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Stormwater concentration
Where surface flow, as distinct from that in a natural watercourse, is diverted or collected and as a result the flow is concentrated.

Stormwater Definitions

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1. Absorption/dispersal trench
2. Cut-off drain
3. Gully inlet/pit
4. Grass swale
5. Inter-allotment drainage system
6. Kerb and channel
7. Natural watercourse
8. Perimeter bank
9. Stormwater
10. Stormwater concentration
11. Surface run-off
12. Surface water
13. Watercourse