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OSTP Bed Design <br /> UNIVERSITY <br /> Minnesota pollution Control Agency Worksheet Or MINNESOTA <br /> 1. SYSTEM SIZING: Project ID: 22052 v 04.06.2017 <br /> A. Design Flow (Design Sum.1A): 600 GPD <br /> B. Code Maximum Depth": 16 inches Designers Maximum Depth: inches <br /> C. Soil Loading Rate: 0.60 GPD/ft2 <br /> D. Required Bottom Area: Design Flow (1.A) Loading Rate (1.C) = Initial Required Bottom Area <br /> 600 GPD-- 0.60 GPD/ft 2= 1000 ftz <br /> E. Select Distribution Method: EVI Pressure <br /> Gravity <br /> F. Select Dispersal Type: 6RI Rock <br /> Registered <br /> G. If distribution media is installed in contact with sandy or loamy sand or with a percolation rate of 0.1 to 5 mpi <br /> indicate distribution or treatment method: Pressure distribution <br /> 2. BED CONFIGURATION: (for sites with less than 6%slope) <br /> A. Select size Multiplier: 1.0 1.0 = pressurized or 1.5 = gravity <br /> B. Req'd Bottom Area = Bottom Area (1.D) X Size Multiplier = <br /> 1000.0 ft2 X ft = 1000 ft2 <br /> C. Designed Bottom Area: 1000 ft Optional upsizing of bed area <br /> D. Select Bed Width: 16 ft <br /> E. Calculate Bed Length: Designed Bottom Area Bed Width = Bed Length <br /> 1000 ftz - 16.0 ft = 62.5 ft <br /> 3. MATERIAL CALCULATION: ROCK <br /> A. If drainfield rock is being used, select sidewall height <br /> 0.50 ft <br /> B. Media Volume: (Media Depth + depth to cover pipe)X Designed Bottom Area = ft' <br /> ft+ 0.33 ft) X 100C.0 ftZ = 830 ft' <br /> C. Calculate Volume in cubic yards: Media volume in cubic feet _ 27 = cubic yards <br /> 830 ft' - 27 = 31 yd3 <br /> 4. MATERIAL CALCULATION: REGISTERED PRODUCTS - CHAMBERS AND EZFLOW <br /> A. Registered Product: <br /> B. Component Length: �ft <br /> C. Component Width: �ft <br /> D. Component depth (louver or depth of sidewall loading) in <br /> E. Number of Components per Row = Bed Length divided by Component Length (Round up) <br /> ft - E=� ft= components <br /> F. Actual Bed Length = Number of Components X Component Length: <br /> components X ft ft <br /> G. Number of Rows = Bed Width divided by Component Width <br /> ft : ft = rows Adjust width so this is an whole number. <br /> H. Total Number of Components= Number of Components per Row X Number of Rows <br /> X � - components <br />