Line 30:
Line 30:
==Design==
==Design==
===Geometry and Site Layout===
===Geometry and Site Layout===
−
Gravel beds in which exfiltration systems are installed are typically rectangular excavations with a bottom width between 0.6 and 2.4 m <ref>Greater Vancouver Regional District. 2005. Stormwater Source Control Design
+
*Gravel beds in which exfiltration systems are installed are typically rectangular excavations with a bottom width between 0.6 and 2.4 m <ref>Greater Vancouver Regional District. 2005. Stormwater Source Control Design
Guidelines 2005. Prepared by Lanarc Consultants Limited, Kerr Wood Leidal Associates Limited and Goya Ngan</ref>.
Guidelines 2005. Prepared by Lanarc Consultants Limited, Kerr Wood Leidal Associates Limited and Goya Ngan</ref>.
+
*The gravel beds should have gentle slopes between 0.5 - 1%.
+
*'''[[Maximum flow rate through perforated pipe]]'''
−
The gravel beds should have gentle slopes between 0.5 - 1%.
==Materials==
==Materials==
{{:Reservoir aggregate}}
{{:Reservoir aggregate}}