Top Paddock Stage 6, Ascot

Top Paddock Stage 6, Ascot Earthworks Supervision Report for Yourland Developments Report 17C 0048 January, 2017 Top Paddock Stage 6 Ascot Earthworks Supervision Report for Yourland Developments Revision Revision Date Authorised 18C 0290 15/5/18 SEH Distribution (this revision only) Recipient Format Date GTSS On file 15/5/18 Yourland Developments Email PDF Contact: Scott Blair 15/5/18 [email protected] Sandhurst Geotech Pty Ltd, Trading as Geotechnical Testing Services – Southern. ABN: 18 169 924 109 ACN: 169 924 109 Email: [email protected]; Ph: 03 5441 4881; Fax: 03 5441 5089; Mail Address: PO Box 13, STRATHDALE, Vic, 3550 Offices: La Trobe University Applied Science 2 Building 7 Sharon Street, Flora Hill, VIC 3550; Shed 3, 140 Ogilvie Avenue, Echuca , VIC 3654, Geotechnical Investigations Contract Drilling Land Capability Assessments Contamination Assessments Compaction Control Testing On-site Wastewater Management Site Classifications Residential and Industrial Soil, Concrete and Aggregate Testing Laboratories Site Laboratory Construction Material Testing Services www.geotestsouthern.com.au TABLE OF CONTENTS 1 INTRODUCTION ......................................................................................................... 4 2 SCOPE OF WORKS .................................................................................................... 4 2.1 AREA OF WORK .................................................................................................. 4 2.2 PLACEMENT SPECIFICATION ........................................................................... 4 3 INSPECTION AND TESTING ...................................................................................... 5 4 SUMMARY OF TEST RESULTS ................................................................................. 5 5 STATEMENT OF COMPLIANCE ................................................................................ 6 APPENDIX Site Plan Test Reports Geotechnical Testing Services – Southern Page 3 Report: 18C 0290 Report 1 INTRODUCTION Yourland Developments commissioned Geotechnical Testing Services (GTS) to undertake Level 1 Supervision and testing (AS3798-2007) for the earthworks at the Top Paddock Stage 6, Ascot. Level 1 Testing was generally performed in line with AS3798-2007 “Guidelines on Earthworks for Commercial and Residential Development” and provides inspection of the construction of controlled fill and compaction testing in accordance with AS1289 “Methods of Testing Soils for Engineering Purposes”. The Level 1 testing was undertaken by Geotechnicians with supervision provided by a Geotechnical Engineer from GTS. 2 SCOPE OF WORKS 2.1 AREA OF WORK Geotechnical Testing Services provided Level 1 inspection and testing of the engineered fill placed across the Lots 601 to 628. The depth of fill across the site varied from 0.4 to 1.0 metres with the approximate location shown on the attached site plan. It is noted that the lot numbers of orientation/size of some were altered during the construction phase. 2.2 PLACEMENT SPECIFICATION Whilst there was no earthworks specification compiled for this project, the placement of the fill and associated works generally followed the recommendations outlined in AS3798-2007 “Guidelines for Earthworks for Commercial and Residential Developments” and the construction specification. In summary, the earthworks comply with the following: The layers for residential lots are to be compacted to at least 95% of the density ratio in accordance with AS1289 5.1.1 (or 5.7.1), based on Standard compaction. In accordance with Table 8.1 of AS3798-2007, the site would be considered large scale (greater than 1500m2) and therefore a minimum of 1 test per 2500m2 or 3 tests per visit are required. It is noted that with large scale areas, not every layer of each individual lot is required to be tested. Geotechnical Testing Services (Southern) Report: 18C 0290 Report Page 4 3 INSPECTION AND TESTING Inspection of the excavated bases were conducted by a Senior Geotechnical Engineer and it was observed that the unsuitable material (vegetation, top soil/silt) had been removed with the base consisting of a Silty Sandy Clay material of good strength. Level 1 inspection and testing was undertaken by a geotechnician from GTS who nominated the timing and location of the in-situ density tests. The approximate location of each test is recorded on the test reports and attached fill plan. Laboratory compaction testing was undertaken on a one to one basis at our Bendigo laboratory. A summary of the results of the compaction control testing is presented in a table below with the full NATA endorsed test reports included in the Appendix. 