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PRELIMINARY SITE INVESTIGATION2-4 MINTARO AVENUE, STRATHFIELD NSW

Report E22638 AA2 October 2015

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Preliminary Site Investigation2-4 Mintaro Avenue, Strathfield NSW

EI Report No.: E22638 AADate: 2 October 2015

Copies Recipient

1 Soft Copy (PDF – Secured, issued by email)1 Hard Copies (sent by Express Courier)

Mr John LeeSOGO Trading Pty LtdPO Box 691, STRATHFIELD NSW2135

Original (Saved to Digital Archives) Environmental InvestigationsSuite 6.01, 55 Miller Street,PYRMONT NSW 2009

Author Technical Reviewer

JESSIE SIXSMITHEnvironmental Scientist

ROBERT CAMPBELLSenior Environmental Scientist

Revision Details Date Amended By

0 Original 2 October 2015

© 2015 Environmental Investigations Australia Pty Ltd T/A Environmental Investigations (EI)

This report is protected by copyright law and may only be reproduced, in electronic or hard copy format, if it is copied and distributed infull and with prior written permission by EI.

Preliminary Site Investigation2-4 Mintaro Avenue, Strathfield NSWReport No. E22638 AAP a g e | i

Environmental Investigations AustraliaContamination | Remediation | Geotechnical

EXECUTIVE SUMMARY

The property located at 2-4 Mintaro Avenue, Strathfield NSW was the subject of a Preliminary Site Investigation. Theinvestigation was performed as part of a DA for proposed redevelopment into a multi-storey residential apartmentbuilding over a two-level basement car park.

Based on the findings of this assessment, it is concluded that:

Historical records indicated that the site has been occupied by the existing residential houses since at leastthe 1930s, with minimal alterations undertaken since. An active service station is located immediately eastand hydraulically up-gradient from the site.

The site and surrounding properties are not reported as being subject to regulation in relation toenvironmental impacts, as documented in the NSW EPA/OEH public registers;

A search of Council records relating to previous development applications, complaints and other informationpertaining to previous activities at site is currently pending, the findings of which will be reported as soon asthey become available;

The site walkover inspection did not identify areas of environmental concern; however, potential hazardousbuilding materials within residential structures were considered to present a low potential risk of exposureduring redevelopment;

No evidence was identified to indicate the presence of any onsite sources of groundwater contamination,however there is potential for off-site contamination migration from the adjacent active service station locatedimmediately east of the site. Therefore, an intrusive groundwater investigation is warranted.

Given the nature and extent of the proposed development and considering the close proximity of an active servicestation, a soil and groundwater sampling program, as well as a hazardous materials survey, are warranted to quantifyany contamination risks and to inform the selection and implementation of remedial and risk mitigation measures (ifrequired).

Taking into account the above considerations and subject to the statement of limitations (Section 8), EI concludesthat there is potential for contamination to be present on site. EI considers that the site can be made suitable for theproposed residential development provided a Detailed Site Investigation (DSI) is carried out to qualitatively assesssoil and groundwater conditions at the site.

EI recommend the following:

Conduct a detailed site investigation (DSI) to characterise site soils and groundwater to provide baseline datafor evaluation of any remedial and management requirements that may be necessary to allow the site to bemade suitable for the proposed commercial development;

Conduct a Hazardous Materials Survey (HMS) of current structures present at the site, if not previouslyundertaken. EI recommend that a HMS is conducted prior to demolition of site structures;

Any material being removed from site (including virgin excavated natural materials or VENM) is classified foroff-site disposal in accordance with NSW EPA (2014) Waste Classification Guidelines; and

Preliminary Site Investigation2-4 Mintaro Avenue, Strathfield NSWReport No. E22638 AAP a g e | ii


Any material being imported to the site should be assessed for potential contamination in accordance withNSW EPA guidelines as being suitable for the intended use or be classified as VENM.

Preliminary Site Investigation2-4 Mintaro Avenue, Strathfield NSWReport No. E22638 AAP a g e | iii


TABLE OF CONTENTS

1. INTRODUCTION 11.1 BACKGROUND AND PURPOSE 11.2 PROPOSED DEVELOPMENT 11.3 REGULATORY FRAMEWORK 11.4 PROJECT OBJECTIVES 21.5 SCOPE OF WORKS 2

2. SITE DESCRIPTION 32.1 PROPERTY IDENTIFICATION, LOCATION AND PHYSICAL SETTING 32.2 LOCAL LAND USE 32.3 REGIONAL SETTING 42.4 GROUNDWATER BORE RECORDS AND LOCAL GROUNDWATER USE 52.5 SITE WALKOVER INSPECTION 6

3. SITE HISTORY AND SEARCHES 73.1 SITE LAND TITLES INFORMATION / HISTORIC AERIAL REVIEW 73.2 SURROUNDING LANDS HISTORICAL AERIAL PHOTOGRAPHY REVIEW 93.3 COUNCIL INFORMATION 103.4 HAZARDOUS CHEMICALS AND REGULATORY COMPLIANCE 10

4. DATA ASSESSMENT 124.1 OVERVIEW 124.2 HISTORICAL SITE USE AND GENERIC RISKS 124.3 TOXICITY OF HAZARDOUS MATERIALS 134.4 RISK OF SIGNIFICANT SPILLAGE/PRODUCT RELEASE 144.5 RISK OF SOIL, SOIL VAPOUR AND GROUNDWATER CONTAMINATION 144.6 DATA GAPS 14

5. CONCEPTUAL SITE MODEL 155.1 OVERVIEW 155.2 POTENTIAL CONTAMINATION SOURCES 155.3 CONTAMINANTS OF POTENTIAL CONCERN 155.4 POTENTIAL SOURCES, RECEPTORS AND EXPOSURE PATHWAYS 15

6. CONCLUSIONS 27. RECOMMENDATIONS 38. STATEMENT OF LIMITATIONS 4REFERENCES 5ABBREVIATIONS 6

TABLES (In Text)TABLE 2-1 SITE IDENTIFICATION, LOCATION AND ZONING 3

TABLE 2-2 LOCAL LAND USE 4

TABLE 2-3 REGIONAL SETTING INFORMATION 4

TABLE 2-4 SUMMARY OF REGISTERED GROUNDWATER BORES WITHIN 500 M OF THE SITE 5

TABLE 3-1 SUMMARY OF OWNERS AND HISTORICAL AERIAL PHOTOGRAPHY 7

TABLE 3-2 SUMMARY OF AERIAL PHOTOGRAPH REVIEW 10

TABLE 5-1 ASSESSMENT OF CONTAMINATION RISK FROM POTENTIAL SOURCES 13

Preliminary Site Investigation2-4 Mintaro Avenue, Strathfield NSWReport No. E22638 AAP a g e | iv


FIGURESFIGURE 1 LOCALITY PLANFIGURE 2 SITE LAYOUT PLAN

APPENDICESAPPENDIX A PROPOSED DEVELOPMENT PLANS

APPENDIX B SITE PHOTOGRAPHS

APPENDIX C HISTORICAL PROPERTY TITLES SEARCH

APPENDIX D GROUNDWATER BORE SEARCH

Preliminary Site Investigation2-4 Mintaro Avenue, Strathfield NSWReport No. E22638 AAP a g e | 1


1. INTRODUCTION

1.1 BACKGROUND AND PURPOSE

Environmental Investigations Australia Pty Ltd (EI) was engaged by Mr John Lee of SOGO Trading Pty Ltd toconduct a Preliminary Site Investigation (PSI) on the land parcel known as 2-4 Mintaro Avenue, Strathfield NSW (‘thesite’).

