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PRELIMINARY SITE INVESTIGATION FOR 155 KITE STREET, ORANGE, NSW PROPERTY NSW

19 DECEMBER 2018 118124 VERSION 2

21 December 2018

Property NSW Level6 66 Harrington Street The Rocks Sydney NSW 2000

Attention: Adam Smith Environmental Consultant

Dear Adam

Stage 1 Preliminary Site Investigation at 155 Kite Street, Orange, NSW

Please find enclosed a copy of our report entitled as above. Thank you for the opportunity to undertake this work.

Based on a desktop assessment and site inspection, there is a low risk of contamination associated with current and historical site uses. No intrusive works are recommended at this stage.

Should you have any queries, please do not hesitate to contact us on (02) 9922 1777.

For and on behalf of Environmental Earth Sciences NSW

Author Zhuang Zhao Environmental Scientist

Project Manager/ Internal Reviewer Elin Griffiths Associate Environmental Scientist

Project Director Mauricio Bressan NSW Manager

118124_V2

SGS SGS SGS SGS

EXECUTIVE SUMMARY

Introduction and objectives Environmental Earth Sciences was engaged by Property NSW to undertake a Stage 1 Preliminary Site Investigation (PSI) of the property located at 155 Kite Street, Orange, NSW (Lot 11 DP 1002968) (the "site"). Our assessment comprised a desktop review coupled with a site walkover to identify the potential for soil and / or groundwater contamination at the site. The PSI is required to assist the future Development Application (DA) for change of use and minor building works for the site, which in turn will enable the lease of the existing building.

In accordance with e he requirements of the National Environment Protection Council (NEPC)2013, National Environment Protection (Assessment of Site Contamination) Amendment Measure 2013 (ASC NEPM, 2013) this assessment aimed to identify:

• Sources of contamination, historical contaminating uses and impacted areas;

• Contaminants of concern associated with identified sources of impact or contaminated areas;

• Affected media (soil, sediment, groundwater, surface water, indoor and ambient air); and

• Human and ecological receptors.

Findings Assessment was undertaken to ascertain current/ historical contaminating activities at the site and included conducting a search of available desktop information and site inspection. The findings of this desktop search did not indicate past industrial uses at the site which may have resulted in gross contamination to underlying soils or groundwater.

The site inspection did not identify any contamination or contaminating uses that could have potentially impact underlying soil or groundwater. Key findings from the site inspection include:

• Small amounts of household waste were observed locally across the site;

• Minor spillages of engine fuel with minimal hydrocarbon staining on areas of hardstanding, likely from historic parking of vehicles;

• The electrical board on the outside of the shed on site was identified as potentially containing asbestos.

There were no records of bulk chemicals being stored or licensed to be used at the site. As the site is predominantly surfaced in concrete, which appeared to be in fair condition and mostly sealed (except for small areas), the potential of any impact to underlying soils or groundwater from previous uses of site (including storage of small quantities of oils, car inspections, etc.) is considered to be low. The presence of the off-site adjacent railway line

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was identified as a potential source of contamination, potentially including hydrocarbons, such as polycyclic aromatic hydrocarbons (PAH) and total recoverable hydrocarbons (TRH)AH, TRH), heavy metals, asbestos and herbicides.

Conclusion and recommendations Based on the findings of this report, a Phase 2 OSI is not recommended at this stage. If any unexpected findings of contamination and/or contamination sources are encountered during demolition / construction at the site, it is recommended that these be managed as an unexpected find and assessed by a suitably qualified Environmental Consultant to assess the risk profile and determine remediation requirements.

This executive summary is not a standalone document and should be read in conjunction with the rest of this report.

