Re: Stage 1 Environmental Assessment · 1. Introduction and Objective . Senversa Pty Ltd (Senversa) was engaged by the Environmental Protection Authority (EPA) to undertake the Stage

Senversa Pty Ltd 125 Sturt Street, Adelaide, SA 5000

ABN 89 132 231 380 www.senversa.com.au

1 May 2017

Site Contamination Officer SA EPA GPO Box 2607 Adelaide, SA, 5001

Dear

Re: Stage 1 Environmental AssessmentKeswick EPA Assessment Area

1. Introduction and Objective

Senversa Pty Ltd (Senversa) was engaged by the Environmental Protection Authority (EPA) to undertake the Stage 1 environmental assessment works (comprising a soil vapour investigation) at the Keswick EPA Assessment Area (Assessment Area). The Assessment Area is shown on Figure 1.

Previous investigations undertaken within the Assessment Area have primarily focussed on former manufacturing facilities located along Everard Avenue in the south-eastern corner of the Assessment Area, and comprised of a site history review, soil, groundwater, soil vapour, and indoor air assessments. These investigations identified the presence of volatile chlorinated hydrocarbons in soil, groundwater and/ or soil vapour beneath and in close proximity to the former manufacturing facilities. It was inferred that impacts to groundwater are likely to have migrated in north north-westerly direction.

The objective of the Stage 1 environmental assessment works was to assess the nature and extent of site contamination on or below the surface of land at the former manufacturing facilities and any site contamination emanating from these.

2. Scope of Work

To achieve the objective of the assessment the following scope of works was completed by Senversa:

• Install 34 low uptake Waterloo Membrane Samplers (WMS) (SV01 to SV25, SV27 to SV35) and two field duplicate WMSs (QC01 and QC02) for quality control purposes. Due to the presence of high and low voltage subsurface powerlines in the vicinity of the substation located at Croydon Road, the installation of a WMS in this area was not possible. The location was moved to the south-eastern corner of the Assessment Area following direction by EPA; however, due to hand auger refusal following three attempts, Senversa was ultimately not able to install the WMS.

• Retrieve installed WMS. Local council maintenance works along the footpath of Ashford Road destroyed the WMS at sampling location SV19, and accordingly sample data is not available for this location.

A12819_002_LTR_Rev1 1 May 2017 Page 1 of 6 Commercial in Confidence

www.senversa.com.au

Stage 1 Environmental Assessment Keswick EPA Assessment Area

• Analyse 33 WMS and two quality control samples for the chemicals on interests (COIs) listed in Section 3.

• Prepare this factual letter report.

The WMS sampling locations are presented on Figure 2.

3. Methodology

The methodology adopted for the assessment is summarised in the table below.

Task Adopted Methodology

Preliminaries Date completed: 20 March 2017 Pre-Drilling

Prior to the commencement of site assessment works, Senversa undertook the following: • Obtained approval from City of West Torrens to install non-permanent soil vapour sampling bores. • Clearance of underground utilities: All investigation locations were cleared for underground services in

accordance with Senversa Borehole/Excavation Underground and Overhead Clearance Protocol by undertaking the following: Review available service plans from Dial Before You Dig (DBYD). Available plans were

obtained from relevant sources and provided to the service locator for review prior to mobilisation to site.

Inspection of the site and immediate off-site areas for surface evidence or signage indicating underground utility locations.

Tracing known and redundant (where possible) underground utilities using radio detection equipment by a licensed service locator. Senversa observed and discussed the findings of this activity with the service locator personnel prior to commencing any intrusive investigations.

An area of approximately 5 metres (m) around each location was cleared in case the preferred location needed to be relocated for utilities not identified through review of the plans and the service location contractor.

Installation and Retrieval of WMS Date installation completed: 22 March to 23 March 2017

Date retrieval completed: 7 April 2017

A suitably qualified and experienced field manager oversaw, documented and installed 34 WMSs (SV01 to SV25, SV27 to SV35) and two WMSs for quality control purposes (QC01 and QC02). Sampling locations are presented on Figure 2. • A hand auger was used to advance soil bores to the target depth of 1 m below ground level (bgl). • Soil cuttings were logged using a modified method based on the Unified Soil Classification System

(USCS), in accordance with Australian Standard AS1726-1993 and the ASC NEPM (as amended, May 2013). Visual and olfactory observations (e.g. clay content, inclusions, moisture, odours, staining) were also recorded. Soil bore logs are provided in Attachment A. Photographs of soil profile in each location are appended in Attachment B.

• Volatile organic compound (VOC) headspace field measurements of soil were taken using a photoionisation detector (PID) fitted with a 11.7 eV lamp (considered suitable for the detection of CHC) at regular intervals (at least every 0.5 m, at changes in lithology, or where indicators of potential contamination were observed). Soil samples were collected and the soil was placed in zip lock bags. PID readings were taken for each sample and are provided in the soil bore logs in Attachment A.

