The STORM Calculator has been replaced by BlueFactor. BlueFactor can be used to assess stormwater management for planning applications for small developments within Victoria. It will remain free to use for the next few years.
Please visit BlueFactor and see the FAQ and user tutorials. Email [email protected] for assistance.
MUSIC
MUSIC is a computer model representing a project or catchment area, the drainage connections and a series of stormwater treatments. It simulates rainfall and runoff at six-minute intervals over at least one year, and then treatment by sediment basins, wetlands and other water sensitive urban design measures.
MUSIC is more sophisticated, and allows you to adjust many design dimensions and model a series of treatments, called a treatment train.
To learn more about MUSIC, visit the following webpages:
Melbourne Water MUSIC Guidelines 2026 - Current tool guidelines
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Melbourne Water’s MUSIC Guideline 2026
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Melbourne Water has released an updated version of the MUSIC (Model for Urban Stormwater Improvement Conceptualisation) Modelling Guideline.
The purpose of this document is to provide guidance on modelling approaches and input parameters for MUSIC models that are submitted to Melbourne Water. This revision builds on the 2024 edition.
The new guideline, rainfall templates, and associated maps are available here along with further information about the changes.
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MUSIC Auditor
MUSIC Auditor is a tool used by Melbourne Water and councils to assess MUSIC models and check they comply with Melbourne Water's MUSIC guidelines.
You can check your model before you submit it:
