Mosman Stormwater Conditions

78. To ensure that future owners are made aware of their responsibilities with respect to the on site detention (OSD) system, rainwater reuse tanks or water quality control system, a Positive Covenant shall be created on the title of the allotment requiring that the owner(s) maintain and keep in working order the OSD system, rainwater reuse tanks or water quality control system, unless otherwise approved in writing by Mosman Council. A fee applies for the checking, approval and execution of the Positive Covenant by Council and must accompany the Positive Covenant when lodged with Council. For details refer to Council’s current Fees and Charges Schedule at the time of payment. The terms of…

16. Having regard to hard surface areas proposed, the capacity of the stormwater system and the need to retard the flow of stormwater in peak flow periods, an on-site- detention (OSD) system shall be provided. Detailed plans shall be submitted with the Construction Certificate application and certified as complying with Council’s Policy “Stormwater Management in Mosman” by a Civil Engineer with corporate membership of the Institute of Engineers Australia or who is eligible to become a corporate member and has appropriate experience and competence in the related field. Where located below a driveway or built structure, the engineer is to certify that the OSD system has been designed to…

37. If site or building works will: • cause pedestrian or vehicular traffic in a public place to be obstructed or rendered inconvenient or unsafe; or • have the potential to damage adjoining private land by way of falling objects; then the site must be fenced throughout construction and must comply with SafeWork NSW requirements and be a minimum of 1.8 metres in height. The hoarding/fence must be removed when the work has been completed. Where construction requirements or site constraints necessitate the hoarding or fencing being located on Council land, a Footpath/Nature Strip/Roadway Occupation form is to be lodged with Council and all fees paid prior to the hoarding/fencing being erected…

73. So that Council has accurate records of the stormwater system to aid with catchment management functions, work as executed details of the on site detention (OSD) system or rainwater reuse tanks prepared by a Civil Engineer with membership of the Institute of Engineers Australia or who is eligible to become a member and has appropriate experience and competence in the related field, demonstrating that the required storage and discharge volumes have been constructed in accordance with the design requirements and Council’s Policy for "Stormwater Management in Mosman" are to be provided to Council. The details must show the invert levels of the OSD system or rainwater reuse tanks as well as…

17. To minimise adverse impacts of water quality on Sydney Harbour, waterways, bushland and drainage systems, permanent post construction stormwater quality controls shall be provided. Detailed plans shall be submitted with the Construction Certificate application and certified as complying with Council’s Policy “Stormwater Management in Mosman” by a Civil Engineer with corporate membership of the Institute of Engineers Australia or who is eligible to become a corporate member and has appropriate experience and competence in the related field. Where located below a driveway or built structure, the engineer is to certify that the permanent post construction stormwater quality control system…

44. In order to maintain the amenity of adjoining properties, audible site works shall be restricted to between 7.00am and 6.00pm, Monday to Friday and 8.00am to 1.00pm Saturday. Inaudible site works may also take place between 7.00am and 8.00am on Saturdays. No site works shall be undertaken on Sundays or public holidays. Unless otherwise approved within a Construction Traffic Management Plan, construction vehicles, machinery, goods or materials shall not be delivered to the site outside the approved hours of site works. Erosion and Sedimentation Controls

33. Stormwater shall be connected directly to Council's underground pit and pipe network. Detailed drainage plans must be submitted with the Construction Certificate application and certified as complying with Council’s Policy “Stormwater Management in Mosman” by a Civil Engineer with membership of the Institute of Engineers Australia or who is eligible to become a member and has appropriate experience and competence in the related field. Drainage

38. Erosion and sedimentation controls shall be installed prior to commencement of any works on the site in order to prevent the discharge of sediment from the site. The controls shall be installed in accordance with the Erosion and Sedimentation Control Plan for the site and the NSW Government’s policy Managing Urban Stormwater: Soils and Construction (also known as The Blue Book). Tree Protection Detailed Measures

13. If soil conditions require it, retaining walls or other approved methods necessary to prevent the movement of soil, together with associated stormwater drainage measures, shall be designed by a Civil Engineer or other appropriately qualified person. Details of any retaining walls shall accompany plans and specifications submitted with the Construction Certificate application. Drainage

15. To ensure drainage connection/s are properly completed, an application to “Connect to Council’s Stormwater Pipelines or Gully Pits” and/or an “Application for Road Opening Permit” shall be made and paid for prior to the issue of the Construction Certificate. Both forms can be accessed and fees paid from Council’s website. Rainwater Re Use System/Onsite Detention

46. Appropriate measures (e.g. fine water spray) shall be employed during demolition, excavation and construction works to prevent the emission of dust and other impurities into the surrounding environment. All such measures shall be co ordinated with site sedimentation controls to ensure polluted waters do not leave the site. Waste Management

31. To allow for sustainable waste management, a completed Site Waste Minimisation and Management Plan (SWMMP) shall be submitted in accordance with the Mosman Waste Minimisation Policy 2012. A copy of the Mosman Waste Minimisation Policy 2012 including a SWMMP template can be found on Council’s website. Erosion and Sedimentation Control Plan

18. The approved plans must also be approved by Sydney Water prior to excavation or construction works commencing. This allows Sydney Water to determine if sewer, water or stormwater mains or easements will be affected by any part of your development. Please go to sydneywater.com.au/tapin to apply. Driveway

32. An erosion and sedimentation control plan in accordance with the NSW Government’s policy Managing Urban Stormwater: Soils and Construction (also known as The Blue Book) is to be submitted and approved by the Principal Certifying Authority prior to the issue of the Construction Certificate. Drainage

45. Erosion and sedimentation controls must be effectively maintained at all times during the course of construction and shall not be removed until the site has been stabilised or landscaped to the Principal Certifying Authority’s satisfaction. Dust Control