• All WMSs were installed at a depth of 0.9 m bgl to ensure adequate clearance from the soil - by using a wire basket provided by the manufacturer at the bottom of the WMS. An expandable foam bung inside a plastic sleeve was used to seal the bore at a depth of 0.5 m bgl. The bores were covered with a thin cardboard sheet and drill cuttings. A schematic is provided below. The soil bores were restored flush to the ground surface to avoid slips, trips or falls by the general public. In areas where bitumen required cutting the core was used to cover the sampling locations (SV30, SV31).



Task Adopted Methodology

• Two locations (SV24, SV31) in the vicinity of the potential contamination source were selected for the installation of the two field duplicate WMS (QC01 and QC02).These additional samplers were analysed and assessed as intra-laboratory quality control samples.

• The WMSs were removed after a minimum of the 10 days to ensure required limits of reporting (LOR) were able to be achieved. The soil bores were reinstated with the soil cuttings from each soil bore and supplemented with uncontaminated washed sand where required. As described in Section 2, Senversa was not able to retrieve the WMS in sampling location SV19.

Laboratory All samples (33 primary and two intra-laboratory field duplicate samples) were submitted under strict chain of Analyses custody (COC) procedures to a NATA accredited laboratory – SGS Australia - for the analyses of the relevant

COIs summarised below:

• VOCs including tetrachloroethene (PCE), trichloroethene (TCE), cis-1,2-dichloroethene (DCE), vinyl chloride (VC), chloroform, carbon tetrachloride.

• Benzene, toluene, ethylbenzene, xylene and naphthalene (BTEXN).

• Total recoverable hydrocarbons (TRH) fractions C6-C10 minus BTEX (F1) and >C10-C16 minus naphthalene (F2).

The analytical results were used for the calculation of monitoring time-weighted average concentrations, by dividing the mass sorbed to the medium by the sampling time and known analyte-specific uptake rates. The COC and sample receipt advice are provided in Attachment C.

Survey All investigation locations were be surveyed using a hand held GPS. Survey results are provided in Attachment D.

Waste Soil cuttings from each soil bore were used to cover the sampling locations and to restore/ backfill relevant soil Management bores. Accordingly, soil was not required to be disposed of off-site.

4. Screening Criteria

Soil vapour analytical results were screened against the following criteria provided in National Environment Protection (Assessment of Site Contamination) Measure (NEPM ASC) 1999, as amended May 2013:

• Interim soil vapour health investigation levels (HILs) for volatile organic chlorinated compounds including PCE, TCE, 1,1,1-trichloroethane, cis-1,2-DCE and VC.

• Soil vapour health screening levels (HSLs) for vapour intrusion in sandy soils present at a depth between 0 to 1 m bgl for BTEXN, TRH F1 and TRH F2. The HSLs for TRH F1 and TRH F2 are relevant for impacts associated with petroleum source. The source of TRH impacts in the Assessment Area is currently unknown, and accordingly, the HSLs have been applied for screening purposes only.



Given the mixed residential and commercial use within the Assessment Area, screening criteria for residential (HIL/HSL A) and commercial /industrial land (HIL/HSL D) land use were adopted.

Adopted screening criteria are summarised in Table 1.

5. Quality Assurance/ Quality Control

Senversa data quality assurance / quality control (QA/QC) procedures was adopted and samples collected to support the collection and provision of reliable data upon which decisions can be made. The adopted approach is based on guidance provided from the following sources:

• Australian Standard (AS) 4482.1-2005 Guide to the investigation and sampling of sites with potentially contaminated soil, Part 1: Non-volatile and semi-volatile compounds.

• National Environment Protection Council (NEPC) – National Environment Protection (Assessment of Site Contamination) Measure 1999, Schedule B (3) Guideline on Laboratory Analysis of Potentially Contaminated Soils.

• United States Environmental Protection Agency – Guidance on Systematic Planning Using the Data Quality Objectives Process EPA QA/G-4.

• United States Environmental Protection Agency – Guidance on Environmental Data Verification and Data Validation EPA QA/G-8.

The data validation review is provided within Attachment E, which indicates that the data are considered suitable for use in forming conclusions relating to the contamination status of soil vapour beneath the Assessment Area.

6. Investigation Results

Field Observations

Field observations made during the site assessment works are presented in the soil bore logs provided in Attachment A and are summarised as follows:

• The area was generally underlain by sandy/ gravelly fill material to a maximum of depth of 0.8 m bgl overlaying a natural clayey sand/sandy clay.

• PID readings for all samples were 0 parts per million (ppm).

• Fill material encountered in sampling location SV14 contained a trace of construction debris and clinker.

• No other indicators of contamination (e.g. odours, staining, anthropogenic inclusions) were observed in any of the soil bores.

