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Phase II Environmental Site Assessment 271 West Hunt Club Road, Ottawa, Ontario DST File No.: OEOT008007

DST Consulting Engineers Inc. - i - November 2007

PHASE II ENVIRONMENTAL SITE ASSESSMENT

271 West Hunt Club, Ottawa, Ontario

TABLE OF CONTENTS

Table of Contents ............................................................................................................. i List of Appendices ............................................................................................................ i

1. Introduction ................................................................................................................. 1–1

2. Background ................................................................................................................. 2–1 2.1 Site Description ................................................................................................ 2–1 2.2 Background ...................................................................................................... 2–1

3. Scope of Work ............................................................................................................. 3–1

4. Methodology ................................................................................................................ 4–1 4.1 Subsurface Investigation .................................................................................. 4–1 4.2 Soil Sampling Program .................................................................................... 4–1 4.3 Monitoring Well Installation and Groundwater Sampling Program .................... 4–2 4.4 Quality Assurance/Quality Control ................................................................... 4–3

5. Regulatory Criteria....................................................................................................... 5–1

6. Results and Discussion ............................................................................................... 6–2 6.1 Soil Investigation .............................................................................................. 6–2

6.1.1 Stratigraphy ....................................................................................... 6–2 6.1.2 Field Screening ................................................................................. 6–2 6.1.3 Soil Analytical Results ....................................................................... 6–2 6.1.4 Groundwater Analytical Results ......................................................... 6–2

7. Conclusions and Recommendations ........................................................................... 7–1

8. Qualifications of Assessor(s) ....................................................................................... 8–1

9. Limitations of Report .................................................................................................... 9–1

10. References ................................................................................................................ 10–1


DST Consulting Engineers Inc. - ii - November 2007

LIST OF APPENDICES

Appendix A – Figures

Appendix B – Summary Table of Analytical Results

Appendix C – Site Photographs

Appendix D – Borehole Logs

Appendix E – Laboratory Certificates of Analysis

Appendix F – Limitations of the Report


DST Consulting Engineers Inc. 1–1 November 2007

1. Introduction

DST Consulting Engineers Inc. (DST) was retained by MHPM Project Managers Inc. (MHPM)

on behalf of the Ottawa Humane Society (OHS) to complete a Phase II Environmental Site

Assessment (ESA) for part of a property located at 271 West Hunt Club Road, Ottawa, Ontario,

referred to as “Parcel A” (the “site”) (Figure 1).

The purpose of this work was to evaluate the environmental quality of soil and groundwater at

the subject site. Authorization to proceed with this work was received from Mr. Greg Ashley of

MHPM on October 17, 2007.

DST has prepared this report for the exclusive use of OHS and/or its agents in evaluating the

environmental condition of the site at the time of field investigation. DST will not be responsible

for the use of this report by any third party, or reliance on or any decision to be made based on

it without the prior written consent of DST. DST accepts no responsibility for damages, if any,

by any third party as a result of decisions or actions based on this report.



2. Background

2.1 Site Description The subject site is a triangle-shaped parcel of land located at 271 West Hunt Club Road (Figure

1). Access to the site is provided via a private asphalt road off the north side of West Hunt Club

Road. The subject site is part of a larger vacant land and is referred to as “Parcel A”. The site

area is approximately 1.2 ha, and is covered by tall grass and shrubs. The Ottawa Central

Railway runs along the north-western boundary of the site. Canadian Pacific Railway is located

approximately 80 m south-east of the site, and West Hunt Club Road is located approximately

150 m southwest of the site. The lands immediately adjacent to the south-eastern and south-

western boundaries of the site are vacant. The topography on the property and immediate areas

is flat, with the exception of the raised railway alignments. A Site Plan has been included as

Figure 1, Appendix A. Photographs of the site have been included in Appendix C.

2.2 Background A Phase II ESA was previously carried out for a larger parcel of land which included “Parcel A”

by John D. Patterson and Associates Ltd. (Patterson) entitled “Phase II Environmental Site

Assessment, Undeveloped Property, Part of Lots 28 and 29, Concession ‘A’ (Rideau front),

Hunt Club Road, City of Nepean, Ontario”, July 10, 2000, File No. E1621-01.LET. The previous

Phase II ESA covered a larger area including the subject site; however, laboratory analyses

were not specifically completed for “Parcel A” to evaluate the environmental quality of the soil

and groundwater. The site is located within an industrial setting, with present and historical

operations of a nearby bulk fuel terminal and the adjacent railway lines. Thus, DST

recommended a site-specific Phase II ESA be conducted in accordance with O. Reg. 153.



