Upload
others
View
2
Download
0
Embed Size (px)
Citation preview
Senversa Pty Ltd
Level 6, 15 William Street, Melbourne, VIC 3000 ABN 89 132 231 380 www.senversa.com.au
M17985_002_RPT_Rev2 2 September 2020 Page 1 of 5 Commercial in Confidence
2 September 2020
AS Residential Property No.1 Pty Ltd C/- Anna Martiniello Senior Development Manager ISPT Operations Pty Ltd Level 11, 8 Exhibition Street Melbourne VIC 3000 [email protected]
Dear Anna,
Re: Assessment of Boundary Near Surface Soils 179-217 Centre Dandenong Road, Dingley Village, Victoria
Senversa Pty Ltd is pleased to provide AS Residential Property No.1 Pty Ltd (ASRP1) with this assessment of near surface soils around boundary of the former Kingswood Golf Course located at 179-217 Centre Dandenong Road, Dingley Village, Victoria (the Site).
1. Background and Objectives
Senversa undertook multiple environmental assessments at the former Kingswood Golf Course between 2015 and 2018 as a part of ASRP1’s proposed development of the Site. In late 2019 waste materials including asbestos containing materials (ACM) were identified as having been buried in the south east corner of the Site under and around trees. This uncontrolled waste was linked to the demolition of an adjacent off-site warehouse building and uncontrolled disposal of waste in this corner of the Site in the 1980s prior to ASRP1 purchasing the Site.
The discovery was made as a result of test pits excavations undertaken for the development of a cultural heritage management plan. Two soil and asbestos assessments of the area were undertaken by Prensa Pty Ltd in late 2019. These assessments provided recommended management measures for the waste material both in the short term and during development of the Site in the medium to longer term.
In order to progress the development of the Site, ASRP1 required an assessment of soil conditions around the boundary of the Site to assess whether other areas of the Site were likely to be impacted by uncontrolled waste.
Based on this background the objectives of this assessment were to:
• To assess near surface soils around the boundary the Site.
• Provide recommendations on the need for an environmental audit.
Assessment of Boundary Near Surface Soils 179-217 Centre Dandenong Road, Dingley Village, Victoria
M17985_002_RPT_Rev2 2 September 2020 Page 2 of 5
2. Scope of Works and Methodology
The scope of works consisted of the excavation and visual inspection (see photographs in Appendix A) of 32 targeted test pits near the boundary of the Site via hand tools and excavator over a two day period.
Details of these works and the methodology adopted are summarised in the table below.
Activity Item Description
Underground Service Clearance
Date 4 August 2020
Subcontractor Underground Services Detection (USD)
Method Prior to excavation of soils proposed investigation locations were cleared for the presence of underground services via the following methodology:
• Review of available service plans from the dial-before-you-dig online database.
• Inspection of the Site and immediate off-site areas for surface evidence and signage indicating utility locations and to confirm the presence and alignment of nearby and on-site sewerage infrastructure and underground services.
• Tracing of known and redundant (where possible) underground utilities by an experienced underground utility locator using radio detection equipment. Senversa supervised this activity and discussed the findings with the locator personnel.
Boundary Inspection & Test Pit Excavations
Date 4 – 5 August 2020
Subcontractor Kingston Plant Hire
Method The three Senversa field engineers traversed the entire boundary to identify places where either unusual mounding was present or trees that may allow the burying of waste material was present. Following this, Senversa excavated test pits in 32 locations which both targeted areas where potential uncontrolled waste may have been present and provided an assessment of conditions around the boundary of the Site. Senversa excavated 32 test pits by hand and backhoe; where anthropogenic material was discovered a backhoe was used to determine the extent of the area, with further hand dug test pits used to delineate the area. The locations of the test pits are shown in Figure 1. Excavated soils were visually inspected and documented, a general soil profile is shown below and photo logs are shown in Attachment A. All test pits were reinstated with excavated material flush to surface. Senversa discovered a small fragment of potential ACM on the surface of a bunker in the vicinity of TP28a. This fragment was couriered to ALS Laboratory for confirmation of the presence of asbestos.