The site is situated approximately 13 km west of the Sydney central business district, within the Local GovernmentArea of Municipality of Strathfield (see Figure 1). The site is identified as Lot 1 DP954705 and Lot 1 DP 105600, witha total area of approximately 1,172 m2. A site layout plan is presented as Figure 2.

This PSI report has been prepared in support of a development application to Municipality of Strathfield to enable thedeveloper to meet its obligations under the Contaminated Land Management Act 1997 (CLM Act), for theassessment and management of contaminated soil and/or groundwater.

1.2 PROPOSED DEVELOPMENT

Based on the drawings provided by the client, EI understand that the proposed development will involve thedemolition of the existing buildings and the construction of a multi-storey residential apartment building with a two-level basement car park which will involve excavation to approximately 26.54 m AHD (6.3 m bgl). Copies of thedevelopment plans are attached in Appendix A.

1.3 REGULATORY FRAMEWORK

The following regulatory framework and guidelines were considered during the preparation of this report:

ANZECC & ARMCANZ (2000) Australian and New Zealand Guidelines for Fresh and Marine Water Quality,Australian and New Zealand Environment and Conservation Council / Agriculture and Resource ManagementCouncil of Australia and New Zealand, October 2000;

DECCW (2009) Guidelines for Implementing the Protection of the Environment Operations (UndergroundPetroleum Storage Systems) Regulation 2014, (UPSS Guidelines), NSW Department of Environment, ClimateChange and Water (DECCW, later renamed as the Office of Environment and Heritage – OEH), May 2009;

DEC (2007) Guidelines for the Assessment and Management of Groundwater Contamination, NSW Departmentof Environment and Conservation (DEC, later renamed OEH), March 2007;

EPA (1995) Sampling Design Guidelines, NSW Environmental Protection Authority, September 1995;

EPA (2014) Technical Note: Investigation of Service Station Sites;

NEPC (2013) Schedule B(1) Guideline on Investigation Levels for Soil and Groundwater, National EnvironmentProtection (Assessment of Site Contamination) Measure 1999 – Amendment 2013, National EnvironmentProtection Council, May 2013;

NEPC (2013) Schedule B(2) Guideline on Site Characterisation, National Environment Protection (Assessmentof Site Contamination) Measure 1999 – Amendment 2013, National Environment Protection Council, May 2013;



Contaminated Land Management Act (1997);

OEH (2011) Guidelines for Consultants Reporting on Contaminated Sites, NSW Office of Environment andHeritage (OEH), August 2011;

State Environment Protection Policy 55 (SEPP 55) – Remediation of Land; and

Strathfield Council (2005) Policy For The Management Of Development On Contaminated Land.

1.4 PROJECT OBJECTIVES

The primary objectives of this PSI is to provide a qualitative assessment of the environmental conditions of the siteby appraising the potential for site contamination on the basis of field observations, historical land uses, anecdotaland documentary evidence.

1.5 SCOPE OF WORKS

The scope of works for the investigation included the following:

1.5.1 Desktop Study

A review of relevant topographical, geological, hydrogeological and soil landscape maps for the project area;

Review of selected historical aerial photographs archived at NSW Land and Property Information in order toreview previous site use and the historical sequence of land development in the neighbouring area;

A land titles search conducted through NSW Land and Property Information for information relating to siteownership;

Site history survey involving a detailed search of Municipality of Strathfield records for information relating tooperational site history and/or relevant environmental incidents;

A review of the NSW EPA Land Information records to confirm that there are no statutory notices, notificationand licences current on the site under the Contaminated Land Management Act (1997) and Protection of theEnvironment Operations Act (1997); and

A review of existing underground services on site.

1.5.2 Field Work

A detailed site walkover inspection.

1.5.3 Data Analysis and Reporting

The final task of this assessment involved the preparation of a PSI report to document investigation works, withdiscussion of search findings in regards to potential risks to human health, the environment and the aestheticenjoyment of the land.



2. SITE DESCRIPTION

2.1 PROPERTY IDENTIFICATION, LOCATION AND PHYSICAL SETTING

The site identification details and associated information are presented in Table 2-1, while the site locality is shown inFigure 1.

Table 2-1 Site Identification, Location and Zoning

Attribute Description

Street Address 2-4 Mintaro Avenue, Strathfield NSW

Location Description The site is located approximately 13 km west of the Sydney CBD. It is bounded to the north byMintaro Avenue, to the east by a petrol station and Liverpool road/Hume Highway Street and tothe south and west by residential buildings.Coordinates of the north-eastern corner of site under GDA94-MGA56: Easting: 323412.609,Northing: 6248606.915 (Source: http://maps.six.nsw.gov.au).

Site Area Approx. 1,172 m2

Site Owner SOGO Trading Pty Ltd

Lot and Deposited Plan (DP) Lot 1 DP954705 and Lot 1 DP 105600

State Survey Marks One State Survey Mark (SSM) is situated in close proximity to the site: SS118283 on the cornerof Mintaro Avenue and Liverpool Road.(Source: http://maps.six.nsw.gov.au).

Local Government Authority Municipality of Strathfield

Parish St Martha's Parish

County Cumberland County

Current Zoning R2 – Low Density Residential (Strathfield Local Environment Plan, 2012)

At the time of the assessment, the site was occupied by two separate residential dwellings. The assessment area isillustrated in Figure 2.

2.2 LOCAL LAND USE

The site is situated within an area of residential development. Current uses, including sensitive receptors, onsurrounding lands are described in Table 2-2.



Table 2-2 Local Land Use

Direction Relative to Site Land Use Description

North Mintaro Ave followed by Residential with accessible soils

South Residential with accessible soils.

East Service station followed by Liverpool road

West Residential with accessible soils

The following sensitive receptors including childcare centres and schools were identified within 500 metres of thesite: City Kidz located approximately 260 m north east, Beaumaris Street Early Learning Centre locatedapproximately 300 m east, and Enfield Public School located approximately 390 m east of the site.

2.3 REGIONAL SETTING

Local ground topography, geology, soil landscape and hydrogeological information are summarised in Table 2-3.

Table 2-3 Regional Setting Information


Topography The regional topography consists of level to gently undulating rises on Wianamatta Group shales andHawkesbury shale. Local topography declines gently towards the south west.

Regional Geology Bringelly Shale of the Wianamatta Group, which typically comprises carbonaceous claystone,laminite, fine to medium-grained lithic sandstone, with rare coal. (Source: Department of MineralResources Geological Map Sydney 1:100,000 Geological Series Sheet 9130, 1991).

Soil Landscapes Blacktown (bt) soil landscape. Soils are residual, comprise generally shallow to moderately deep (<1m) red and brown podzolic soils on upper slopes; deep (150-300 cm) yellow podzolic soils andsoloths on lower slopes. (Source: Soil Conservation Service of NSW Sydney 1:100,000 SoilLandscapes Series Sheet 9130,2nd Edition)

Acid Sulfate Soil Risk With reference to the Botany Bay Acid Sulfate Soil Risk Map (1:25,000 scale; Murphy, 1997), thesubject land lies within the map class description of No Known Occurrence. In such cases, acidsulphate soils (ASS) are not known or expected to occur and “land management activities are notlikely to be affected by ASS materials”.The Strathfield Council Local Environmental Plan 2012- Acid Sulfate Soils Risk Class 1:1,000 scaleMap indicates that the site lies within a Class 5 ASS area. Council consent is therefore required priorto commencing any works within 500m of Class 1, 2, 3 or 4 land, with a ground elevation of below 5mAustralian Height Datum (AHD) and where the water table is likely to be lowered below 1m AHD onadjacent Class 1, 2, 3 or 4 land.

Likelihood & Depth of SiteFilling

Based on the field observations maximum fill depth is anticipated to be < 1.0 mBGL and is likely to bepresent within the footprints of the current site buildings.

Site Drainage Site drainage is anticipated to occur as overland flow and discharge to the municipal stormwatersystem. Infiltration to subsurface soils is expected to occur in the grassed yards at the north andsouth of both residential houses.

Depth to Groundwater Onsite groundwater conditions, including inferred groundwater flow direction, are discussed inSection 7.2.




Nearest Receiving SurfaceWater Feature

Cooks River, located approximately 1.2 km south west of the site.

Groundwater FlowDirection

Inferred to be towards the south west towards Cooks River which is located approximately 1.2 kmsouth west of the site.

2.4 GROUNDWATER BORE RECORDS AND LOCAL GROUNDWATER USE

An online search of registered groundwater bores was conducted by EI on 28 September 2015 through the NSWOffice of Water (Ref. http://allwaterdata.water.nsw.gov.au/water.stm). There were 17 groundwater bores identifiedwithin a 500 m radius of the site.

Table 2-4 Summary of Registered Groundwater Bores within 500 m of the site

Bore No. Date Drilled Drilled Depth (m) SWL*/Salinity/Yield Bore Purpose

GW105174 14/11/2002 7.00 5.00 / - / - Monitoring

GW105175 14/11/2002 5.00 - / - / - Monitoring

GW105176 14/11/5005 4.00 - / - / - Monitoring

GW105177 14/11/2002 2.00 - / - / - Monitoring

GW105178 14/11/2002 1.00 - / - / - Monitoring

GW105179 19/11/2002 5.00 - / - / - Monitoring

GW105180 19/11/2002 2.00 - / - / - Monitoring

GW105181 19/11/2002 2.20 - / - / - Monitoring

GW105182 19/11/2002 2.00 - / - / - Monitoring

GW105183 19/11/2002 3.70 - / - / - Monitoring

GW105184 19/11/2002 2.30 - / - / - Monitoring

GW105185 19/11/2002 2.20 - / - / - Monitoring

GW107460 12/10/2004 5.00 - / - / - Monitoring

GW107461 09/05/2005 6.00 3.40 / - / - Monitoring

GW107462 09/05/2005 3.90 3.90 / - / - Monitoring

GW107463 09/05/2005 3.90 3.90 / - / - Monitoring

GW107464 09/05/2005 3.50 3.50 / - / - Monitoring

Notes: - Data not recorded; * SWL – Standing water level measured in m BGL, Salinity – units unspecified, Yield – measured in L/s.

Based on the available information, groundwater is expected to be at shallow depths.



2.5 SITE WALKOVER INSPECTION

Site observations were recorded during a site walkover inspection of the site on 24 August 2015. A summary of siteobservations is detailed below and site photographs taken during the inspection are present in Appendix B.

2.5.1 General Site Observations

Site observations indicated that:

The site consists of two separate lots, with both lots being occupied by residential houses within the northernhalf of the site. Smaller sheds are located in the south eastern corner of both lots, with grassed areas andgardens across the remaining site areas (Photo 1).

Site building structures were observed to be poorly maintained;

Site pavements were generally in average condition, with some cracking, deformation present;

Vegetation was present at the site and was observed to be in good conditions, with no signs of stress;

A small plantation of papaya trees was observed in the southern half of the eastern lot (Photo 2);

A active service station is present immediately west of the site and hydraulically up-gradient, with undergroundpetroleum storage systems (UPSS) present near site boundaries (Photo 3);

No suspicious odours were noted during the site walkover inspection.

A site layout plan is presented as Figure 2.



3. SITE HISTORY AND SEARCHES

3.1 SITE LAND TITLES INFORMATION / HISTORIC AERIAL REVIEW

A historical land titles search was conducted through Legal Liaison Searching Services Pty Ltd. Copies of relevantdocuments resulting from this search are presented in Appendix C. A summary of all the previous and currentregistered proprietors along with information obtained from the available historical aerial photographs, in relation topast potential land uses is presented in Table 3-1. The historical aerial photographs reviewed as part of this PSIincluded:

1930: February 1930, Run 16, Map 3428, B/W, NSW Lands Photo

1943: Six Maps (https://maps.six.nsw.gov.au/) 1943 Imagery – NSW Department of Finance and Services

1951: May 1951, Run 14, B/W, NSW 467-57 Lands Photo;

1961: 1961 series, Run 36E, Map 1042, NSW 5023, Cumberland 1961 Series;

1982: 06 August 1982, Run 23, NSW 3240 – Land and Property Information NSW;

1997: 24 November, 1997, Run 12, NSW 4380 – Land and Property Information NSW;

2015: 31 January, 2015, Google Earth.

Table 3-1 Summary of Owners and Historical Aerial Photography

Date ofAcquisition and

term heldRegistered Proprietor(s) & Occupations

(where documented)Site description based on

historical aerial photographsAssociatedbusiness

As regards Lot 1 D.P. 954705 – 2 Mintaro Avenue

12.10.1916(1916 to 1919)

Ephraim Stoneham (Engineer)- -

03.07.1919(1919 to 1928)

Edward Hosking Wilshire (Company Secretary)Charles Edward Webb (Squatter)

- -

04.10.1928(1928 to 1948)

Florence Evelyn Rossiter (Widow)

1930: The site is occupied by aresidential dwelling located withinthe northern half of the site. Thesouthern half of the site is vacantgrassed land with vegetation.1943: The site remainspredominantly unchanged from the1930 aerial photograph.

Residential

08.06.1948(1948 to 1948)

Alan McDonald Rossiter (Farmer)(Transmission Application not investigated)

- Residential







08.12.1948(1948 to 1959)

Maria Rapisardi (Married Woman)

1951: The site remainspredominantly unchanged from the1930s aerial photograph, with theexception of the addition of a smallstructure (possibly shed) within thesouthern half of the site.

Residential

20.10.1959(1959 to 1959)

George Rapisardi (Smallgoods Distributor)Robert Curro (Fruiterer)(Section 94 Application not investigated)

- Residential

20.10.1959(1959 to 1978)

John Fichera (Fruiterer)1961: The site remainspredominantly unchanged from the1951 aerial photograph.

Residential

06.03.1978(1978 to 1978)

Robert John Joseph Curro (Fruiterer)Maria Adeline Discusso (Married Woman)

- Residential

06.12.1978(1978 to 1988)

John William Boggs (Driver)Lorraine Pamela Boggs (Married Woman)

1982: The site remainspredominantly unchanged from the1961 aerial photograph.

Residential

06.10.1988(1988 to 1999)

Graeme Timothy MiddletonAnne Patricia Middleton

1997: The site remainspredominantly unchanged from the1982 aerial photograph with theexception of a swimming pool beingpresent within the southern portionof the site, and a larger shedoccupying the eastern edge withinthe southern portion. A paved /concreted area is present within thearea surrounding the pool.

Residential

10.09.1999(1999 to date)

# John Kwong Lee# Yuen Yee Lai

2015: The site remainspredominantly unchanged from the1997 aerial photograph, with theexception of the swimming poolappears to have been removedfrom the site.

Residential

As regards Lot 1 D.P. 105600 – 4 Mintaro Avenue

13.10.1916(1916 to 1920) Eva Rasmussen (Married Woman)

- -

21.02.1920(1920 to 1920)

Emily Ford (Married Woman)- -

19.03.1920(1920 to 1925)

Reuben Butt (Gentleman)- -







09.10.1925(1925 to 1964)

Frederick Smyth (Master Plumber)

1930: The site is occupied by aresidential dwelling located withinthe northern half of the site. Thesouthern half of the site is vacantgrassed land with vegetation.1943: The site remainspredominantly unchanged from the1930 aerial photograph, with theexception of a small shed ispresent on the south eastern cornerof the residential house.1951: The site remainspredominantly unchanged from the1943 aerial photograph.1961: The site remainspredominantly unchanged from the1951 aerial photograph

Residential

17.08.1964(1964 to 1966)

Violet Grace Smyth (Widow)(Section 94 Application not investigated)

- Residential

15.1.1966(1966 to 1998)

Alfio Lanzafame (Shop Owner)Giuseppa Lanzafame (Married Woman)

1982: The site remainspredominantly unchanged from the1961 aerial photograph

Residential

16.06.1998(1998 to 2007)

Alfio Lanzafame (Shop Owner)

1997: The site remainspredominantly unchanged from the1982 aerial photograph. A gardenarea is present within the southernportion of the site.

Residential

30.08.2007(2007 to 2008)

Gina Di FrancescoGiuseppa Costanzo

- Residential

26.11.2008(2008 to date)

# Yuen Yee Lai2015: The site remainspredominantly unchanged from the1997 aerial photograph

Residential

Notes: # Denotes Current Registered Proprietor

In summary, review of land titles records and historic aerial photography showed that the current residential dwellingshave been present on site since at least the 1930s. Additional structures, including smaller shed and a swimmingpool have been present within the southern half of the site.

3.2 SURROUNDING LANDS HISTORICAL AERIAL PHOTOGRAPHY REVIEW

As part of the Site Land Titles Information / Historic Aerial Review, an assessment of surrounding land uses usinghistorical aerial photographs sourced from NSW Land and Property Information was carried out. A summary of thepertinent information identified at surrounding land parcels from the reviewed photographs is presented in Table 3-2.



Table 3-2 Summary of Aerial Photograph Review

Aerial Photograph Surrounding land uses based on historical aerial photographs

1930February 1930

The surrounding land use is dominantly residential, commercial buildings are present immediately eastof the site, and along Liverpool Road. Further west / south west, land appears to be vacant / cleared. Aquarry / excavated area is present to the south east of the site.

1943Six Maps 1943 Imageryhttps://maps.six.nsw.gov.au/

The surrounding land use remains predominantly unchanged from the 1930 aerial photograph, with theexception of an increase in developed areas (commercial and residential) on the previously clearedland located further south west and west of the site.

1951May 1951

The surrounding land use remains predominantly unchanged from the 1943 aerial photograph, with theexception of an increase in commercial / industrial type buildings to the south west. An increase incommercial buildings is also apparent along Liverpool road.

1961August 1961

The surrounding land use remains predominantly unchanged from the 1951 aerial photograph.

1982August 1982

The surrounding land use remains predominantly unchanged from the 1961 aerial photograph, with theexception of the previous excavation being filled / reclaimed. The property immediately east of the siteappears to be an active service station.

1997November 1997


2015Google Earth


3.3 COUNCIL INFORMATION

An application to access records held by City of Sydney Council was initiated on 28 September 2015; however,Council approval was still pending as at the time of report writing. Should pertinent information be identified uponreceipt of Council records, an addendum to the PSI will be prepared and issued.

3.4 HAZARDOUS CHEMICALS AND REGULATORY COMPLIANCE

Contaminated Land – Record of EPA Notices Section 58 of CLM Act

On 29 September 2015, an on-line search of the contaminated land public record of NSW Environment ProtectionAuthority (EPA) Notices was conducted. The contaminated land public record is a searchable database of:

Any relevant determinations under section 11 that relates to land that is significantly contaminated land,

Orders made under Part 3 of the Contaminated Land Management Act 1997 (CLM Act);

Approved voluntary management proposals under the CLM Act that have not been fully carried out and wherethe approval of the EPA has not been revoked;

Site Audit Statements provided to the EPA under Section 53B of the CLM Act that relate to significantlycontaminated land;

Where practicable, copies of any documentation formerly required to be part of the public record; and



Actions taken by the EPA under Sections 35 and 36 of the Environmentally Hazardous Chemicals Act 1985.

This search confirmed that the NSW OEH had no regulatory involvement in relation to the area of investigation, orproperties within 500 m of the site

A search through the List of NSW Contaminated Sites notified to the EPA under Section 60 of the CLM Act 2008 wasalso conducted on 29 September 2015. This list is maintained by NSW EPA and includes properties on whichcontamination has been identified. Not all notified land is deemed to be impacted significantly enough to warrantregulation by the EPA. The site or any nearby properties (within 500 m) have not been notified as contaminated tothe EPA.

Protection of the Environment Operations Act public register

A search of the Protection of the Environment Operations (POEO) Act public register, regarding environmentalprotection licences, applications, notices, audits, pollution studies, and reduction programmes, did not identify anyrecord for the site.



4. DATA ASSESSMENT

4.1 OVERVIEW

The primary purpose of this assessment is to evaluate the environmental and human-health risks associated withpotential contamination at the site. In the context of this assessment, these risks may be defined as the probabilitythat the utility of the site may be diminished by the presence of soil, soil vapour or groundwater contamination, whichmay require that the site be remediated prior to any redevelopment, particularly where more sensitive land uses areproposed.

For the purposes of producing a qualitative assessment of risk, the degree of contamination risk at this site isindicated in this section with due regard for site contamination experienced on typical residential properties in theSydney metropolitan area located adjacent to service station sites and main roads.

Since this assessment is based on the findings of a preliminary site investigation, which did not involve sampling andanalysis of soils, soil vapours or groundwater, risks have been assessed on the basis of:

Information gleaned from the site history searches in relation to previous land uses and anecdotal findingsrelating to site use, and the use of adjacent properties;

Site surface conditions, as deduced from visual observations;

A review of existing underground services on site;

The geological and hydrological setting of the site; and

Professional judgement based on previous experience on similar residential sites adjacent to main roads andservice stations sites.

Whilst this approach provides a framework for preliminary assessment of relative risk, its limitations must be clearlyunderstood. Only sampling and analysis can provide a definitive picture of the contamination status of a site.

Nevertheless, the information provided in this report may be sufficient to make a decision as to the risks associatedwith potentially impacted soils, soil and groundwater at the site.

4.2 HISTORICAL SITE USE AND GENERIC RISKS

The available historical information indicates that there are low to moderate risks associated with the historicalresidential site use (since at least the 1930s). The residential buildings have been present without major modificationsince the 1930’s. However, an active service station is present immediately east and hydraulically up-gradient fromthe site, with UPSS located near the eastern boundary of the site. Based on the historical aerial photograph review EIexpects this property has been a service station from at least 1982, with commercial activities undertaken from atleast the 1930s.

As the proposed development will involve demolition of existing site structures, a number of generic risks affectnearly all older residential properties. The assessment of these risks in relation to this site is outlined in Table 5-1.



Table 5-1 Assessment of contamination risk from potential sources

Potential Sources Impacted Medium PotentialContaminants ofConcern 1

Likelihood for Contamination to Occur and InfluenceEnd Use of the Proposed Development

Importation of fill soils ofunknown origin placedacross the site

Soil, and ultimatelygroundwater due tocontaminationleaching

HM, TRH, PAH, BTEX,OC/OP Pesticides, PCBand asbestos

LowAs the site is relatively level with the surroundingtopography; it is unlikely that significant filling materialhas been used under existing site structures, the riskassociated with contaminated fill material is thereforeconsidered to be low.

Weathering of exposedpainted surfaces andmetallic objects in existingsite structures.


Lead , Asbestos Low to mediumSources of lead in soils and dusts include:flaking, chipping, or weathering paint: improperrenovation of buildings and disposal of buildingmaterials;Lead that has settled out from leaded petrol exhaustfumes;Settled dust from off-site industrial sources and leadaround houses from lead paint that has been scrapedoff during the continuing repainting of the house.

Potential on-site use ofpesticides underneathexisting building footprints

Soil HM, OC/OP Pesticides LowAny impacts, should they be present, would likely bepresent beneath existing structures, and limited toshallow soils considering the nature of the application.

Hazardous buildingproducts contained inexisting site structures

Building fabric Asbestos, PCB, lead,synthetic fibres

LowA Hazardous Materials Survey will be required toidentify hazardous building products in existingstructures.

Historical residentialactivities


TPH (petrol) LowGiven the site has been used for residential purposes,the risk of contamination to occur on site is consideredlow.

Migration of contaminationfrom off-site sources,including petrol storage inthe adjacent service station

Soil andGroundwater

HM, TRH, PAH, BTEX, Medium to HighAs an active service station is present immediately eastand up-gradient of the site, with active UPSS. The riskof off-site contamination migration is considered to bemedium to high. An intrusive soil and groundwaterinvestigation is required to assess the risks associatedwith this.

Note:1 HM – Heavy Metals (arsenic, cadmium, chromium, copper, lead, mercury, nickel and zinc) unless otherwise indicated, TRH – TotalRecoverable Hydrocarbons, PAH – Polycyclic Aromatic Hydrocarbons, BTEX – Benzene, Toluene, Ethylene and Xylene, OC/OP pesticides -Organochlorine and Organophosphorus Pesticides, PCB - Poly-chlorinated Biphenyls, PCPs - pentachlorophenols, VOC –Volatile OrganicCompounds, VOCC – Volatile Organic Chlorinated Compounds

4.3 TOXICITY OF HAZARDOUS MATERIALS

No records or other evidence were identified to indicate the previous or present handling or storage of hazardousmaterials on the site and historical searches indicate residential site use. However, as the site is located adjacent toan active service station with UPSS, there is potential for off-site migration of contaminants into soil and groundwateron site.



4.4 RISK OF SIGNIFICANT SPILLAGE/PRODUCT RELEASE

No toxic materials were observed on site. The risk of significant spillage or product release on site is considered tobe low.

4.5 RISK OF SOIL, SOIL VAPOUR AND GROUNDWATER CONTAMINATION

The risk of significant soil, soil vapour and groundwater contamination being present is considered to be negligible tolow. Risks have been assessed with consideration with the identified potential contamination sources described inTable 5-1.

4.6 DATA GAPS

Based on the CSM derived for the site (Section 4) and the above qualitative assessment of risks, the following datagaps have been identified, which are considered to warrant closure by limited additional investigation:

Uncertainty in regards to potential of hazardous material to be present in the residential structures and possibleweathering of current site buildings; and

Uncertainty in regards to off-site soil and groundwater contamination migration levels associated with theadjacent service station and UPSS.



5. CONCEPTUAL SITE MODEL

5.1 OVERVIEW

In accordance with NEPM (2013) Schedule B2 – Guideline on Site Characterisation and to aid in the assessment ofdata collection for the site, EI developed a preliminary conceptual site model (CSM) assessing plausible pollutantlinkages between potential contamination sources, migration pathways and receptors. The CSM provides aframework for identifying data gaps in the existing site characterisation and future site assessments. Potentialcontamination sources, exposure pathways and receptors that were considered relevant for this assessment aresummarised along with a qualitative assessment of the potential risks posed by complete exposure pathways inTable 4-1.

5.2 POTENTIAL CONTAMINATION SOURCES

On the basis of the PSI findings potential contamination sources are as follows:

Weathering of building structures (i.e. painted surfaces, metallic structures, cement-fibre sheeting, etc.); and

Potential contamination from the adjacent service station with active UPSS.

5.3 CONTAMINANTS OF POTENTIAL CONCERN

Based on the findings of the PSI, the chemicals of potential concern (COPC) at the site are considered to be:

Soil - heavy metals (HM), total recoverable hydrocarbons (TRH), the monocyclic aromatic hydrocarboncompounds benzene, toluene, ethyl-benzene and xylenes (BTEX), polycyclic aromatic hydrocarbons (PAH),organochlorine and organophosphorous pesticides (OCP/ OPP), polychlorinated biphenyls (PCB) and asbestos.

Groundwater - HM, TRH, BTEX.

5.4 POTENTIAL SOURCES, RECEPTORS AND EXPOSURE PATHWAYS

Potential contamination sources, exposure pathways and human and environmental receptors that were consideredrelevant for this assessment are summarised in Drawing 4-1.



Drawing 4-1 Conceptual Site Model for 2-4 Mintaro Avenue, Strathfield



6. CONCLUSIONSThe property located at 2-4 Mintaro Avenue, Strathfield NSW was the subject of a Preliminary Site Investigation. Theinvestigation was performed as part of a DA for proposed redevelopment into a multi-storey residential development.

Based on the findings of this assessment, it is concluded that:

Historical records indicated that the site has been occupied by the existing residential houses since at leastthe 1930s, with minimal alterations undertaken since. An active service station is located immediately eastand hydraulically up-gradient from the site.

The site and surrounding properties are not reported as being subject to regulation in relation toenvironmental impacts, as documented in the NSW EPA/OEH public registers;

A search of Council records relating to previous development applications, complaints and other informationpertaining to previous activities at site is currently pending, the findings of which will be reported as soon asthey become available;

The site walkover inspection did not identify areas of environmental concern; however, potential hazardousbuilding materials within residential structures were considered to present a low potential risk of exposureduring redevelopment;

No evidence was identified to indicate the presence of any onsite sources of groundwater contamination,however there is potential for off-site contamination migration from the adjacent active service station locatedimmediately east of the site. Therefore, an intrusive groundwater investigation is warranted.

Given the nature and extent of the proposed development and considering the close proximity of an active servicestation, a soil and groundwater sampling program, as well as a hazardous materials survey, are warranted to quantifyany contamination risks and to inform the selection and implementation of remedial and risk mitigation measures (ifrequired).

Taking into account the above considerations and subject to the statement of limitations (Section 8), EI concludesthat there is potential for contamination to be present on site. EI considers that the site can be made suitable for theproposed residential development provided a Detailed Site Investigation (DSI) is carried out to qualitatively assesssoil and groundwater conditions at the site.



7. RECOMMENDATIONSEI recommend the following:

Conduct a detailed site investigation (DSI) to characterise site soils and groundwater to provide baseline datafor evaluation of any remedial and management requirements that may be necessary to allow the site to bemade suitable for the proposed commercial development;

Conduct a Hazardous Materials Survey (HMS) of current structures present at the site, if not previouslyundertaken. EI recommend that a HMS is conducted prior to demolition of site structures;

Any material being removed from site (including virgin excavated natural materials or VENM) is classified foroff-site disposal in accordance with NSW EPA (2014) Waste Classification Guidelines; and

Any material being imported to the site should be assessed for potential contamination in accordance withNSW EPA guidelines as being suitable for the intended use or be classified as VENM.



8. STATEMENT OF LIMITATIONSThis report has been prepared for the exclusive use of SOGO Trading Pty Ltd, who is the only intended beneficiary ofEI’s work. The scope of the investigations carried out for the purpose of this report is limited to those agreed withJohn Lee on 1st July 2015.

No other party should rely on the document without the prior written consent of EI, and EI undertakes no duty, oraccepts any responsibility or liability, to any third party who purports to rely upon this document without EI's approval.

EI has used a degree of care and skill ordinarily exercised in similar investigations by reputable members of theenvironmental industry in Australia as at the date of this document. No other warranty, expressed or implied, is madeor intended. Each section of this report must be read in conjunction with the whole of this report, including itsappendices and attachments.

The conclusions presented in this report are based on a limited assessment of historical site use and current use ofthe site. Due to the preliminary nature of this assessment, findings are not based on actual samples collected ortesting conducted. EI has relied upon information provided by the Client and other third parties to prepare thisdocument, some of which could not be verified by EI due to the anecdotal or historical nature of the information.

EI's professional opinions are reasonable and based on its professional judgment, experience and training.

EI's professional opinions contained in this document are subject to modification if additional information is obtainedthrough the data searches that have been initiated with government authorities, but for which the requestedinformation is still pending.

Technical opinions may also be amended in the light of further investigation, observations, or validation testing andanalysis during remedial activities. In some cases, further testing and analysis may be required, which may result in afurther report with different conclusions.



REFERENCESAhern C R, Stone, Y, and Blunden B (1998) Acid Sulfate Soils Assessment Guidelines, part of the ASS Manual, Acid Sulfate Soil

Management Advisory Committee (ASSMAC), Wollongbar, NSW, Australia, 28 August 1998, 59 p.

Chapman, G.A. and Murphy, C.L. (1989) Soil Landscapes of the Sydney 1:100 000 sheet, Soil Conservation Service of NSW,Sydney, September 1989.

DMR (1991) Sydney 1:100,000 Geological Series Sheet 9130 (Edition 1). Geological Survey of New South Wales, Department ofMineral Resources.

Naylor SD, Chapman GA, Atkinson G, Murphy CL, Tulau MJ, Flewin TC, Milford HB and Morand DT (1998) Guidelines for theUse of Acid Sulfate Soil Risk Maps. Department of Land and Water Conservation, Sydney, Second Edition.

NEPM (2013) Schedule B1 Guideline on Investigation Levels for Soil and Groundwater, Schedule B2 Guideline on SiteCharacterisation and Schedule B4 Guideline on site-specific health risk assessments, National Environmental Protection(Assessment of Site Contamination) Measure 1999, National Environmental Protection Council, December 1999,Amendment 2013.

OEH (2011) Guidelines for Consultants Reporting on Contaminated Sites, NSW Office of Environment and Heritage (OEH), OEH2011/0650, 23 p.

USEPA (2006) Data Quality Assessment: A Reviewers Guide – EPA QA/G-9R. USEPA Office of Environmental Information,EPA/240/B-06/002, February 2006.

USEPA (2002) OSWER Draft Guidance for Evaluating the Vapor Intrusion to Indoor Air Pathway from Groundwater and Soil,USEPA, EPA530-D-02-004, November 2002.



ABBREVIATIONSAHD Australian Height DatumASS Acid sulfate soilsBTEX Benzene, Toluene, Ethyl benzene, XyleneDEC Department of Environment and Conservation, NSWDECC Department of Environment and Climate Change, NSW (formerly DEC)DA Development ApplicationDP Deposited PlanEI Environmental Investigations (trading name of Environmental Investigations Australia Pty Ltd)EPA Environment Protection AuthorityEPA NSW Environment Protection Authority, New South Waleskm Kilometresm MetresmAHD Metres relative to Australian Height DatumNEPC National Environmental Protection CouncilNSW New South WalesOEH Office of Environment and Heritage, NSW (formerly DEC, DECC, DECCW)PAHs Polycyclic Aromatic HydrocarbonsPSI Preliminary Site InvestigationTPHs Total Petroleum HydrocarbonsTRHs Total Recoverable HydrocarbonsUST Underground Storage TankVOCs Volatile Organic Compounds

SOGO Trading Pty Ltd

Preliminary Site Investigation

2-4 Mintaro Ave,

Strathfield, NSW

Site Locality Plan

Approved:

Approx Scale:

Date:

Drawn:

29-09-15

N.T.S

J.S

T.G.

1

Project: E22638 AA

Figure:

Suite 6.01, 55 Miller Street, PYRMONT 2009

Ph (02) 9516 0722 Fax (02) 9518 5088

SITE

SITE

Approved:

Approx Scale:

Date:

Drawn:

29-09-15

JS

2

Project: E22638 AA

Figure:

TG

Figure:

Suite 6.01, 55 Miller Street, PYRMONT 2009

Ph (02) 9516 0722 Fax (02) 9518 5088

@ A31:400

SOGO Trading Pty Ltd

Preliminary Site Investigation

2-4 Mintaro Ave, Strathfield, NSW

Site Layout

Map Source:

Approximate site boundary

LEGEND

Approximate location of UPSS at adjacent service station

Preliminary Site Investigation2-4 Mintaro Avenue, Strathfield NSWReport No. E22638 AA


Appendix AProposed Development Plans

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Thermal Performance Specifications Insulation

Plasterboard on studs & AAC

Foil + R1.0 blanket

Plasterboard

As drawn (if not noted default values used)none

Windows

Ceiling Constructionnone

Building Sustainability Assessments Ph: (02) 4962 [email protected] www. buildingsustainability.net.au

Shaded areas and shade devices as drawn

Important Note for Development Applicants

SHGC U

External Wall Construction Colour (Solar Absorptance) DetailMasonry Veneer R2.0 Any

Internal Wall Construction Insulation Detail

Floor Construction Insulation Covering DetailConcrete

Insulation DetailR3.5 to ceilings adjacent to roof and decks above

Roof Construction Insulation Colour (Solar Absorptance) DetailMetal

Glass and frame type DetailArea sq mAs drawn

Skylights Glass and frame type U Area sq mSHGC Detail

External Window Cover Detail

Fixed shading - Eaves Width includes guttering, offset is distance above windowsWidth: as drawn Offset: as drawn Nominal only, refer to plan for detailFixed shading - Other Verandahs, Pergolas (type and description)

U and SHGC values are according to NFRC. Alternate products may be used if the U value is lower and the SHGC is less than 10% higher or lower than the above figures.

Any

Generic Single clear Aluminium

Once the development is approved by the consent authority, these specifications will become a condition of consent and must be included in the built works. If you do not want to include these requirements, the proposed construction varies to those detailed or need further information, please contact Building Sustainability Assessments.

For construction in NSW the BCA Vol 1 or 2 must be complied with, in particular the following:- Thermal construction in accordance with Vol 1 Section J1.2 or Vol 2 Part 3.12.1.1 - Thermal breaks in accordance with Section J1.3(d) & 1.5(c) or Part 3.12.1.2(c) & 3.12.1.4(b) - Compensating for loss of ceiling insulation in accordance with Section J1.3(c) or Part 3.12.1.2(e)- Floor insulation in accordance with Section J1.6(c) & (d) or Part 3.12.1.5(a)(iii) or (c) & (d)- Building sealing in accordance with Section J3 or Part 3.12.3.1 to 3.12.3.6.

with at construction. No loss of insulation arising from ceiling penetrations has been simulated.This assessment has assumed that the BCA provisions for building sealing will be complied

the Assessor Certificate. If they vary from drawings or other specifications this SpecificationThe following specification was used to achieve the thermal performance values indicated on

detailed below and / or clearly indicated on referenced documentation.specifications are detailed, the location and extent of the alternate specification must be specification must apply to all instances of that element for the whole project. If alternate shall take precedence. If only one specification option is detailed for a building element, that

June 2015 BSA Reference: 10339

Concrete none Any

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FINISHES SCHEDULE A Wall & Privacy Screen: painted &Coated with Dulux “LexiconQuarter”

B Wall: Face-brick “Boral Blues” C Front boxed out Features,Exposed roof slab edge: Metalbattens coated, painted withDulux “Bunker”

D Window Door Frame, FeaturedAwning, Privacy Screen : Metalframe Aluminium powder-coatedfinish with Colorbond “Night sky”

E Wall: Off-form Concrete G Balustrade: Translucent Glasswith Handrail

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D Window Door Frame, FeaturedAwning, Privacy Screen : Metalframe Aluminium powder-coatedfinish with Colorbond “Night sky”

E Wall: Off-form Concrete G Balustrade: Translucent Glasswith Handrail

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Appendix BSite Photographs



Photo 1: 2-4 Mintaro Avenue, Strathfield currently occupied by two residential dwellings.

Photo 2: Southern area of 2 Mintaro Avenue.



Photo 3: Service station immediately east and up-gradient of the site with active underground petroleum storagesystems.

.



Appendix CHistorical Property Titles Search



Appendix DGroundwater Bore Search

NSW Office of WaterWork Summary

GW105174

Licence: 10BL161850 Licence Status: ACTIVE

Authorised Purpose(s):

MONITORING BORE

Intended Purpose(s): MONITORING BORE

Work Type: Bore

Work Status:Construct.Method: Auger - Solid Flight

Owner Type:

Commenced Date: Final Depth: 7.00 mCompletion Date: 14/11/2002 Drilled Depth: 7.00 m

Contractor Name: IT ENVIRONMENTAL

Driller: Douglas Stephen Miller

Assistant Driller:

Property: MOBIL OIL 287 LIVERPOOL RDENFIELD 2136

Standing WaterLevel:

5.000

GWMA: - Salinity:GW Zone: - Yield:

Site Details

Site Chosen By:

County Parish CadastreForm A: CUMBE CUMBE.013 LT 2 DP 208597

Licensed: CUMBERLAND CONCORD Whole Lot2//208597

Region: 10 - Sydney South Coast CMA Map: 9130-3S

River Basin: 213 - SYDNEY COAST -GEORGES RIVER

Grid Zone: Scale:

Area/District:

Elevation: 0.00 m (A.H.D.) Northing: 6248889.0 Latitude: 33°53'08.3"SElevation

Source:(Unknown) Easting: 323691.0 Longitude: 151°05'36.6"E

GS Map: - MGA Zone: 0 CoordinateSource:

Unknown

ConstructionNegative depths indicate Above Ground Level; C-Cemented; SL-Slot Length; A-Aperture; GS-Grain Size; Q-Quantity; PL-Placementof Gravel Pack; PC-Pressure Cemented; S-Sump; CE-CentralisersHole Pipe Component Type From

(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details

1 Hole Hole 0.00 7.00 50 Auger - Solid Flight1 1 Casing Pvc Class 18 0.00 0.00 50 49

Water Bearing ZonesFrom(m)

To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

Page 1 of 2

28/09/2015http://allwaterdata.water.nsw.gov.au/wgen/users/181793212//gw105174.wsr.htm

Geologists LogDrillers LogFrom(m)

To(m)

Thickness(m)

Drillers Description Geological Material Comments

0.00 1.00 1.00 CLAY,ORANGE,HIGH PLASTICITY Clay1.00 7.00 6.00 SHALE,BROWN,WEATHERED,MOIST Shale

Remarks

*** End of GW105174 ***

Warning To Clients: This raw data has been supplied to the NSW Office of Water by drillers, licensees and other sources. The NOW does not verify the accuracy ofthis data. The data is presented for use by you at your own risk. You should consider verifying this data before relying on it. Professional hydrogeological advice

should be sought in interpreting and using this data.

Page 2 of 2



GW105175



MONITORING BORE


Work Type: Bore


Owner Type:


Contractor Name: IT ENVIRONMENTAL


Assistant Driller:

Property: MOBIL OIL 287 LIVERPOOL RDENFIELD 2136

Standing WaterLevel:


Site Details

Site Chosen By:





Grid Zone: Scale:

Area/District:




Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details

1 Hole Hole 0.00 5.00 50 Auger - Solid Flight1 1 Casing Pvc Class 18 0.00 0.00 50


To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

Page 1 of 2



To(m)

Thickness(m)


0.00 1.30 1.30 CLAY,L/GREY,ORANGE,FIRM Clay1.30 5.00 3.70 SHALE,ORANGE,BROWN,DRY,LOOSE Shale

Remarks

*** End of GW105175 ***



Page 2 of 2



GW105176



MONITORING BORE


Work Type: Bore


Owner Type:


Contractor Name: Drilltest Pty Ltd


Assistant Driller:

Property: MOBIL OIL 287 LIVERPOOLRD ENFIELD 2136

Standing Water Level:


Site Details

Site Chosen By:





Grid Zone: Scale:

Area/District:




Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details



To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

Page 1 of 2



To(m)

Thickness(m)


0.00 1.00 1.00 CLAY,LIGHT GREY,DAMP Clay1.00 4.00 3.00 SHALE BROWN/NON

PLASTIC,MOISTShale

Remarks

*** End of GW105176 ***



Page 2 of 2



GW105177



MONITORING BORE


Work Type: Bore


Owner Type:




Assistant Driller:




Site Details

Site Chosen By:





Grid Zone: Scale:

Area/District:




Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details

1 Hole Hole 0.00 2.00 0 Auger - Solid Flight


To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

Geologists Log

Page 1 of 2


Drillers LogFrom(m)

To(m)

Thickness(m)


0.00 1.00 1.00 CLAY,ORANGE,L/GREY,FIRM,DAMP Clay1.00 2.00 1.00 SHALE,BROWN/ORANGE,V/LOOSE,DRY Shale

Remarks

*** End of GW105177 ***



Page 2 of 2



GW105178



MONITORING BORE


Work Type: Bore


Owner Type:




Assistant Driller:




Site Details

Site Chosen By:





Grid Zone: Scale:

Area/District:




Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details

1 Hole Hole 0.00 1.00 0 Unknown


To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

Geologists Log

Page 1 of 2


Drillers LogFrom(m)

To(m)

Thickness(m)


0.00 1.00 1.00 CLAY,ORANGE,STIFF,NON PLASTIC Clay

Remarks

*** End of GW105178 ***



Page 2 of 2



GW105179



MONITORING BORE


Work Type: Bore


Owner Type:




Assistant Driller:




Site Details

Site Chosen By:





Grid Zone: Scale:

