Phase I & II Environmental Site Assessment
Part of Lot A on Plan PS540915K, Corio AE2711-R01
Document
Title: / Phase I & II Environmental Site Assessment – Part of Lot A on Plan PS540915KReport Number: / AE2711-R01
Last Printed: / 14/11/2012 12:47 PM
Document File Name: / Z:\2700's\AE2711 270 Bacchus Marsh Rd, Corio\Documents\Reports\AE2711-R01.docx
Job Manager: / Stephen Poiesz
Document Issues
Issue(Draft / Final) / Revision / Copy / Issued To / Date / Signed / Reviewed
Final / 0 / 1 / Robert Luxmoore Pty Ltd / 11/11/11 / SJJP / BJT
Amendments
Revision / Date / Signed / Reviewed / Amendments·
·
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Reference: Z:\2700's\AE2711 270 Bacchus Marsh Rd, Corio\Documents\Reports\AE2711-R01.docx Page | v
Revision: 0
Date: November 2012
Phase I & II Environmental Site Assessment
Part of Lot A on Plan PS540915K, Corio AE2711-R01
Alpha Environmental Report Conditions
Reference: Z:\2700's\AE2711 270 Bacchus Marsh Rd, Corio\Documents\Reports\AE2711-R01.docx Page | v
Revision: 0
Date: November 2012
Phase I & II Environmental Site Assessment
Part of Lot A on Plan PS540915K, Corio AE2711-R01
1. Alpha Environmental has prepared this report for the purposes stated herein. We do not accept responsibility for the consequences of extrapolation, extension or transference of the findings and recommendations of this report to different sites, cases or conditions.
2. This report is based in part on information which was provided to us by the client and/or others and which is not under our control. We do not warrant or guarantee the accuracy of this information.
3. We believe the conclusions and recommendations contained herein were reasonable and appropriate at the time of issue of the report. However, the user is cautioned that fundamental input assumptions upon which this report is based may change with time. It is the user’s responsibility to ensure that input assumptions remain valid.
4. This report must be read in its entirety. This notice constitutes an integral part of the report, and must be reproduced with every copy.
5. This report is prepared solely for the use of the person or company to whom it is addressed. No responsibility or liability to any third party is accepted for any damages howsoever arising out of the use of this report by any third party.
6. Unless specifically agreed otherwise in the contract of engagement, Alpha Environmental retains Intellectual Property Rights over the contents of this report. The client is granted a licence to use the report for the purposes for which it was commissioned.
7. Due to the ease of data manipulation of electronic formats, Alpha Environmental does not warrant or guarantee the accuracy or completeness of any electronic report following its release by Alpha Environmental.
8. Environmental Site Assessments necessarily involved the assessment of subsurface conditions at a relatively few locations, and the interpretation and extrapolation of those conditions to elsewhere on the site, not so covered by the assessment. This procedure has been adopted at the site that is the subject of this report in accordance with methodologies stated in Australian Standards AS4482.1 – 2005 and AS4482.2 – 1999, all due care and skill has been applied by Alpha Environmental in carrying out and reporting on the work. Thus the findings, conclusions and comments contained in this report represent professional estimates and opinions and are not to be read as facts unless the context makes it clear to the contrary. In general, statements of fact are confined to statements as to what was done and/or what was observed. Other statements have been based on professional judgement.
9. The scope of the work has been planned in the absence of any foreknowledge of the site other than that stated in the report. Unless otherwise stated Alpha Environmental considers that the number or locations and the depths to which they have been assessed are reasonable bearing in mind the scale and nature of the project, and the defined purpose for which the assessment was undertaken.
10. We do not accept any responsibility for any variance between the interpreted and extrapolated conditions and those that are revealed by any means subsequently. Specific warning is also given that many factors, either natural or artificial, may render ground conditions different from those that pertained at the time of the assessment. Should there be revealed during further works on-site or at any other time any apparent difference from the subsurface conditions described or assessed in this report, it is strongly recommended that such differences be brought to Alpha Environmental’s attention so that its significance may be assessed and appropriate advice given.
