Step 18: Enter the BMP design parameters for bioretention basin C into the parameters” tab. The “BMP following inputs are required for this BMP. Overflow surface area, is 750 square feet Bottom surface area, which is 500 square feet Overflow depth, which is 1.4 feet Underlying soil Hydrologic Soil Group, which is 5 SP (HSG A, 0.8 in/hr) – Required drawdown time, which is 48 hours Step 19: Click on Summary” tab to view results for this BMP. “BMP Step 20: Click on the button to exit the BMP properties screen. “OK” Step 21: Open the BMP properties for Basin D by right clicking on the basin (w/o “Bioretention underdrain)” icon and selecting BMP properties”, or by double clicking on the basin “Edit “Bioretention (w/o underdrain)” icon. Step 22: Determine the watershed characteristic for bioretention D. The watershed parameters for bioretention basin D include a 0.55 acre site with 0.16 acres of impervious area and 0.39 acres of Managed turf area in A soils. The Managed turf area includes the 0.011 acre bioretention basin. Change the name of the BMP to represent bioretention basin D, route the BMP to the stormwater pond and fill in the BMP specific watershed information. Step 23: Enter the BMP design parameters for bioretention basin D into the parameters” tab. The “BMP following inputs are required for this BMP. Overflow surface area, which is 500 square feet Bottom surface area, which is 300 square feet Overflow depth, which is 1.4 feet
Step 18: Enter the BMP design parameters for bioretention basin C into the “BMP parameters” tab. The following inputs are required for this BMP. Overflow surface area, is 750 square feet Bottom surface area, which is 500 square feet Overflow depth, which is 1.4 feet Underlying soil – Hydrologic Soil Group, which is 5 SP (HSG A, 0.8 in/hr) Required drawdown time, which is 48 hours Step 19: Click on “BMP Summary” tab to view results for this BMP. Step 20: Click on the “OK” button to exit the BMP properties screen. Step 21: Open the BMP properties for Basin D by right clicking on the “Bioretention basin (w/o underdrain)” icon and selecting “Edit BMP properties”, or by double clicking on the “Bioretention basin (w/o underdrain)” icon. Step 22: Determine the watershed characteristic for bioretention D. The watershed parameters for bioretention basin D include a 0.55 acre site with 0.16 acres of impervious area and 0.39 acres of Managed turf area in A soils. The Managed turf area includes the 0.011 acre bioretention basin. Change the name of the BMP to represent bioretention basin D, route the BMP to the stormwater pond and fill in the BMP specific watershed information. Step 23: Enter the BMP design parameters for bioretention basin D into the “BMP parameters” tab. The following inputs are required for this BMP. Overflow surface area, which is 500 square feet Bottom surface area, which is 300 square feet Overflow depth, which is 1.4 feet