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Appendix C - Stormwater Management Plan
Plans and drawings
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Log in to see the plans as drawnSite Catchment Areas for DRAINS Modelling Project number: 20220213 Calculations: B. Parry Street Address: 14-16 Reserve Street Locality: Pomona, NSC Date: 19/09/2022 Existing Site LiDAR, Site inspection, aerial imagery Existing Site Directly connected (m²) Indirectly connected (m²) 14-16 Reserve StreetRoof 350.1 305.0 45.1 Impervious Ground 13.5 13.5 - Driveway 659.6 659.6 - Total Imp 1,023.2 978.1 45.1 Total Per 804.3 - 804.3 Site Area 1,827.5 978.1 45.1 % impervious Effective DCIA = 75% DCIA ICIA +25% ineffective DCIA 733.6 289.6 Impervious 56.0% 40.14% 15.85% Pervious 44.01% Proposed Site Architectural Plans Proposed Directly connected (m²) Indirectly connected (m²) 14-16 Reserve StreetRoof 543.1 498.0 45.1 Impervious Ground 25.2 13.5 11.7 Driveway 658.2 658.2 - Total Imp 1,226.5 1,169.7 56.8 Total Per 601.0 - 601.0 Site Area 1,827.5 1,169.7 657.8 % impervious Effective DCIA = 75% DCIA ICIA +25% ineffective DCIA 877.3 349.2 Impervious 67.1% 48.0% 19.1% Pervious 32.9%
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