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OSTP Design Summary Worksheet UNIVERSITY <br /> Minnesota Pollution OF MINNESOTA <br /> Control Agency _--- --,�N`•�- <br /> v 11.05.31 <br /> Property Owner/Client: Arthur J. Nelson Estate <br /> Site Address: Proposed lot 1, Orono, MN 55356 Site A <br /> 1. AVERAGE DESIGN FLOW: <br /> A. Design Flow: 750 Gallons Per Day(GPD) Note: The estimated design flow is considered a peak flow rate including a safety <br /> factor.For long term performance, the average daily flow is recommended to be< <br /> B. Septic Tank capacity: 2250 Gallons 60%of this value. <br /> C. Number of Septic Tanks or Compartments: 2 Effluent Screen Et Alarm? Yes <br /> Type of Soil Treatment and Dispersal Area* Type of Distribution* <br /> 0 Trenches 0 Bed Q Mound C At-Grade 0 Gravity Distribution ®Pressure Distribution-Level 0 Pressure Distribution-Unlevel <br /> 0 Dnp Distribution 0 None-Holding Tanks Only <br /> *Selection Required Benchmark Elev= 100 ft <br /> System Type Benchmark Location: Test hole# 1 <br /> Iii Type I Type II I-1,Type III I Type IV Type V Type of Distribution Media: <br /> Rock <br /> D. Pump Tank 1 Capacity: Gallons Pump Tank 2 Capacity: Gallons <br /> 2. SITE EVALUATION: <br /> A. Depth to Limiting Layer: 28 inches 2.3 ft Elevation of Limiting Layer: 97.7 ft <br /> B. Measured Percent Land Slope: 4.0 % 0.0 <br /> C. Soil Texture: Loam Percolation Rate: 6 Minutes per Inch <br /> D. Soil Hydraulic Loading Rate: 0.60 GPD/ft2 E. Contour Loading Rate 12.0 Gat/ft <br /> 3. DESIGN SUMMARY <br /> Trench Design Summary <br /> Absorption Area ft2 Sidewall Depth in Trench Width in <br /> Total Lineal Feet ft Number of Trenches Maximum Trench Depth in <br /> Designers Max Trench Depth in <br /> Bed Design Summary <br /> Absorption Area ft2 Media Below Pipe in Bed Length ft <br /> Bed Width ft Maximum Bed Depth in Designer's Max Bed Depth in <br /> Mound Design Summary <br /> Absorption Area 625 ft2 Bed Length 63 ft Bed Width <br /> 10.0 ft <br /> Absorption Width 20.0 ft Clean Sand Lift 1.0 ft Berm Width (slope 0-1%) ft <br /> Upslope Berm Width 10.4 ft Downslope Berm Width 16.2 ft Endslope Berm Width 10.2 ft <br /> Total System Length 83 ft Total System Width 37 ft <br /> At-Grade Design Summary <br /> Absorption Bed Width ft Absorption Bed Length ft System Height ft <br /> Absorption Bed Area ft2 Upslope Berm Width ft Downslope Berm Width ft <br /> f I_ .. . . .. I I. .. . ... ... I I.. <br />