Analytical Results

The laboratory certificate of analysis is provided in Attachment C; comparison of the results against the adopted screening criteria is presented in Table 1. Concentrations of COIs reported greater than the laboratory LOR are also presented in Figure 3. The analytical results from the assessment are summarised as follows:

• TCE concentrations exceeding the adopted screening criteria for residential and commercial/ industrial land use of 20 µg/m3 and 80 µg/m3, respectively, were detected in sampling locations SV22 (93 µg/m3), SV24 (140 µg/m3) and SV31 (93 µg/m3). A TCE concentration of 35 µg/m3 was detected in SV30, which exceeded the residential criteria but was below the adopted screening criteria for commercial/ industrial land use. These soil vapour sampling bores are all located in the south-eastern portion of the Assessment Area near the former manufacturing facilities along Day Avenue and the southern portion of Ashford Road. TCE concentrations in the remaining soil



vapour sampling locations were below the laboratory LOR. The inferred TCE contours are shown on Figure 4.

• Concentrations of remaining COIs were less than the adopted screening criteria with the following COIs detected above the laboratory LOR (refer to Table 1 and Figure 3 for sampling locations).

COIs LOR Range Adopted Adopted Concentration No. of (µg/m3) HIL/HSL A HIL/HSL D Range (µg/m3) Samples

above LOR

TRH F2 410 - 460 130,000 500,000 170 - 1,700 15

Ethylbenzene 1.6 – 1.9 330,000 1,300,000 2.3 - 120 14

Toluene 2 – 2.4 1,300,000 4,800,000 2.3 - 370 9

1.7 – 1.9 220,000 840,000 1.8 – 1,300 19Xylene (m&p)

Xylene (o) 1.7 – 1.9 220,000 840,000 2.6 - 650 18

1,2,4 1.1 - 1.3 - - 1.6 – 2.6 2 Trimethylbenzene

Chloroform 3.8 – 4.3 - - 4 – 5.9 5

Hexane 4.0 – 4.6 - - 4.7 – 5.6 2

PCE 1.8 – 2.1 2,000 8,000 2.4 – 6.9 7

7. Conclusions

Based on the results of the assessment, Senversa concludes that TCE concentrations exceeding the adopted screening criteria for residential and commercial/ industrial land uses were encountered in the vicinity of the former manufacturing facilities in the south-eastern portion of the Assessment Area. The extent of above - criteria concentrations of TCE appears to be delineated to the commercial areas in the south-eastern portion of the Assessment Area, and does not appear to extend into the residential areas to the north - northwest or the commercial area along Croydon Road to the north (with TCE concentrations below the adopted screening criteria). The extent of the TCE impact has not been delineated in southerly direction - to the south of Day Avenue.

Concentrations of other COIs were below the adopted screening criteria across the Assessment Area.

COIs identified in soil vapour during the assessment include TRH F1, TRH F2, BTEXN, PCE, TCE, 1,1,1- trichloroethane, cis-1,2-DCE, VC, 1,2,4-trimethylbenzene, chloroform and hexane. However, only TCE was reported at concentrations greater than the adopted screening criteria.

8. Principles and Limitations of Assessments

Principles and limitations of the assessment are provided in Attachment F.



Yours sincerely,

Associate Environmental Engineer Principal Environmental Scientist

DW/GM

Enclosures: Table 1: Soil Vapour Analytical Results Figure 1: Site Location Plan Figure 2: Waterloo Membrane Samplers Location Plan Figure 3: Soil Vapour Analytical Results Figure 4: Inferred TCE Contours Attachment A: Lithology Logs Attachment B: Site Photographs Attachment C: Laboratory Documentation Attachment D: Survey Results Attachment E: Data Validation Attachment F: Limitations of the Assessment



Table 1: Soil Vapour Analytical Results

A12819_002_LTR_Rev1 1 May 2017 Commercial in Confidence

Table 1: Soil Vapour Analytical Results Keswick Stage 1 Environmental Assessment SA EPA A12819

Location SV01 SV02 SV03 SV04 SV05 SV06 SV07 Sample ID SV01 1623-AN-LU-040 SV02 1623-AN-LU-033 SV03 1623-AN-LU-032 SV04 1623-AN-LU-031 SV05 1623-AN-LU-037 SV06 1623-AN-LU-034 SV07 1623-AN-LU-036

Sampled Date 6/04/2017 6/04/2017 6/04/2017 6/04/2017 6/04/2017 7/04/2017 7/04/2017 Sample Type Normal Normal Normal Normal Normal Normal Normal

Group Chemical Units >C10-C16 minus naphthalene (F2) µg/m3 130000 500000


Location Sample ID

Sampled Date Sample Type

Group Chemical Units >C10-C16 minus naphthalene (F2) µg/m3 130000 500000 C6-C10 minus BTEX (F1) µg/m3 180000 680000 Benzene µg/m3 1000 4000 Ethylbenzene µg/m3 330000 1300000 Toluene µg/m3 1300000 4800000 Xylene (m & p) µg/m3 220,000 840,000 Xylene (o) µg/m3 220,000 840,000

