Geotechnical Level 1 Supervision Report Muller Street, Redland Bay.

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TGE15051-1 Geotechnical Level 1 Supervision Report Frostdale Civil Contractors 24/03/2015

1 TGE Geotechnical Level 1 Supervision Report Frostdale Civil Contractors 24/03/2015 TOTAL GEOTECHNICS Adelaide, Ballarat, Brisbane, Hallam, Hoppers Crossing, Traralgon, Warrnambool

2 Report No: TGE /03/2015 Contents 1. Introduction Scope of Works Inspections/Supervision Testing Conclusion Limitation of This Report... 5 Appendix 1 Site Plan... 6 Appendix 2 Testing Summary... 8 Appendix 3 Site Photographs Appendix 4 NATA Lab Results

3 Report No: TGE /03/ Introduction Total Geotechnics has been engaged by Frostdale Civil Contractors on the 1 st December 2014, to provide Level 1 Geotechnical Supervision on Muller Street, Redland Bay Project (Refer Appendix 1 Site Plans & Diagrams and Appendix 3 Site Photographs). This Level 1 report presents the results of supervision activities, compaction and moisture control, material placement and laboratory testing for ground works undertaken at Frostdale Civil Contractors. This report covers construction activities carried out from the 1 st December to 18 th December Scope of Works The scope of works involved the placement of On-site General Fill. Fill Material was placed in Level one fill areas, in accordance with AS , Guidelines on earthworks for commercial and residential developments. The level of FILL to be placed is less than 5m as per AS3798 Section 1.1. It has been a requirement of the Geotechnical testing Authority Total Geotechnics to follow Earthworks Guidelines and site plans specifications received by Frostdale Civil Contractors Pty Ltd. General fill material used for the construction was locally sourced on-site and predominantly comprising of Silt, Sand and Clay type material. 3. Inspections/Supervision Full time Level 1 supervision and inspection were undertaken between; 1 st December to 18 th December 2014 including supervision and inspections regarding the stripping and removal as per AS3798 Section 3 shall have removed: Organic soils, such as topsoils, severely root affected subsoils and peat; Contaminated soils is part of the brief; Materials which undergo volume change or loss of strength when disturbed and exposed to moisture; Silts, or materials that have deleterious engineering properties of silt; Other materials with properties that are unsuitable for the forming of structural fill; Fill that contains wood, metal plastic, boulders or other deleterious material, in sufficient proportions to affect the required performance of the fill. The maximum particle size of any rocks or other lumps, within the layer has not exceeded two thirds ( 2 / 3) of the compacted layer thickness. The lots inspected were essentially homogeneous in relation to material type and moisture condition, rolling response and compaction technique which has been used for the assessment of relative compaction of an area of work (AS3798 Section 1.2.8). 3

4 Report No: TGE /03/2015 Prior to placement any existing filled ground, for which the conditions of the placement are not adequately documented it has not been assumed to have been of either standard compaction or of the composition adequate to support fill and any material has been removed (AS3798 Section 2o). 4. Testing The project was classified as Residential Development for the purposes of AS (refer Table 5.1), thereby requiring a minimum compaction result of 95% Standard Compaction for the cohesive soils (AS & 5.1.1). AS further requires a minimum of 3 tests per day be undertaken throughout the placement of the fill (refer AS3798 Table 8.1) Tests were performed using a Nuclear Density Gauge for field density determination AS Testing was completed at a rate of 3 field density tests per day s production as based on the minimum requirements of AS and taken from each layer of fill placed. The filling operation was undertaken between 1 st December to 18 th December The material was Site-derived General Fill. Material was placed in approximately 300mm loose layers, rolling effort with on-site 825 Compactor (to seal of each layer of placed General Fill material) to a compacted 200mm layer that achieved 95% Standard Compaction which met Australian Standards specifications. This was considered the best method to achieve compaction using the plant and machinery available. A total of No.29 Field density and Laboratory Hilf Compaction tests were performed. The reports verify the achievement of the minimum density requirement of 95% Standard Compaction throughout the full depth area, with each layer tested accordingly. All test results were provided to our client Frostdale Civil Contractors for inclusion within their internal quality system (Refer to Appendix B Summary of Results). At the completion of the structural layers any material within 150mm of permanent subgrade level in cuttings was subjected to test rolling; test rolling was undertaken and the layers withstood test rolling without visible deformation or springing (AS 3798 Section 5.5). 4