Assessment of Boundary Near Surface Soils 179-217 Centre Dandenong Road, Dingley Village, Victoria
M17985_002_RPT_Rev2 2 September 2020 Page 3 of 5
3. Investigation Results
The soil profile was generally consistent across the Site, with the generalised soil profile provided below.
Depth (m bgl) Soil Type Description
0 to between 0.2 – 0.6
Fill (reworked natural silt and sands)
Silty Sand, dark grey, minor root matter, fine to medium grained, poorly sorted, angular, loose, moist.
0.2 – 0.6 to 0.7 – 1.5
Fill (reworked natural sands)
Sand, fine to coarse, poorly sorted, angular, medium dense, moist, varying in colour between pale greys and browns to dark greys and browns. Base of unit varying across Site.
0.7 and below (variable across Site)
Natural soil - Sands
Sand, fine to coarse, poorly sorted, angular, dense, pale yellow brown, moist. Becoming Clayey below 1.50m with an organic odour in some areas across Site.
1.5 to 1.7 (max) Natural soil – Clayey Sand
Clayey Sand, fine to coarse, poorly sorted, sub-angular sand with low plasticity clay. Dense, moist, dark grey to yellow brown.
The depth of the reworked material largely varied across the Site with respect to the topographic nature of the golf course. A denser, lighter coloured sand was encountered and easily distinguishable from the overlying fill material. The reworked material consists of aeolian sand deposits ranging in colours and grain sizes.
All locations where waste was encountered (TP01, TP26 and TP30), the waste was encountered in the upper 600mm of the excavation. Further hand-dug test pits excavations (denoted as A, B, C on Figure 1) delineated the extent of the encountered waste at each of these locations.
A fragment of suspected asbestos containing cement sheeting was also observed to be present on the surface of the bunker in the vicinity of TP28a (see Figure 1). The sample was sent away for laboratory analysis (see Attachment B) and was found to contain asbestos.
4. Discussion
Senversa excavated 32 test pits around the boundary of the Site with the locations shown on Figure 1. Of the 32 test pits 29 were found to contain no uncontrolled waste material. However, waste material was found in in the following areas:
• TP01 - Minor waste was encountered at the rear around the former clubhouse. The waste consisted of a hessian sack and was considered to be limited in extent due to delineation works undertaken. No ACM were identified.
• TP30 – Minor waste consisting of bricks and some glass bottles was encountered around a densely treed area in the middle of the Site. The waste was considered to be limited in extent due to delineation works undertaken. No ACM were identified.
• SE Corner of the site (Prensa Investigation Area, TP26 & TP28) - No further buried waste with or without ACM present was found to be present outside of the Prensa Investigation Area (shown in yellow on Figure 1). However, one fragment of cement sheeting confirmed to contain asbestos (see Photo 29 in Attachment A) was found at the surface approximately 100 m SW of the buried waste area at TP28 (still within the SE corner of the Site).
Assessment of Boundary Near Surface Soils 179-217 Centre Dandenong Road, Dingley Village, Victoria
M17985_002_RPT_Rev2 2 September 2020 Page 4 of 5
It is considered unlikely that further areas containing significant amounts of uncontrolled buried waste that could not be effectively managed as a part of a construction environmental management plan are present around the remainder of the Site. This is due to exploratory test pit investigations undertaken by Senversa (see Attachment A), the visual site inspection and previous investigations undertaken largely focused on the north and eastern boundaries of the Site (see Figure 1).
5. Conclusions and Recommendations
Based on review of historical aerial photographs, presence of vegetation and evidence of historical ground disturbance, Senversa targeted and assessed soils to a depth of approximately 1.5 m below ground at 32 locations around the boundary of the Site. Based on this assessment the following conclusions were drawn:
• No further buried waste with ACM present was found to be present outside of the PrensaInvestigation Area (shown in yellow on Figure 1). However, one fragment of cement sheetingconfirmed to contain asbestos (see Photo 29 in Attachment A) was found at the surfaceapproximately 100 m SW of the buried waste area at TP28 (still within the SE corner of the Site).
