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*
Sand Loamy Sand Sandy 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 1.71 18.45 5.89 63.44 13.90 149.63
2.00E-04 3.17 3.43 36.91 11.79 126.88 27.80 299.25
3.00E-04 4.76 5.14 55.36 17.68 190.33 41.70 448.88
4.00E-04 6.34 6.86 73.81 23.58 253.77 55.60 598.51
5.00E-04 7.93 8.57 92.27 29.47 317.21 69.50 748.14
6.00E-04 9.51 10.29 110.72 35.36 380.65 83.40 897.76
7.00E-04 11.10 12.00 129.17 41.26 444.09 97.30 1047.39
8.00E-04 12.68 13.71 147.62 47.15 507.54 111.20 1197.02
9.00E-04 14.27 15.43 166.08 53.04 570.98 125.10 1346.65
1.00E-03 15.85 17.14 184.53 58.94 634.42 139.00 1496.27
1.50E-03 23.78 25.71 276.80 88.41 951.63 208.51 2244.41
2.00E-03 31.70 34.29 369.06 117.88 1268.84 278.01 2992.55
2.50E-03 39.63 42.86 461.33 147.34 1586.05 347.51 3740.69
3.00E-03 47.55 51.43 553.59 176.81 1903.26 417.01 4488.82
3.50E-03 55.48 60.00 645.86 206.28 2220.47 486.52 5236.96
4.00E-03 63.40 68.57 738.12 235.75 2537.68 556.02 5985.10
4.50E-03 71.33 77.14 830.39 265.22 2854.89 625.52 6733.24
5.00E-03 79.25 85.71 922.65 294.69 3172.10 695.02 7481.37
5.50E-03 87.18 94.29 1014.92 324.16 3489.31 764.53 8229.51
6.00E-03 95.10 102.86 1107.18 353.63 3806.52 834.03 8977.65
6.50E-03 103.03 111.43 1199.45 383.10 4123.73 903.53 9725.79
7.00E-03 110.95 120.00 1291.71 412.57 4440.94 973.03 10473.92
7.50E-03 118.88 128.57 1383.98 442.03 4758.15 1042.54 11222.06
8.00E-03 126.80 137.14 1476.24 471.50 5075.36 1112.04 11970.20
8.50E-03 134.73 145.72 1568.51 500.97 5392.57 1181.54 12718.33
9.00E-03 142.65 154.29 1660.77 530.44 5709.78 1251.04 13466.47
9.50E-03 150.58 162.86 1753.04 559.91 6026.99 1320.54 14214.61
0.01 158.50 171.43 1845.30 589.38 6344.20 1390.05 14962.75
0.02 237.75 257.14 2767.95 884.07 9516.30 2085.07 22444.12
0.02 317.00 342.86 3690.60 1178.76 12688.40 2780.09 29925.49
0.03 396.26 428.57 4613.25 1473.45 15860.49 3475.12 37406.87
0.03 475.51 514.29 5535.91 1768.14 19032.59 4170.14 44888.24
0.04 554.76 600.00 6458.56 2062.83 22204.69 4865.17 52369.61
0.04 634.01 685.72 7381.21 2357.52 25376.79 5560.19 59850.99
0.05 713.26 771.43 8303.86 2652.21 28548.89 6255.21 67332.36
0.05 792.51 857.15 9226.51 2946.90 31720.99 6950.24 74813.73
0.06 871.76 942.86 10149.16 3241.59 34893.09 7645.26 82295.11
0.06 951.01 1028.58 11071.81 3536.28 38065.19 8340.28 89776.48
0.07 1030.26 1114.29 11994.46 3830.97 41237.28 9035.31 97257.85
0.07 1109.51 1200.01 12917.11 4125.66 44409.38 9730.33 104739.23
0.08 1188.77 1285.72 13839.76 4420.35 47581.48 10425.35 112220.60
0.08 1268.02 1371.44 14762.42 4715.04 50753.58 11120.38 119701.97
0.09 1347.27 1457.15 15685.07 5009.72 53925.68 11815.40 127183.35
0.09 1426.52 1542.87 16607.72 5304.41 57097.78 12510.43 134664.72
0.10 1505.77 1628.58 17530.37 5599.10 60269.88 13205.45 142146.09
0.10 1585.02 1714.30 18453.02 5893.79 63441.98 13900.47 149627.47
0.15 2377.53 2571.44 27679.53 8840.69 95162.96 20850.71 224441.20
0.20 3170.04 3428.59 36906.04 11787.59 126883.95 27800.95 299254.93
0.25 3962.55 4285.74 46132.55 14734.48 158604.94 34751.18 374068.67
0.30 4755.06 5142.89 55359.06 17681.38 190325.93 41701.42 448882.40
0.35 5547.57 6000.03 64585.57 20628.28 222046.91 48651.65 523696.14
0.40 6340.08 6857.18 73812.08 23575.18 253767.90 55601.89 598509.87
0.45 7132.59 7714.33 83038.59 26522.07 285488.89 62552.13 673323.60
0.50 7925.10 8571.48 92265.10 29468.97 317209.88 69502.36 748137.34

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: 20 June 2006