PAHs Naphthalene µg/m3 800 3000 1,1,1-Trichloroethane µg/m3 60000#1 230000#2 1,1,2-Trichloroethane µg/m3 1,1-Dichloroethane (DCE) µg/m3 cis-1,2-dichloroethene (cis-DCE) µg/m3 80#1 300#2 trans-1,2-Dichloroethene (trans-DCE) µg/m3 1,2,3-Trichlorobenzene µg/m3 1,2,4-Trichlorobenzene µg/m3 1,2,4-Trimethylbenzene µg/m3 1,1-Dichloroethene µg/m3 1,2-Dichlorobenzene µg/m3 1,3-Dichlorobenzene µg/m3 1,4-Dichlorobenzene µg/m3 1,2-Dichloroethane µg/m3 Carbon tetrachloride µg/m3 Chlorobenzene µg/m3 Chloroform µg/m3 Dichlorodifluoromethane µg/m3 Halothane µg/m3 Hexane µg/m3 Isopropylbenzene µg/m3 Methyl Ethyl Ketone µg/m3 Trichlorofluoromethane µg/m3 Trichloroethene (TCE) µg/m3 20#1 80#2 Tetrachloroethene (PCE) µg/m3 2000#1 8000#2 Vinyl chloride (VC) µg/m3 30#1 100#2

NEPC 2013 Soil Vapour HSLs for vapour intrusion Residential (HSL A & B)#1

NEPC 2013 Soil Vapour HSLs for vapour intrusion

Commcercial/Industrial (HSL D) #1

VOCs

NEPC 2013 Interim HILs for VOCCs Residential (HIL A)

NEPC 2013 Interim HILs for VOCCs Commercial/Industrial (HIL D)

TRH - HSL Fractions

BTEX

SV08 SV09 SV10 SV11 SV12 SV13 SV14 SV08 1623-AN-LU-038 SV09 1623-AN-LU-030 SV10 1623-AN-LU-039 SV11 1623-AN-LU-035 SV12 1623-AN-LU-048 SV13 1623-AN-LU-049 SV14 1623-AN-LU-047 7/04/2017 7/04/2017 7/04/2017 7/04/2017 7/04/2017 7/04/2017 7/04/2017 Normal Normal Normal Normal Normal Normal Normal

210 180


Location Sample ID







VOCs



TRH - HSL Fractions

BTEX

SV15 SV16 SV17 SV18 SV20 SV21 SV22 SV15 1623-AN-LU-042 SV16 1623-AN-LU-043 SV17 1623-AN-LU-041 SV18 1623-AN-LU-045 SV20 1623-AN-LU-050 SV21 1623-AN-LU-046 SV22 1623-AN-LU-061 7/04/2017 7/04/2017 7/04/2017 7/04/2017 7/04/2017 7/04/2017 7/04/2017 Normal Normal Normal Normal Normal Normal Normal


Location Sample ID







VOCs



TRH - HSL Fractions

BTEX

SV23 SV25 SV27 SV28 SV29 SV23 1623-AN-LU-054 SV24 1623-AN-LU-052 QC01 1623-AN-LU-065 SV25 1623-AN-LU-064 SV27 1623-AN-LU-062 SV28 1623-AN-LU-051 SV29 1623-AN-LU-063 7/04/2017 7/04/2017 7/04/2017 7/04/2017 7/04/2017 7/04/2017 7/04/2017 Normal Normal Field Duplicate Normal Normal Normal Normal

550


Location Sample ID







VOCs



TRH - HSL Fractions

BTEX

SV30 SV32 SV33 SV34 SV35 SV30 1623-AN-LU-055 SV31 1623-AN-LU-057 QC02 1623-AN-LU-060 SV32 1623-AN-LU-056 SV33 1623-AN-LU-053 SV34 1623-AN-LU-059 SV35 1623-AN-LU-066 7/04/2017 7/04/2017 7/04/2017 7/04/2017 7/04/2017 7/04/2017 7/04/2017 Normal Normal Field Duplicate Normal Normal Normal Normal

1700 730 990


FiguresFigure 1: Site Location Plan Figure 2: Waterloo Membrane Samplers Location Plan Figure 3: Soil Vapour Analytical Results Figure 4: Inferred TCE Contours


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Soil Vapour Analytical Results

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ut th

e p

rio

r w

ritte

n p

erm

issio

n o

f S

envers

a.


Xylene (m & p) 1.9

Tetrachloroethene (PCE) 3

SV35


SV16


SV21


Xylene (o) 2.6

SV23

>C10-C16 minus naphthalene (F2) 990*

Toluene 350*

Ethylbenzene 2.5*

Xylene (m & p) 8.2*

Xylene (o) 2.8*


Tetrachloroethene (PCE) 6.8*

SV24


Toluene 3.2

Ethylbenzene 220

Xylene (m & p) 1300

Xylene (o) 650

1,2,4-Trimethylbenzene 1.6

SV27


SV28


Toluene 4.9

Ethylbenzene 3.9

Xylene (m & p) 9.1

Xylene (o) 3.5



SV30

Xylene (m & p) 38

Xylene (o) 22

SV33

Chemical Result (µg/m3)

