*Equipment: According to the ([phttps://www.edmonton.ca/public-files/assets/document?path=LID%20CIM%20Guide.pdf City of Edmonton, 2016])<ref> City of Edmonton. 2016. Low Impact Development Construction, Inspection & Maintenance Guide. Edition 1.0. https://www.edmonton.ca/public-files/assets/document?path=LID%20CIM%20Guide.pdf</ref>, tamp the permeable surface with a "low amplitude plate vibrator (22-kN) compaction force at 75 to 95 Hz".
*Equipment: According to the ([https://www.edmonton.ca/public-files/assets/document?path=LID%20CIM%20Guide.pdf City of Edmonton, 2016])<ref> City of Edmonton. 2016. Low Impact Development Construction, Inspection & Maintenance Guide. Edition 1.0. https://www.edmonton.ca/public-files/assets/document?path=LID%20CIM%20Guide.pdf</ref>, tamp the permeable surface with a "low amplitude plate vibrator (22-kN) compaction force at 75 to 95 Hz".