Slope Stability Report-21190-001-Rev0 Pomona Kin Kin Rd

Phil Brierley                                                                                     21190-001-Rev0
C/- NDD Constructions Pty Ltd                                                                        21 June 2021

2.0        DESCRIPTION OF EXISTING CONDITIONS
2.1       Geology
A published geological map for the region 1 indicates that the site is underlain by the early Triassic age Kin
Kin Beds comprising ‘arenite, argillite and phyllite’. An extract from the relevant geological map is provided
in Text Figure 3 below.




                                             Indicative Site Location




Text Figure 3: Extract from Nambour Special Geology Map
At the time of the assessment, the shed cutting ranged up to about 3 m deep and typically exposed varying
very low to medium strength argillite. Cuttings along the existing driveway adjacent to the existing residence
also primarily exposed extremely weathered (XW) materials and very low to medium strength
argillite/phyllite.




Text Figure 4: Cutting on upslope side of shed platform (LHS) and along existing driveway (RHS)
To make an appraisal of the strength of the materials at the proposed shed site, Tectonic undertook four
standalone dynamic cone penetrometer (DCP) tests (designated DCP1 to DCP4). DCP1 to DCP3 were
undertaken along the crest of the existing fill platform working from south-east to north-west.




1
    1:100,000 Gympie Special Geology Map, Sheet 9445 & Part 9545, DME, 1999




                                                                3/12