4 SUMMARY OF TEST RESULTS A summary of the test results is included in the following table with full NATA accredited reports included in the Appendix. As noted above, the lots changed during the construction phase so the original lot numbers which correspond to the test reports are included in brackets. Reduced Moisture Hilf Project No. Report No. Test Date. Location. Level Variation Density (mm) %O.M.C Ratio % 1 16B 1530H 19/12/16 Lot 603 (604) 300 1.0 dry 102.0 2 16B 1530I 19/12/16 Lot 604 (605) 300 0.5 dry 100.0 3 16B 1536A 20/12/16 Lot 614 (615) 300 1.5 dry 98.5 4 16B 1536B 20/12/16 Lot 615 (616) 300 3.0 dry 106.0 5 16B 1536C 20/12/16 Lot 617 (618) 300 2.0 dry 102.0 6 16B 1536D 20/12/16 Lot 618 (619) 300 2.5 dry 99.0 7 16B 1536E 20/12/16 Lot 619 (620) 300 1.5 dry 99.0 8 16B 1536F 20/12/16 Lot 620 (621) 300 2.0 dry 102.0 9 16B 1536G 20/12/16 Lot 621 (622) 300 2.0 dry 98.0 10 16B 1536H 20/12/16 Lot (622 (623) 300 2.5 dry 102.0 11 16B 1536I 20/12/16 Lot 623 (624) 300 1.5 dry 100.0 12 16B 1543D 22/12/16 Lot 605 (606) 300 0.5 dry 97.5 13 16B 1543E 22/12/16 Lot 606 (607) 300 0.0 98.0 14 16B 1543F 22/12/16 Lot 607 (608) 300 0.5 dry 97.5 15 16B 1543G 22/12/16 Lot 614 (615) 300 2.0 dry 100.5 16 17B 0043J 25/1/18 Lot 602 (603) 300 1.5 dry 95.0 17 17B 0043K 25/1/18 Lot 602 (602) 300 2.5 dry 92.0 Geotechnical Testing Services (Southern) Report: 18C 0290 Report Page 5 Reduced Moisture Hilf Project No. Report No. Test Date. Location. Level Variation Density (mm) %O.M.C Ratio % RT 17 17B 0120E 15/2/18 Lot 602 300 4.0 dry 95.0 18 B17-284A 20/9/17 Lot 601 FSL 0.5 dry 104.5 19 B17-284B 20/9/17 Lot 604 FSL 2.0 dry 105.0 20 B17-354A 3/10/17 Lot 609 300 3.0 dry 101.5 21 B17-354B 3/10/17 Lot 611 300 3.5 dry 99.0 22 B17-354C 3/10/17 Lot 613 300 2.5 dry 98.0 23 B17-354D 3/10/17 Lot 607 300 4.5 dry 104.0 24 B17-354E 3/10/17 Lot 605 FSL 4.0 dry 106.0 25 B17-354F 3/10/17 Lot 614 FSL 4.0 dry 104.5 26 B17-354G 3/10/17 Lot 616 FSL 2.5 dry 101.5 27 B17-354H 3/10/17 Lot 618 FSL 4.5 dry 101.5 28 B17-354I 3/10/17 Lot 620 FSL 3.0 dry 102.0 29 B17-354J 3/10/17 Lot 622 FSL 3.0 dry 100.5 30 B17-913A 21/12/17 Lot 612 FSL 2.0 dry 101.0 31 B17-913B 21/12/17 Lot 610 FSL 1.5 dry 101.5 32 B17-913C 21/12/17 Lot 613 FSL 2.0 dry 96.5 33 B18-976A 15/1/18 Lot 624 300 1.5 dry 99.0 34 B18-976B 15/1/18 Lot 625 300 0.5 dry 95.0 35 B18-976C 15/1/18 Lot 626 300 0.0 95.5 36 B18-976D 15/1/18 Lot 627 300 2.0 dry 98.5 37 B18-976E 15/1/18 Lot 628 300 0.5 wet 95.0 38 B18-1429A 10/4/18 Lot 624 FSL 1.5 dry 93.5 39 B18-1429B 10/4/18 Lot 626 FSL 2.0 dry 92.0 40 B18-1429C 10/4/18 Lot 628 FSL 0.5 dry 95.5 RT 38 B18-1444A 12/4/18 Lot 624 FSL 0.5 dry 102.0 RT 39 B18-1444B 12/4/18 Lot 626 FSL 0.5 dry 101.0 RT 40 B18-1444C 12/4/18 Lot 628 FSL 0.5 dry 100.5 5 STATEMENT OF COMPLIANCE GTS personnel have provided Level 1 inspection and testing services during the placement of material for the filling of Lots 601 to 628. The placement of fill and construction techniques adopted was observed throughout the project. Based on observations made by GTS personnel and the results of field and laboratory tests, we consider that the fill has been placed and compacted and is considered to be engineered or Geotechnical Testing Services (Southern) Report: 18C 0290 Report Page 6 controlled fill. Therefore, subject to residential site classifications, the controlled fill material is deemed a suitable founding medium for future residential buildings. It is noted that top soil material may be spread across the sites following completion of these earthworks and that this top soil material is not considered controlled fill. Shane Hampton (BE (Hons)) Senior Geotechnical Engineer Telephone: (03) 5441 4881 Mobile: 0437 496 215 Email: [email protected] Geotechnical Testing Services (Southern) Report: 18C 0290 Report Page 7 APPENDIX Geotechnical Testing Services (Southern) Report: 18C 0290 Report Page 8 11 10 29 9 8 33 28 38 7 34 35 6 27 39 5 36 37 40 26 4 30 25 15 3 32 22 21 12 13 23 31 24 14 20 2 17 19 18 1 16 Fig 1: Site Plan Geotechnical Testing Services – Southern Page 9 Report: 18C 0290 Report R53 Version: 02 April 2016 COMPACTION ASSESSMENT Nuclear Gauge Method Hilf (Wet) Density Ratio TEST REPORT: Client: YourLand Developments Report Nº: 16B1530 57 Queen Street Revision Nº: REV 0 BENDIGO Sheet: 3 of 4 VICTORIA 3350 Date of Report: 20/12/2016 Project: Top Paddock Estate, Ascot Location: House Blocks Test Request No / Lot No: * Layer Thickness: (mm) 300mm Depth Below FSL/CSL: 300mm Compaction Type: Standard Date Sampled: 19/12/2016 Sampling Method: AS1289.1.2.1 part 6.4b Material Description: 16B1530 /G Gravelly Clayey Silt, Brown 16B1530 /H Gravelly Clayey Silt, Brown 16B1530 /I Gravelly Clayey Silt, Brown 16B1530 /J Gravelly Clayey Silt, Brown Material Stabilised: No If Stabilised Time from * Stabilisation to Lab Test: Test Number: 16B1530G 16B1530H 16B1530I 16B1530J * * Hilf Density Ratio (%): 101.0 102.0 100.0 107.5 * * As Per: AS1289 5.7.1 5.8.1 Approved Signatory: B.P.Mott Print Date: 20/12/2016.

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