• Fill soils with a minor amount of non-hazardous waste present (bricks / hession bag) wereidentified at TP01 (behind former clubhouse) and at TP30 (middle of the site).
• 29 of the 32 targeted test pits did not encounter waste materials and no ACM was encounteredaway from the southern boundary in the SE corner of the site.
Based on this assessment the following recommendations are made:
• To ensure that risks associated with buried uncontrolled waste and ACM are suitably managed,ASPR1 could consider undertaking a statutory Section 53X Environmental Audit across areaswhere buried uncontrolled waste and ACM has been identified. An approximate 50 m bufferaround areas where ACM have been identified could also be considered. This would allow theaudit to further assess the extent of ACM that may have migrated from the buried waste area, viamowing or foot traffic. Figure 1 provides the potential extent of an environmental audit overlaywhich includes an approximate 50 m buffer.
• It is also recommended that quarterly inspections for surficial asbestos containing material beundertaken across the potential environmental audit overlay area in the SW corner of Site.
If you have any comments or questions, please do not hesitate to contact either of the undersigned on (03) 9606 0070.
Yours sincerely,
Carly Powell Christopher Sandiford Project Environmental Scientist Principal Environmental Scientist
CEnvP - Site Contamination Specialist (SC40061) CP/CS
Assessment of Boundary Near Surface Soils 179-217 Centre Dandenong Road, Dingley Village, Victoria
M17985_002_RPT_Rev2 2 September 2020 Page 5 of 5
Enclosures:
Figure 1: Investigation Location Plan Attachment A: Photo Log Attachment B: Laboratory Report
Technical Limitations and Uncertainty – This document was prepared to meet the objectives outlined in the Senversa proposal for the works. Additional investigations and information may improve the confidence or yield different results, due to a range of factors such as the variable or heterogeneous nature of environmental contaminants in the subsurface. Extreme care should be taken, and no warranty is provided, in the application of any costs or contingent liabilities derived using the data or conclusions within this report. The assessment is based on the condition of the site at the time of assessment. Reasonable care to avoid reliance upon data and information that may be inaccurate. Senversa’s conclusions presented in this report are therefore based on the information available during the assessment. Disclaimer - This document is confidential and has been prepared by Senversa for use only by its client and for the specific purpose described in our proposal which is subject to limitations. No party other than Senversa’s client may rely on this document without the prior written consent of Senversa, and no responsibility is accepted for any damages suffered by any third party arising from decisions or actions based on this document. Matters of possible interest to third parties may not have been specifically addressed for the purposes of preparing this document and the use of professional judgement for the purposes of Senversa’s work means that matters may have existed that would have been assessed differently on behalf of third parties. Senversa prepared this document in a manner consistent with the level of care and skill ordinarily exercised by members of Senversa’s profession practicing in the same locality under similar circumstances at the time the services were performed. Senversa requires that this document be considered only in its entirety, and reserves the right to amend this report if further information becomes available.
Assessment of Boundary Near Surface Soils 179-217 Centre Dandenong Road, Dingley Village, Victoria
M17985_002_RPT_Rev2 2 September 2020
Figure 1: Test Pit Locations and Potential Extent of Environmental Audit Overlay
Ad d re ss: P hone : We b site :
Le ve l 6, 15 William Stre e tMe lb ourne VIC 3000(03) 9606 0070 www.se nve rsa.com .au
De signe d :Drawn:Che cke d :File :
Date : Re vision: Scale : (A3)
P roje ct:
Figure No:
Location:
Clie nt:
Title:
SenvrSae
EDED
EDED
EDED
EDED
EDED
EDED
EDED
EDED
EDED
EDED
EDED
ED
ED
ED
ED
@A?@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
&<º
&<º
&<º
&<º
&<º
&<º
&<º
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
@A?
