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135 Lake Weyba Rd Earthworks Certification L1
ABN 21 613397934 CQA Laboratory P.O. Box 1225, Nambour Qld 4560
6 Mill Lane Nambour
T/A Civil Quality Assurance Pty Ltd
For all Geotechnical Engineering and Civil Testing
Ph 0429 674 334
Servicing Australasia
Earthworks Certification
135 Lake Weyba Drive, Noosaville, Qld
Client: Andres Gabarrin
Testing Authority: Civil Quality Assurance Pty Ltd
Certification Authority: Lake Mac Geo Pty Ltd
Date: 1 March 2023
135 Lake Weyba Rd Earthworks Certification L1
March 23
1
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1 Introduction
Civil Quality Assurance (CQA) have been engaged by Andres Gabarrin (AG) to provide
Level 1 Geotechnical testing and inspection services, in accordance with AS 3798-2007
Guidelines on earthworks for commercial and residential developments and AS 2870-2011
Residential slabs and footings, at 135 Lake Weyba Drive, Noosaville, Queensland.
Up to 2.5m of Fill has been placed on the site by AG and tested by CQA at the following
locations:
o Lots 1, 2 and 4, 135 Lake Weyba Drive, Noosaville, Queensland
Note - Lot 3 was not filled
Test locations are shown in Appendix A.
2 Site Description
The site is located in a semi-rural area surrounded by residential developments and
uncleared and semi cleared bushland. The site is approximately rectangular as shown in
Appendix A. Prior to the works the site was a rural residential property comprising semi-
cleared bushland.
Up to 8,000m3 of fill material has been placed on the site by AG to a depth of up to 2.5m.
Lot 2 was filled with Clay Fill and Lots 1 and 4 with Sand Fill.
3 Fieldwork
21 in-situ density tests along with 7 accompanying laboratory Proctor standard compaction
tests and 14 Max Min Density Tests were undertaken on the site by CQA and in the CQA
Laboratory on 20 September 2022. Dry Density Ratio and Density Index Reports
compiled by Civil Quality Assurance Pty Ltd are detailed in Appendix B.
During the in-situ testing the earthworks surface was observed and seen to be free of
deleterious material.
The amount and frequency of testing is sufficient to comply with Level 1 supervision in
accordance with AS3798.
4 Test results
Lots 1 and 4 - Test results (Appendix B) indicate that the Sand fill has been compacted to
between 82 and 87.5% of Density Index.
Lot 2- Test results (Appendix B) indicate that the Clay fill has been compacted to between
97.5% and 99% of Standard Maximum Dry Density at a moisture content of 0% to -2.5%
of Optimum.
135 Lake Weyba Rd Earthworks Certification L1
March 23
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5 Conclusions
All test results indicate that the compaction requirements specified in Table 5.1 of AS3798
has been achieved for the fill placed by AG and tested by CQA.
Level 1 Supervision in accordance with AS 3798 has been undertaken on the following Site
areas:
o Lots 1, 2 and 4, 135 Lake Weyba Drive, Noosaville, Queensland
The fill placed on the site by AG in the areas detailed above may be considered ‘Controlled
Fill’ in accordance with AS2798.
Any other fill present on site shall be treated a ‘Uncontrolled Fill’ in accordance with AS2798
unless documentary evidence can be provided to the contrary.
This certification only provides an assurance of the density of the fill placed by AG and
tested by CQA. Where varying depths of fill are placed over unknown underlying materials,
differential consolidation is likely and should be considered during any overlying
construction.
Unless otherwise stated, this certification does not address any other issues which may be
relevant to foundation and building construction.
Report Prepared by:
Phil Band BEng MSc MIEAust CPEng NER AGS RPEQ 23841
135 Lake Weyba Rd Earthworks Certification L1
March 23
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Limitations
We have prepared this technical memorandum in substantial accordance with the
generally accepted engineering practices as they exist in the site area at the time of our
study. No warranty either express or implied is made.
It should be recognized that definition and evaluation of subsurface conditions are
difficult. Judgments leading to conclusions and recommendations are generally made
with incomplete knowledge of the subsurface conditions present due to the limitations
of data from field studies. The conclusions of this assessment are based on the
information made available to us by the client and engineering analyses.