3. Scope of Work

In order to assess the environmental quality of soil and groundwater at the site, the following

scope of work was developed, in consultation with MHPM:

• Advancement of three boreholes, all of which converted to monitoring wells, to

assess the presence or absence of soil and groundwater contamination at the

subject site;

• Submission of one soil sample and one groundwater sample collected from each

borehole/monitoring well location for laboratory chemical analyses of petroleum

hydrocarbons fraction F1 to F4 (PHC F1-F4) and benzene, toluene, ethylbenzene,

and xylenes (BTEX); and

• Preparation of a report documenting the results of the investigation, including

borehole logs, results of soil and groundwater sample analyses, comparison of

analytical results to appropriate regulatory standards and the presentation of the

conclusions and recommendations of the assessment.



4. Methodology

4.1 Subsurface Investigation The field program was carried out at the subject site on November 15, 2007. A total of three

boreholes, all of which converted to monitoring wells, were completed to depths ranging from

5.5 to 6.1 m below existing surface grade using a tack-mounted CME 55 drilling rig equipped

with hollow-stem augers and split spoon samplers.

Borehole/monitoring well locations are indicated on Figure 1, Appendix A. Borehole logs are

included in Appendix D.

4.2 Soil Sampling Program A trained DST staff continuously supervised all drilling activities, and collected soil samples for

lithologic logging, field screening, and laboratory analyses. All soil samples were collected in

accordance with applicable environmental guidance manuals and applicable industry practices.

Soil samples were screened in the field using an RKI Eagle 101 catalytic combustible gas

detector (CCGD), and visual/olfactory observations. The screening for relative organic vapours

(ROV) was carried out on a portion of soil sample using the CCGD operating in the methane

elimination mode. The readings provide a measure of relative organic vapour levels, due to

presence of potential hydrocarbon contaminants, between soil samples; thus, providing a tool in

the evaluation of the presence of potential subsurface contamination. The CCGD readings, in

parts per million (ppm) hexane equivalent, are provided on the borehole logs in Appendix D. All

recovered soil samples were also visually described and classified as per standard procedures

outlined in the Canadian Foundation Engineering manual (CFEM, 2006). The general soil

stratigraphy of the the subject site is characterized by a top layer of silty sand to depths ranging

between 1.5 m to 1.7 m below the existing grade, followed by a silty clay layer at depths.

Soil from each recovered sample was placed directly into a laboratory supplied glass sample

jars. All soil samples were placed in an ice-packed cooler prior to and during shipment to

Maxxam Analytics Inc. (Maxxam) for chemical analyses. The criteria for selection of soil

samples for laboratory analyses were based on the results of field screening, and

visual/olfactory observations. A total of three soil samples, one from each borehole/monitoring

well, were submitted for laboratory analysis of PHC F1-F4 and BTEX.


DST Consulting Engineers Inc. November 2007

4.3 Monitoring Well Installation and Groundwater Sampling Program

A groundwater monitoring well was installed in each of the three boreholes to facilitate the

collection of groundwater samples. The monitoring wells were installed in accordance with the

Ontario Water Resources Act – R.R.O. 1990, Regulation 903, as amended. The monitoring

wells were constructed using 50 mm diameter, schedule 40, flush-joint threaded polyvinyl

chloride (PVC) screen and riser. Details of the installed monitoring well at each borehole

location are provided on the borehole logs in Appendix D. Clean sand (sand pack) was added

around annular space of well screen to at least 30 cm above the top of the screen, followed by a

bentonite seal to approximately 30 cm below the existing ground surface. The tops of the riser

pipes, which extend approximately 1 m above ground surface, were sealed with a j-plug and

protected with a steel protective casing. The following table illustrates the borehole/monitoring

well IDs, the associated GPS coordinates, and the depths to the groundwater level (metres

below existing surface grade - mbsg).

Borehole/Monitoring

Well ID

GPS Coordinates Groundwater Level

(November 15, 2007)

(mbsg)

Easting (m) Northing (m) Accuracy (m)

BHMW1 444573 5021123 ±4 1.61

BHMW2 444707 5021172 ±4 1.85

BHMW3 444662 5021122 ±7 1.88

All three monitoring wells were equipped with dedicated WaterraTM tubing and foot valves.

Before water sampling, each monitoring well was purged of approximately three volumes of

water or until dry to remove any residual sediment or drill cuttings. A total of three groundwater

samples (one from each monitoring well) were collected and submitted to Maxxam for chemical

analyses of PHC F1-F4 and BTEX. All sample containers were stored in cooler before and

during transportation to the laboratory.



4.4 Quality Assurance/Quality Control DST maintains a standard Quality Assurance/Quality Control (QA/QC) program for all Phase II

ESAs. The field sampling and QA/QC program was completed in accordance with the

applicable Guidance on Sampling and Analytical Methods for Use at Contaminated Site in

Ontario (MOE, 1996). Documentation of the field results such as location, weather, field

measurements, number of samples, parameters collected for, time sampled, volume,

hydrocarbon readings and equipment type were completed. All project documentation was

maintained and controlled under each specific work site and sampling area by the appointed

site supervisor. Boring, monitoring well installation, soil and groundwater sampling was

completed in accordance with industry standards, and applicable provincial guidelines/

standards. The soil samples were placed in laboratory supplied containers and maintained at

approximately 4°C in an ice chest, under a Chain of Custody protocol prior to being submitted

for chemical analyses to Maxxam, which is a certified laboratory by the Canadian Association

for Environmental Analytical Laboratories (CAEAL) and/or Standards Council of Canada (SCC).