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
EDED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
ED
EDED
TP 10
TP 11
TP 13
TP 14
TP 15
TP 16
TP 17
TP 18
TP 19
TP 20
TP 21
TP 22
TP 23
TP 24
TP 25
TP 27
TP 28
TP 29
TP 30
TP 31
TP 32
TP 02
TP 03
TP 04
TP 05
TP 06
TP 07
TP 08
TP 09
TP 01b
TP 26a
TP 25b
TP 12a
TP 30e
TP 25a
TP 28a
TP 29a
TP 30d TP 30c
TP 12
TP 26TP 26b
TP 01TP 01a
TP 30a
TP 30b
CARUANADRIVE
WOLBERS ROAD
PICKW
ORTH
DRI
VE
FERNHILL
DRIVE
KUBIS
CRES
CENT
CENTRE DANDENONG ROAD
WYNDARRA CRESCENT
SHEL
FORD
GROV
E
MCCLURE ROAD
CAMPBELL GROVE
GOLFWOOD CLO
SE
CARDINALCOURT
SEATON DRIVE
KINGSMEADCOURT
TOORAK DRIVE
VERDANT PLACE
RYAN MEWS
HAMLET PLACE
CHIPP COURT
DOWNLAND
PLACE
ROOS
EVEL
TCO
URT
WAKEMANCOURT
TIMMS CRESCE
NT
UNNAMED
CHRIS
TINAT
ERRACE
ELY COURT
LEE-ANDY LANE
MARTENSPLACE
SADLER COURT
LAKELANDCOURT
BOGART CLOSE
MCGR
EGOR
COU
RT
MINJAH COURT
RUBY PLACE
GREENWOODS CLOSE
REX PLACE
DONNA CLOSE
AISHA CRESCENT
MARJORIE
AVENUE
RUDOLF COURT
SNEAD COURT
TARNOOK COURT
TOOT
AL RO
AD
LEE-ANDY COURT
DEBBIE COURT
LACKENHEA THCOUR T
WHEAT
LAND
CRES
CENT
NAMBROK CLOSELU
MEAH COURT
MANUELA COURT
SHARROCK DRIVE
VON NIDA COURT
CHALD
RON PL
ACE
CANNERY PLACE
MUNGARI STREET
JULIU
S AVE
NUE
KIMBER COURT
WILLY COURT
NEWBRIDGE C
LOSE
GREENVIE
W
CLOSE
SPRING ROAD
KATHRIN AVENUE
NICKSON CLOSE
HIGGINS
CLOSE
ProposedAudit Area
±
0 50 100 150 20025Me tre s
1:3,750
LegendED
Te st P it – No Uncontrolle d WasteP re se nt
ED Te st P it – Minor Waste P re se nt
EDTe st P it – Uncontrolle d WasteP re se nt
@A? P re vious Land fill Gas Bore Location
@A?P re vious Ground wate r MonitoringWe ll Location
&<º P re vious Soil Bore Location
ED P re vious Te st P it LocationSite Bound aryP re nsa Asb e stos Asse ssm e nt Are aP rop ose d Environm e ntal Aud itOve rlay Exte nt
Path: S:\01_Jobs\3.VIC_Jobs\M17985_ISPT_KINGSWOOD_EAO REVIEW\MXDs\1. Working MXDS\M17985_000_F001_Locations of Waste.mxd
Datum GDA 1994, P roje ction MGA Z one 55
P . Calcott 28/08/20200
Ae rial im age ry source d from Ne arm ap P ty Ltd
This
Draw
ing is
Sub
ject to
COP
YRIG
HT. N
o port
ion of
this
drawi
ng m
ay be
remo
ved,
extra
cted,
copie
d, ele
ctron
ically
stored
or di
ssem
inated
in an
y form
with
out th
e prio
r writt
en pe
rmiss
ion of
Sen
versa
.
Waste De line ation Asse ssm e nt
1
Ce ntre Dand e nong Road , Dingle y Village , VictoriaClie nt
Investigation Location Plan
M17985_000_F001_Locations of Waste
M. Byrne
.
Assessment of Boundary Near Surface Soils 179-217 Centre Dandenong Road, Dingley Village, Victoria
M17985_002_RPT_Rev2 2 September 2020
Attachment A: Photo Logs of Test Pit Excavations
Attachment A: Site Photographs
Att A - Site Photographs 1
Photo 1. Minor waste consisting of a hessian bag identified at TP01 near surface.
