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Minnesota Pollution <br />Control Agency <br />OSTP Mound Materials Worksheet UNIVERSITY <br />OF MINNESOTA <br />Project ID: <br />A. Calculate Bed (rock) Volume: Bed Length (2.Cl X Bed Width (2.8) X Depth = Volume (ft') <br />I 63.0 lft X I 10.0 ltt X 1.0 = I 630.0 <br />Divide ft3 by 27 ft' /yd 3 to calculate cubic yards: <br />I 630.0 I ft) + 27 = I 23.3 <br />Add 20% for constructability: I 23.3 I yd 3 X 1.2 = I 28.0 <br />B. Calculate Clean Sand Volume: <br />Volume Under Rock bed: Average Sand Depth x Media Width x Media Length = cubic feet <br />I 2.0 1ft X I 10.0 ltt X I 63.0 In = I 1249.5 <br />For a Mound on a slope from 0-1% <br />Volume from Length= ((Upslope Mound Height • 1) X Absorption Width Beyond Bed X Media Bed Length) <br />I 1 ft -1) X I I X I !ft = I I <br />Volume from Width= ((Upslope Mound Height -1) X Absorption Width Beyond Bed XMedia Bed Width) <br />I 1 ft • 1) X I I X I lft = I I <br />Total Clean Sand Volume: Volume from Length + Volume from Width + Volume Under Media <br />I I ft3 + I I ft' + I I ft3 = I lttJ <br />For a Mound on a slope greater than 1% <br />Upslope Volume: ((Upslope Mound Height -1) x 3 x Bed Length)+ 2 = cubic feet <br />((I 3.8 I ft • 1) X 3.0 ft X I 63.0 I > + 2 = I 267.8 <br />Downslope Volume: ((Downslope Height -1) x Downslope Absorption Width x Media Length) + 2 = cubic feet <br />((I 4.1 I ft. 1) X I 16.0 ltt X I 63.0 I ) +2 = I 1579.2 <br />Ends/ope Volume: (Downslope Mound Height• 1) x 3 x Media Width = cubic feet <br />(j 4.1 I ft -1 > X 3.0 ft X I 10.0 In = I 94.0 <br />Total Clean Sand Volume: Upslope Volume + Downslope Volume + Endslope Volume + Volume Under Media <br />I 267.8 I tt3 + I 1579.2 I ft' + I 94.0 I te + I 1249.5 In)= I 3190.5 <br />Divide ft3 by 27 tt3 /yd 3 to calculate cubic yards: I 3190.5 I ft3 + 27 = I 118.2 <br />Add 20% for constructability: I 118.2 I yd 3 X 1.2 = ! 141.8 <br />C. Calculate Sandy Berm Volume: <br />Total Berm Volume (approx): ((Avg. Mound Height• 0.5 ft topsoil) x Mound Width x Mound Length)+ 2 = cubic feet I > +2 = I !I 4.0 I -0.5 )ft X I 44.2 ltt X I 87.8 6756.4 <br />Total Mound Volume -Clean Sand volume •Rock Volume= cubic feet <br />I 6756.4 I ft3 • I 3190.5 I ft) -I 630.0 I tt3 = I 2936.0 <br />Divide ft3 by 27 tt3 /yd3 to calculate cubic yards: I 2936.0 I ft 3 + 27 = I 108.7 <br />Add 20% for constructability: I · 108.7 I yd 3 X 1.2 = I 130.5 <br />D. Calculate Topsoil Material Volume: Total Mound Width X Total Mound Length X .5 ft <br />I 44.2 In x I 87.8 In x 0.5 ft = I 1939.6 <br />Divide ft3 by 27 ft3 /yd 3 to calculate cubic yards: I 1939.6 I ft3 + 27 = I 71.8 <br />Add 20% for constructabllity: I 71.8 I yd 3 X 1.2 = I 86.2 <br />V 06.12.13 <br />1ft) <br />lydl <br />jydl <br />lnJ <br />lttl <br />lnJ <br />lfe <br />In) <br />1Yd3 <br />lydl <br />ltt' <br />lttJ <br />lydJ <br />lydJ <br />In' <br />lydJ <br />1yd'