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20220237 73 Southern Cross Pde SWMP
Original PDF page 30, section 1. The text section number identifies this passage in the reader.
Site Catchment Areas for DRAINS Modelling Project number: 20220237 Calculations: B. Parry Street Address: 73 Southern Cross Parade Locality: Sunrise Beach, NSC Date: 31/10/2022 Existing Site Existing Site Directly connected (m²) Indirectly connected (m²) 73 Southern Cross Pde Roof 232.0 232.0 - Impervious Ground 8.4 - 8.4 Driveway 88.5 88.5 - Total Imp 328.9 320.5 8.4 Total Per 481.9 - 481.9 Site Area 810.8 320.5 8.4 % impervious Effective DCIA = 75% DCIA ICIA +25% ineffective DCIA 240.4 88.5 Impervious 40.6% 29.6% 10.9% Pervious 59.4% Proposed Site Proposed Directly connected (m²) Indirectly connected (m²) 73 Southern Cross Pde Roof 336.3 336.3 - Impervious Ground 124.5 - 124.5 Driveway 87.7 87.7 Total Imp 548.5 424.0 124.5 Total Per 262.3 - 262.3 Site Area 810.8 424.0 386.8 % impervious Effective DCIA = 75% DCIA ICIA +25% ineffective DCIA 318.0 230.5 Impervious 67.7% 39.2% 28.4% Pervious 32.3%
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