Reference: Z:\2700's\AE2711 270 Bacchus Marsh Rd, Corio\Documents\Reports\AE2711-R01.docx Page | v
Revision: 0
Date: November 2012
Phase I & II Environmental Site Assessment
Part of Lot A on Plan PS540915K, Corio AE2711-R01
Executive Summary
Site Summary
Site Address / Part of Lot A on Plan PS540915K, Browallia Drive, CorioMelway Reference (Edition 36) / 432 B4
Site Area / ~5.4 hectares
Title / Volume 11008 Folio 027
Parish / Moranghurk County
Proprietor / L. Bisinella Developments Pty Ltd
Zoning / Residential 1 Zone (R1Z)
Schedule to the Residential 1 Zone
Overlays / Design and Development Overlay (DDO)
Environmental Significance Overlay (ESO)
Public Acquisition Overlay (PAO)
Municipality / Greater Geelong
Current Use / Vacant Land
EPA Priority Site / No
EPA Priority Site (In the vicinity) / No
General
Alpha Environmental was contracted by Mr Hamish Guthrie of Robert Luxmoore Pty Ltd on behalf of Hydrox Nominees Pty Ltd (the client) to conduct a Phase I & II Environmental Site Assessment (ESA) at part of Lot A on Plan PS540915K, Browallia Drive, Corio (the site), to assess the historical uses of the site and surrounding areas to obtain an understanding of soil and potential groundwater contamination at the site, and to conduct a soil sampling event which characterises the contamination of soils at the site.
Scope of Works
· Detailed Phase I site history review;
· Identification of potential contaminants of concern sourced from both on-site and off-site; and
· Phase II Environmental Site Assessment (Soil Sampling).
Site Definition
The site is defined as the western half of Lot A on Plan PS540915K, Browallia Drive, Corio and covered by title Volume 11008 Folio 027. The site is approximately 5.4 Hectares in area. The general shape of the site can be described as rectangular and is orientated in a north/south direction. The site is located on the south eastern corner of the intersection between the Geelong Bypass and Bacchus Marsh Road.
As of 8th November 2011 the proprietor of the site is L. Bisinella Developments Pty Ltd.
Historical Land Use(s)
The site has been utilised as farming land / grazing land until the present day. At this time there has been no evidence of any commercial or industrial activities occurring on-site.
The current and historic surrounding land use is a combination of residential housing and farming/grazing land. The immediate properties to the east and south of the site are also vacant land. To the west of the site across Bacchus Marsh Road is an abattoir, however given the distance and direction to this business, it is unlikely to impact the site.
Potential Contaminants of Concern and Potential Contaminant Sources
On-Site Soils
Based on site observations, and a review of historical information, the contamination of soils on-site, if present, would be expected to be limited to shallow soils and be the result of imported fill and / or spraying of pesticides during agricultural activities. The potential contaminants of concern are:
· Arsenic, Pesticides (OPP’s, OCP’s) (Agricultural activities including over spray and wind drift from adjoining land users).
At this time there is considered a very low potential for the soils to be contaminated.
Potential Groundwater Contamination
No obvious signs of potential groundwater contamination have been identified at the site or learned from site history investigations.
Phase II Environmental Site Assessment
Alpha Environmental conducted a soil sampling event on 25th October 2011, to adequately satisfy the requirements for a Phase II Environmental Site Assessment. Soils were sampled in a grid-based pattern across the site, using an excavator.
To assess the potential contaminant issues within the soils on-site, Alpha Environmental ensured that shallow / near surface (0.1m bgl) soil samples and deeper soils (0.5m bgl) were analysed for the potential contaminants of concern.