Area/District:




Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details



To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

Page 1 of 2



To(m)

Thickness(m)


0.00 1.50 1.50 CLAY,WEATHERED,DRY,CRUMBLY Clay1.50 5.00 3.50 SHALE,HARD,BROWN,LOOSE,DRY Shale

Remarks

*** End of GW105179 ***



Page 2 of 2



GW105180



MONITORING BORE


Work Type: Bore


Owner Type:




Assistant Driller:




Site Details

Site Chosen By:





Grid Zone: Scale:

Area/District:




Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details



To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

Geologists Log

Page 1 of 2


Drillers LogFrom(m)

To(m)

Thickness(m)


0.00 1.00 1.00 CLAY,RED AND GREY MOTTLED Clay1.00 2.00 1.00 SHALE,BROWN,DRY,LOOSE/CLAY

LAYERSShale

Remarks

*** End of GW105180 ***



Page 2 of 2



GW105181



MONITORING BORE


Work Type: Bore


Owner Type:




Assistant Driller:




Site Details

Site Chosen By:





Grid Zone: Scale:

Area/District:




Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details



To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

Geologists Log

Page 1 of 2


Drillers LogFrom(m)

To(m)

Thickness(m)


0.00 2.20 2.20 CLAY,GREY,FIRM,SHALE FRAG. Clay

Remarks

*** End of GW105181 ***



Page 2 of 2



GW105182



MONITORING BORE


Work Type: Bore


Owner Type:




Assistant Driller:




Site Details

Site Chosen By:





Grid Zone: Scale:

Area/District:




Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details



To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

Geologists Log

Page 1 of 2


Drillers LogFrom(m)

To(m)

Thickness(m)


0.00 1.50 1.50 CLAY GREENY GREY/SHALEFRAGMENST

Clay

1.50 2.00 0.50 SHALE DARK BROEWN Shale

Remarks

*** End of GW105182 ***



Page 2 of 2



GW105183



MONITORING BORE


Work Type: Bore


Owner Type:




Assistant Driller:




Site Details

Site Chosen By:





Grid Zone: Scale:

Area/District:




Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details



To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

Geologists Log

Page 1 of 2


Drillers LogFrom(m)

To(m)

Thickness(m)

Drillers Description GeologicalMaterial

Comments

0.00 3.50 3.50 CLAY,SOME GRAVEL,GREY,DARK BROWN Clay3.50 3.70 0.20 SHALE,DRY,POWDERY.WEATHERED,BROWN Shale

Remarks

*** End of GW105183 ***



Page 2 of 2



GW105184



MONITORING BORE


Work Type: Bore


Owner Type:




Assistant Driller:




Site Details

Site Chosen By:





Grid Zone: Scale:

Area/District:




Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details



To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

Geologists Log

Page 1 of 2


Drillers LogFrom(m)

To(m)

Thickness(m)


0.00 2.20 2.20 CLAY,GREY,ORANGE/SHALE FRAG. Clay2.20 2.30 0.10 SHALE Shale

Remarks

*** End of GW105184 ***



Page 2 of 2



GW105185



MONITORING BORE


Work Type: Bore


Owner Type:




Assistant Driller:




Site Details

Site Chosen By:





Grid Zone: Scale:

Area/District:




Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details



To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

Geologists Log

Page 1 of 2


Drillers LogFrom(m)

To(m)

Thickness(m)


0.00 0.50 0.50 FILL,YELLOW SAND Fill0.50 2.10 1.60 CLAY,L/GREY/MOIST,SOFT Clay2.10 2.20 0.10 SHALE,BROWN,WEATHERED Shale

Remarks

*** End of GW105185 ***



Page 2 of 2



GW107460



MONITORING BORE


Work Type: Bore

Work Status:Construct.Method:

Owner Type:


Contractor Name:Driller: Geoff Trippett

Assistant Driller:

Property: AMPOL LIMITED 289LIVERPOOL RD ENFIELD 2136NSW



Site Details

Site Chosen By:

County Parish CadastreForm A: CUMBE CUMBE.13 1 949600


Region: 10 - Sydney South Coast CMA Map:River Basin: - Unknown Grid Zone: Scale:

Area/District:


Source:Unknown Easting: 323641.0 Longitude: 151°05'34.6"E


Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details

1 Annulus (Unknown) 0.00 0.00 Graded1 1 Opening Slots -

Horizontal0.00 0.00 50 1 PVC Class 18, A: 4.00mm


To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

2.00 5.00 3.00 Unknown

Page 1 of 2



To(m)

Thickness(m)


0.00 3.00 3.00 CLAY Clay3.00 5.00 2.00 SANDSTONE Sandstone

Remarks

*** End of GW107460 ***



Page 2 of 2



GW107461



MONITORING BORE


Work Type: Bore


Owner Type:



Assistant Driller:


Standing Water Level: 3.400


Site Details

Site Chosen By:




Area/District:




Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details




To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

3.50 6.00 2.50 Unknown 3.40

Page 1 of 2



To(m)

Thickness(m)


0.00 3.00 3.00 FILL Fill3.00 6.00 3.00 SHALE Shale

Remarks

*** End of GW107461 ***



Page 2 of 2



GW107462



MONITORING BORE


Work Type: Bore


Owner Type:



Assistant Driller:




Site Details

Site Chosen By:




Area/District:




Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details




To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

4.00 6.50 2.50 Unknown 3.90

Page 1 of 2



To(m)

Thickness(m)


0.00 0.20 0.20 CONCRETE Fill0.20 0.50 0.30 FILL Fill0.50 2.50 2.00 WEATHERED CLAY Clay2.50 6.50 4.00 WEATHERED SHALE/SHALE Shale

Remarks

11/03/2011: Karla Abbs, 11-Mar-2011: Replaced invalid codes in Drillers Log

*** End of GW107462 ***



Page 2 of 2



GW107463



MONITORING BORE


Work Type: Bore


Owner Type:



Assistant Driller:




Site Details

Site Chosen By:




Area/District:




Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details




To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

3.50 6.20 2.70 Unknown 3.90

Page 1 of 2



To(m)

Thickness(m)


0.00 0.20 0.20 FILL Fill0.20 1.50 1.30 CLAY Clay1.50 6.20 4.70 SHALE Shale

Remarks

09/05/2005: Form A Remarks:Low yield.

*** End of GW107463 ***



Page 2 of 2



GW107464



MONITORING BORE


Work Type: Bore


Owner Type:



Assistant Driller:




Site Details

Site Chosen By:




Area/District:




Unknown


(m)To(m)

OutsideDiameter(mm)

InsideDiameter(mm)

Interval Details




To(m)

Thickness(m)

WBZ Type S.W.L.(m)

D.D.L.(m)

Yield(L/s)

HoleDepth(m)

Duration(hr)

Salinity(mg/L)

3.80 5.50 1.70 Unknown 3.50

Page 1 of 2



To(m)

Thickness(m)


0.00 0.20 0.20 ASPHALT Ash0.20 0.50 0.30 FILL Fill0.50 1.00 0.50 CLAY Clay1.00 5.50 4.50 WEATHERED SHALE Shale

Remarks

09/05/2005: Form A Remarks:Low yield.11/03/2011: Karla Abbs, 11-Mar-2011: Replaced invalid codes in Drillers Log

*** End of GW107464 ***



Page 2 of 2


PRELIMINARY SITE INVESTIGATION 2-4 MINTARO … · PRELIMINARY SITE INVESTIGATION 2-4 MINTARO...

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