EPA National Stormwater Calculator
Gov-Public
EPA's free tool for estimating site runoff reduction from green infrastructure, with climate scenarios.
MUSIC
ActiveeWater's stormwater-quality model — the WSUD assessment standard across Australian councils.
by eWater
- Pricing
- Commercial
- License
- Proprietary
- Commercial use
- Permitted
- Ecosystem
- Standalone
- Platform
- Windows
About MUSIC
MUSIC (Model for Urban Stormwater Improvement Conceptualisation) models urban stormwater quantity and quality through treatment trains — wetlands, bioretention, swales, ponds, gross pollutant traps — at planning level. In Australia it is effectively mandatory: most councils specify MUSIC modelling for water-sensitive-urban-design (WSUD) compliance, and MUSIC Auditor guidelines exist to standardise submissions.
Outside Australia its role is filled by SWMM's LID modules or SUSTAIN-style tools, but for Australian development approvals MUSIC is the path of least resistance and the shared language between designer and assessor.
Where it fits in the workflow
TerrainCatchmentRainfallRunoffRoutingHydraulicsMappingReporting
Alternatives to MUSIC
Ranked by the topics, categories and workflow stages they share with MUSIC.
Causeway Flow
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Storm and foul water drainage design and 1D hydraulic modelling software for UK and Irish civil engineers.
EPA SWMM
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The public-domain engine of urban drainage: dynamic-wave pipe networks, runoff, LID and water quality.
Virginia DEQ's official Excel workbooks for stormwater compliance via the Runoff Reduction Method.
Visual OTTHYMO
Commercial
Hydrologic modeling software for urban and rural stormwater management, master drainage planning, and pond design.
Delta Hydro Studio
FreemiumVerified
Browser-based hydrology and hydraulics calculators for practising engineers — no install, report-ready output.