This technical memorandum may be used only by the client and only for the purposes
stated, within a reasonable time from its issuance. Land use, site conditions (both on
site and off site) or other factors may change over time, and additional work may be
required with the passage of time. Any party other than the client who wishes to use
this technical memorandum shall notify CQA of such intended use. Based on the
intended use of the technical memorandum, CQA may require that additional work be
performed and that an updated memorandum be issued. Non-compliance with any of
these requirements by the client or anyone else will release CQA from any liability
resulting from the use of this report by any unauthorised party.
135 Lake Weyba Rd Earthworks Certification L1
March 23
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Appendix A 135 Lake Weyba Rd Earthworks Certification L1 March 23
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LEGEND NEW BOUNDARY NEW TOP OF EARTHWORKS NEW CONCRETE DRVEWAY NEW BITUMEN ROAD NEW GRAVEL FIRE TRAIL EXISTING BOUNDARY EXISTING CONTOUR wa e527 LOT 4 n=) sna LOT DETAIL COMET WOODATAN 0 7 2% 0 © tm LOT 2° eam) TRUNCATION AT FRONT OF LOT AS [REQUIRED BY ELECTRICAL DESION: be - a Tard 4 6 0 tm APPR Ke. aigst hocecte. MURRAY& ASSOCIATES eat WA GABARRIN & TO GABARRIN 35 LAKE WEYBA DRIVE PLAN OF DEVELOPMENT © 4% 4 LOT SUBDIVISION TAP DESCRIPTION LOTT RPOeTDD LOCAL AUTHORITY. NOOSA SHIRE COUNCE. APRON, ROLAPPROWAL — RALIROO4 Sl 1200 UN Al Braanghurber 17623-C001 On onru waKe4 258 Sree 20f6 [o"| omUM” pavssey ase
Page 7
Appendix B 135 Lake Weyba Rd Earthworks Certification L1 March 23
Page 8
NATA accredited facility no: 20064 PO Box 1225, Nambour QLD 4560
COA Laboratory
Mob 0429 674 334
a
NATA
seercorearon
COMPETENCE
Accrosie for compliance wit ISONEC 17025 TesSng
For All Civil Testing
Servicing South East Queensland
A.B.N. 2 1 339 7934
6 Mill Lane, Nambour Test Report
COA Laboratory Accredited for oa with ISO/IEC 17025 - testing
Project:_135 Lake Weyba Dr Requested By:_O/N
Noosaville Date: 20-9-22
Client: Andres Gabarrin Report No. 1210
Field Test Procedure: AS1289 5.3.1 soils compaction and density tests-determination of the field density ofa soil-sand replacement method
using a sand-cone pouring apparatus, AS1289 .1.2.1 Sampling and preparation of soils-disturbed samples-standard
method (6.4) Sampling from layers in earthworks or pavements(b) compacted
Laboratory Test Procedure AS1289 5.4.1 Soil compaction and density tests-compaction control test-dry density ratio, moisture variation and
moisture ratio, AS1289 5.1.1 (Soil compaction and density tests-determination of the dry density/moisture content of
a soil using standard compactive effort), AS1289 2.1.1 moisture content tests- determination of the moisture content
of a soil-oven drying method(standard method).
Over size sieve used (mm): 19.0
Was OMC & MDD assigned: No
Was assignment values used: No
‘Was the sample taken prior to compaction: No
Curing Time:- 24
Liquid limit determination: visual tactile assessment
Soil Description & Soil Layer thickness (m): Allotment Fill +0.5m
COMPACTION SPECIFICATION: 95% Standard Compaction
TEST RESULTS
Laboratory Number 1210.1 1210.2 1210.3 1210.4 1210.5
Location Lot2 Lot2 Lot2 Lot2 Lot2
Approx. See Site Plan See Site Plan See Site Plan See Site Plan See Site Plan
Elevation/layer depth Approx. Subgrade +0.5m +1.0m +1.5m +2.0m
Hole Depth (mm) 135 133 126 141 130
FIELD & LABORATORY DATA
Compacted Field Dry density (t/m3) 159 1.60 1.56 1.59 161
(nearest 0.01)
Field Moisture Content (%) 14.5 125 14.0 15.0 14.5
(nearest 0.5)
Mat. retained on oversize sieve (%) 0.0 0.0 0.0 0.0 0.0
Dry (nearest 1)