5 Report No: TGE /03/2015 The lots that are covered by this Level 1 Supervision report are listed in the table below. Table 1 - Lots under Level 1 Supervision Lot,1 Lot,2 Lot,5 Lot,6 Lot,7 Lot,8 Lot,14 Lot,15 Lot,16 Lot,31 Lot,32 Lot,33 Lot,34 Lot,35 Road #1 Road #3 Bio Retention Basin Dam Wall 5. Conclusion On the completion of the earthworks and after analysing the materials used, it has been concluded that the filling procedure conducted by Frostdale Civil Contractors satisfied the requirements of AS 3798 in regards to the placement of fill materials on a project under Level 1 Supervision and in accordance with the specification as provided to Total Geotechnics. This report has been prepared for the benefit of our client with respect to the particular brief given to us and it may not be relied upon in other contexts or for any other purpose without our prior review and agreement. No responsibility for this report will be taken by Total Geotechnics if it is altered in any way, or not reproduced in full. 6. Limitation of This Report This Level 1 Report is valid for following completion of Level 1 Supervision. Total Geotechnics Pty Ltd does not accept responsibility for any distortion or deviations of measurements as reported at the given time. This report will be considered invalid if: Any works were conducted on site without the supervision of a Total Geotechnics Pty Ltd technician. Any other unforeseeable event and any event outside of time as described above. Prepared by: Authorised by: Albert Roelofs (Brisbane Laboratory Manager) Geotechnical Officer- Nata Accreditation Mob: Alvin Tan (BE Civil and Infrastructure) GradIEAust Geotechnical Engineer Mob:

6 Report No: TGE /03/2015 Appendix 1 Site Plan Level 1 Supervision 6

7 Report No: TGE /03/2015 Level 1 Supervision 7

8 Report No: TGE /03/2015 Appendix 2 Testing Summary Sample no. & Location Layer Material Type Date Tested Oversize (%) Density Ratio (%) Moisture Variation Remark Report no. RL: (%) Sample No. 26 Easting: RL: General Fill % 0.5% Report No. 26 Northing: Wetter Sample No. 27 Easting: RL: General Fill % 1% Report No. 26 Northing: Wetter Sample No. 28 Easting: RL: General Fill % 1% Report No. 26 Northing: Wetter Sample No. 29 Easting: RL: General Fill % 0.5% Report No. 27 Northing: Drier Sample No. 30 Easting: RL: General Fill % 2% Report No. 27 Northing: Drier Sample No. 31 Easting: RL: General Fill % 1% Report No. 27 Northing: Drier 8

9 Report No: TGE /03/2015 Sample no. & Location Layer Material Type Date Tested Oversize (%) Density Ratio (%) Moisture Variation Remark Report no. RL: (%) Sample No. 32 Easting: RL: General Fill % 1% Report No. 27 Northing: Wetter Sample No. 33 Easting: RL: General Fill % 0.5% Report No. 27 Northing: Drier Sample No. 48 Easting: RL: General Fill % 0% Report No. 31 Northing: OMC Sample No. 49 Easting: RL: General Fill % 0.5% Report No. 31 Northing: Drier Sample No. 50 Easting: RL: General Fill % 1.5% Report No. 31 Northing: Wetter Sample No. 62 Easting: RL: General Fill % 0% Report No. 35 Northing: OMC 9

10 Report No: TGE /03/2015 Sample no. & Location Layer Material Type Date Tested Oversize (%) Density Ratio (%) Moisture Variation Remark Report no. RL: (%) Sample No. 63 Easting: RL: General Fill % 0% Report No. 35 Northing: OMC Sample No. 64 Easting: RL: General Fill % 0.5% Report No. 35 Northing: Wetter Sample No. 90 Dam Wall, Centre of RL: General Fill % 0.5% Report No. 45 Wall. 3m East of Outlet Pipe Drier Sample No. 91 Easting: RL:21.33 General Fill % 0% Report No. 46 Northing: OMC Sample No. 92 Easting: RL:21.33 General Fill % 1% Report No. 46 Northing: Drier Sample No. 101 Sediment Basin RL: General Fill % 1% Report No. 50 Easting: Northing: Drier 10

11 Report No: TGE /03/2015 Sample no. & Report no. Location Layer Material Type Date Tested Oversize (%) Density Ratio (%) Moisture Variation Remark RL: (%) Sample No. 102 Easting: RL: General Fill %4 2% Report No. 50 Northing: Drier Sample No. 103 Easting: RL: General Fill % 1% Report No. 50 Northing: Drier Sample No. 104 Dam Wall Centre line RL:16.70 General Fill %1 1.5% Report No. 51 Sample No. 105 Of Wall. 30m West -Outlet Pipe Easting: Drier RL: General Fill % 1% Report No. 52 Northing: Wetter Sample No. 106 RL: General Fill % 0.5% Report No. 52 Sample No. 107 Easting: Northing: Wetter RL: General Fill % 1.5% Report No. 52 Easting: Northing: Wetter 11

12 Report No: TGE /03/2015 Sample no. & Location Layer Material Type Date Tested Oversize (%) Density Ratio (%) Moisture Variation Remark Report no. RL: (%) Sample No. 108 Dam Wall Centre of RL:16.99 General Fill % 1% Report No. 53 Wall. 25m North of Southern Wetter End Wall. Sample No. 121 Easting: RL:31.51 General Fill % 1% Report No. 64 Northing: Wetter Sample No. 122 Easting: RL:31.28 General Fill % 0.5% Report No. 64 Northing: Drier Sample No. 123 Easting: RL:31.65 General Fill % 0.5% Report No. 64 Northing: Wetter Sample No. 124 Dam Wall Centre Of RL:17.10 General Fill % 1.5% Report No. 65 Wall. 10m West- Out pipe Drier 12

13 Report No: TGE /03/2015 Sample no. & Report no. Location Layer RL: Material Type Date Tested Oversize (%) Density Ratio (%) Moisture Variation (%) Remark Sample No. 243 Lot,14 RL: General Fill % 0.5% Pass Report No. 111 Easting: Northing: Wetter Sample No. 244 Lot, 14 RL: General Fill % 0.0% Pass Report No. 111 Easting: Northing: OMC 13

Report No: TGE15051-1 20/03/2015 Appendix 3 Site

14 Report No: TGE /03/2015 Appendix 3 Site Photographs 01/12/2014. Picture no.1 Road #1, Stripped Surface of Top Soil & Organic Materials. 01/12/2014, Road #1, Lots 31,32,33,34 & 35. Stripping of Top Soil & Organic Materials. 14

15 Report No: TGE /03/ /12/2014. Lot 33, Removal of Tree Stump. 15

16 Report No: TGE /03/ /12/2014. Lot 33, Removal of Tree Stump. 10/12/2014. Stripping of Dam Wall. 16

17 Report No: TGE /03/ /12/2014. Dam Wall Proof Roll. 17

18 Report No: TGE /03/ /12/2014. Dam Wall Proof Roll. 12/03/2014. Compaction & Moisture Conditioning of Dam Wall Fill Materials 18

19 Report No: TGE /03/2015 Appendix 4 NATA Lab Results 19

21 TGE Geotechnical Level 1 Supervision Report Lot 28- Muller Street, Redland Bay. Frostdale Civil Contractors June 2015 TOTAL GEOTECHNICS Adelaide, Ballarat, Brisbane, Hallam, Hoppers Crossing, Traralgon, Warrnambool

