TABLE A-1 ENVIRONMENTAL AND HEALTH-BASED SOIL INVESTIGATION LEVELS (mg/kg)

Health Investigation Levels (HILs)1

A D E F

Substances

'Standard' residential with garden/

accessible soil (home-grown produce

contributing less than 10% of vegetable and

fruit intake; no poultry); includes

children’s day-care centres,

kindergartens, preschools and primary schools

Residential with minimal

opportunities for soil access: includes

dwellings with fully and permanently paved yard space such as high-rise apartments and

flats

Parks, recreational open space and playing fields:

includes secondary schools

Commercial/Industrial: includes premises such as shops and offices as well as

factories and industrial sites

Provisional Phyto-toxicity Investigation

Levels (PPILs)1

NSW EPA Guidelines

forAssessing

Service StationSites2

Back-ground Ranges1

METALS/METALLOIDSArsenic (total) 100 400 200 500 20 1-50 Barium 300 100-3000Beryllium 20 80 40 100 Cadmium 20 80 40 100 3 1 Chromium(III) 12% 48% 24% 60% 400 Chromium(VI) 100 400 200 500 1 Chromium (total) 5-1000 Cobalt 100 400 200 500 1-40 Copper 1000 4000 2000 5000 100 2-100 Lead 300 1200 600 1500 600 2-200 Manganese 1500 6000 3000 7500 500 850 Methyl mercury 10 40 20 50 Mercury (inorganic) 15 60 30 75 1 0.03 Nickel 600 2400 600 3000 60 5-500 Vanadium 50 20-500 Zinc 7000 28000 14000 35000 200 10-300 ORGANICS Aldrin + Dieldrin 10 40 20 50 Chlordane 50 200 100 250 DDT + DDD + DDE 200 800 400 1000 Heptachlor 10 40 20 50 Polycyclic aromatic hydrocarbons (PAHs)

20 80 40 100

Benzo(a)pyrene 1 4 2 5 Phenol 8500 34000 17000 42500 PCBs (total) 10 40 20 50 Petroleum Hydrocarbon Components (constituents):

>C16 - C35 Aromatics 90 360 180 450 >C16 - C35 Aliphatics 5600 22400 11200 28000 >C35 Aliphatics 56000 224000 112000 280000 C6-C9 65 C10-C40 1000 Benzene 1 Toluene 1.4 Ethyl Benzene 3.1 Total Xylenes 14 OTHERBoron 3000 12000 6000 15000 Cyanides (complexed) 500 2000 1000 2500 Cyanides (free) 250 1000 500 1250 Phosphorus 2000 Sulfur 600 Sulfate 2000

NOTE: Reference should be made to the following guidelines for further details (as referenced in the above table): 1 National Environment Protection (Assessment of Site Contamination) Measure - 1999, National Environment Protection Council. Human exposure settings based

on land use have been established for HILs and details are outlined in Taylor and Langley 1998. 2 NSW DECCW (formerly EPA) Guidelines for Assessing Service Station Sites - 1994.

TABLE A - 2

CHEMICAL CONTAMINANT CRITERIA FOR WASTE CLASSIFICATION Waste Classification Guidelines. Part 1: Classifying Waste DECC (now DECCW) NSW July 2009

GENERAL SOLID WASTE RESTRICTED SOLID WASTE HAZARDOUS WASTE

IF SCC CT1, TCLP NOT NEEDED TO CLASSIFY AS GENERAL SOLID

WASTE

IF SCC CT2, TCLP NOT NEEDED TO CLASSIFY AS RESTRICTED SOLID

WASTE

IF SCC > CT2, TCLP NOT NEEDED TO CLASSIFY AS HAZARDOUS WASTE

IF TCLP TCLP1 AND SCC SCC1

TREAT AS GENERAL SOLID WASTE

IF TCLP TCLP2 AND SCC SCC2

TREAT AS RESTRICTED SOLID WASTE

IF TCLP > TCLP2 AND/OR SCC > SCC2 TREAT AS HAZARDOUS WASTE

GENERAL SOLID WASTE RESTRICTED SOLID WASTE

CONTAMINANTCT1

(mg/kg) TCLP1 (mg/L)

SCC1(mg/kg)

CT2 (mg/kg)

TCLP2 (mg/L)

SCC2(mg/kg)

