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2 Emerald SWMP 2213_Rev1
Attached to the e-mail MCU22/0062 - Response to Council Information Request.
Callaghan & Toth
APPENIDX 1: Summary of Detention Calculation Results
2 EMERALD STREET COOROY
Pre-Development Case
968m² Catchment
tc = 6 min., C=0.65
Cf50%=0.85, Cf10%=1.00, Cf1%=1.20
Q1% flow = 0.0622 m³/s
Q10% flow = 0.0355 m³/s
Q50% flow = 0.0227 m³/s
Post-Development Case (No Detention)
968m² Catchment
tc = 6 min., Commercial C=0.9
Cf50%=0.85, Cf10%=1.00, Cf1%=1.20
Q1% flow = 0.0796 m³/s
Q10% flow = 0.0492 m³/s
Q50% flow = 0.0314 m³/s
Post-Development Case (with Detention)
968m² Catchment
tc = 6 min., Commercial C=0.9
Cf50%=0.85, Cf10%=1.00, Cf1%=1.20
Q1% flow = 0.0622 m³/s
Q10% flow = 0.0290 m³/s
Q50% flow = 0.0190 m³/s
Hafner 2213 SWMP_Rev1.docx July 2022 10
2213
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