Soils encountered at the site were generally observed to be of a typical basaltic weathering profile with dark brown, clay rich soils extending to a depth of 0.3m overlying highly weathered residual basalt cobbles set in a pale, dry kaolinite clay which in turn overlie basaltic bedrock which was encountered at a depth of approximately 0.6m.
No elevated concentrations of Arsenic and Pesticides were identified within any soil sample. Additionally other contaminants not having been identified as being potential contaminant of concern were analysed to ensure appropriate coverage reported concentrations of analytes either below the laboratory detection limits and/or the adopted ecological and human health assessment criteria or have been attributed to naturally occurring origin.
Conclusion
After undertaking Phase I and Phase II Environmental Site Assessment works at Part of Lot A on Plan PS540915K, Corio, Alpha Environmental makes the following conclusions:
Alpha Environmental believes that the soils on-site are suitable for the proposed commercial land use. Based on the information obtained during the Phase I & II Environmental Site Assessment, Alpha Environmental undertook the following summary of the pollution status of the soils on-site with respect to the protected beneficial uses of land as prescribed in the State Environment Protection Policy – Prevention of contamination of land.
Beneficial Use Category / Protected Beneficial Uses of this segment of Soil / Polluted / Current Use / Likely Use / Unlikely UseMaintenance of Modified and Highly Modified Ecosystems / / No / /
Human Health / / No / /
Buildings and Structures / / No / /
Aesthetics / / No / /
Production of Food Flora and Fibre / / No / /
CONTENTS
1 Introduction 1
1.1 Objectives 1
1.1.1 Scope of Works for the Phase I ESA 1
1.1.2 Scope of Works for the Phase II ESA 1
2 Background Study 2
2.1 Site Details 2
2.1.1 Site Location and Current Title 2
2.1.2 Current Land Use / Site Condition 2
2.1.3 Planning Schemes and Zoning 2
2.1.4 Proposed Future Land Use / Development 2
2.1.5 Site Summary 3
2.2 Previous Assessments 3
2.3 Regional Geology 3
2.4 Acid Sulphate Potential 3
2.5 Regional Hydrogeology/Hydrology 4
2.6 Site History 4
2.6.1 Review of Sands & McDougall’s Directories of Melbourne and Suburbs 5
2.6.2 Review of Aerial Photographs 5
2.6.3 Historical Titles of Certificates 5
2.6.4 EPA Priority Sites Register 6
2.6.5 Surrounding Environmental Audited Sites 6
2.6.6 Summary of On-Site Land Uses 6
2.6.7 Summary of Off-Site Land Uses 6
3 Initial Site Inspection 7
4 Potential Contamination Sources and Contaminants 8
4.1 On-Site Sources and Contaminants 8
4.1.1 Potential Soil Contamination 8
4.2 Off-Site Sources and Contaminants 8
4.2.1 Potential Groundwater Contamination 8
5 Assessment Criteria and Guidelines 9
5.1 Beneficial Uses of Land 9
5.2 Soil Screening Criteria 10
5.2.1 Environmental Screening Criteria 10
5.2.2 Human Health Criteria – NEPM HILs 11
5.2.3 Buildings and Structures 11
5.2.4 Aesthetics 11
6 Soil Assessment 12
6.1 Objectives 12
6.2 Methodology 12
6.2.1 Sample Locations 12
6.2.2 Soil Sampling and Analysis Program – Test Pits 12
6.3 Field Observations 13
6.4 Results 14
7 Quality Assurance / Quality Control 16
7.1 General 16
7.2 Field QA / QC Program 16
7.3 Equipment Calibration 16
7.4 Laboratory QA / QC Program 17
7.5 Field Duplicate Samples 17
7.6 Trip Blank Sample 18