Arsenic 100 5 500 400 20 2,000

Beryllium 20 1.0 100 80 4 400

Cadmium 20 1.0 100 80 4 400

Chromium VI 100 5 1,900 400 20 7,600

Cyanide (total) 320 16 5,900 1280 64 23,600

Cyanide (Amenable) 70 3.5 300 280 14 1,200

Fluoride 3,000 150 10,000 12,000 600 40,000

Lead 100 5 1,500 400 20 6,000

Mercury 4 0.2 50 16 0.8 200

Molybdenum 100 5 1,000 400 20 4,000

Nickel 40 2 1,050 160 8 4,200

Selenium 20 1 50 80 4 200

Silver 100 5.0 180 400 20 720

Benzene 10 0.5 18 40 2 72

Toluene 288 14.4 518 1,152 57.6 2,073

Ethylbenzene 600 30 1,080 2,400 120 4,320

Total xylenes 1,000 50 1,800 4,000 200 7,200

Total petroleum hydrocarbons (C6-C9)

- - 650 - - 2,600

Total petroleum hydrocarbons (C10-C36) (C10-C14, C15-C28, C29-C36)

- - 10,000 - - 40,000

Benzo(a)pyrene 0.8 0.04 10 3.2 0.16 23

Polycyclic aromatic hydrocarbons (Total) - - 200 - - 800

Polychlorinated biphenyls - - <50 - - <50

Phenol (nonhalogenated) 288 14.4 518 1,152 57.6 2,073

Scheduled chemicals - - <50 - - <50

NOTE:

SCC – Specific Contaminant Concentration CT – Contaminant Threshold TCLP – Toxicity Characteristics Leaching Procedure

Additional Environmental Site Assessment and Remedial Action Plan35-39 Dumaresq and 32-34 McIntyre Street, Gordon

PID ASBESTOSTotal B(a)P VALUES FIBRESPAHs

1 - 0.05300 * 20 * 1 *600 ** NSL NSL100 NSL 0.81500 200 10

Location Depth in metres DESCRIPTIONBH10 0.1-0.2 Fill - silty clay NA 69.2 9.1 0.0 NABH11 0-0.1 Fill - silty clay NA 216.8 17 0.0 NABH12 0-0.2 Fill - silty sandy clay NA LPQL LPQL 0.0 NABH13 0-0.2 Fill - silty clay 180 11.6 0.8 0.0 No asbestos detectedBH14 0-0.2 Fill - silty clay 30 LPQL LPQL 0.0 No asbestos detectedBH15 0.1-0.2 Fill - silty clay 84 LPQL LPQL 0.0 No asbestos detectedBH16 0-0.2 Fill - silty sandy clay 120 NA NA 0.0 NABH17 0-0.1 Fill - silty clay 160 0.7 0.1 0.0 No asbestos detectedBH18 0-0.1 Fill - silty clay NA NA NA 0.0 No asbestos detectedBH19 0.1-0.2 Fill - silty clay 300 NA NA 0.0 NABH20 0.2-0.3 Fill - silty clay 330 NA NA 0.0 NABH21 0.1-0.2 Fill - silty clay 280 1.9 0.2 0.0 No asbestos detectedBH22 0.2-0.3 Fill - silty clay 55 NA NA 0.0 NABH23 0.1-0.2 Fill - silty clay 37 NA NA 0.0 NABH24 0-0.1 Fill - silty clay 320 NA NA 0.0 NABH25 0.1-0.2 Fill - silty clay 160 NA NA 0.0 NABH26 0-0.1 Fill - silty clay 340 NA NA 0.0 NA

13 8 8 16 6340 216.8 17 0 NC184 33.7 2.63 0 NC

116.9 80.8 6.34 0 NC0.6 2.4 2.41 NC NC

Gamma Gamma Unknown NC NC

NC NC

EXPLANATION:^ Site Assessment Criteria: Guideline concentrations adopted for the investigation as outlined below:

* National Environment Protection (Assessment of Site Contamination) Measure 1999 (NEPC Guidelines)Health Investigation Levels (HIL) - Column A, Residential with accessible soils

** Provisional Phyto-toxicity Investigation Levels (PPILs)# NSW DECC (EPA) Guidelines for Assessing Service Station Sites - 1994^^ In the absence of Australian guidelines, the laboratory PQL has been adopted as the site assessment criteria

+ Waste Classification Guidelines – Part 1: Classifying Waste (2009)