Soil Vapour Sample Location

NEPC 2013 Interim soil vapour HILs for VOCCs - Residential (HIL A)

NEPC 2013 Interim soil vapour HILs for VOCCs - Commercial/Industrial (HIL D)

NEPC 2013 Soil Vapour HSLs for vapour intrusion - Residential (HSL A & B)

NEPC 2013 Soil Vapour HSLs for vapour intrusion - Commcercial/Industrial (HSL D)

*QC Result Adopted

EVERARD AVENUE

!r§ !r§

!r§

!r§ !r§

!r§

!r§ !r§

!r§

!r§ !r§

!r§ !A

!r§

!r§ !r§

!r§ !r§

!r§

!A

SV19

SV02


Attachment A: Lithology Logs


BOREHOLE NUMBER SV01PAGE 1 OF 1

CLIENT EPA SA PROJECT NAME Stage 1 Environmental Assessment

PROJECT NUMBER A1281902 PROJECT LOCATION Keswick Assessment Area

DATE STARTED 21/3/17 COMPLETED 21/3/17 R.L. SURFACE DATUM

DRILLING CONTRACTOR Aussie Probe RL Casing

EQUIPMENT Hand Auger HOLE LOCATION (Easting, Northing) Farnham Road

HOLE SIZE 65.0 mm diameter LOGGED BY SG CHECKED BY DW

NOTES

DRILLING FIELD MATERIAL DESCRIPTION SAMPLING

SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l

Material Description

Moi

stur

e

PID

(pp

m)

Sample ID

& Interval (QA/QC)

Additional Observations

FILL FILL: Yellow-grey, fine grained silty sand with minor medium to coarse gravel. Uniformly graded, rounded sand. Road base.

0.0 SV01_0.0

Trace clay, no gravels.

0.5

CLS Sandy CLAY: Medium plasticity. Red-brown, firm, sandy clay with minor calcrete gravel.

D 0.0 SV01_0.5

1.0 SV01 terminated at 1.00 m bgl Target depth reached

0.0 SV01_0.9

These logs have been prepared for environmental purposes and should not be used for geotechnical design and interpretive purposes








NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

FILL FILL: Grey, fine grained silty sand with minor medium to coarse gravel. Uniformly graded, rounded sand. Road base.

0.0 SV02_0.0

D

Brown, trace clay, no gravels.

0.5 CLS Sandy CLAY: Medium plasticity. Red-brown, firm, sandy clay with

minor calcrete gravels. Uniformly graded, fine grained, rounded sand.

0.0 SV02_0.5

D-M


0.0 SV02_0.9









NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

FILL FILL: Light brown, fine grained silty sand with minor medium to coarse 0.0 SV03_0.0 gravel. Uniformly graded, rounded sand. Road base.

D

CLS Sandy CLAY: Medium plasticity. Red-brown, soft to firm, sandy clay with minor calcareous gravel. Uniformly graded, fine grained, rounded sand.

0.5 0.0 SV03_0.5

D-M

0.0 SV03_0.9



0.0

0.0

0.0

HA

SV04_0.0

SV04_0.5

SV04_0.9

D

D-M

FILL

FILL

CLS

FILL: Grey, fine grained silty sand with minor medium to coarse gravel. Uniformly graded, rounded sand. Road base.

FILL: Brown, soft to firm, sandy clay.

Sandy CLAY: Medium plasticity. Light orange-brown, firm, sandy clay with minor calcareous gravel.

SV04 terminated at 1.00 m bgl Target depth reached

PID

(pp

m)

Wat

er

Cor

eR

ecov

ery

(%)


Met

hod Sample

ID & Interval (QA/QC)


Wel

lD

etai

ls

Moi

stur

e

PAGE 1 OF 1

BOREHOLE NUMBER SV04

COMPLETED 21/3/17DATE STARTED 21/3/17

DRILLING CONTRACTOR Aussie Probe

LOGGED BY SG CHECKED BY DW

NOTES

EQUIPMENT Hand Auger

HOLE SIZE 65.0 mm diameter

R.L. SURFACE DATUM

RL Casing

HOLE LOCATION (Easting, Northing) Farnham Road

CLIENT EPA SA

PROJECT NUMBER A1281902

PROJECT NAME Stage 1 Environmental Assessment

PROJECT LOCATION Keswick Assessment Area

1. S

EN

VE

RS

A S

TA

ND

AR

D

A12

8190

2_K

ES

WIC

KS

VIN

ST

ALL

.GP

J S

EN

VE

RS

A_G

INT

.GD

T

28/4

/17

Gra

phic

Log

Cla

ssifi

catio

nS

ymbo

l

Depth (m)

0.5

1.0










NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

FILL FILL: Grey, fine grained silty sand with minor medium to coarse gravel. 0.0 SV05_0.0 Uniformly graded, rounded sand. Road base.

D

CLS Sandy CLAY: Medium plasticity. Brown, soft to firm, sandy clay.

0.5 0.0 SV05_0.5

Light orange-brown, firm, sandy clay with minor calcareous gravel.

D-M

0.0 SV05_0.9








EQUIPMENT Hand Auger HOLE LOCATION (Easting, Northing) Chatham Road


NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e

PID

(pp

m)

Sample ID

& Interval (QA/QC)


FILL FILL: Brown-grey, fine grained silty sand with minor medium to coarse gravel. Uniformly graded, rounded sand. Road base.

0.0 SV06_0.0

CLS Sandy CLAY: Medium plasticity. Brown, soft to firm, sandy clay.

D

0.5 0.0 SV06_0.5

D-M

1.0

Orange-brown, firm.


0.0 SV06_0.9









NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e

PID

(pp

m)

Sample ID

& Interval (QA/QC)


FILL FILL: Brown, fine grained silty sand with minor roots. Uniformly graded, rounded sand.

0.0 SV07_0.0

SC Clayey SAND: Dark red-brown, fine grained clayey sand with trace roots. Uniformly graded, rounded sand.

D

0.5 Light orange-brown, firm. 0.0

SV07_0.5

D-M


0.0 SV07_0.9









NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e

PID

(pp

m)

Sample ID

& Interval (QA/QC)


FILL FILL: Grey-brown, fine grained silty sand with minor roots. Uniformly graded, rounded sand.

0.0 SV08_0.0

CLS Sandy CLAY: Medium plasticity. Dark red-brown, firm, sandy clay with trace roots.

D

0.5 0.0 SV08_0.5

Dark brown, firm.

D-M


0.0 SV08_0.9









NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e

PID

(pp

m)

Sample ID

& Interval (QA/QC)


FILL FILL: Grey-brown, fine grained silty sand with minor fine to coarse gravel. Uniformly graded, rounded sand. Road base.

0.0 SV09_0.0

D

CLS Sandy CLAY: Medium plasticity. Grey-brown, firm, sandy clay.

0.5 0.0 SV09_0.5

Dark brown, firm, with minor calcareous gravel.

D-M


0.0 SV09_0.9









NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)


0.0 SV10_0.0

D

SC Clayey SAND: Dark brown, fine grained clayey sand. Uniformly graded, rounded sand.

0.5 CLS Sandy CLAY: Medium plasticity. Dark brown, firm, fine grained sandy

clay. Uniformly graded, rounded sand.

0.0 SV10_0.5

D-M


0.0 SV10_0.9


0.0

0.0

0.0

HA

SV11_0.0

SV11_0.5

SV11_0.9

D

D-M

FILL

CLS

CL

FILL: Brown, fine grained silty sand with trace fine to medium grained calcareous gravel. Uniformly graded, rounded sand and gap graded, subangular gravel.

Sandy CLAY: Medium plasticity. Dark red-brown, firm, sandy clay with trace roots.

CLAY: Dark brown, clay with minor calcrete gravel.


PID

(pp

m)

Wat

er

Cor

eR

ecov

ery

(%)


Met

hod Sample



Wel

lD

etai

ls

Moi

stur

e

PAGE 1 OF 1





NOTES



R.L. SURFACE DATUM

RL Casing

HOLE LOCATION (Easting, Northing) Everard Avenue

CLIENT EPA SA




1. S

EN

VE

RS

A S

TA

ND

AR

D

A12

8190

2_K

ES

WIC

KS

VIN

ST

ALL

.GP

J S

EN

VE

RS

A_G

INT

.GD

T

28/4

/17

Gra

phic

Log

Cla

ssifi

catio

nS

ymbo

l

Depth (m)

0.5

1.0








EQUIPMENT Hand Auger HOLE LOCATION (Easting, Northing) Everard Avenue


NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

FILL

SC

0.5

CLS

1.0

0.0 SV12_0.0 Uniformly graded, rounded sand. Road base. FILL: Brown, fine grained silty sand with minor fine to coarse gravel.

Clayey SAND: Dark brown, fine grained clayey sand with trace roots. Uniformly graded, rounded sand.

D-M SV12_0.5 0.0

Sandy CLAY: Medium plasticity. Dark brown, firm, sandy clay.

SV12_0.9 0.0



0.0

0.0

0.0

HA

SV13_0.0

SV13_0.5

SV13_0.9

M

D-M

FILL

CLS

FILL: Brown, fine grained silty sand with minor fine to coarse gravel. Uniformly graded, rounded sand.

Grey. No gravel. Similar properties to service sands or backfill sands.

Sandy CLAY: Medium plasticity. Dark brown, firm, fine grained sandy clay. Uniformly graded, rounded sand.


PID

(pp

m)

Wat

er

Cor

eR

ecov

ery

(%)


Met

hod Sample



Wel

lD

etai

ls

Moi

stur

e

PAGE 1 OF 1





NOTES



R.L. SURFACE DATUM

RL Casing

HOLE LOCATION (Easting, Northing) Kent Road

CLIENT EPA SA




1. S

EN

VE

RS

A S

TA

ND

AR

D

A12

8190

2_K

ES

WIC

KS

VIN

ST

ALL

.GP

J S

EN

VE

RS

A_G

INT

.GD

T

28/4

/17

Gra

phic

Log

Cla

ssifi

catio

nS

ymbo

l

Depth (m)

0.5

1.0








EQUIPMENT Hand Auger HOLE LOCATION (Easting, Northing) Kent Road


NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e

PID

(pp

m)

Sample ID

& Interval (QA/QC)


FILL FILL: Brown, fine grained silty sand with minor roots with trace fine gravel. Uniformly graded, rounded sand.

0.0 SV14_0.0


D

0.5

Light orange-white, firm, with minor calcareous silt.

0.0 SV14_0.5

D-M


0.0 SV14_0.9









NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

FILL FILL: Brown, fine grained silty sand with minor roots with trace fine gravel. Uniformly graded, rounded sand.

0.0 SV15_0.0

CLS Sandy CLAY: Medium plasticity. Dark red-brown, firm, fine grained sandy clay with trace roots. Uniformly graded, rounded sand.

D

0.5

Light orange-white, firm, with minor calcareous cemented silt conglomerates.

0.0 SV15_0.5

D-M

0.0 SV15_0.9










NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

0.0 SV16_0.0 Uniformly graded, rounded sand.

FILL FILL: Brown, fine grained silty sand with trace fine to medium gravel.

M

Sandy CLAY: Medium plasticity. Dark red-brown, firm, sandy clay withtrace roots. Uniformly graded, fine grained, rounded sand.

0.5 SV16_0.5 0.0 CLAY: Yellow-brown, clay with minor calcareous inclusions.

D-M

SV16_0.9 0.0










NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

FILL FILL: Brown, fine grained silty sand with minor fine to coarse gravel with trace roots. Uniformly graded, rounded sand.

0.0 SV17_0.0

SC Clayey SAND: Dark brown, fine grained clayey sand with trace roots. Uniformly graded, rounded sand.

0.5 D 0.0 SV17_0.5


1.0

Light orange-white, firm, with minor calcareous silt inclusions.


0.0 SV17_0.9







EQUIPMENT Hand Auger HOLE LOCATION (Easting, Northing) Ashford Road


NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

FILL

SC

FILL: White-grey, fine grained silty sand with minor fine to coarse gravel with trace roots. Uniformly graded, rounded sand. Road base.

Clayey SAND: Dark red-brown, fine grained clayey sand with trace roots. Uniformly graded, rounded sand.

0.0 SV18_0.0

0.5 CLS Sandy CLAY: Light orange-white, firm, sandy clay with minor

calcareous silt inclusions. Uniformly graded, fine grained, rounded sand.

D 0.0 SV18_0.5


0.0 SV18_0.9









NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

FILL

CLS

FILL: White-grey, fine grained silty sand with minor fine to coarse gravel with trace roots. Uniformly graded, rounded sand. Road base.

Sandy CLAY: Medium plasticity. Dark brown, firm, fine grained sandy clay with minor roots. Uniformly graded, rounded sand.

0.0 SV19_0.0

M

0.5 0.0 SV19_0.5

SC Clayey SAND: Dark red-brown, fine grained clayey sand with trace roots. Uniformly graded, rounded sand.

D

0.0 SV19_0.9










NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

FILL FILL: Brown, fine grained silty sand with minor fine to coarse gravel with trace roots. Uniformly graded, rounded sand. Road base.

0.0 SV20_0.0

SC Clayey SAND: Red-brown, fine grained clayey sand with trace roots. Uniformly graded, rounded sand. Uniformly graded, rounded sand.

M

0.5 0.0 SV20_0.5

CLS Sandy CLAY: Medium plasticity. Dark red-brown, firm, sandy clay with minor roots. Uniformly graded, fine grained, rounded sand.

Orange-brown. Calcareous silt inclusions. D

0.0 SV20_0.9










NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

FILL

CLS

FILL: Grey-brown, fine grained silty sand with minor fine to coarse gravel with trace roots. Uniformly graded, rounded sand. Road base.

Sandy CLAY: Medium plasticity. Dark red-brown, firm, sandy clay with minor roots. Uniformly graded, rounded sand.

D

0.0 SV21_0.0

0.5

Orange-brown. Calcareous inclusions.

M

0.0 SV21_0.5


0.0 SV21_0.9









NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e

PID

(pp

m)

Sample ID

& Interval (QA/QC)


FILL

CLS

FILL: Grey-brown, fine grained silty sand with minor fine to coarse gravel with trace roots. Uniformly graded, rounded sand. Road base.

Sandy CLAY: Medium plasticity. Dark brown, firm, sandy clay with minor roots.

D

0.0 SV22_0.0

0.5

Orange-brown. Calcareous inclusions.

D-M

0.0 SV22_0.5


0.0 SV22_0.9







EQUIPMENT Hand Auger HOLE LOCATION (Easting, Northing) Everard Avenue


NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

FILL

CLS

FILL: Brown, fine grained silty sand with minor fine to coarse gravel with trace roots. Uniformly graded, rounded sand. Road base.

