Vegetated Filter Strip System Design Manual
Design Tables

Discharge Rate to Infiltration Area Infiltration Area Required Based on Saturated Hydraulic Conductivity of the Following Soil Texture Classes*
Loam Silt Silt Loam
Table 6.3 Infiltration Area Required Based on Saturated Hydraulic Conductivity of Soil Texture Classes
m3/s gal/min m2 ft2 m2 ft2 m2 ft2
1.00E-04 1.59 27.28 293.62 144.09 1551.04 52.97 570.14
2.00E-04 3.17 54.56 587.24 288.18 3102.07 105.93 1140.28
3.00E-04 4.76 81.83 880.87 432.28 4653.11 158.90 1710.41
4.00E-04 6.34 109.11 1174.49 576.37 6204.15 211.86 2280.55
5.00E-04 7.93 136.39 1468.11 720.46 7755.19 264.83 2850.69
6.00E-04 9.51 163.67 1761.73 864.55 9306.22 317.80 3420.83
7.00E-04 11.10 190.94 2055.36 1008.65 10857.26 370.76 3990.96
8.00E-04 12.68 218.22 2348.98 1152.74 12408.30 423.73 4561.10
9.00E-04 14.27 245.50 2642.60 1296.83 13959.34 476.69 5131.24
1.00E-03 15.85 272.78 2936.22 1440.92 15510.37 529.66 5701.38
1.50E-03 23.78 409.17 4404.34 2161.38 23265.56 794.49 8552.07
2.00E-03 31.70 545.55 5872.45 2881.84 31020.75 1059.32 11402.75
2.50E-03 39.63 681.94 7340.56 3602.31 38775.94 1324.15 14253.44
3.00E-03 47.55 818.33 8808.67 4322.77 46531.12 1588.98 17104.13
3.50E-03 55.48 954.72 10276.79 5043.23 54286.31 1853.81 19954.82
4.00E-03 63.40 1091.11 11744.90 5763.69 62041.50 2118.64 22805.51
4.50E-03 71.33 1227.50 13213.01 6484.15 69796.69 2383.47 25656.20
5.00E-03 79.25 1363.88 14681.12 7204.61 77551.87 2648.31 28506.89
5.50E-03 87.18 1500.27 16149.24 7925.07 85307.06 2913.14 31357.57
6.00E-03 95.10 1636.66 17617.35 8645.53 93062.25 3177.97 34208.26
6.50E-03 103.03 1773.05 19085.46 9365.99 100817.44 3442.80 37058.95
7.00E-03 110.95 1909.44 20553.57 10086.46 108572.62 3707.63 39909.64
7.50E-03 118.88 2045.83 22021.69 10806.92 116327.81 3972.46 42760.33
8.00E-03 126.80 2182.21 23489.80 11527.38 124083.00 4237.29 45611.02
8.50E-03 134.73 2318.60 24957.91 12247.84 131838.18 4502.12 48461.71
9.00E-03 142.65 2454.99 26426.02 12968.30 139593.37 4766.95 51312.39
9.50E-03 150.58 2591.38 27894.14 13688.76 147348.56 5031.78 54163.08
0.01 158.50 2727.77 29362.25 14409.22 155103.75 5296.61 57013.77
0.02 237.75 4091.65 44043.37 21613.83 232655.62 7944.92 85520.66
0.02 317.00 5455.54 58724.50 28818.44 310207.49 10593.22 114027.54
0.03 396.26 6819.42 73405.62 36023.05 387759.37 13241.53 142534.43
0.03 475.51 8183.31 88086.74 43227.67 465311.24 15889.83 171041.31
0.04 554.76 9547.19 102767.87 50432.28 542863.11 18538.14 199548.20
0.04 634.01 10911.07 117448.99 57636.89 620414.99 21186.44 228055.08
0.05 713.26 12274.96 132130.11 64841.50 697966.86 23834.75 256561.97
0.05 792.51 13638.84 146811.24 72046.11 775518.73 26483.05 285068.86
0.06 871.76 15002.73 161492.36 79250.72 853070.61 29131.36 313575.74
0.06 951.01 16366.61 176173.49 86455.33 930622.48 31779.66 342082.63
0.07 1030.26 17730.50 190854.61 93659.94 1008174.35 34427.97 370589.51
0.07 1109.51 19094.38 205535.73 100864.55 1085726.22 37076.27 399096.40
0.08 1188.77 20458.27 220216.86 108069.16 1163278.10 39724.58 427603.28
0.08 1268.02 21822.15 234897.98 115273.78 1240829.97 42372.88 456110.17
0.09 1347.27 23186.03 249579.11 122478.39 1318381.84 45021.19 484617.06
0.09 1426.52 24549.92 264260.23 129683.00 1395933.72 47669.49 513123.94
0.10 1505.77 25913.80 278941.35 136887.61 1473485.59 50317.80 541630.83
0.10 1585.02 27277.69 293622.48 144092.22 1551037.46 52966.10 570137.71
0.15 2377.53 40916.53 440433.72 216138.33 2326556.20 79449.15 855206.57
0.20 3170.04 54555.37 587244.95 288184.44 3102074.93 105932.20 1140275.42
0.25 3962.55 68194.22 734056.19 360230.55 3877593.66 132415.25 1425344.28
0.30 4755.06 81833.06 880867.43 432276.66 4653112.39 158898.31 1710413.14
0.35 5547.57 95471.90 1027678.67 504322.77 5428631.12 185381.36 1995481.99
0.40 6340.08 109110.75 1174489.91 576368.88 6204149.86 211864.41 2280550.85
0.45 7132.59 122749.59 1321301.15 648414.99 6979668.59 238347.46 2565619.70
0.50 7925.10 136388.43 1468112.38 720461.10 7755187.32 264830.51 2850688.56

Soil texture class and typical hydraulic conductivity values under saturated soil conditions derived from Rawls et al (1982) for all textures except silt, which is taken from Carsel & Parrish (1988).

Back to Chapter 6 - Table of Contents

| Top of Page |


For more information:
Toll Free: 1-877-424-1300
Local: (519) 826-4047
E-mail: ag.info.omafra@ontario.ca
Author: Robert P. Stone, P. Eng., Engineer, Soil/OMAFRA
Creation Date: 04 July 2005
Last Reviewed: 16 August 2007