Northern Beaches Stormwater Conditions

• Design certification shall be submitted to the Certifier by a qualified Structural Engineer, that the planters are designed structurally to support the ‘wet’ weight of landscaping (soil, materials and established planting). Reason: To ensure appropriate soil depth for planting and ensure waterproofing and drainage is installed. • On-Site Stormwater Detention Details The Applicant is to provide a certification of drainage plans detailing the provision of on-site stormwater detention in accordance with Northern Beaches Council’s Water Management for Development Policy, and generally in accordance with the concept drainage plans prepared by Acor Consultants, project number NA241102, drawing…

37. Add the following condition: 43G. Positive Covenant, Restriction as to User and Registration of Encumbrances for Stormwater Treatment Measures (Stage 2 - Hotel/Motel) MOD2025/0381 Page 15 of 19 A positive covenant shall be created on the title of the land requiring the proprietor of the land to maintain the stormwater treatment measures in accordance with the standard requirements of Council, the manufacturer and as required by the Stormwater Treatment Measures Operation and Maintenance Plan. A restriction as to user shall be created on the title over the stormwater treatment measures, restricting any alteration to the measures. The terms of the positive covenant and restriction as to…

32. Add the following condition: 20H. Erosion and Sediment Control Plan (Stage 2 - Hotel/Motel) An Erosion and Sediment Control Plan (ESCP) shall be prepared by an appropriately qualified person and implemented onsite prior to commencement. The ESCP must meet the requirements outlined in the Landcom publication Managing Urban Stormwater: Soils and Construction - Volume 1, 4th Edition (2004). The ESCP must include the following as a minimum: Site Boundaries and contours Approximate location of trees and other vegetation, showing items for removal or retention (consistent with any other plans attached to the application) Location of site access, proposed roads and other impervious areas (e.g.…

35. Add the following condition: 24G. Installation and Maintenance of Sediment and Erosion Controls (Stage 2 - Hotel/Motel) Sediment and erosion controls must be installed in accordance with Landcom’s ‘Managing Urban Stormwater: Soils and Construction’ (2004) and the Erosion and Sediment Control Plan prior to commencement of any other works on site. Erosion and sediment controls are to be adequately maintained and monitored at all times, particularly after periods of rain, and shall remain in proper operation until all development activities have been completed and vegetation cover has been re-established across 70 percent of the site, and the remaining areas have been stabilised with…

36. Add the following condition: 43F. Certification for the Installation of Stormwater Treatment Measures (Stage 2 - Hotel/Motel) A certificate from a Civil Engineer, who has membership to Engineers Australia and the National Engineers Register must be provided, stating that the stormwater treatment measures have been installed in accordance with the construction certificate approved plans. The certificate must confirm that stormwater treatment measures are completed, online, in good condition and are not impacted by sediment. Vegetated measures must exhibit an 80 percent survival rate of plantings. The certificate shall be submitted to the Principal Certifier prior to the release of an…

3. Maintenance schedule and procedure - ongoing a) Activity description, and duration and frequency of visits b) Routine maintenance requirements c) Work Health and Safety requirements d) Waste management and disposal e) Traffic control (if required) f) Renewal, decommissioning and replacement timelines and activities of all stormwater tr may be required if an alternative stormwater treatment measure is proposed) g) Requirements for inspection and maintenance records, noting that these records are req to Council upon request. Details demonstrating compliance shall be submitted to the Principal Certifier prior to the release of the Occupation Certificate. Reason: Protection of the receiving…

33. Add the following condition: 20I. Certification of Stormwater Measures (Stage 2 - Hotel/Motel) A certificate from a Civil Engineer, stating that the stormwater treatment measures have been designed guided by the Civil Engineering Plans 250201_DA (Henry&Hymas, dated June 2025) and Council’s Water Management for Development Policy. The stormwater treatment outcome must meet the generic water quality targets stated in Table 5 of the Management for Development Policy. The certificate shall be submitted to the Certifier prior to the release of the Construction Certificate. MOD2025/0381 Page 14 of 19 Reason: Protection of the receiving environment.

1. Detail on the stormwater treatment measures: a) Work as executed drawings b) Intent of the stormwater treatment measures including modelled pollutant removal rates c) Site detail showing catchment for each device d) Vegetation species list associated with each type of vegetated stormwater treatment me e) Impervious area restrictions to maintain the water balance for the site f) Funding arrangements for the maintenance of all stormwater treatment measures g) Identification of maintenance and management responsibilities h) Maintenance and emergency contact information

39. Add the following condition: 43I. Works as Executed Drawings for the Stormwater Treatment Measures (Stage 2 - Hotel/Motel) Works as Executed Drawings for the stormwater treatment measures must be prepared in accordance with Council’s Guideline for Preparing Works as Executed Data for Council Stormwater Assets. The drawings shall be submitted to the Principal Certifier prior to the release of the Occupation Certificate. Reason: Protection of the receiving environment.

2. Maintenance schedule and procedure - establishment period of one year following commissionin a) Activity description, and duration and frequency of visits Additionally for vegetated devices: b) Monitoring and assessment to achieve an 80 percent survival rate for plantings c) Management of weeds, pests and erosion, with weed and sediment cover limited to a m stormwater treatment measure MOD2025/0381 Page 16 of 19

14. Add the following condition: 20B. Carparking Finishes (Stage 2 - Hotel/Motel) All driveways, car parking areas and pedestrian paths are to be surfaced and sealed. Details of the treatment to these areas are to be submitted to the Principal Certifier prior to issue of the Construction Certificate. Reason: To provide suitable stormwater disposal and to prevent soil erosion and runoff.

38. Add the following condition: 43H. Stormwater Treatment Measures Operation and Maintenance Plan (Stage 2 - Hotel/Motel) An Operation and Maintenance Plan is to be prepared to ensure the proposed stormwater treatment measures remain effective. The Plan must be attached to the Positive Covenant (and the community or strata management statement if applicable) and contain the following: