Appendix C - Geotech Email · RAL22/0021

Allister Gaffney

To:                                              Allister Gaffney
Subject:                                         RE: [#213029] Quote for slope stability report



From: Robert Gibb <[email protected]>
Sent: 14 February 2023 8:47 AM
To: Allister Gaffney <[email protected]>
Cc: Chris Camp <[email protected]>
Subject: RE: [#213029] Quote for slope stability report

Hi Allister,

As discussed on the phone, our recommendations intended that the vast majority of stormwater would go to the
street, given the height of the house – this seems to be what you have planned anyway.

For such ‘clean’ sands ranging fine to medium grained (as were logged at this site) a coefficient of permeability of 1
x 10 -4 m/s could be used for design. This is taken from Craigs Soil Mechanics, and is referenced further in there back
to BS8004.


Best Regards,

Robert



Robert Gibb
BSc (Hons)
Senior Engineering Geologist
Tectonic Geotechnical Pty Ltd
07 5478 9016
[email protected] www.tectonicgeo.com.au




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