22 Lot 28- Muller Street, Redland Bay. Report No: TGE June 2015 Contents 1. Introduction Scope of Works Inspections/Supervision Testing Conclusion Limitation of This Report... 5 Appendix 1 Site Plan... 6 Appendix 2 Testing Summary... 7 Appendix 3 Site Photographs... 8 Appendix 4 NATA Lab Results

23 Lot 28- Muller Street, Redland Bay. Report No: TGE June Introduction Total Geotechnics has been engaged by Frostdale Civil Contractors on the 26 th June 2015, to provide Level 1 Geotechnical Supervision on Lot 28- Muller Street, Redland Bay Project (Refer Appendix 1 Site Plans & Diagrams and Appendix 3 Site Photographs). This Level 1 report presents the results of supervision activities, compaction and moisture control, material placement and laboratory testing for ground works undertaken at Lot 28 previous Septic tank area. Removal size was approximately 5.5m in length, 4m in width and 2m in depth from existing surface by Frostdale Civil Contractors. This report covers construction activities carried out for one day s level one filling on the 26 th June Scope of Works The scope of works involved the placement of On-site General Fill. Fill Material was placed in Level one fill areas, in accordance with AS , Guidelines on earthworks for commercial and residential developments. The level of FILL to be placed is less than 5m as per AS3798 Section 1.1. It has been a requirement of the Geotechnical testing Authority Total Geotechnics to follow Earthworks Guidelines and site plans specifications received by Frostdale Civil Contractors Pty Ltd. General fill material used for the construction was locally sourced on-site and predominantly comprising of Silt, Sand and Clay type material. 3. Inspections/Supervision Full time Level 1 supervision and inspection were undertaken was; 26 th June 2015, including supervision and inspections regarding the stripping and removal as per AS3798 Section 3 shall have removed: Organic soils, such as topsoils, severely root affected subsoils and peat; Contaminated soils is part of the brief; Materials which undergo volume change or loss of strength when disturbed and exposed to moisture; Silts, or materials that have deleterious engineering properties of silt; Other materials with properties that are unsuitable for the forming of structural fill; Fill that contains wood, metal plastic, boulders or other deleterious material, in sufficient proportions to affect the required performance of the fill. The maximum particle size of any rocks or other lumps, within the layer has not exceeded two thirds ( 2 / 3) of the compacted layer thickness. 3

24 Lot 28- Muller Street, Redland Bay. Report No: TGE June 2015 The lots inspected were essentially homogeneous in relation to material type and moisture condition, rolling response and compaction technique which has been used for the assessment of relative compaction of an area of work (AS3798 Section 1.2.8). Prior to placement any existing filled ground, for which the conditions of the placement are not adequately documented it has not been assumed to have been of either standard compaction or of the composition adequate to support fill and any material has been removed (AS3798 Section 2o). 4. Testing The project was classified as Residential Development for the purposes of AS (refer Table 5.1), thereby requiring a minimum compaction result of 95% Standard Compaction for the cohesive soils (AS & 5.1.1). AS further requires a minimum of 3 tests per day be undertaken throughout the placement of the fill (refer AS3798 Table 8.1) Tests were performed using a Nuclear Density Gauge for field density determination AS Testing was completed at a rate of 3 field density tests per day s production as based on the minimum requirements of AS and taken from each layer of fill placed. The filling operation was undertaken on the 26 th June The material was Site-derived General Fill. Material was placed in approximately 300mm loose layers, rolling effort with on-site Compactor (to seal of each layer of placed General Fill material) to a compacted 200mm layer that achieved 95% Standard Compaction which met Australian Standards specifications. This was considered the best method to achieve compaction using the plant and machinery available. A total of No.3 Field density and Laboratory Hilf Compaction tests were performed. The reports verify the achievement of the minimum density requirement of 95% Standard Compaction throughout the full depth area, with each layer tested accordingly. All test results were provided to our client Frostdale Civil Contractors for inclusion within their internal quality system (Refer to Appendix B Summary of Results). At the completion of the structural layers any material within 150mm of permanent subgrade level in cuttings was subjected to test rolling; test rolling was undertaken and the layers withstood test rolling without visible deformation or springing (AS 3798 Section 5.5). 4