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TABLE OF CONTENTS

INTRODUCTION AND OBJECTIVES

FINDINGS

CONCLUSION AND RECOMMENDATIONS

TABLE OF FIGURES

TABLES

APPENDICES

II

IV

IV

IV

1 INTRODUCTION 1

2 OBJECTIVES 1

3 SCOPE OF WORK 2

4 SITE IDENTIFICATION AND SETTING 2

4.1 LOCATION AND PROPERTY DESCRIPTION 2

4.2 SITE SURROUNDS 3

4.3 SENSITIVE RECEPTORS 3

4.4 TOPOGRAPHY AND VEGETATION 4

4.5 REGIONAL GEOLOGY 4

4.6 SOIL 4

4.7 ACID SULFATE SOILS AND SALINITY RISK 4

4.8 HYDROGEOLOGY AND DRAINAGE 5

4.8.1 Groundwater dependent ecosystems 6

4.9 FLOOD RISK 6

4.10 CLIMATE AND METEOROLOGY 6

5 HISTORICAL REVIEW 6

5.1 HISTORICAL AERIAL PHOTOGRAPH REVIEW 6

5.2 REVIEW OF HISTORICAL TITLE CERTIFICATES 7

5.3 COUNCIL PLANNING CERTIFICATE 8

5.4 SAFEWORK NSW HAZARDOUS CHEMICALS SEARCH 8

5.5 NSW EPA CONTAMINATED SITES REGISTER 8

5.6 UNDERGROUND PETROLEUM STORAGE SYSTEM REGULATION - SENSITIVE ZONES MAP 8

6 SITE OBSERVATION 9

7 POTENTIAL FOR CONTAMINATION AND CONCEPTUAL SITE MODEL 9

7.1 SOURCES OF CONTAMINATION 10

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7.2 PATHWAYS

7.3 RECEPTORS

7.4 SOURCE TO RECEPTOR LINKAGES

10

10

11

8 CONCLUSION AND RECOMENDATIONS 12

9 LIMIT A TIO NS 12

10 REFERENCES 13

Table of Figures Figure 1: Site location plan

Tables Table 1: Site identification

Table 2: Registered bore information

Table 3: Average monthly climate data

Table 4: Review of aerial photographs

Table 5: Summary of Title Certificates

Appendices APPENDIX A: Additional information

APPENDIX B: Historical documents

APPENDIX C: Photo plates

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1 INTRODUCTION

Environmental Earth Sciences NSW (Environmental Earth Sciences) was commissioned by Property NSW to undertake a Stage 1 Preliminary Site Assessment (PSI) for the property located at 155 Kite Street, Orange, NSW (Lot 11 DP 1002968) (the "site"). Based on the information provided by Property NSW it is understood that the site is in the process of being sold. The PSI is required to assist the future Development Application (DA) for change of use and minor building works for the site, which in turn will enable the lease of the existing building.

In accordance with the requirements of the National Environment Protection Council (NEPC) 2013, National Environment Protection (Assessment of Site Contamination) Amendment Measure 2013 (ASC NEPM, 2013), this PSI aims to identify potential:

• Sources of contamination, historical contaminating uses and impacted areas;

• Contaminants of concern associated with identified sources of impact or contaminated areas;

• Affected media (soil, sediment, groundwater, surface water, indoor and ambient air); and

• Human and ecological receptors.

The purpose of collecting basic site information is to develop an initial conceptual site model (CSM) for contamination, which following assessment, review of site history, physical setting and site conditions will ascertain any risk linkages.

This report should be read in conjunction with the assumptions contained within the proposal (ref: PO118189, emailed 30 October 2018) and the limitations at the end of this report.

2 OBJECTIVES

The objective of this PSI is to conduct a desktop study, site walkover and PSI report to assess the potential for site contamination through the identification of potential contamination sources and potential contaminants of concern.

This assessment is based on a desktop review and site walkover. Findings of this assessment will inform whether a Phase 2 Detailed Site Investigation (OSI) and/ or a Remediation Action Plan (RAP) are required.

Findings will inform the contamination risk to human health and the environment. The findings will also inform if there is a need for further intrusive investigation or remediation to make the site suitable for sale.

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3 SCOPE OF WORK

Works undertaken to ascertain current and historical contaminating activities at the site consisted of:

• Desktop review including:

o Review of soil, topography, geology, hydrogeology, surface water and salinity;

o Review the NSW Office of Water records on registered groundwater bores within 500 m from the site, to assess likely groundwater depths and quality (if available);

o Review of historical aerial photographs;

o Historical title search;

o Review of Council planning certificate;

o SafeWork NSW search for Hazardous Chemicals stored onsite; and

o NSW EPA search of register of notified properties under the Contaminated Land Management act 1997 (CLM Act) subject to investigation/ remediation orders.

• Conduct a site walkover to (excludes any intrusive investigation):

o Identify site features, any potential activities or environmental concern and any visible indicators of potential contamination (e.g. staining, odours, etc.).

o Inspect the interior of any accessible buildings.

• PSI Report (electronic PDF):

o Provision of a Stage 1 PSI report detailing findings. The report will include recommendations in relation additional assessments and management of contamination (if required).

4 SITE IDENTIFICATION AND SETTING

4.1 Location and property description The site is located at 155 Kite Street, within an area currently zoned as B6 -- Enterprise Corridor, Orange, NSW. This site has a long history of use for public utility as a component of local rail way system. Site identification details are provided in Table 1 below.

Table 1: Site identification

Item

Site Owner

Address

Lot & plan number

Area

Zoning

Local Government Authority

Site location, layout and features

Details

Government Property NSW

155 Kite Street, Orange, NSW, 2800

Lot 11 DP 1002968

Approximately 1050 m2

B6, Enterprise Corridor

Orange City Council

Figure 1 and Appendix C

4.2 Site surrounds The following adjacent land use was observed at the time of inspection:

• North: Commercial buildings with residential properties beyond; Caltex petrol station is on the northern side of the Mitchell Highway and located 350 m on the north-east of the site. Beyond are residential premises as well as a restaurant/bar and other commercial premises.

• South: Orange rail station is directly to the southwest of site. A footbridge over the rail line borders the southern end of the site with a public carp park to the south east and railway sidings beyond to the south.

• East: Commercial buildings and residential premise border the site to the easts. Suma Park reservoir and Summer Hill Creek is approximately 3.5 km on the south of the site, and;

• West: The rail line borders the site the west in a north to south orientation. Beyond are commercial buildings and residential properties.

4 3 Sensitive receptors The nearest sensitive human receptors to the site are:

• Site occupants and site visitors

• The commercial and residential premises surrounding the site

• Workers/ passengers in Orange train station adjacent to the site.

The nearest sensitive environmental receptors to the site are:

• Robertson Park 290 m to the northwest of the site

• Colvin Park approximately 223 m to the east of the site

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• Blackmans swamp creek 368 m to the northwest of the site

• Wade Park 254 m to the southwest of the site

• East Orange Creek located approximately 397 m to the east of the site

• Memory Park 368 m to the southeast of the site

4.4 Topography and vegetation Local relief in this area according to the Orange 1: 100 000 Geological series sheet 8731 (Meakin et al, 1997) (eSPADE NSW Government, 2018) is undulating low hills from 750-900 m above sea level, in parts steep and rocky, with slopes 6--10%, occasionally to 30%. Local relief averages 40 m, ranging from 20-60 m.

Native vegetation is savannah woodlands with yellow box communities. Blakely's red gum, grey box, apple box, bastard box and broad-leaved peppermint on lower areas.

4.5 Regional geology As described in the Orange 1: 100 000 Geological series sheet 8731 (Meakin et al, 1997), the site is subjected to build-up area which situated upon Ordovician aged Caboone Group, subgroup of the Oakdale Formation. This subgroup generally consists of mafic volcanic sandstone, basalt, siltstone, black shale, chert, breccie and conglomerate.

4.6 Soil The soils observed at the site incorporate soils classified in the interactive website eSPADE from the NSW Office of Environment & Heritage as belonging to the erosional North Orange Soil Landscape. A soil landscape is an area of land that has recognisable and specifiable topographies and soils.

The soil landscape of the area is characterised by undulating to rolling low hills north of Orange with red earth on upper slopes and shallow lithosols on crests and side slopes. Yellow earths appear on lower slopes with brown solodic and yellow solodic soils in drainage depressions. Other soils include non-calcic brown soils, red and brown podzolic, gravelly earths and yellow solonetzic soils.

As the site and surrounds have been modified for urban expansion and use, it would be unlikely that much representative natural soil landscapes remain.

Please see Appendix A for additional information on the North Orange landscape.

47 Acid sulfate soils and salinity risk A search using the NSW Government Sharing and Enabling Environmental Data ( SEED) interactive website has shown that the site is not identified as being within an acid sulfate soil management zone.

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According to eSPADE soil profile report of nearby areas there is "no salting evident" and so no known salinity risk at the site location.

4.8 Hydrogeology and drainage A search on the NSW Department of Primary Industries Office of Water website indicated that there are 15 groundwater wells or monitoring bores located within 500 m of the site. The details of the registered bores information are shown in Table 2.

A number of drainage channels are fixed and widely spaced from 650-1000 m apart. The catchment boundary between the Bell and Macquarie River systems bisects the soil landscape of the site. The upper reaches of the drainage tracts have slopes of 5-7%, but the slopes decrease down to 1--2% in the lower reaches.

The site is almost completely covered over with buildings and concrete therefore it is unlikely that any potential contamination from any industrial processes would infiltrate into underlying soils. Storm water pits throughout the site for site drainage. Therefore, any precipitation would flow toward the stormwater drainage infrastructure initially on the roof of the current buildings, prior to it being diverted through downpipes into the stormwater system.

Table 2: Registered bore information

Registered Direction Distance Water Aquifer Licence Depth of bore bearing zone

Bore ID from site from site(m) (mBGL) (m) lithology Status

GW804286 Northwest 85.0 7.0 5.0-7.0 Sandy clay Active

GW804287 Northwest 80.0 7.0 50-70 Sandy clay Active

GW804288 Northwest 90.0 7.0 50-70 Sandy clay Active

GW804289 Northwest 115.0 6.0 4.0-60 Clay Active

GW804290 Northwest 110.0 6.0 4.0-6.0 Clay Active

GW016917 Northwest 279.3 13.0 11.3-12.8 Diorite

GW804471 Southeast 205.3 11.0 7.6 (SWL) Clay Active

GW804472 Southeast 192.5 10.8 7.6 (SWL)- Clay Active

GW804473 Southeast 194.2 10.8 7.3 (SWL)-- Clay Active

GW804474 Southeast 175.1 11.0 7.0(SWL) Clay Active

GW804475 Southeast 239.1 11.0 Active



GW802310 North 485.6 31.0 12.0-20.0 Shale Cancelled

11 0-11.2 11.0-13.0is

GW803867 Southwest 471.2 83.0 13.0-13.3 Shale;

Converted 13.0--75.0is

70.0-75.0 Andesite

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4.8.1 Groundwater dependent ecosystems An assessment of the map of groundwater dependent ecosystems (http//www bom gov au/water/groundwater/gde/map_shtml - accessed 12/12/18) indicates that the study area no known terrestrial, aquatic or subterranean groundwater dependant ecosystems are reliant upon the site.

4.9 Flood risk According to Flood Planning Map Sheet FLD_008C (Appendix A), the site is not highlighted on Orange Local Environmental Plans (LEP) as being in a flood prone area that would require additional management.

4.10 Climate and meteorology Regional meteorological data has been sourced from the Bureau of Meteorology (2018) (www.bom.gov.au, verified 05/12/2018) with rainfall data received from Orange Agricultural Institute weather station, located approximately 4.3 km from site. Mean maximum and minimum temperatures were also received from Orange Agricultural Institute weather station. Mean maximum and minimum monthly temperatures were calculated from 1976 - present and mean monthly rainfall was calculated between 1966 - present. This information is presented in Table 3.

Table 3: Average monthly climate data

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Maximum Temperature 26.6 25.9 22.8 18.6 14.2 10.6 9.5 111 14.2 18.0 21.3 24.6 (c)

Minimum Temperature 13.3 13.2 10.7 7.3 4.6 2.6 1.5 2.1 4.2 6.6 9.2 11.3 (°c)

Rainfall (mm) 87.3 74.6 64.2 52.0 67.2 73.9 88.9 94.1 79.3 79.0 75.6 80.9

5 HISTORICAL REVIEW

5.1 Historical aerial photograph review The earliest historical photograph available for the site is from 1964. This reveals the area to be similar to current land uses, with a mixture of residential and commercial properties. A review of aerial photographs and other available imagery of the site is presented in Table 4. Historical aerial photographs are presented in Appendix B.

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Table 4: Review of aerial photographs

Year

1964

1972

1984

1989

2014

2018

Colour I B&W

B&W

B&W

B&W

Colour Surroundings broadly as above.

1993 Colour Similar to previous.




Colour

Colour

Notes

Site is occupied by two buildings in the southern half of the site. Immediately to the west is rail line. Orange railway station is located to the south-west of the site with railway sidings to the south. Site surroundings are predominantly urbanised with residential and commercial land use.

The two buildings in the southern half of the site are replaced with an irregular shaped building along the northern and eastern boundaries. Site surroundings are similar to previous.

The building along the northern site boundary remains the same. The eastern building extends into the central area of the site. The site surroundings are similar to previous

Broadly as above. The surface appears to be covered by hard-standing with a number of vehicles parked within the central area.

Onsite is similar to previous. However, the buildings are separated and disconnected into two with a strip of bare land on the north-eastern corner of the site. The immediate surrounds have additional residential/ commercial buildings.

Similar to previous.

Notes: Historical imagery sourced from Land Insight & Resources.

5.2 Review of historical title certificates A review of Historical Title Certificates is presented in Table 5. The land use in this area of Orange has been used for public utility since the late 1800's. Historical titles are presented in Appendix B.

Table 5: Summary of Title Certificates

Lot on plan Date of

Acquisition and term held

20.12.1881 Lot 11 DP 1002968

17.10.2015

09032017

Registered Proprietor(s) & Occupations where available

Commissioner for Railways Intervening name changes, now Rail Corporation New South Wales

Transport for New South Wales

Property NSW

Reference to Title at Acquisition and sale

Book 236 No. 394 Now

11/1002968

11/1002968

11/1002968

Notes: 27 08 1999 (D.P. 10029868), Easement for overhead Communication Lines variable width.

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5.3 Council planning certificate In relation to Section 59 (2) of the Contaminated Land Management Act 1997, the Council Planning Certificate (Section 10.7 [2] & [5] under the Environmental Planning and Assessment Act, 1979), states that the land:

• Is not significantly contaminated within the meaning of that Act at the date when the certificate was issued;

• Is not subject to a management order within the meaning of that Act at the date when the certificate was issued;

• Is not the subject of an approved voluntary management proposal with the meaning of that Act when the certificate was issued;

• Is not the subject of an ongoing maintenance order within the meaning of that Act when the certificate was issued;

• Is not the subject of a site audit statement within the meaning of that Act if a copy of such a statement has been provided at any time to the local authority issuing the certificate;

• No development consents have been issued with respect to the land within the previous five years, and

• The current approved use of the property is public utility undertaking (former State Rail property)

The council planning certificate is located in Appendix B.

5.4 SafeWork NSW Hazardous Chemicals Search A review of SafeWork NSW records has not located any records pertaining to the site. The Hazardous Chemicals Search confirmation is located in Appendix B.

5.5 NSW EPA contaminated sites register A search of the NSW EPA contaminated land public record database showed no notices or records for the site.

5.6 Underground petroleum storage system regulation - sensitive zones map

Review of the NSW EPA (2010) underground petroleum storage system (UPSS) regulation sensitive zones map for Council indicated that the site is located within a sensitive zone. The above-mentioned map is located in Appendix B.

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6 SITE OBSERVATION

A site walkover was undertaken on 4 December 2018 by Environmental Earth Sciences to assess the conditions of site. Photographs of site taken during the inspection are presented in Plates 1 to 10 (Appendix C) at the end of this document.

The site is located off Endsleigh Avenue and surrounded by Dubbo Sydney railway line to the west; car park and grass to the south; residential and commercial properties to the east and north of the site. Overall, the entire open area was covered with bitumen and contained two galvanised sheds (Plate 1).

To the northern boundary, a larger shed appeared to be used for storage and was divided into five bays (Plate 2). The shed was constructed of galvanised steel with timber and steel frame. The entire shed was surfaced with a concrete floor with minimal hydrocarbon staining (Plate 3 to 5). Vegetation showed no significant indications of contaminant such as die-back or browning or stunted growth. Exotic tree on site in the north western corner was vibrant and developed. The northeastern corner of the site was covered. A number of household waste items such as bottles and tins in plastic bags were observed in this area, under the tree (Plate 6).

Along the eastern boundary, the smaller shed appeared to be in use as an office, kitchenette and toilet. Shed was a galvanised iron construction. Lining appeared to be masonite material which had been burnt on the exposed section. It is considered possible that asbestos sheeting may have been used in the office, kitchenette and toilet, however this could not be confirmed as the shed was boarded up. Material lagging was used on exposed water pipes. Electrical board on the outside of shed may contain an asbestos backboard (Plate 7). Exposed floors were concrete, and carpet was observed in the office.

Steel pedestrian bridge over the railway demarked the southern boundary of the site. Main sewer line with breather pipe on south western boundary near entrance (Plate 8). A stockpile of gravel was present in the southern area of the site, adjacent to the railway bridge (Plate 9).

The western boundary of the site was open to the adjacent railway line, a large electrical box was noted probably for the electrical lightening along the train line (Plate 10). Possible fill material was observed on the side of the embankment indicated a yellow brown clay with gravel < 10-15%. But there is no indication of ash or potential contaminants in the fill material along the exposed embankment face.

No indication of above or below ground fuel tanks had been stored on site. No breather pipes, fill points or bunded areas were detected. No potential asbestos fragments were observed across the surface or indicators of potential significant contamination.

7 POTENTIAL FOR CONTAMINATION AND CONCEPTUAL SITE MODEL

A CSM can be formed by considering the geophysical characteristics at play at the site, the contaminant source, potential receptors and the pathways to receptors. The CSM, as

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required by the ASC NEPC (2013), is an iterative process constantly being updated during the investigation process as more information becomes available.

7.1 Sources of contamination Based on the findings of the desk study and the site inspection, no gross contamination or significant potential sources of contamination were identified. No above ground storage tanks or visual staining, indicative of hydrocarbon contamination was evidenced.

Small amounts of household waste were observed locally across the site.

Minor spillages of engine fuel with minimal hydrocarbon staining considered to be the result of vehicles which had been previously parked in the larger shed on the north boundary were identified. However, this is considered to pose a very low risk due to the sealed concrete floor slab which provides a break in pathway between potential contamination and the underlying soil.

The electrical board on the outside of the shed on site was identified as potentially containing asbestos. Whilst ACM fragments were not visually identified at surface across the site, given the age of the existing buildings, there is the likelihood that asbestos containing materials may be present in existing building materials.

There were no records of bulk chemicals being stored or licensed to be used at the site. Based on this, no significant contemporary or historical sources of contamination are anticipated. With the site being constructed slab-on-ground and mostly sealed (except for limited areas), the chances of any impact to underlying soils or groundwater from previous uses of site (including storage of small quantities of oils, car inspections, etc.) is considered to be low.

The presence of the off-site adjacent railway line has the potential to be a source of contamination, potentially including hydrocarbons (PAH, TRH), heavy metals, asbestos and herbicides.

7.2 Pathways Potential pathways at the site include:

• Direct contact (dermal);

• Inhalation and/or ingestion;

• Vertical and lateral migration of potential contaminants through the soil; and

• Migration of contaminants in the groundwater and onsite drainage systems.

7.3 Receptors Human receptor at the site include:

• End users of the site;

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• Maintenance/ construction workers; and

• Neighbours and general public.

Ecological receptors at the site include:

• Underling soil processes and soil fauna;

• Underlying groundwater; and

• Nearby surface water creeks. However, these were considered to be at negligible risk of exposure from the site as they were located in excess of 250 m from the site.

7.4 Source to receptor linkages With the exception of ACM, no significant current/ historical sources of contamination were identified, and no significant visual contamination was noted during inspection. Therefore, the likelihood of gross contamination is considered low.

The chances of any contamination impact to underlying soils or groundwater is very low, as the site is constructed slab-on-ground, therefore providing a break in pathway between potential sources of contamination and underlying soils.

If the sources of ACM are disturbed by breaking through construction or maintenance, then this could potentially make the contamination airborne and particles may then pose a hazard to site visitors and maintenance / construction workers.

The presence of the adjacent railway corridor along the western boundary of the site poses a potential low risk to the soils beneath the site.

The source to receptor linkages that exist for the site are summarised in Table 6 below.

Table 6: Risk rating summary

RISK RATING HIGH MODERATE 2 MODERATE 1 LOW

Overall Site Environmental Risk

• Onsite soil contamination

• Historical Site Uses

• Asbestos Risk

X

X

X

• Off-site railway corridor X

Notes: 1 High risk: The desktop review and site inspection have identified potentially contaminating site activities and intrusive

works must be carried out to confirm the presence or absence of contamination 2. Moderate risk: The desktop review and site inspection cannot rule out the presence of potentially contaminating site

activities without undertaking recommended intrusive works 3. Moderate 1: the potential for contamination is limited in either likelihood or extent and the presence or absence of

contamination is expected to be resolved by targeted sampling

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4. Moderate 2: the potential for contamination is greater or more extensive than Moderate 1 and will require a detailed site investigation to confirm the presence or absence of contamination

5. Low risk: The desktop review and site inspection have not identified any potentially contaminating site activities

8 CONCLUSION AND RECOMENDATIONS

Environmental Earth Sciences consider that there is an overall Low risk relating to contamination on site associated with current and former uses.

Minor spillages of engine fuel likely from vehicles which had been previously parked in the underground carpark are considered to pose a very low risk and there were no records of bulk chemicals being stored or licensed to be used at the site. The chances of any contamination impact to underlying soils or groundwater is very low, with the site being constructed over a sealed carpark.

As a result of this PSI, further investigation to assess for potential chemical contamination is not recommended at this stage.

In relation to potential ACM, if this material is required to be disturbed and removed, it is recommended that any hazardous building materials which may be disturbed should be removed by an appropriately licensed contractor prior to the commencement of works.

During any proposed redevelopment there is a potential for unexpected subsurface finds (as is the case for any site), and consequently Environmental Earth Sciences recommends that these occurrences can be managed accordingly through the implementation of appropriate management documents (such as an Unexpected Findings Protocol).

9 LIMITATIONS

This report has been prepared by Environmental Earth Sciences NSW ACN 109 404 006 in response to and subject to the following limitations:

1. The specific instructions received from Property NSW;

2. The specific scope of works set out in PO 118189 issued by Environmental Earth Sciences NSW for and on behalf of Property NSW, is included in Section 4 (Scope of work) of this report;

3. May not be relied upon by any third party not named in this report for any purpose except with the prior written consent of Environmental Earth Sciences NSW (which consent may or may not be given at the discretion of Environmental Earth Sciences NSW);

4. This report comprises the formal report, documentation sections, tables, figures and appendices as referred to in the index to this report and must not be released to any third party or copied in part without all the material included in this report for any reason;

(@ ENVIRONMENTAL EARTH ' SCIENCES,, ••••• 5. The report only relates to the site referred to in the scope of works being located at 155

Kite Street, Orange, NSW ("the site");

6. The report relates to the site as at the date of the report as conditions may change thereafter due to natural processes and/or site activities;

7. No warranty or guarantee is made in regard to any other use than as specified in the scope of works and only applies to the depth tested and reported in this report;

8. Fill, soil, groundwater and rock to the depth tested on the site may be fit for the use specified in this report. Unless it is expressly stated in this report, the fill, soil and/or rock may not be suitable for classification as clean fill, excavated natural material (ENM) or virgin excavated natural material (VENM) if deposited off site;

9. This report is not a geotechnical or planning report suitable for planning or zoning purposes; and

10. Our General Limitations set out at the back of the body of this report.

10 REFERENCES

Assessment of Site Contamination National Environment Protection Measure (ASC NEPM) 2013, Schedule B(1): Guidelines on the Investigation Levels for Soil and Groundwater.

Bureau of Meteorology, Australian Government website (accessed 12 December 2018) http://www bom gov au/

Meakin N.S., Spackman J.M., Scott M.M., Watkins J.J., Warren AYE, Glen RA, Moffit RS. and Krynen J.P., 1997, Orange 1:100 000 Geological Sheet 8731, 1st edition. Geological Survey of New South Wales, Sydney & Geoscience Australia, Canberra.

NSW Department of Primary Industries Office of Water (2018) accessed 12 December 2018, http//allwaterdata .water nsw.gov. au/water stm

NSW Environmental Protection Agency, 2018, "UPSS environmentally sensitive zone maps" accessed 12 December 2018, https://www.epa nsw gov au/yourenvironment/ cont am I nated-I and/preventing-co ntam i nated-I and/upss/u pssexem ptions/ sensitive-zone-maps

NSW EPA Contaminated Land Register 2018, accessed 12 December 2018, https/ /apps epa. nsw.gov au/prclmapp/searchreg ister. aspx

NSW Government 2018, Sharing and Enabling Environmental Data (SEED), accessed 12 December 2018, https//www seed.nsw.gov au/

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ENVIRONMENTAL EARTH SCIENCES GENERAL LIMITATIONS Scope of services The work presented in this report is Environmental Earth Sciences response to the specific scope of works requested by, planned with and approved by the client. It cannot be relied on by any other third party for any purpose except with our prior written consent. Client may distribute this report to other parties and in doing so warrants that the report is suitable for the purpose it was intended for. However, any party wishing to rely on this report should contact us to determine the suitability of this report for their specific purpose.

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Subsurface conditions change Understanding an environmental study will reduce exposure to the risk of the presence of contaminated soil and or groundwater. However, contaminants may be present in areas that were not investigated, or may migrate to other areas. Analysis cannot cover every type of contaminant that could possibly be present. When combined with field observations, field measurements and professional judgement, this approach increases the probability of identifying contaminated soil and or groundwater. Under no circumstances can it be considered that these findings represent the actual condition of the site at all points.

Environmental studies identify actual sub-surface conditions only at those points where samples are taken, when they are taken. Actual conditions between sampling locations differ from those inferred because no professional, no matter how qualified, and no sub-surface exploration program, no matter how comprehensive, can reveal what is hidden below the ground surface. The actual interface between materials may be far more gradual or abrupt than an assessment indicates. Actual conditions in areas not sampled may differ from that predicted. Nothing can be done to prevent the unanticipated However, steps can be taken to help minimize the impact For this reason, site owners should retain our services.

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To the maximum extent permitted by law, we exclude all liability of whatever nature, whether in contract, tort or otherwise, for the acts, omissions or default, whether negligent or otherwise for any loss or damage whatsoever that may arise in any way in connection with the supply of services. Under circumstances where liability cannot be excluded, such liability is limited to the value of the purchased service.

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FIGURES

Legend: = Approximate Site Location

L = Approximate Site boundary

(@ ENVIRONMENTAL EARTH GN SCIENCES

Title: Site Locality Map

Location 155 Kite Street, Orange, NSW,

Client Property NSW Job No: 118124 Drawn By: EG Scale Not to scale Source: Google Earth Pro Proj Man: EG Date December 2018 Figure 1

6-'i\ ENVIRONMENTAL EARTH ' SCIENCES ••••••

APPENDIX A: ADDITIONAL INFORMATION

I no NORTH ORANGE Erosional I

GENERAL: Undulating to rolling low hills north of Orange with red earths (Gn2. I 1, Gn2. I 4) on upper slops and shallow lithosols (Uc6, Uc4) on crests and sideslopes. Yellow earths (Gn2.34, Gn2.24) appear on lower slopes with brown solodic and yellow solodic soils (Db1.42, Db2.22, Dy3.4 I, Dy3.42) in drainage depressions. Other soils include non-calcic brown soils (Dr2.22, Db1.22), red and brown podzolic (Dr2.21, Dr2.1 I, Dbl.41), gravelly earths (Gn2.14, Dn2.2, Dn2.4, Gn2.7) and yellow solonetzic soils (Dy3.43). Elements ofTowac (K-to) occur in this soil landscape. CLIMATIC ZONE: I OA LANDFORM: Undulating low hills from 750-900 m above sea level, in parts steep and rocky, with slopes 610%, occasionally to 30%. Slopes re from 100-100 m long, averaging 450 m. Local relief averages 40 m, ranging from 20-60 m. The drainage channels are fixed and widely spaced from 650-1000 m apart. The catchment boundary between the Bell and Macquarie River systems bisects this soil landscape. The upper reaches of the drainage tracts have slopes of 57%, but the slopes decrease down to 1-2% in the lower reaches. NATIVE VEGETATION: Savannah woodlands with yellow box communities. Blakely's red gum, grey box, apple box, bastard box and broad-leaved peppermint on lower areas. GEOLOGY: Geological Unit:

Parent Rock:

Parent Material:

Molong Geanticline, northern province of the Angullong Tuff and part of the Links Andesite. Medium to soft metasediments including slates, phyllites and siltstones on the Orange Shale Beds, which are largely derived from andesitic volcanics; welded tuffs of intermediate composition, agglomerates, conglomerates and andesitic volcanics which often outcrop in ridges on a north-east to north west axis. Other rocks include coarse grained intermediate rocks and some ultrabasics associated with the Links Andesite. in situ and colluvial-alluvial materials derived from the parent rocks. Depth of surface materials range from O to more than I m on crests to more than

120

4 m on lower slopes and drainage depressions. Older, more highly weathered materials and in situ materials associated with weathered rocks.

GENERAL SOIL DESCRIPTIONS: RED EARTHS Topsoil:

Subsoil:

Brown to dull reddish brown fine sandy loam to loam with weak structure; pH 6.0-7.0; I0-25cm depth. A2 horizon present in 50% of profiles. Dull brown fine sandy loam with weak structure; pH 5.5. Clear to gradual change to dark red to reddish brown loam or fine sandy clay loam with weak structure; pH 5.5-7.0. At depth light medium clay; moderate structure with iron and manganese nodules; pH 5.0-7.5.

YELLOW EARTHS Topsoil: Dark to dull brown fine sandy loam with weak structure; friable when moist;

pH 5.0-5.5. Dull brown or yellow-orange bleached (dry) fine sandy loam to silt loam which is massive or is weakly structured; pH 5.5; to 25-30 cm depth.

Subsoil: Clear change to bright yellowish brown loam fine sandy loam to clay loam with weak structure; pH 5.0-5.5; to 90 cm depth. Gradual change to dull yellow-orange mottled reddish brown and yellowish clay loam with weak structure; pH 5.0. Pockets of weathered schist.

YELLOW SOLODIC SOILS Brown to dark brown fine sandy loam or loam with weak structure; pH 6.0-7.0. A2 horizon may occur. Greyish yellow-brown to dull yellow orange bleached (dry) fine sandy loam which is massive; pH 6.5; 20 40cm depth.

Subsoil: Sharp change to yellowish brown light to medium clay; may be mottled; moderate structure; pH 6.0-6.5.

YELLOW SOLONETZIC SOILS

Topsoil:

Topsoil: Greyish yellow-brown fine sandy loam with weak structure; pH 8.5. Bleached fine sandy loam with weak structure; pH 8.0; perched watertable; to 25 cm depth. Bright yellowish brown mottled grey clay loam, to light clay with moderate subangular blocky structure; pH 9.0. Gradual change to mottled light clay with moderate structure; very hard when dry.

Additional Comments: Severe sheet erosion. Very poor drainage. Salinity evident. BROWN PODZOLIC SOILS

Subsoil:

Topsoil:

Subsoil:

Dark brown loam with weak pedality; pH 6.0; to 15 cm depth. Sharp change to dark brown massive bleached (dry) clay loam; pH 5.5; to 30 cm depth. Clear change to brownish black heavy clay with strong subangular blocky peds; pH 5.5.