Mat. retained on oversize sieve (%) 0.0 0.0 0.0 0.0 0.0
Wet (nearest 1)
Max. Dry Density (t/m3) 161 1.63 1.61 1.63 1.63
({nearest0.01)
Adjusted Max. Dry Density (t/m3) n/a n/a n/a na n/a
(nearest 0.01)
Adjusted Max. Dry Density Laboratory | n/a n/a na n/a na
reference number
Optimum Moisture Content (%) 15.5 15.0 15.5 15.0 15.0
(nearest 0.5)
Moisture Ratio (%) 93.5 84.0 88.5 98.0 96.5
(nearest 0.5)
Variation of Optimum Moisture Content | -1.0dry -2.5dry -2.0dry ~O0.Sdry -0.Sdry
(%)
Density Ratio (%)
(uearest0.5) 99.0 98.0 97.0 97.5 98.5
Page 1 of 5 Tests and sampling results relate only to the items tested or sampled. results applies to the sample received/( abnormalities may
contribute to the report being compromised) Reports shall not be reproduced except in full
NATA Accredited Facility No. :- 20084 C T
ABN 21 61339 7934 CQA Laboratory Approved Person:
6 Mill Lane Nambour C. Templeton
Form R18 June 2021 Date: 28-2-23
Page 9
NATA accredited facility no: 20084 PO Box 1225, Nambour QLD 4560 COA Lanoretory Mob 0429 674 334 a NATA WwW ACCREDITED 702 TECHI COMPETE Accrectieg for compliance with ISONEC 17025 - Testng For All Civil Testing AB.N. 21 61 339 7934 Servicing South East Queensiand 6 Mill Lane, Nambour Test Report CQA eee Accredited for compres with ISOEC 17025 ~ = testing Project:_135 Lake Weyba Dr Requested By:_O/N Noosaville Date: 20-9-22 Client: Andres Gabarrin Report No. _ 1210 Field Test Procedure: AS1289 5.3.1 soils compaction and density tests-determination of the field density of a soil-sand replacement method using a sand-cone pouring apparatus, AS1289 .1.2.1 Sampling and preparation of soils-disturbed samples-standard method (6.4) Sampling from layers in earthworks or pavements(b) compacted Laboratory Test Procedure AS1289 5.4.1 Soil compaction and density tests-compaction control test-dry density ratio, moisture variation and moisture ratio, AS1289 5.1.1 (Soil compaction and density tests-determination of the dry density/moisture content of a soil using standard compactive effort), AS1289 2.1.1 moisture content tests- determination of the moisture content of a soil-oven drying method(standard method). Over size sieve used (mm): 19.0 Was OMC & MDD assigned: No Was assignment values used: No Was the sample taken prior to compaction: No Curing Time:- 24 Liquid limit determination: visual tactile assessment Soil Description & Soil Layer thickness (m): Allotment Fill +0.5m COMPACTION SPECIFICATION: 95% Standard Compaction TEST RESULTS Laboratory Number 1210.6 1210.7 Location Lot2 Lot2 Approx. See Site Plan See Site Plan Elevation/layer depth Approx. +2.5m F/L Hole Depth (mm) 125 129 FIELD & LABORATORY DATA Compacted Field Dry density (t/m3) 155 1.56 (nearest 0.01) Field Moisture Content (%) 14.0 14.5 (nearest 0.5) Mat. retained on oversize sieve (%) 0.0 0.0 Dry (nearest 1) Mat. retained on oversize sieve (%) 0.0 0.0 Wet (nearest 1) Max. Dry Density (t/m3) 1.58 1.59 nearest 0.01) Adjusted Max. Dry Density (t/m3) na na ‘nearest 0.01) Adjusted Max, Dry Density Laboratory n/a wa reference number Optimum Moisture Content (%) 15.5 14.5 (nearest 0.5) Moisture Ratio (%) 91.0 101.5 (nearest 0.5) Variation of Optimum Moisture Content | -1.Sdry 0.0 (%) Density Ratio (%) Spear 97.5 98.0 Page 2 of 5 Tests and sampling results relate only to the items tested or sampled. results applies to the sample received/( abnormalities may contribute to the report being compromised) Reports shall not be reproduced except in full ot _: NATA Accredited Facility No. :- 20084 eC at WF ABN 21 61339 7934 CQA Laboratory Approved Person: 6 Mill Lane Nambour C. Templeton Form R18 June 2021 Date: 28-2-23
Page 10