Concentration above the Site Assessment Criteria

ABBREVIATIONS:PAHs: Polycyclic Aromatic HydrocarbonsB(a)P: Benzo(a)PyrenePQL: Practical Quantitation LimitLPQL: Less than PQLNA: Not AnalysedNC: Not CalculatedPID: Photoionisation DetectorNSL: No Set Limit

E24170KMarch 2011

NOTE: + Statistical analysis has been calculate using ProUCL version 4.1 (USEPA). Statistical analyses has only been undertakenfor those contaminants that exceeded the health based site assessment criteria

Lead

PAHs

TABLE BSUMMARY OF LABORATORY TEST DATASOIL CHARACTERISATION ASSESSMENT

All data in mg/kg unless stated otherwise

ANALYTE

General Solid Waste CT1+

General Solid Waste SCC1+

93.45 16.23Upper Level 95% or 99% Confidence

230.3

Standard DeviationCoefficient of Variation

Maximum Value

Limit on Mean Value (95% or 99% UCL) +

Mean Value

PQL - Envirolab ServicesSite Assessment Criteria ^

Distribution +

Total no. of samples analysed

Provisional Phyto-toxicity Investigation Levels

Additional Environmental Site Assessment and Remedial Action Plan35-39 Dumaresq and 32-34 McIntyre Street, Gordon

Lead B(a)PPQL - Envirolab 0.03 0.001

5 0.0420 0.16>20 >0.16

SAMPLE Depth in metres

BH10 0.1-0.2 NA LPQLBH11 0.0-0.1 NA LPQLBH16 0.0-0.2 LPQL NABH17 0.0-0.1 0.03 NABH19 0.1-0.2 0.2 NABH20 0.2-0.3 0.09 NABH21 0.1-0.2 0.1 NABH24 0.0-0.1 0.1 NABH25 0.1-0.2 0.04 NABH26 0.0-0.1 0.3 NA

8 20.3 LPQL

EXPLANATION:* NSW DECC (EPA) Waste Classification Guidelines - Part 1: Classifying Waste - April 2009

Concentration above the General Solid Waste guideline level VALUEConcentration above the Restricted Solid Waste guideline level VALUE

ABBREVIATIONS:PQL: Practical Quantitation LimitLPQL: Less than PQLB(a)P: Benzo(a)Pyrene

E24170KMarch 2011

Maximum Value

ANALYTE

TABLE CSUMMARY OF LABORATORY TEST DATA

TOXICITY CHARACTERISTICS LEACHING PROCEDURE (TCLP)All data in mg/L unless stated otherwise

TCLP1 - General Solid Waste *TCLP2 - Restricted Solid Waste *TCLP3 - Hazardous Waste *

Total no. of samples

AdditionalEnvironmentalSiteAssessmentandRemedialActionPlan

35-39Dumaresqand32-34McIntyreStreet,Gordon

SA

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kg)

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180

240

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lene

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NC

NC

LPQ

LLP

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NC

Sam

ple

IDs:

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LPQ

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hene

LPQ

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NC

NC

LPQ

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800.

20.

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o(b)

&(k)

fluor

ant

1.2

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0.8

100

0.3

0.2

0.25

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nzo(

a)py

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0.8

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20.

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no(1

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rene

0.6

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0.35

143

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LN

CN

CD

iben

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thra

cene

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LPQ

LN

CN

CBe

nzo(

ghi)p

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0.1

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143

0.1

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CN

C

ABBREVIATIONS:

PQL:

Prac

tical

Qua

ntita

tion

Lim

itLP

QL:

Less

than

PQL

NC

:Not

Cal

cula

ted

E24170K

March2011

BH21

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contaminantsabovetheresidentialwithaccessiblesoils(including

primaryschools)(ColumnA)HealthInvestigationLevels(HILs)

presentedinNEPM(1999).

App

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cale

(m)

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360

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320

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H24

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13(0

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14(0

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Note:Referenceshouldbemadetothetextforafullunderstanding

ofthisplan.Contaminationdatashownonthisplanareonlythose

contaminantsabovetheresidentialwithaccessiblesoils(including

primaryschools)(ColumnA)HealthInvestigationLevels(HILs)

presentedinNEPM(1999).

App

roxi

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cale

(m)

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BH

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BH

16

BH

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H21

BH

24(0

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BH

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H19

(0.4

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H20

(0.4

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BH

25

BH

23 BH

26

BH

3(0

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BH

2(0

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BH

4(0

.1)

BH

5(0

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BH

10 BH

11(0

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BH

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END

:

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1(0

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