NCC 2022 Volume Three - Plumbing Code of Australia
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E4

VIC Part E4 Stormwater - Surface and sub-surface drainage systems

VIC Part E4 Stormwater - Surface and sub-surface drainage systems

Introduction to this Part

This Part sets out the requirements for the design, construction, installation, replacement, repair, alteration and maintenance of any part of a surface drainage system to the point of connection.

VIC E4O1 Objective2019: FO2

The Objective of this Part is to—

  1. safeguard people from illness, injury or loss (including loss of amenity) due to the failure of a drainage installation;
  1. ensure that a stormwater drainage installation is adequate; and
  2. conserve water and energy; and
  3. safeguard the environment; and
  4. safeguard public and private infrastructure; and
  5. ensure that a stormwater drainage installation is designed and is capable of being maintained so that throughout its serviceable life it will continue to satisfy Objectives (a) to (e).

VIC E4F1 Functional statement2019: FF2.1

Buildings and their surroundings are to be provided with a surface drainage and subsurface drainage installation and be constructed in such a manner as to provide protection for people, property and the environment from the adverse effects of stormwater.

VIC E4P1 Surface drainage systems2019: FP2.1

A surface drainage system must dispose of stormwater flows from rainfall events having an average recurrence interval appropriate to:

  1. The importance of the building.
  2. The severity of potential damage to property, loss of amenity, illness or injury that would result from the failure of the system.

VIC E4P2 Design, construction and installation2019: FP2.2

(1) A surface drainage installation must avoid the following:

  1. Blockage and uncontrolled discharge.
  2. Damage from root penetration, superimposed loads or ground movement.
  3. Entry of sewage and/or liquid trade waste.
  4. Entry of stormwater into a sanitary drainage.
  5. Damage to the Network Utility Operator's drainage system
  6. Foul air and gases accumulating in the stormwater system.
  7. Loss to buildings or property.

(2) A surface drainage installation must ensure the following:

  1. Access for maintenance and clearing blockages.
  2. Stormwater is transferred to a point of connection.

VIC E4D1 Application2019: F2D1

Performance Requirements E4P1 to E4P2 are satisfied by complying with E4D2.

VIC E4D2 General requirements2019: F2D2

The design, construction, installation, replacement, repair, alteration and maintenance of surface and subsurface drainage systems must be in accordance with AS/NZS 3500.3.