NATA acerediled faciity no: 20064 PO Box 1225, Nambour QLD 4560 - Mob 0429 674 334 a NATA Ww TECHNICAL COMPETENCE ‘Accrectieg for compliance wth ISONEC 17025 - Testing For All Civil Testing A.B.N. 21 61 339 7934 : 6 Mill Lane. Nambour Test Report Servicing South East Queensland CQA Laboratory Accredited for compliance with ISOMEC 17025 - testing Density Index method for a cohesionless material Project:_135 Lake Weyba Dr Requested By:_O/N Noosaville Date: 20-9-22 Client: _Andres Gabarrin Report No. 1210 Field Test Procedure: AS1289 5.3.1 (Soils compaction and density test-determination of the field density of a soil-sand replacement method using a sand cone pouring apparatus) AS1289 1.2.1 sampling and preparation of soils-disturbed samples-standard method (6.4) sampling from layers in earthworks or pavement (b) compacted Laboratory Test Procedure AS1289 5.6.1 Soil compaction and density tests-compaction control test-density index method for a cohesionless material, AS1289 5.5.1 Determination of the min. and max. dry density of a cohesionless matcrial-standard method, AS1289 2.1.1 Soil moisture content tests-determination of the moisture content of a soil-oven drying method(standard method) Maximum particle size (mm) 4.75 Nominal mould size used (ml): 1000 Was OMC & MDD assigned: No Was assignment values used: No Soil Description & Soil Layer Thickness Allotment Fill +0.5m COMPACTION SPECIFICATION: 80% Compaction Ratio TEST RESULTS Laboratory Number 1210.8 1210.9 1210.10 1210.11 1210.12 Location Lot 4 Lot 4 Lot 4 Lot 4 Lot 4 See site Plan | Seesite Plan | Seesite Plan | See site Plan | See site Plan Elevation/layer depth S/G +0.5m +1.0m +1.5m +2.0m Hole Depth (mm) 129 131 130 135 134 FIELD & LABORATORY DATA Field Dry Density (t/m3) 1.56 1.56 1.54 1.56 1.55 (nearest 0.01) Field Moisture Content (%) 9.5 9.0 8.5 8.5 25 (nearest 0.5) Maximum Dry Density (t/m3) 1.61 1.61 L357 1.60 1.58 (nearest 0.01) Minimum Dry Density (t/m3) 1.35 1.36 1.35 1.31 L335 (nearest 0.01) Density Index (%) |85.0 |82.0 |87.5 |87.0 |86.5 (nearest 0.1 statistical analysis) (nearest 1 for all other results) Page 3 of 5 Tests and sampling results relate only to the items tested or sampled. results applies to the sample received/( abnormalities may contribute to the report being compromised) Reports shall not be reproduced except in full CQA Laboratory a NATA Accredited Facility No. :- 20084 Cz a /: tt—— ABN 21 61339 7934 Approved Person: 6 Mill Lane Nambour C. Templeton Date: 22-2-23 Form R17 July 2021
Page 11
NATA acoredited facility no: 20084
CQA Laboratory
PO Box 1225, Nambour QLD 4560
Mob 0429 674 334
a
NATA
Ww
AccaeprTED For
COMPETENCE
Accredited for compiance with iSONEC 17025 - Testing
For All Civil Testing
Servicing South East Queensland
Civil QUALITY AS Py
ABN. 21 61 339 7934
6 Mill Lane, Nambour Test Report
CQA Laboratory Accredited for compliance with ISO/IEC 17025 - testing
Project:_135 Lake Weyba Dr Requested By:_O/N
Noosaville Date: 20-9-22
Client: _Andres Gabarrin Report No. 1210
Field Test Procedure: AS1289 5.3.1 (Soils compaction and density test-determination of the field density of a soil-sand replacement method
using a sand cone pouring apparatus) AS1289 1.2.1 sampling and preparation of soils-disturbed samples-standard
method (6.4) sampling from layers in earthworks or pavement (b) compacted
Laboratory Test Procedure AS1289 5.6.1 Soil compaction and density tests-compaction control test-density index method for a cohesionless
material, AS1289 5.5.1 Determination of the min. and max. dry density of a cohesionless material-standard method,
AS1289 2.1.1 Soil moisture content tests-determination of the moisture content of a soil-oven drying method(standard
method)
Maximum particle size (mm) 475
