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Vegetated Filter Strip System Design Manual
Design Tables

Author: Robert P. Stone, P. Eng., Engineer, Soil/OMAFRA
Creation Date: 04 July 2005
Last Reviewed: 20 June 2006
| Introduction and Background | General Design Guidance for VFS System Components |
| Design Guidelines of VFS System Components |
| Design Guide | Case Studies | Design Tables | Appendix |
Table 6.2 Minimum Storage Settling Volume Required (m3) and Peak Discharge Rate (m3/s) Using Rational Method 25-year, 5-minute Peak Discharge Rate
Area of Runoff Collection Area
(ft2)		Owen SoundStratford MOEBrantford MOEGuelph Arboretum
Storage Volume
(gal)		Peak Discharge Rate
(gal/min)		Storage Volume
(gal)		Peak Discharge Rate
(gal/min)		Storage Volume
(gal)		Peak Discharge Rate
(gal/min)		Storage Volume
(gal)		Peak Discharge Rate
(gal/min)
10761171.5078.101053.1970.21974.5264.971134.9175.66
21532342.99156.202106.38140.431949.04129.942269.81151.32
32293514.49234.303159.56210.642923.56194.903404.72226.98
43064685.98312.404212.75280.853898.07259.874539.62302.64
53825857.48390.505265.94351.064872.59324.845674.53378.30
64597028.97468.606319.13421.285847.11389.816809.43453.96
75358200.47546.707372.31491.496821.63454.787944.34529.62
86119371.97624.808425.50561.707796.15519.749079.24605.28
968810543.46702.909478.69631.918770.67584.7110214.15680.94
1076411714.96781.0010531.88702.139745.19649.6811349.06756.60
1614617572.441171.5015797.811053.1914617.78974.5217023.581134.91
2152923429.921561.9921063.751404.2519490.371299.3622698.111513.21
2691129287.401952.4926329.691755.3124362.971624.2028372.641891.51
3229335144.872342.9931595.632106.3829235.561949.0434047.172269.81
3767541002.352733.4936861.562457.4434108.152273.8839721.702648.11
4305746859.833123.9942127.502808.5038980.752598.7245396.223026.41
4843952717.313514.4947393.443159.5643853.342923.5651070.753404.72
5382158574.793904.9952659.383510.6348725.933248.4056745.283783.02
5920364432.274295.4857925.313861.6953598.533573.2462419.814161.32
6458670289.754685.9863191.254212.7558471.123898.0768094.344539.62
6996876147.235076.4868457.194563.8163343.714222.9173768.874917.92
7535082004.715466.9873723.134914.8868216.304547.7579443.395296.23
8073287862.195857.4878989.075265.9473088.904872.5985117.925674.53
8611493719.666247.9884255.005617.0077961.495197.4390792.456052.83
9149699577.146638.4889520.945968.0682834.085522.2796466.986431.13
96878105434.627028.9794786.886319.1387706.685847.11102141.516809.43
102260111292.107419.47100052.826670.1992579.276171.95107816.037187.74
107642117149.587809.97105318.757021.2597451.866496.79113490.567566.04
161464175724.3711714.96157978.1310531.88146177.809745.19170235.8411349.06
215285234299.1615619.94210637.5114042.50194903.7312993.58226981.1215132.07
269107292873.9519524.93263296.8917553.13243629.6616241.98283726.4118915.09
322928351448.7423429.92315956.2621063.75292355.5919490.37340471.6922698.11
376749410023.5327334.90368615.6424574.38341081.5222738.77397216.9726481.13
430571468598.3231239.89421275.0228085.00389807.4625987.16453962.2530264.15
484392527173.1135144.87473934.3931595.63438533.3929235.56510707.5334047.17
538213585747.9139049.86526593.7735106.25487259.3232483.95567452.8137830.19

* Storage/settling volume calculated using 25-year/5-minute storm event rainfall amounts over a 15-minute retention period for selected Ontario centres obtained from Atmospheric Environment Service, Environment Canada "Rainfall Intensity-Duration Frequency (IDF) Data."
Runoff coefficient of 95 percent has been used, meaning that 95 per cent of the rainfall entering the runoff collection area can be expected to enter the VFS system.

Back to Chapter 6 - Table of Contents

| Introduction and Background | General Design Guidance for VFS System Components |
| Design Guidelines of VFS System Components |
| Design Guide | Case Studies | Design Tables | Appendix |

 

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