220241.01 - 70 Blanckensee Road, BLACK MOUNTAIN - SECONDARY DWELLING - Slope Stability Report · EXE23/0033

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                                                                      3/53 Gateway Drive, Noosaville 4566
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PLEASE NOTE: This report does not address slope stability. If a slope stability analysis is re-
quired, the services of a suitably qualified geotechnical engineer should be sought. We can rec-
ommend one or organise this service on your behalf.
It is the designing engineer’s responsibility to address the potential influence of any trees present
on or around the proposed building site.

If any further fill is placed over the existing ground, the structure shall be piered through the fill
into the existing material. Further note that the placement of reactive material as fill, or cutting
of the site may change the site’s classification.


4. SOIL PROFILE
Refer to Soil Profile Report for borelog information.
Whilst every effort has been made to ensure that the borelogs carried out at the subject allotment are
indicative of the soil profile over the site any discrepancy between the profile detailed in the borelogs
and that observed during construction shall be referred to Global Testing for immediate attention.


5. MATERIALS LABORATORY TEST RESULTS
Soil Laboratory testing carried out on samples of the soil taken from the site gave the following results:
                    BOREHOLE                                                 BH1
                    DEPTH RANGE OF SAMPLE                                900-1100 mm
                    LIQUID LIMIT (%)                                          N/a
                    PLASTIC LIMIT (%)                                         N/a
                    PLASTIC INDEX (%)                                         N/a
                    LINEAR SHRINKAGE (%)                                      N/a
                    INSTABILITY INDEX (%)                                     N/a
                    SHRINK SWELL INDEX, Iss (%)                               3.6
                    PREDICTED SURFACE MOVEMENT                            30-40 mm


Please note that the Plasticity Index (PI) determined by the Atterberg Test may be correlated to an
Instability Index (Ips)with reference to the results of extensive testing carried out by others, notably, Dr
P Mitchell, ‘Footings for Small Scale Domestic Structures,’ March 1990.
 Yours Sincerely,




 (Luke Wade - Office Manager)




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