Nominal mould size used (ml): 1000
Was OMC & MDD assigned: No
Was assignment values used: No
Soil Description & Soil Layer Thickness Allotment Fill +0.5m
COMPACTION SPECIFICATION: 80% Compaction Ratio
TEST RESULTS
Laboratory Number 1210.13 1210.14 1210.15 1210.16 1210.17
Location Lot 4 Lot 4 Lot L Lot 1 Lot 1
See site Plan | Seesite Plan | SeesitePlan | Seesite Plan | See site Plan
Elevation/layer depth +2.5m F/L Natural +0.5m +1.0m
Hole Depth (mm) 142 149 152 156 158
FIELD & LABORATORY DATA
Field Dry Density (vm3) 1.55 1.56 1.57 1.59 1.54
(nearest 0.01) :
Field Moisture Content (%) 10.5 9.5 9.0 9.5 8.0
(nearest 0.5)
Maximum Dry Density (t/m3) 1.56 1.60 1.60 1.60 1.56
(nearest 0.01)
Minimum Dry Density (t/m3) 13.1 1.33 131 1.33 1.33
(nearest 0.01)
Density Index (%) :
(abnrsee 0.1 shathetical sinipiba) 94.0 88.5 92.5 95.0 91.5
(nearest 1 for all other results)
P age 4 of 5 Tests and sampling results relate only to the items tested or sampled. results applies to the sample received/( abnormalities may
contribute to the report being compromised) Reports shall not be reproduced except in full
CQA Laboratory yt
NATA Accredited Facility No. :- 20084
ABN 21 61339 7934 - Approved Person: C.7 —_—
6 Mill Lane Nambour C. Templeton
Date: 22-2-23
Form R17 July 2021
Page 12
NATA acereited faci fy net 20088 PO Box 1225, Nambour QLD 4560
e Mob 0429 674 334
a
NATA
Ww
TECHNICAL
COMPETENCE
‘Acerectied fer compliance with iSOMEC 17025 - Testing
QUALITY AS TA For All Civil Testing
A.B.N. 21 61 339 7934 eae
6 Milaané. Narwoue Test Report Servicing South East Queensland
CQA Laboratory Accredited for compliance with ISOMEC 17025 - testing
Project:_135 Lake Weyba Dr Requested By:_O/N
Noosaville Date: 20-9-22
Client: _Andres Gabarrin Report No. 1210
Field Test Procedure: AS1289 5.3.1 (Soils compaction and density test-determination of the field density of a soil-sand replacement method
using a sand cone pouring apparatus) AS1289 1.2.1 sampling and preparation of soils-disturbed samples-standard
method (6.4) sampling from layers in earthworks or pavement (b) compacted
Laboratory Test Procedure AS1289 5.6.1 Soil compaction and density tests-compaction control test-density index method for a cohesionless
material, AS1289 5.5.1 Determination of the min. and max. dry density of a cohesionless material-standard method,
AS1289 2.1.1 Soil moisture content tests-determination of the moisture content of a soil-oven drying method(standard
method)
Maximum particle size (mm) 4.75
Nominal mould size used (ml): 1000
Was OMC & MDD assigned: No
Was assignment values used: No
Soil Description & Soil Layer Thickness Allotment Fill +0.5m
COMPACTION SPECIFICATION: 80% Compaction Ratio
TEST RESULTS
Laboratory Number 1210.18 1210.19 1210.20 1210.21
Location Lot 1 Lot 1 Lot 1 Lot 1
See site Plan | See site Plan | Seesite Plan | See site Plan
Elevation/layer depth +1.5m +2.0m +2.5m F/L
Hole Depth (mm) 132 133 125 129
FIELD & LABORATORY DATA
Field Dry Density (m3) 1.56 1.57 1.57 1.57
(nearest 0.01)
Field Moisture Content (%) 10.0 95 9.0 10.0
(nearest 0.5)
Maximum Dry Density (t/m3) 1.60 1.60 1.60 1.61
(nearest 0.01)
Minimum Dry Density (t/m3) 1.30 131 1.31 133
(nearest 0.01)
penay eae) | 89.5 90.5 91.0 89.0
(nearest 0.1 statistical analysis)
(nearest 1 for all other results)
Page 5 of 5 Tests and sampling results relate only to the items tested or sampled. results applies to the sample received abnormalities may
contribute to the report being compromised) Reports shall not be reproduced except in full
CQA Laboratory
NATA Accredited Facility No. :- 20084 C ty
ABN 21 61339 7934 Approved Person: =
6 Mill Lane Nambour C. Templeton
Date: 22-2-23
Form R17 July 2021