Stormwater outlets

Applications for stormwater outlets must include the following information:

  1. Location of the stormwater outlets (plan view).
  2. Pipe size, orientation of outlet, height of outlet above stream bed. 
  3. Cross-section of waterway with approximate dimensions. 
  4. Stormwater catchment area. 
  5. Expected increase in runoff. 
  6. Expected stormwater volume and velocity. 
  7. An assessment of the impacts on the waterway from increased stormwater volume, velocity and water quality.
  8. The proposed management solutions to reduce the potential impacts (volume, velocity, water quality, litter management) on the waterway and methods used to treat water quality to meet SEPP objectives.