Photo 2. Soil profile above and beneath the root zone at TP01
Attachment A: Site Photographs
Att A - Site Photographs 2
Photo 3. Soil profile at TP01a. No evidence of waste material.
Photo 4. Soil profile at TP01b. No evidence of waste material.
Attachment A: Site Photographs
Att A - Site Photographs 3
Photo 5. Soil profile at TP02.
Photo 6. Brick fragments found at TP02.
Attachment A: Site Photographs
Att A - Site Photographs 4
Photo 7. Soil profile at TP03 including likely irrigation system.
Photo 8. Soil profile at TP03 including fill horizon.
Attachment A: Site Photographs
Att A - Site Photographs 5
Photo 9. Soil profile at TP05. No evidence of waste material.
Photo 10. Soil profile at TP07. No evidence of waste material.
Attachment A: Site Photographs
Att A - Site Photographs 6
Photo 11. Soil profile at TP10. No evidence of waste material.
Photo 12. Fill soils present at based of TP10.
Attachment A: Site Photographs
Att A - Site Photographs 7
Photo 13. Soil profile at TP12.
Photo 14. Fill soils encountered at TP12, but no evidence of uncontrolled waste.
Attachment A: Site Photographs
Att A - Site Photographs 8
Photo 15. Soil profile at TP12a. No evidence of waste material.
Photo 16. Soil profile at TP13. No evidence of waste material.
Attachment A: Site Photographs
Att A - Site Photographs 9
Photo 17. Soil profile at TP17.
Photo 18. Soil profile at TP19. No evidence of waste material.
Attachment A: Site Photographs
Att A - Site Photographs 10
Photo 19. Soil profile at TP 20. No evidence of waste material.
Photo 20. Soil profile at TP21. No evidence of waste.
Attachment A: Site Photographs
Att A - Site Photographs 11
Photo 21. Soil profile at TP22. No evidence of waste material.
Photo 22. Soil profile at TP24. No evidence of waste material.
Attachment A: Site Photographs
Att A - Site Photographs 12
Photo 23. Soil profile at TP25b. No evidence of waste material.
Photo 24. Evidence of uncontrolled waste material in TP26b.
Attachment A: Site Photographs
Att A - Site Photographs 13
Photo 25. Soil profile at TP26a. No evidence of waste material.
Photo 26. Soil profile at TP27. No evidence of waste material.
Attachment A: Site Photographs
Att A - Site Photographs 14
Photo 27. Soil profile at TP28.
Photo 28. Evidence of fill soils at TP28
Attachment A: Site Photographs
Att A - Site Photographs 15
Photo 29. Potential asbestos containing cement sheeting identified at TP28a at surface.
Photo 30. Soil profile at TP29. No evidence of waste material.
Attachment A: Site Photographs
Att A - Site Photographs 16
Photo 31. Soil profile at TP30.
Photo 32. Evidence of minor waste in fill soils at TP30.
Attachment A: Site Photographs
Att A - Site Photographs 17
Photo 33. Evidence minor waste in fill soils at TP30a.
Photo 34. Evidence minor waste in fill soils at TP30b
Attachment A: Site Photographs
Att A - Site Photographs 18
Photo 35. Soil profile at TP30c. No evidence of waste material.
Photo 36. Soil profile at TP31. No evidence of waste material.
Attachment A: Site Photographs
Att A - Site Photographs 19
Photo 37. Soil profile at TP32. No evidence of waste.