5. Regulatory Criteria

The soil and groundwater sample analytical results were compared to the following standards:

• Ministry of Environment (MOE) Soil, Ground Water and Sediment Standards for use

Under Part XV.1 of the Environmental Protection Act – Table 3, Full Depth Generic Site

Condition Standards in A Non-Potable Ground Water Condition – “Industrial/

Commercial/ Community Property Use” for soil, and “All Types of Property Use” for

groundwater.

MOE Table 3 Standards apply to the site, as the vicinity area of the site is supplied by municipal

drinking water, and the site is not characterized as an environmentally sensitive site under the

Ontario Regulation (O.Reg.) 153/04. The subject property is located within an area of industrial

land use designation. The subject site consists of mixed fine and coarse soil material. As such,

the most stringent grain-size based MOE Table 3 criteria for soil and groundwater is used for

the current assessment.



6. Results and Discussion

The soil and groundwater analytical results are summarized in Table B-1 and Table B-2,

respectively. The Laboratory Certificates of Analysis are included in Appendix E.

6.1 Soil Investigation

6.1.1 Stratigraphy Based on soil data collected at the site, the subject site is characterized by a top layer of silty

sand at depth ranging between 1.5 m to 2.0 m below the existing surface grade, followed by

silty clay to depth. The borehole logs are included in Appendix D.

6.1.2 Field Screening Total hydrocarbon vapour concentration measurements recorded in the soil samples collected

at the subject property were found at various levels ranging from non-detectable to 100 ppm.

There was no visual or olfactory evidence of PHC impact observed in any of the samples

collected. No sheens, free-phase liquid petroleum hydrocarbons, or odour was noted during the

drilling and subsequent groundwater sampling activities. The gas detector readings are included

in the borehole logs in Appendix D.

6.1.3 Soil Analytical Results Based on a comparison of the soil sample laboratory analytical results with the MOE Table 3

standards, all soil samples met the applicable criteria for PHC F1-F4 and BTEX parameters.

6.1.4 Groundwater Analytical Results Based on a comparison of the groundwater sample laboratory analytical results with the MOE

Table 3 standards, all groundwater samples met the applicable criteria for PHC F1-F4 and

BTEX parameters.


DST Consulting Engineers Inc 7–1 November 2007

7. Conclusions and Recommendations

DST Consulting Engineers Inc. (DST) has completed a Phase II Environmental Site

Assessment (ESA) at a Ottawa Humane Society property located at 271 West Hunt Club,

Ottawa, Ontario (the “site”). The subject site is referred to as “Parcel A” (Figure 1).

Three boreholes were advanced at the subject site, all of which were converted to monitoring

wells. One soil sample and one groundwater sample were collected from each of the

borehole/monitoring well locations, and were submitted to Maxxam Analytics Inc. for chemical

analyses of petroleum hydrocarbons fraction F1 to F4 (PHC F1-F4), benzene, ethylbenzene,

toluene, and xylene (BTEX).

Based on a comparison of the laboratory analytical results with the applicable provincial

standards (MOE, 2004: Table 3 industrial/ commercial/community property use) all soil and

groundwater samples submitted for analyses reported concentrations below the applicable

standard for all parameters analyzed. Therefore, there is no evidence that the contaminants of

concern are present at this site at concentrations exceeding the reference criteria.

The Ontario MOE Well Regulation 903 (O.Reg. 903) of the Ontario Water Resources Act

defines monitoring wells, standpipes, and open piezometers as a special type of well referred to

as “Test Hole”. As such, the monitoring wells installed at the subject site should be

decommissioned in accordance with O. Reg. 903, as amended.


DST Consulting Engineers Inc 8–1 November 2007

8. Qualifications of Assessor(s)

Vahid Arasteh, M.Eng., E.I.T., is a project manager with DST. He has been involved in

numerous studies in the environmental industry including Phase I, II and III Environmental Site

Assessments, hydrogeological, and geotechnical assessments. Activities include air photo

interpretation, ground and surface water sampling, soil sampling, site remediation, geotechnical

field investigation, contractor supervision, interpretation of laboratory results, and report

preparation.

Shahid Mansur, P.Eng., is the senior reviewer. He has fifteen years of engineering experience

related to the environmental industry. Mr. Mansur is currently a senior engineer with DST. He is a

designated “Qualified Person” as defined under O.Reg. 153/04. His responsibilities include project

management, environmental and geotechnical engineering, Site investigations, testing and

inspection, construction plans and engineering reviews and supervision of the Ottawa

geotechnical laboratory. Mr. Mansur has worked on numerous projects involving environmental,

geotechnical, and civil engineering studies, as well as quality assurance and quality control.