7.7 Internal Laboratory QA/QC 18
7.8 Quality Control Conclusions 19
8 Discussion 20
8.1 Nature Source and Extent of Soil Contamination 20
8.2 Potential Impact on the Protected Beneficial Uses of Land 20
8.2.1 Maintenance of Ecosystems 20
8.2.2 Human Health 21
8.2.3 Buildings and Structures 22
8.2.4 Aesthetics 22
9 Conclusion 23
10 Limitations 25
11 References 26
TABLES
Table 1. Site Summary 3
Table 2. Aerial Photograph Review 5
Table 3. Historical Title Information 5
Table 4. On-Site Observations 7
Table 5. Beneficial Uses - Land SEPP 10
Table 6. Analytical Suite – Test Pits 13
Table 7. Samples Exceeding Adopted Criteria – Soils 14
Table 8. Field Duplicate Samples 17
Table 9. Potential Receptors 20
Table 10. Summary of Analytes Exceeding Ecological Investigation Criteria 20
Table 11. Pollution Assessment 24
FIGURES
Figure 1 Site Location
Figure 2 Aerial Photograph 1970
Figure 3 Aerial Photograph 1990
Figure 4 Aerial Photograph 2011
Figure 5 Site Plan
APPENDICIES
Appendix A1 Land Channel Documents
Appendix A2 Certificates of Title
Appendix A3 Groundwater Database Search
Appendix B1 Alpha Environmental Standard Operating Procedures
Appendix C1 Environmental Log Sheets
Appendix D1 Analytical Results Summary Tables - Soil
Appendix D2 RPD Calculations
Appendix D3 Field Blanks
Appendix E1 Laboratory Test Certificates
Appendix E2 COC and SRA Documentation
Appendix F1 PID Calibrations Certificate
Abbreviations
Miscellaneous Abbreviations / Authorities ContinuedAHD / Australian Height Datum / USEPA / United States Environmental Protection Agency
BGL / Below Ground Level / Analytes
EIL / Ecological Investigation Level / B(a)P / Benzo(a)pyrene
ESA / Environmental Site Assessment / BTEX / Benzene, Toluene, Ethylbenzene, Xylenes
GIL / Groundwater Investigation Level / MAH / Monocyclic Aromatic Hydrocarbons
GME / Groundwater Monitoring Event / OCP / Organochlorine Pesticides
GMW / Groundwater Monitoring Well / OPP / Organophosphorous Pesticides
HIL / Health Investigation Level / PAH / Polycyclic Aromatic Hydrocarbons
OH&S / Occupational Health and Safety / PCB / Polychlorinated Biphenyls
QA / Quality Assurance / TDS / Total Dissolved Solids
QC / Quality Control / TOC / Total Organic Carbon
RPD / Relative Percentage Difference / TPH / Total Petroleum Hydrocarbons
SEPP / State Environment Protection Policy / VCH / Volatile Chlorinated Hydrocarbons
SWL / Static Water Level / VHC / Volatile Halogenated Compounds
PRG / Preliminary Remediation Goals / VOC / Volatile Organic Compounds
UST / Underground Storage Tanks / Heavy Metals
MGA / Map Grid of Australia / Ag / Silver
Measurements / As / Arsenic
mg / Microgram / Be / Beryllium
mg / Milligram / Cd / Cadmium
g / Gram / Co / Cobalt
kg / Kilogram / Cr / Chromium
tonne / Metric tonne (1,000kg) / Cr6+ / Hexavalent Chromium
ml / Microlitre / Cu / Copper
ml / Millilitre / Hg / Mercury
L / Litre / Mn / Manganese
Authorities / Mo / Molybdenum
ANZECC / Australian and New Zealand Environment and Conservation Council / Ni / Nickel
EPAV / Environment Protection Authority Victoria / Pb / Lead
NATA / National Association of Testing Authorities / Sb / Antimony
NHMRC / National Health and Medical Research Council / Se / Selenium
NEHF / National Environmental Health Forum / Sn / Tin
NEPC / National Environment Protection Council / V / Vanadium
NEPM / National Environment Protection Measure / Zn / Zinc
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