Assessment of Boundary Near Surface Soils 179-217 Centre Dandenong Road, Dingley Village, Victoria
M17985_002_RPT_Rev2 2 September 2020
Attachment B: Analytical Laboratory Report
0 0.00 True
Environmental
CERTIFICATE OF ANALYSISWork Order : Page : 1 of 3EM2013840
:: LaboratoryClient SENVERSA PTY LTD Environmental Division Melbourne
: :ContactContact MR CHRISTOPHER SANDIFORD Peter Ravlic
:: AddressAddress Level 6, 15 William St
Melbourne VICTORIA, AUSTRALIA 3000
4 Westall Rd Springvale VIC Australia 3171
:Telephone +61 03 9606 0070 :Telephone +6138549 9645
:Project M17985 Date Samples Received : 10-Aug-2020 13:30
:Order number ---- Date Analysis Commenced : 11-Aug-2020
:C-O-C number ---- Issue Date : 11-Aug-2020 21:48
Sampler : PC
Site : ----
Quote number : EN/103/18 (primary work only)
5:No. of samples received
1:No. of samples analysed
This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. This document shall not be reproduced, except in full.
This Certificate of Analysis contains the following information:
l General Comments
l Analytical Results
l Descriptive Results
Additional information pertinent to this report will be found in the following separate attachments: Quality Control Report, QA/QC Compliance Assessment to assist with
Quality Review and Sample Receipt Notification.
SignatoriesThis document has been electronically signed by the authorized signatories below. Electronic signing is carried out in compliance with procedures specified in 21 CFR Part 11.
Signatories Accreditation CategoryPosition
Uyen Dalkin Approved Asbestos Identifier Melbourne Asbestos, Springvale, VIC
R I G H T S O L U T I O N S | R I G H T P A R T N E R
2 of 3:Page
Work Order :
:Client
EM2013840
M17985:Project
SENVERSA PTY LTD
General Comments
The analytical procedures used by ALS have been developed from established internationally recognised procedures such as those published by the USEPA, APHA, AS and NEPM. In house developed procedures
are fully validated and are often at the client request.
Where moisture determination has been performed, results are reported on a dry weight basis.
Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis.
Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference.
When sampling time information is not provided by the client, sampling dates are shown without a time component. In these instances, the time component has been assumed by the laboratory for processing
purposes.
Where a result is required to meet compliance limits the associated uncertainty must be considered. Refer to the ALS Contact for details.
CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society.
LOR = Limit of reporting
^ = This result is computed from individual analyte detections at or above the level of reporting
ø = ALS is not NATA accredited for these tests.
~ = Indicates an estimated value.
Key :
EA200: Asbestos Identification Samples were analysed by Polarised Light Microscopy including dispersion staining.l
EA200 Legendl
EA200 'Am' Amosite (brown asbestos)l
EA200 'Cr' Crocidolite (blue asbestos)l
EA200 'Ch' Chrysotile (white asbestos)l
EA200: 'UMF' Unknown Mineral Fibres. "-" indicates fibres detected may or may not be asbestos fibres. Confirmation by alternative techniques is recommended.l
EA200: N/A - Not Applicablel
Analytical Results
----------------TP28a_surfaceClient sample IDSub-Matrix: SOLID
(Matrix: SOLID)
----------------10-Aug-2020 00:00Client sampling date / time
--------------------------------EM2013840-001UnitLORCAS NumberCompound
Result ---- ---- ---- ----
EA200: AS 4964 - 2004 Identification of Asbestos in bulk samples
YesAsbestos Detected ---- ---- ---- ----g/kg0.11332-21-4
ChAsbestos Type ---- ---- ---- -------1332-21-4
N/AAsbestos (Trace) ---- ---- ---- ----Fibres51332-21-4
20.6 ---- ---- ---- ----g0.01----Sample weight (dry)
No ---- ---- ---- ----g/kg0.1----Synthetic Mineral Fibre
No ---- ---- ---- ----g/kg0.1----Organic Fibre
U.DALKIN ---- ---- ---- -----------APPROVED IDENTIFIER:
3 of 3:Page
Work Order :
:Client
EM2013840
M17985:Project
SENVERSA PTY LTD
Analytical ResultsDescriptive Results
Sub-Matrix: SOLID
Analytical ResultsMethod: Compound Client sample ID - Client sampling date / time
EA200: AS 4964 - 2004 Identification of Asbestos in bulk samples
EA200: Description Asbestos sheeting fragments approx 45 x 36 x 5mm.TP28a_surface - 10-Aug-2020 00:00