Experience in the environmental industry includes Phase I, II and III Environmental Site

Assessments, remediation investigations, feasibility studies, remediation/mitigation design and

implementation, hydrogeological assessments, geotechnical assessments, etc.



10. References

Ontario Ministry of Environment, 1996. Guidance on Sampling and Analytical Methods for Use at Contaminated Sites in Ontario. Ontario Queen’s Printer.

Ontario Ministry of Environment, 2004. Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Ontario Environmental Protection Act. Ontario Queen’s Printer.

Ontario Regulation 153/04 – Records of Site Condition – Part XV.1 of the Environmental Protection Act. Ontario Queen’s Printer.

Ontario Regulation 903, as amended to 372/07 – Wells Regulation, Ontario Water Resources Act. Ontario Queen’s Printer.

Canadian Geotechnical Society, 2006, Canadian Foundation Engineering Manual, 4th Edition.

Canadian Standards Association International March (CSA), 2000, CSA Standard Z769-00, Phase II Environmental Site Assessment.



APPENDIX A

Figure



APPENDIX B

Summary Tables of Analytical Results

Phase II Environmental Site Assessment271 West Hunt Club Road, OntarioDST File No.: OE-OT-008007

Table B - 1: Soil Analytical Results

BHMW1 SS6 BHMW2 SS6 BHMW3 SS6

(4.0 - 4.6 m) (3.7 - 4.3 m) (3.7 - 4.3 m)

BTEX

0.02 <0.02 <0.02 <0.02 5.3

0.02 <0.02 <0.02 <0.02 290

0.02 <0.02 <0.02 <0.02 34

0.04 <0.04 <0.04 <0.04 NG

0.02 <0.02 <0.02 <0.02 NG

0.04 <0.04 <0.04 <0.04 34

Petroleum Hydrocarbons

10 <10 <10 <10 230

10 <10 <10 <10 150

10 <10 <10 <10 1700

10 <10 <10 <10 3300

Notes: - All units are micrograms per gram (µg/g)

MOE (1)

NG

<

Value

Standards

p+m-Xylene

o-Xylene

Method Detection Limit

F3 (C16 - C34)

F2 (C10 - C16)

MOE (1)

(Table 3)

- Less than the Laboratory Detection Limit (value indicated).

Benzene

- No standard value available.

- Sample result exceeds the MOE (1) standard.

Xylenes (Total)

- Ontario Ministry of the Environment (MOE), "Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act", March 9, 2004. Table 3: Full Depth Generic Site Condition Standards (Indistrial/Commercial/Community Property Use). Criteria is for coarse-textured soil.

F4 (C34 - C50)

F1 (C6 - C10)

Ethylbenzene

Toluene

Parameter Description[µg/g]

Analytical Results(Sample ID / Depth - metres below existing grade)

DST CONSULTING ENGINEERS INC.



APPENDIX C

Site Photographs



Photographs Page 1 of 2

Photo 1 – The subject site, looking west.

Photo 2 – Borehole drilling operation.



Photographs Page 2 of 2

Photo 3 – Monitoring well construction.

Photo 4 – An installed monitoring well.



APPENDIX D

Borehole Logs

AG1

SS1

SS2

SS3

SS4

SS5

SS6

SS7

SS8

GRASS COVERSAND - silty, brown

- sand, silty, light brown

CLAY - silty, brown

- clay, silty, grey

End of borehole at 5.80 m depth.

0

0

5

10

5

10

85

5

75

8

4

5

2

2

2

2

2

Groundwater levelnoted to be 1.61 mbelow original surfacegrade onNovember 15, 2007.

PAGE 1 OF 1

DPTH ELEVm

DPTHm

80

SUBSURFACE PROFILE

mREMARKS

CCGD/PID *

LOCATION: 271 West Hunt Club Road, Ottawa, Ontario

N-

Value

Rock Core

Value

PPM

MINIRAE (PPM)

SAMPLE TYPE LEGEND

Thin Wall Tube

* Catalytic Combustible Gas Detector / Photo Ionization Detector

Type

SAMPLES

Thin Wall Tube

LOG OF BOREHOLE / MONITORING WELL BHMW1

Side Sampler

DST REF. No.: OE-OT-008007

MATERIAL DESCRIPTION

WATER

SAMPLES

SURFACE ELEV.: --/--

APPENDIX D

DATA

Rock Core

60MATERIAL DESCRIPTION ELEV

SPT

Type

Drilling DataMETHOD: CME 55 Drill RigDIAMETER: 200 mm

DATE: November 15 2007

PAGE 1 OF 1

SYMBL

SAMPLE TYPE LEGEND

GASTECBH (OTTAW

A) HUM

AINE GINTS.GPJ DST_M

IN.GDT 11/28/07

SYMBL

CLIENT: Ottawa Humane Society

Split Spoon Sample

SUBSURFACE PROFILE

Ponar Sample

Grab Sample

PROJECT: Phase II Environmental Site Assessment

5 10 15 20

40

DST Consulting Engineers Inc.203 - 2150 THURSTON DRIVEOTTAWA, ONTARIO, K1G 5T9

PH: (613)748-1415FX: (613)748-1356

Email: [email protected]: www.dstgroup.com

WATER

DATA

Ponar Sample

No.

Split Spoon Sample

RKI EAGLE (PPM)

N-

m

SURFACE

Auger Sample

REMARKS

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

Grab Sample

Side Sampler

20

Auger Sample

SURFACE

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GASTECBH (OTTAWA) HUMAINE GINTS.GPJ DST_MIN.GDT 11/28/07

AG1

SS1

SS2

SS3

SS4

SS5

SS6

SS7

SS8

GRASS COVERSAND - silty, brown

- sand, silty, light brown

CLAY - silty, grey

- layer of silty sand

SAND - silty, brown

CLAY - silty, some sand, grey

End of borehole at 5.49 m depth.

0

0

25

10

70

15

100

5

15

7

2

2

2

2

2

2

2

Groundwater levelnoted to be 1.88 mbelow original surfacegrade onNovember 15, 2007.

PAGE 1 OF 1

DPTH ELEVm

DPTHm

80

SUBSURFACE PROFILE

mREMARKS

CCGD/PID *

LOCATION: 271 West Hunt Club Road, Ottawa, Ontario

N-

Value

Rock Core

Value

PPM

MINIRAE (PPM)

SAMPLE TYPE LEGEND

Thin Wall Tube

* Catalytic Combustible Gas Detector / Photo Ionization Detector

Type

SAMPLES

Thin Wall Tube

LOG OF BOREHOLE / MONITORING WELL BHMW3

Side Sampler

DST REF. No.: OE-OT-008007

MATERIAL DESCRIPTION

WATER

SAMPLES

SURFACE ELEV.: --/--

APPENDIX D

DATA

Rock Core

60MATERIAL DESCRIPTION ELEV

SPT

Type

Drilling DataMETHOD: CME 55 Drill RigDIAMETER: 200 mm

DATE: November 15 2007

PAGE 1 OF 1

SYMBL

SAMPLE TYPE LEGEND

GASTECBH (OTTAW

A) HUM

AINE GINTS.GPJ DST_M

IN.GDT 11/28/07

SYMBL

CLIENT: Ottawa Humane Society

Split Spoon Sample

SUBSURFACE PROFILE

Ponar Sample

Grab Sample

PROJECT: Phase II Environmental Site Assessment

5 10 15 20

40

DST Consulting Engineers Inc.203 - 2150 THURSTON DRIVEOTTAWA, ONTARIO, K1G 5T9

PH: (613)748-1415FX: (613)748-1356

Email: [email protected]: www.dstgroup.com

WATER

DATA

Ponar Sample

No.

Split Spoon Sample

RKI EAGLE (PPM)

N-

m

SURFACE

Auger Sample

REMARKS

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Grab Sample

Side Sampler

20

Auger Sample

SURFACE



APPENDIX E

Laboratory Certificates of Analysis

Your Project #: OE-OT-008007 Site: WEST HUNTCLUB RD Your C.O.C. #: 4462

Attention: Vahid ArastehDST Consulting EngineersOttawa - Standing Offer2150 Thurston DrUnit 203Ottawa, ONK1G 5T9

Report Date: 2007/11/21

CERTIFICATE OF ANALYSIS

MAXXAM JOB #: A7C7308Received: 2007/11/16, 10:00

Sample Matrix: Soil# Samples Received: 3

Date Date MethodAnalyses Quantity Extracted Analyzed Laboratory Method ReferencePetroleum Hydro. CCME F1 & BTEX in Soil ( 1 ) 3 2007/11/16 2007/11/16 CAM SOP-00315 CCME CWS Petroleum Hydrocarbons F2-F4 in Soil ( 1 ) 3 2007/11/16 2007/11/16 CAM SOP-00316 CCME CWS MOISTURE ( 1 ) 3 N/A 2007/11/16 Ont SOP-0114 MOE HANDBOOK(1983)

Sample Matrix: Water# Samples Received: 3

Date Date MethodAnalyses Quantity Extracted Analyzed Laboratory Method ReferencePetroleum Hydro. CCME F1 & BTEX in Water ( 1 ) 3 N/A 2007/11/20 CAM SOP-00315 CCME CWS Petroleum Hydrocarbons F2-F4 in Water ( 1 ) 3 2007/11/19 2007/11/19 CAM SOP-00316 CCME Hydrocarbons

* RPDs calculated using raw data. The rounding of final results may result in the apparent difference.

(1) This test was performed by Maxxam Ottawa

Encryption Key

Please direct all questions regarding this Certificate of Analysis to your Project Manager.

CHRISTINE MCLEAN, Project ManagerEmail: [email protected]# (905) 817-5700

====================================================================Maxxam has procedures in place to guard against improper use of the electronic signature and have the required "signatories", as per section

Page 1 of 8

Your Project #: OE-OT-008007 Site: WEST HUNTCLUB RD Your C.O.C. #: 4462

Attention: Vahid ArastehDST Consulting EngineersOttawa - Standing Offer2150 Thurston DrUnit 203Ottawa, ONK1G 5T9

Report Date: 2007/11/21

CERTIFICATE OF ANALYSIS-2-

5.10.2 of ISO/IEC 17025:2005(E), signing the reports. SCC and CAEAL have approved this reporting process and electronic report format.

Total cover pages: 2

Page 2 of 8

DST Consulting EngineersMaxxam Job #: A7C7308 Client Project #: OE-OT-008007Report Date: 2007/11/21 Project name: WEST HUNTCLUB RD

Sampler Initials:

O'REG 153 PETROLEUM HYDROCARBONS (SOIL)

Maxxam ID V 8 9 9 6 8 V 8 9 9 6 9 V 8 9 9 7 0Sampling Date 2007/11/15 2007/11/15 2007/11/15

12:00 12:00 12:00COC Number 4462 4462 4462 U n i t s BHMW1 SS6 BHMW2 SS6 BHMW3 SS6 R D L QC Batch

INORGANICS

Moisture % 41 44 42 0.2 1406835

F1 PHC and BTEX

Benzene ug/g <0.02 <0.02 <0.02 0.02 1406829

Toluene ug/g <0.02 <0.02 <0.02 0.02 1406829

Ethylbenzene ug/g <0.02 <0.02 <0.02 0.02 1406829

o-Xylene ug/g <0.02 <0.02 <0.02 0.02 1406829

p+m-Xylene ug/g <0.04 <0.04 <0.04 0.04 1406829

Total Xylenes ug/g <0.04 <0.04 <0.04 0.04 1406829

F1 (C6-C10) ug/g <10 <10 <10 10 1406829

F1 (C6-C10) - BTEX ug/g <10 <10 <10 10 1406829

F2-F4 PHC

F2 (C10-C16 Hydrocarbons) ug/g <10 <10 <10 10 1406834



Reached Baseline at C50 ug/g Yes Yes Yes 1406834

Surrogate Recovery (%)

1,4-Difluorobenzene % 96 95 96 1406829

4-Bromofluorobenzene % 103 101 105 1406829

D10-Ethylbenzene % 91 96 95 1406829

D4-1,2-Dichloroethane % 110 108 111 1406829

o-Terphenyl % 90 83 89 1406834

RDL = Reportable Detection LimitQC Batch = Quality Control Batch

Page 3 of 8


Sampler Initials:

PETROLEUM HYDROCARBONS (CCME)

Maxxam ID V 8 9 9 7 1 V 8 9 9 7 2 V 8 9 9 7 3Sampling Date 2007/11/16 2007/11/16 2007/11/16

09:00 09:00 09:00COC Number 4462 4462 4462 U n i t s BHMW1 WGS1 BHMW2 WGS1 BHMW3 WGS1 R D L QC Batch

F1 PHC and BTEX

Benzene ug/L <0.2 <0.2 <0.2 0.2 1409276

Toluene ug/L 0.3 0.3 0.5 0.2 1409276

Ethylbenzene ug/L <0.2 <0.2 <0.2 0.2 1409276

o-Xylene ug/L <0.2 <0.2 <0.2 0.2 1409276

p+m-Xylene ug/L <0.4 <0.4 <0.4 0.4 1409276

Total Xylenes ug/L <0.4 <0.4 <0.4 0.4 1409276

F1 (C6-C10) ug/L <100 <100 <100 100 1409276

F1 (C6-C10) - BTEX ug/L <100 <100 <100 100 1409276

F2-F4 PHC

F2 (C10-C16 Hydrocarbons) ug/L <100 <100 <100 100 1408039



Reached Baseline at C50 ug/L Yes Yes Yes 1408039

Surrogate Recovery (%)

1,4-Difluorobenzene % 90 90 90 1409276

4-Bromofluorobenzene % 108 108 109 1409276

D10-Ethylbenzene % 110 109 108 1409276

D4-1,2-Dichloroethane % 110 111 108 1409276

o-Terphenyl % 103 105 101 1408039

RDL = Reportable Detection LimitQC Batch = Quality Control Batch

Page 4 of 8


Sampler Initials:

GENERAL COMMENTS

Results relate only to the items tested.

Page 5 of 8

DST Consulting EngineersAttention: Vahid Arasteh Client Project #: OE-OT-008007P.O. #: Project name: WEST HUNTCLUB RD

Quality Assurance ReportMaxxam Job Number: TA7C7308

QA/QC DateBatch AnalyzedNum Init QC Type Parameter yyyy/mm/dd Value Recovery Units QC Limits

1406829 STE MATRIX SPIKE 1,4-Difluorobenzene 2007/11/16 96 % 60 - 1404-Bromofluorobenzene 2007/11/16 102 % 60 - 140D10-Ethylbenzene 2007/11/16 100 % 30 - 130D4-1,2-Dichloroethane 2007/11/16 111 % 60 - 140Benzene 2007/11/16 107 % 60 - 140Toluene 2007/11/16 89 % 60 - 140Ethylbenzene 2007/11/16 94 % 60 - 140o-Xylene 2007/11/16 100 % 60 - 140p+m-Xylene 2007/11/16 101 % 60 - 140F1 (C6-C10) 2007/11/16 78 % 60 - 140

Spiked Blank 1,4-Difluorobenzene 2007/11/16 96 % 60 - 1404-Bromofluorobenzene 2007/11/16 102 % 60 - 140D10-Ethylbenzene 2007/11/16 109 % 30 - 130D4-1,2-Dichloroethane 2007/11/16 111 % 60 - 140Benzene 2007/11/16 104 % 60 - 140Toluene 2007/11/16 90 % 60 - 140Ethylbenzene 2007/11/16 94 % 60 - 140o-Xylene 2007/11/16 99 % 60 - 140p+m-Xylene 2007/11/16 100 % 60 - 140F1 (C6-C10) 2007/11/16 90 % 60 - 140

Method Blank 1,4-Difluorobenzene 2007/11/16 97 % 60 - 1404-Bromofluorobenzene 2007/11/16 103 % 60 - 140D10-Ethylbenzene 2007/11/16 104 % 30 - 130D4-1,2-Dichloroethane 2007/11/16 111 % 60 - 140Benzene 2007/11/16 <0.02 ug/gToluene 2007/11/16 <0.02 ug/gEthylbenzene 2007/11/16 <0.02 ug/go-Xylene 2007/11/16 <0.02 ug/gp+m-Xylene 2007/11/16 <0.04 ug/gTotal Xylenes 2007/11/16 <0.04 ug/gF1 (C6-C10) 2007/11/16 <10 ug/gF1 (C6-C10) - BTEX 2007/11/16 <10 ug/g

RPD Benzene 2007/11/16 NC % 50Toluene 2007/11/16 NC % 50Ethylbenzene 2007/11/16 NC % 50o-Xylene 2007/11/16 NC % 50p+m-Xylene 2007/11/16 NC % 50Total Xylenes 2007/11/16 NC % 50F1 (C6-C10) 2007/11/16 NC % 50F1 (C6-C10) - BTEX 2007/11/16 NC % 50

1406834 PRB MATRIX SPIKE o-Terphenyl 2007/11/16 87 % 30 - 130F2 (C10-C16 Hydrocarbons) 2007/11/16 83 % 60 - 130F3 (C16-C34 Hydrocarbons) 2007/11/16 83 % 60 - 130F4 (C34-C50 Hydrocarbons) 2007/11/16 83 % 60 - 130

Spiked Blank o-Terphenyl 2007/11/16 78 % 30 - 130F2 (C10-C16 Hydrocarbons) 2007/11/16 81 % 60 - 130F3 (C16-C34 Hydrocarbons) 2007/11/16 81 % 60 - 130F4 (C34-C50 Hydrocarbons) 2007/11/16 81 % 60 - 130

Method Blank o-Terphenyl 2007/11/16 65 % 30 - 130F2 (C10-C16 Hydrocarbons) 2007/11/16 <10 ug/gF3 (C16-C34 Hydrocarbons) 2007/11/16 <10 ug/gF4 (C34-C50 Hydrocarbons) 2007/11/16 <10 ug/g

RPD F2 (C10-C16 Hydrocarbons) 2007/11/16 4.2 % 50F3 (C16-C34 Hydrocarbons) 2007/11/16 7.6 % 50F4 (C34-C50 Hydrocarbons) 2007/11/16 NC % 50

Page 6 of 8


Quality Assurance Report (Continued)Maxxam Job Number: TA7C7308


1406835 STE RPD Moisture 2007/11/16 0 % 501408039 PRB MATRIX SPIKE o-Terphenyl 2007/11/19 101 % 30 - 130

F2 (C10-C16 Hydrocarbons) 2007/11/19 85 % 60 - 130F3 (C16-C34 Hydrocarbons) 2007/11/19 85 % 60 - 130F4 (C34-C50 Hydrocarbons) 2007/11/19 85 % 60 - 130

Spiked Blank o-Terphenyl 2007/11/19 113 % 30 - 130F2 (C10-C16 Hydrocarbons) 2007/11/19 89 % 60 - 130F3 (C16-C34 Hydrocarbons) 2007/11/19 89 % 60 - 130F4 (C34-C50 Hydrocarbons) 2007/11/19 89 % 60 - 130

Method Blank o-Terphenyl 2007/11/19 110 % 30 - 130F2 (C10-C16 Hydrocarbons) 2007/11/19 <100 ug/LF3 (C16-C34 Hydrocarbons) 2007/11/19 <100 ug/LF4 (C34-C50 Hydrocarbons) 2007/11/19 <100 ug/L

RPD F2 (C10-C16 Hydrocarbons) 2007/11/19 NC % 50F3 (C16-C34 Hydrocarbons) 2007/11/19 NC % 50F4 (C34-C50 Hydrocarbons) 2007/11/19 NC % 50

1409276 STE MATRIX SPIKE 1,4-Difluorobenzene 2007/11/20 90 % 70 - 1304-Bromofluorobenzene 2007/11/20 108 % 70 - 130D10-Ethylbenzene 2007/11/20 109 % 70 - 130D4-1,2-Dichloroethane 2007/11/20 113 % 70 - 130Benzene 2007/11/20 119 % 70 - 130Toluene 2007/11/20 103 % 70 - 130Ethylbenzene 2007/11/20 106 % 70 - 130o-Xylene 2007/11/20 112 % 70 - 130p+m-Xylene 2007/11/20 114 % 70 - 130F1 (C6-C10) 2007/11/20 103 % 70 - 130

Spiked Blank 1,4-Difluorobenzene 2007/11/20 90 % 70 - 1304-Bromofluorobenzene 2007/11/20 108 % 70 - 130D10-Ethylbenzene 2007/11/20 118 % 70 - 130D4-1,2-Dichloroethane 2007/11/20 110 % 70 - 130Benzene 2007/11/20 118 % 70 - 130Toluene 2007/11/20 103 % 70 - 130Ethylbenzene 2007/11/20 106 % 70 - 130o-Xylene 2007/11/20 112 % 70 - 130p+m-Xylene 2007/11/20 114 % 70 - 130F1 (C6-C10) 2007/11/20 97 % 70 - 130

Method Blank 1,4-Difluorobenzene 2007/11/20 91 % 70 - 1304-Bromofluorobenzene 2007/11/20 107 % 70 - 130D10-Ethylbenzene 2007/11/20 121 % 70 - 130D4-1,2-Dichloroethane 2007/11/20 108 % 70 - 130Benzene 2007/11/20 <0.2 ug/LToluene 2007/11/20 <0.2 ug/LEthylbenzene 2007/11/20 <0.2 ug/Lo-Xylene 2007/11/20 <0.2 ug/Lp+m-Xylene 2007/11/20 <0.4 ug/LTotal Xylenes 2007/11/20 <0.4 ug/LF1 (C6-C10) 2007/11/20 <100 ug/LF1 (C6-C10) - BTEX 2007/11/20 <100 ug/L

RPD Benzene 2007/11/20 NC % 40Toluene 2007/11/20 NC % 40Ethylbenzene 2007/11/20 NC % 40o-Xylene 2007/11/20 NC % 40p+m-Xylene 2007/11/20 NC % 40Total Xylenes 2007/11/20 NC % 40F1 (C6-C10) 2007/11/20 NC % 40

Page 7 of 8


Quality Assurance Report (Continued)Maxxam Job Number: TA7C7308


1409276 STE RPD F1 (C6-C10) - BTEX 2007/11/20 NC % 40

NC = Non-calculableRPD = Relative Percent DifferenceSPIKE = Fortified sample

Page 8 of 8



APPENDIX F

Limitations of Report



LIMITATIONS

The information, conclusions and recommendations given herein are specifically for this project

and this client only, and the scope of work described herein. It may not be sufficient for other

uses.

As documented in this report, some information used by DST Consulting Engineers Inc. (DST)

in this assessment has been obtained from various sources of information (i.e. laboratories)

believed to be reliable. Although our recommendations are partly based on such information,

our services did not include the verification of its accuracy or authenticity. Should such

information prove to be inaccurate or unreliable, DST reserves the right to amend or revise its

recommendation.

The conclusions and recommendations regarding environmental conditions, which are

presented in this report, are based on a scope of work authorized by the client. Note, however,

that virtually no scope of work, no matter how exhaustive, can identify all contaminants or all

conditions above and below ground. For example, conditions between test holes may differ

from those encountered in the investigation and conditions may change with time. This report

therefore cannot warrant that all conditions on or off the site are represented by those identified

at specific locations.

Note also that standards, guidelines and practices related to environmental investigations may

change with time. Those which were applied at the time of this investigation may be obsolete or

unacceptable at a later date.

The comments given in this report on potential remediation problems and possible methods are

intended only for the guidance of the designer. The scope of work may not be sufficient to

determine all of the factors that may affect construction or clean-up methods and costs.

Contractors bidding on this project or undertaking clean-ups should, therefore, make their own

interpretation of the factual information presented and draw their own conclusions as to how the

conditions may affect their work.

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