RED PODZOLIC SOILS Topsoil:

Subsoil:

Dark reddish brown to brown loam with weak structure; pH 6.5- 7 .O; to 20 cm depth. Clear change to A2 horizon; dull brown in colour; clay loam; pH 7.0. Bright reddish brown to reddish brown medium to heavy clay with strong subangular blocky peds; pH 7.0.

121

Red earths Yellow earths Dominance Dominant Common Landform element Crest, upper and midslope Midslopes and footslopes Surface condition Hardsetting or loose Hardsetting Drainage Well drained Moderately well to imperfectly

drained Soil permeability Highly permeable Moderately permeable Watertable depth +150 cm +150 cm Available water-holding capacity High High Depth to bedrock +110cm +120 cm Flood hazard Nil Nil pH (topsoil) 6.0-7.0 5.0-5.5 Fertility ( chemical) Low Low Known nutrient deficiencies N, P N, P Soil salinity Low Low Erodibility (topsoil) Moderate Moderate Erodibility (subsoil) Low to high Moderate Erosion hazard Moderate Moderate Structural degradation hazard High High Land capability classification III, IV, VI lll, IV, VI uses (subsoil) ML, CL ML. CL Shrink-swell potential Low Low Mass movement hazard Nil Nil Existing land use Grazing on improved pastures - Soil Erosion None Minor to moderate gullying

Yellow soloths and solodic Red and brown podzolic soils soils

Dominance Minor Minor Landform element drainage depressions Sides lope Surface condition Hardsetting Hardsetting Drainage Imperfectly to poorly drained Imperfectly drained Soil permeability Slowly permeable Slowly permeable Watertable depth +150 cm +150 cm Available water-holding capacity High High Depth to bedrock +130 cm +110 cm Flood hazard Nil Nil pH (topsoil) 6.0-6.5 6.5 Fertility ( chemical) Low Low to moderate Known nutrient deficiencies N, P, Ca, Mo N, p Soil salinity Moderate to high Low Erodibility (topsoil) High Low Erodibility (subsoil) Moderate Low Erosion hazard Moderate Low to moderate Structural degradation hazard High High Land capability classification Ill, IV, VI III, IV uses (subsoil) CL,CH CH Shrink-swell potential Moderate High Mass movement hazard Nil Nil Existing land use Grazing on improved pastures Grazing Soil Erosion Severe gullying (>3 m) Severe sheet erosion

122

Yellow solonetzic soils Dominance Minor Landform element drainage depressions Surface condition Hardsetting Drainage Poorly drained Soil permeability Slowly permeable Watertable depth 100-200 cm Available water-holding capacity High Depth to bedrock +150 cm Flood hazard Moderate pH (topsoil) 8.5 Fertility ( chemical) Very low Known nutrient deficiencies N, P, Mo, Ca Soil salinity Moderate to high Erodibility (topsoil) High Erodibility (subsoil) High Erosion hazard High Structural degradation hazard High Land capability classification IV USCS (subsoil) CL Shrink-swell potential Moderate Mass movement hazard Nil Existing land use Grazing on native pastures Soil Erosion -

( ,ravt:llv loJm (Uc Gn2J

-, Rock outcrop Red earth

(Gn2 11 Cn2 141

lb Yellow solodic

(Dv3 42) Red earth

tCn211 Gn214J

3a

3b Yellow earth

(Cn:' 34 Cn2 21)

Yellow or brown solode (Db1 42, D82 22, Dy3 42)

l Hardsetting, fne sandy loam to loam 2 Gt·nt·rallv blt"JCht.•d, fint· ....indv loam a Yellow brown to brown medrum clav 3b Earthv reddish brown clav loam c Earthv vellow brown clav loam 3d Mottled yellowish brown hght to medium clay 4 Andestte tuff, conglomerate grevwacke, hmestone

d

Distribution diagram of the North Orange soil landscape showing the occurrence and relationship of dominant soil materials

123

Orange Local Environmental

Plan 2011

Flood Planning Map - Sheet FLD_008C

Flood Planning Land

Flood planning area

Cadastre

Cadastre 30103/2010 © Land and Property Information (LPI)

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APPENDIX B: HISTORICAL DOCUMENTS

HISTORIC AERIAL PHOTOGRAPH - 1964

id Z LAND INSIGHT II RESOURCES

MAP 1

SITE

• Newcastle • SYDNEY

• Canberra

HISTORIC AERIAL PHOTOGRAPH- 1972

d j~ LAND INSIGHT II RESOURCES

MAP 2

SITE


• Canberra

one n:01ght & :.e:oourre:, ::Jr, no.;.;• upon such intormation

r

•I • •


d f SITE

LAND INSIGHT RESOURCES


• Canberra

MAP3


d ih, LAND INSIGHT II RESOURCES

MAP 4

SITE,.


• Canberra


d h, LAND INSIGHT II RESOURCES

MAP5

SITE


• Canberra

Subject area

HISTORIC AERIAL PHOTOGRAPH- 1998 ,, l

SITE



• Canberra

MAP 6


id i~ LAND INSIGHT II RESOURCES

MAP 7

SITE


• Canberra

..Ill I


d Z, LAND INSIGHT II RESOURCES

MAP 8

SITE

• Newcastle • SYONEY

• Canberra


d f SITE



• Canberra

MAP 9


d f SITE



• Canberra

MAP 10

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