must be prepared by a suitably qualified person, to the satisfaction of the principal certifier. The POM must describe all design and operational parameters for the facility including:

5. The property owner will indemnify Council and all adjoining property owners against damage to their properties arising from the failure of any component of the facilities or the failure to clean, maintain and repair the facilities. Condition reason: To provide a legal mechanism for the long-term maintenance of water management facilities. (9) On-site detention facility plan of management (preparation) - Before the issue of an occupation certificate, an on-site detention facility plan of management (POM) must be prepared by a suitably qualified person, to the satisfaction of the principal certifier. The POM must describe all design and operational parameters for the facility including:

5. The property owner will indemnify Council and all adjoining property owners against damage to their properties arising from the failure of any component of the facilities or the failure to clean, maintain and repair the facilities. Condition reason: To provide a legal mechanism for the long-term maintenance of water management facilities. (8) On-site detention facility plan of management (preparation) - Before the issue of an occupation certificate, an on-site detention facility plan of management (POM) must be prepared by a suitably qualified person, to the satisfaction of the principal certifier. The POM must describe all design and operational parameters for the facility including:

7. Trees within the public domain should incorporate the relevant WSUD principles. Treenet Inlet for passive irrigation is recommended. Page 7 DA/2025/414/1 OFFICIAL DA/2025/414/1 - Recommended Conditions of Consent – 62 Central Avenue, Oran Park Condition reason: To ensure that detailed landscaping requirements are documented. (14) Waste rooms - Before the issue of a construction certificate, information must be prepared by a suitably qualified person and demonstrate, to the certifier’s satisfaction, that the waste rooms will comply with the following detailed design requirements:

1. Erosion and sediment control measures, including compliance with the NSW Department of Planning, Housing and Infrastructure document ‘Guidelines for erosion and sediment control on building sites’ and the NSW Department of Page 8 OFFICIAL Housing manual ‘Managing Urban Stormwater: Soils and Construction Certificate (the blue book)’ (as applicable and as amended from time to time).

1. Erosion and sediment control measures, including compliance with the NSW Department of Planning, Housing and Infrastructure document ‘Guidelines for erosion and sediment control on building sites’ and the NSW Department of Housing manual ‘Managing Urban Stormwater: Soils and Construction Certificate (the blue book)’ (as applicable and as amended from time to time).

1. Erosion and sediment control measures, including compliance with the NSW Department of Planning, Housing and Infrastructure document ‘Guidelines for erosion and sediment control on building sites’ and the NSW Department of Housing manual ‘Managing Urban Stormwater: Soils and Construction Certificate (the blue book)’ (as applicable and as amended from time to time).

1. Erosion and sediment control measures, including compliance with the NSW Department of Planning, Housing and Infrastructure document ‘Guidelines for erosion and sediment control on building sites’ and the NSW Department of Housing manual ‘Managing Urban Stormwater: Soils and Construction Certificate (the blue book)’ (as applicable and as amended from time to time).

1. Erosion and sediment control measures, including compliance with the NSW Department of Planning, Housing and Infrastructure document ‘Guidelines for erosion and sediment control on building sites’ and the NSW Department of Housing manual ‘Managing Urban Stormwater: Soils and Construction Certificate (the blue book)’ (as applicable and as amended from time to time).

1. Erosion and sediment control measures, including compliance with the NSW Department of Planning, Housing and Infrastructure document ‘Guidelines for erosion and sediment control on building sites’ and the NSW Department of Housing manual ‘Managing Urban Stormwater: Soils and Construction Certificate (the blue book)’ (as applicable and as amended from time to time).

1. Erosion and sediment control measures, including compliance with the NSW Department of Planning, Housing and Infrastructure document ‘Guidelines for erosion and sediment control on building sites’ and the NSW Department of Housing manual ‘Managing Urban Stormwater: Soils and Construction Certificate (the blue book)’ (as applicable and as amended from time to time).

4. Prohibiting the pumping of water seeping into any excavations from being pumped to a stormwater system unless sampling results demonstrate compliance with NSW Environment Protection Authority requirements and the Australian and New Zealand Guidelines for Fresh and Marine Water Quality (2018) criteria for water quality discharge.

4. Prohibiting the pumping of water seeping into any excavations from being pumped to a stormwater system unless sampling results demonstrate compliance with NSW Environment Protection Authority requirements and the Australian and New Zealand Guidelines for Fresh and Marine Water Quality (2018) criteria for water quality discharge.

4. Prohibiting the pumping of water seeping into any excavations from being pumped to a stormwater system unless sampling results demonstrate compliance with NSW Environment Protection Authority requirements and the Australian and New Zealand Guidelines for Fresh and Marine Water Quality (2018) criteria for water quality discharge.

4. Prohibiting the pumping of water seeping into any excavations from being pumped to a stormwater system unless sampling results demonstrate compliance with NSW Environment Protection Authority requirements and the Australian and New Zealand Guidelines for Fresh and Marine Water Quality (2018) criteria for water quality discharge.

4. Prohibiting the pumping of water seeping into any excavations from being pumped to a stormwater system unless sampling results demonstrate compliance with NSW Environment Protection Authority requirements and the Australian and New Zealand Guidelines for Fresh and Marine Water Quality (2018) criteria for water quality discharge.

3. Water quantity and quality facilities: a. A detailed on-site detention and water quality report. b. An electronic stormwater model. c. A validated Camden Council MUSIC-link report with electronic model. Page 6 DA/2025/414/1 OFFICIAL DA/2025/414/1 - Recommended Conditions of Consent – 62 Central Avenue, Oran Park

2. OSD shall be modelled in DRAINS with weir and orifice as per plans prepared by PCE Consulting Engineers, PCE23111. Any excess flow, overtopping or bypass of the OSD shall be reviewed and present no risk to the occupants of the child care centre. Otherwise, the OSD shall be re-sized accordingly.

3. Drains model is to accurately depict the volume available within the proposed OSD tank and should exclude the volume occupied by the WSUD filter chamber. The drains model is to also ensure that the pre-vs-post flow analysis is compliant with Camden Council Design Specifications.

3. Water quantity and quality facilities: OFFICIAL a. A detailed on-site detention and water quality report. b. An electronic stormwater model. c. A validated Camden Council MUSIC-link report with electronic model.

3. Water quantity and quality facilities: a. A detailed on-site detention and water quality report. b. An electronic stormwater model. c. A validated Camden Council MUSIC-link report with electronic model.

3. Water quantity and quality facilities: a. A detailed on-site detention and water quality report. b. An electronic stormwater model. c. A validated Camden Council MUSIC-link report with electronic model.

3. Water quantity and quality facilities: a. A detailed on-site detention and water quality report. b. An electronic stormwater model. c. A validated Camden Council MUSIC-link report with electronic model.

3. Water quantity and quality facilities: a. A detailed on-site detention and water quality report. b. An electronic stormwater model. c. A validated Camden Council MUSIC-link report with electronic model.

3. Water quantity and quality facilities: a. A detailed on-site detention and water quality report. b. An electronic stormwater model. c. A validated Camden Council MUSIC-link report with electronic model.

4. Rising main from basement tank pump is to be connected to the WSUD filter chamber in the proposed OSD tank and the plans are to reflect this.

2. Civil engineering plan shall include the pipe and pit sizes as well as pit inserts mentioned in stormwater report.

1. OSD tank access points are to include step irons to provide access.

4. Erosion and sediment control measures must be installed.

5. Erosion and sediment control measures must be installed.