Sandy CLAY: Medium plasticity. Brown, firm, sandy clay with trace roots. Uniformly graded, fine grained, rounded sand.

D

0.0 SV23_0.0

0.5

Red-brown. No roots.

D-M

0.0 SV23_0.5

1.0

Orange. Calcareous inclusions.


0.0 SV23_0.9


0.0

0.0

0.0

HA

SV24_0.0

SV24_0.5

SV24_0.9

D

FILL

FILL

SC

FILL: Brown, fine grained silty sand with trace fine to coarse gravel with trace roots. Uniformly graded, rounded sand.

FILL: Orange-brown mottled grey, sandy clay. Gap graded, fine to medium grained, rounded sand. Anthropogenic material including: trace ceramic, glass and clinker.

Clayey SAND: Orange-brown, fine grained clayey sand with trace roots. Uniformly graded, rounded sand.


PID

(pp

m)

Wat

er

Cor

eR

ecov

ery

(%)


Met

hod Sample



Wel

lD

etai

ls

Moi

stur

e

PAGE 1 OF 1





NOTES



R.L. SURFACE DATUM

RL Casing

HOLE LOCATION (Easting, Northing) Everard Avenue

CLIENT EPA SA




1. S

EN

VE

RS

A S

TA

ND

AR

D

A12

8190

2_K

ES

WIC

KS

VIN

ST

ALL

.GP

J S

EN

VE

RS

A_G

INT

.GD

T

28/4

/17

Gra

phic

Log

Cla

ssifi

catio

nS

ymbo

l

Depth (m)

0.5

1.0








EQUIPMENT Hand Auger HOLE LOCATION (Easting, Northing) Croydon Road


NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

FILL FILL: Grey-brown, fine grained silty sand with minor fine to coarse gravel with trace roots. Uniformly graded, rounded sand. Road base.

D

0.0 SV25_0.0

CLS Sandy CLAY: Medium plasticity. Dark brown, firm, sandy clay with minor roots. Uniformly graded, rounded sand.

0.5 Light orange-white, firm, with minor calcareous silt inclusions.

D-M

0.0 SV25_0.5


0.0 SV25_0.9









NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)


0.0 SV27_0.0

CLS Sandy CLAY: Medium plasticity. Brown mottled dark brown, soft, sandy clay with trace roots. Uniformly graded, fine grained, rounded sand.

0.5 M 0.0 SV27_0.5

Dark red-brown.


0.0 SV27_0.9









NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

FILL FILL: Grey, fine grained silty sand with minor fine to coarse gravel with trace roots. Uniformly graded, rounded sand. Road base.

0.0 SV28_0.0

CLS Sandy CLAY: Medium plasticity. Red-brown, firm, sandy clay with minor roots. Uniformly graded, fine grained, rounded sand. Minor calcrete gravel encountered at 0.6 m bgl.

0.5 D-M 0.0 SV28_0.5

Light orange mottled white, with minor calcareous silt inclusions.


0.0 SV28_0.9









NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

HA

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

FILL FILL: Grey-brown, fine grained silty sand with minor fine to coarse gravel with trace roots. Uniformly graded, rounded sand. Road base.

D

0.0 SV29_0.0

CLS Sandy CLAY: Medium plasticity. Red-brown, firm, sandy clay with minor roots. Uniformly graded, fine grained, rounded sand.

0.5 0.0 SV29_0.5

Light orange mottled white, with minor calcareous silt inclusions.

D-M


0.0 SV29_0.9







EQUIPMENT Push Tube Geoprobe HOLE LOCATION (Easting, Northing) Day Avenue

HOLE SIZE 50 mm LOGGED BY SG CHECKED BY DW

NOTES


SE

NV

ER

SA

ST

AN

DA

RD

A

1281

902_

KE

SW

ICK

SV

INS

TA

LL.G

PJ

SE

NV

ER

SA

_GIN

T.G

DT

1.

28/4

/17

PT

M

etho

d

Cor

eR

ecov

ery

(%)

Wat

er

Wel

lD

etai

ls

Depth (m) G

raph

ic L

og

Cla

ssifi

catio

nS

ymbo

l


Moi

stur

e


PID

(pp

m)

Sample ID

& Interval (QA/QC)

FILL

ASPHALT: Asphalt. Moderate condition.

FILL: Grey, medium to coarse grained sandy gravel with trace roots. Poorly graded, subrounded gravel.

0.0 SV30_0.0

CLS Sandy CLAY: Medium plasticity. Dark brown, firm, sandy clay with trace roots. Uniformly graded, fine grained, rounded sand.

0.5 D 0.0 SV30_0.5

Red-brown.


0.0 SV30_0.9





DATE STARTED 23/3/1

Documents

Re: Stage 1 Environmental Assessment · 1. Introduction and Objective . Senversa Pty Ltd (Senversa) was engaged by the Environmental Protection Authority (EPA) to undertake the Stage