25 Lot 28- Muller Street, Redland Bay. Report No: TGE June 2015 The lots that are covered by this Level 1 Supervision report are listed in the table below. Table 1 - Lots under Level 1 Supervision Lot,28 5. Conclusion On the completion of the earthworks and after analysing the materials used, it has been concluded that the filling procedure conducted by Frostdale Civil Contractors satisfied the requirements of AS 3798 in regards to the placement of fill materials on a project under Level 1 Supervision and in accordance with the specification as provided to Total Geotechnics. This report has been prepared for the benefit of our client with respect to the particular brief given to us and it may not be relied upon in other contexts or for any other purpose without our prior review and agreement. No responsibility for this report will be taken by Total Geotechnics if it is altered in any way, or not reproduced in full. 6. Limitation of This Report This Level 1 Report is valid for following completion of Level 1 Supervision. Total Geotechnics Pty Ltd does not accept responsibility for any distortion or deviations of measurements as reported at the given time. This report will be considered invalid if: Any works were conducted on site without the supervision of a Total Geotechnics Pty Ltd technician. Any other unforeseeable event and any event outside of time as described above. Prepared by: Authorised by: Albert Roelofs (Brisbane Laboratory Manager) Geotechnical Officer- Nata Accreditation Mob: Alvin Tan (BE Civil and Infrastructure) GradIEAust Geotechnical Engineer Mob:

26 Lot 28- Muller Street, Redland Bay. Report No: TGE June 2015 Appendix 1 Site Plan Lot 28 Level 1 Supervision 6

27 Report No: TGE June 2015 Appendix 2 Testing Summary Sample no. & Location Layer Material Type Date Tested Oversize (%) Density Ratio (%) Moisture Variation Remark Report no. RL: (%) Sample No. 252 Report No m off West Boundary 2m off South Boundary RL:26.90 General Fill % 0.5% Wetter Sample No. 253 Report No m off West Boundary 1m off South Boundary RL:27.30 General Fill % 1.5% Wetter Sample No. 254 Report No m off West Boundary 3m off South Boundary RL:27.68 General Fill % 2% Wetter 7

Report No: TGE15051-2 June 2015 Appendix 3 Site Photographs

28 Report No: TGE June 2015 Appendix 3 Site Photographs Figure 1, Lot 28 Stripped surface of existing Septic Tank Area. 8

Report No: TGE15051-2 June 2015 Figure 2,

29 Report No: TGE June 2015 Figure 2, Lot 28 Stockpile of Level one fill material 9

30 Report No: TGE June 2015 Figure 3, Lot 28 Compacting fill layer 10

Report No: TGE15051-2 June 2015 Figure 4,

31 Report No: TGE June 2015 Figure 4, Lot 28 Compaction of Level one fill Material 11

32 Report No: TGE June 2015 Figure 5, Removal of Existing Roof water pipe. 12

Report No: TGE15051-2 June 2015 Figure 6, Lot 28

33 Report No: TGE June 2015 Figure 6, Lot 28 Stockpile of Uncontrolled materials and rubbish. 13

34 Report No: TGE June 2015 Appendix 4 NATA Lab Results 14

35 Report No: TGE June

REPORT ON LEVEL 1 EARTHWORKS INSPECTION AND TESTING

29 February 2016 Project No. SGS/16/005 REPORT ON LEVEL 1 EARTHWORKS INSPECTION AND TESTING PROJECT: DEVELOPER: DILGP ECONOMIC DEVELOPMENT QLD SUPERINTENDENT: CALIBRE CONSULTING (QLD) PTY LTD CONTRACTOR: