Record of Site Condition # 212289 Record of Site

Transcription

Ontario Ministry of the Environment - Record of Site Condition # 212289
Record of Site Condition
Under Part XV.1 of the Environment Protection Act
Summary
Record of Site Condition Number
Date Filed to Environmental Site Registry
Certification Date
Current Property Use
Intended Property Use
Certificate of Property Use Number
Applicable Site Condition Standards**
Property Municipal Address
212289
24/02/2014
05/09/2013
Commercial
Commercial
No CPU
Full Depth Generic Site Conditions Standard,
with Potable Ground Water, Coarse Textured
Soil, for Commercial property use
625 St. Clair Street N7L 3L3
Notice to Readers Concerning Due Diligence
This record of site condition has been filed in the Environmental Site Registry to which the public has
access and which contains a notice advising users of the Environmental Site Registry who have dealings
with any property to consider conducting their own due diligence with respect to the environmental
condition of the property, in addition to reviewing information in the Environmental Site Registry.
Contents of this Record of Site Condition
This record of site condition consists (RSC) of this document which is available to be printed directly from
the Environmental Site Registry as well as all supporting documentation indicated in this RSC to have been
submitted in electronic format to the Ministry of the Environment.
RSC Information
Each field marked by an asterisk ( * ) must be completed.
Is the property used, or has it ever been used, in whole or in part for an industrial use or as a garage;
a bulk liquid dispensing facility, including a gasoline outlet; or for the operation of dry cleaning equipment? *
Yes
No
Is the property being used or has the property ever been used, in whole or in part
(a) for quarrying to excavate consolidated or unconsolidated aggregate; or
(b) for that aspect of the production of oil and gas consisting of the presence of an oil well or gas well on, in or under the property? *
Yes
No
Is the property currently used for an agricultural or other use, or a community use, an institutional use, a parkland use or a residential use? *
Yes
No
Select Type of RSC *
Phase 1 and 2 RSC
Phase 1 and 2 RSC with RA
Owner Information
Owners' General Information
Submitting Owner's Information
RSC Property Information
Environmental Condition
Owner's Information
Is the submitting owner(s) a Receiver for the Property? *
Yes
No
Is the submitting owner(s) represented by an Agent? *
Contaminant Concentrations
ESA Information
QP Profile Information
Certification Statement
Supporting Documents
Yes
No
Owner Information
Owner's Information
Type of Owner *
Owner Name *
Firm, Corporation or Partnership
2313131 Ontario Inc.
Street Number *
Street Name *
23
Ivan Street
Apt No. /RR No.
City, Town or Village *
Province *
Postal Code *
Country
ESA Information
Chatham
Ontario
N7M 5J4
Canada
Submitting Owner's Contact Information
Contact First Name *
Contact Last Name *
Win
Elzinga
Phone Number * (including area code)
Fax Number (including area code)
Email Address
(519) 354-2193
(519) 352-4272
[email protected]
Owner Information
Property Address
Does the Property have a Municipal Address?
Property Address
Yes
Municipality Information
No
Property Reference Number
Geographical Reference/Area of
RSC Property
Previously Filed RSC(s) and TN(s)
ESA Information
*
Is the property administered by MNR under the Public Lands Act?
*
Yes
No
Street Number * Street Name *
625
Apt No. /RR No.
St. Clair Street
Province *
Postal Code *
Chatham
Ontario
N7L 3L3
Owner Information
Municipality & Property Address Information
Property Address
Lower or Single Tier Municipality *
Chatham-Kent
Tier of Municipality
Single Tier
RSC Property
The District Office of MOE *
Sarnia District Office
Address of District Office of MOE
ESA Information
1094 London Rd., Sarnia ON N7S 1P1
Owner Information
Municipality & Property Address Information
Property Address
Assessment Roll Number
3650420043047000000
RSC Property
ESA Information
Property Identifier Number (PIN #)
00737-0511 (LT)
Owner Information
Geo Reference & Other Properties Details
Geographical References
Property Address
UTM Coordinates
Datum
NAD 83
Zone *
RSC Property
17
Easting *
400,271.23
Northing *
4,697,694.36
ESA Information
Area of RSC Property
Total Area of RSC Property in Hectares *
0.6968
Owner Information
Previous Submission Information
Previously Filed Record of Site Condition Number:
Property Address
Previously Filed Transition Notice Number:
RSC Property
ESA Information
Owner Information
Site Condition Information
Other Site Condition Information
Site Conditions for 2011 Generic
Standards
Risk Assessment Information
Property Use and Certification
Date
Remedial Action and Mitigation
Details
Area(s) of Potential Environmental
Concern
Table of Current/Past Property Uses
of Phase One Property
ESA Information
Is the RSC being submitted using the transition provision under Section 21.1 of the Regulation?
Yes
No
*
Owner Information
Site Condition Information
Standards
Site Conditions for 2011 Generic Standards
Is Property:
(i) Within an area of natural significance? or
Does Property:
(ii) Include or is adjacent to an area of natural significance or part of such an area? or
(ii) Include land that is within 30 m of an area of natural significance or part of such an area.
Yes
Date
No
Details
Concern
Soil at the property has:
(i) a pH value for Surface Soil less than 5 or greater than 9 or
(ii) a pH value for Subsurface Soil less than 5 or greater than 11.
*
*
Yes
No
Is qualified person of the opinion that, given the characteristics of the property and the certifications the
qualified person would be required to make in a record of site condition in relation to the property as specified
in Schedule A, it is appropriate to apply this section to the property? *
Yes
ESA Information
No
What is the intended use of the property? *
Commercial
Is the property a shallow soil property?
*
Yes
No
Does the property include or is the property adjacent to a water body or does it include land that is within
30 metres of a water body? *
Yes
No
What is the Assessment/Restoration approach?
*
Background
Full Depth Generic
Stratified
What is the ground water condition for the property?
*
Potable
Non-potable
What is the texture of the soil?
*
Coarse
Medium and Fine
Applicable 2011 Generic Standard Table Number : TABLE 2
Owner Information
Has a Certificate of Property Use (CPU) been issued under section 168.6 of the Act for the RSC property?
Yes
Standards
Date
Details
Concern
ESA Information
No
Owner Information
Property Use and Certification Date
Current Property Use and Certification Date
What is the current use of the property? *
Commercial
Standards
Date
Details
Concern
ESA Information
Certification Date *
2013/09/05
Owner Information
Remedial Action & Mitigation
Soil Control or Treatment Measures
Standards
Identify the estimated quantities of the soil, if any, originating at and remaining on the RSC property that have
been remediated, at a location either on or off the property, to reduce the concentration of contaminants in the
soil as measured in, or equivalent to, in-ground volume in cubic metres, and indicate the remediation process or
processes used and the estimated amount of soil remediated by each identified process.
Data
Details
Concern
Identify the estimated quantities of soil or sediment, if any, removed from and not returned to the RSC
property as measured in, or equivalent to, the in-ground volume in cubic metres.
The total mass of soil removed from the Site in association with the remedial excavation was approximately
1715 cubic metres (3430 tonnes). Approximately 345 cubic metres (690 tonnes) was excavated and
transported to Curran Recycling in Sarnia, Ontario and approximately 1370 cubic metres (2740 tonnes) was
excavated and transported to BFI Canada Ridge Landfill in Blenheim, Ontario.
ESA Information
Identify the estimated quantity of the soil, if any, being brought from another property to and deposited at the
RSC property, not including any soil that may have originated at but been remediated off the RSC property not
including any soil that may have been remediated off the property and brought back to the property as measured
in, or equivalent to, the in-ground volume in cubic metres.
The total mass of soil imported to the Site following remedial excavation was approximately 1900 cubic
metres (3800 tonnes) and included approximately 305 cubic metres (610 tonnes) of Granular A and
approximately 1595 cubic metres (3190 tonnes) of Granular B material. Material was sourced from Johnston
Brothers Bothwell Ltd. Sand and Gravel Pit in Cedar Springs, Ontario and from Southwestern Sales
Corporation in Sombra, Ontario.
Indicate if any soil, sediment or ground water at the RSC property that is or was located within 3 metres of the
RSC property boundary has been remediated or removed for the purpose of remediation.
Remedial (excavation and off-site disposal) of impacted soil extended beyond the southwest boundary of the
RSC property in the area of excavation EX-101.
Owner Information
Remedial Action & Mitigation
Ground Water Control or Treatment Measures
Identify and describe any ground water control or treatment measures that were required for the RSC property
prior to the certification date for the purpose of submitting the RSC for filing; or are or will be required for the
RSC property after the certification date.
Standards
Data
Details
Concern
Identify the estimated volume in litres of ground water, if any, removed from and not returned to the RSC property.
Accumulated excavation water was removed from the excavation during remediation activities and not
returned to the RSC property. A sample of the accumulated excavation water was collected and submitted
for chemical analysis for a suite of parameters to determine if the accumulated water could be pumped into
the nearby municipal sanitary sewer. The results of chemical analysis were sent to Chatham-Kent PUC and
were deemed suitable for temporary discharge into the municipal sanitary sewer during remediation activities.
ESA Information
Other Treatment Measures
Other than the activities identified in the in the Soil or Ground Water Control or Treatment Measures above,
identify any constructed works that, prior to the certification date for the purpose of submitting the RSC for filing,
were required to control or otherwise mitigate the release or movement of known existing contaminants at the
RSC property; or after the certification date, are required to control or otherwise mitigate the release or movement
of known existing contaminants at the RSC property.
Indicate whether there are any monitoring requirements or any requirements for care, maintenance or
replacement of any monitoring or control works for known existing contaminants, if any, on the RSC
property, after the certification date, and whether any monitoring requirements or requirements for care,
maintenance or replacement of any monitoring or control works are ground water management measures
or soil management measures.
Owner Information
Potential Environmental Concern
Area(s) of Potential Environmental Concern
Are there areas of potential environmental concern? *
Yes
Standards
Data
Details
Area(s) of Potential
Environmental Concern
Table of Current/Past Property
Use of Phase One Property
ESA Information
No
Click here for Area(s) of Potential Environmental Concern Form
Current and Past Property Use
Table of Current and Past Uses of the Phase One Property
Click here for Table of Current and Past Property Use Form
Owner Information
Contaminants Measured in SOIL
Contaminants Measured in
GROUND WATER
SEDIMENTS
ESA Information
General Information Related to Soil Media
Is there no soil on, in or under the property? *
(Note there is “no soil” if either there is no soil on, in or under the property OR the soil present is not sufficient
to investigate, sample and analyze in a manner which will meet the requirements and objectives
of a phase two environmental site assessment)
Yes
No
Owner Information
Measured Concentration for Contaminants in Soil
Measured
*
Concentration
Applicable
Standard
Unit Of
Measure
Contaminant 1-30 *
Type of Measurement *
Benzene
Minimum Detectable
0.020
0.32
µg/g
GROUND WATER
Toluene
Minimum Detectable
0.020
6.4
µg/g
Xylene Mixture
Minimum Detectable
0.040
26
µg/g
Petroleum Hydrocarbons F1****
Minimum Detectable
10
55
µg/g
Petroleum Hydrocarbons F2
Measured
22
230
µg/g
Measured
210
1700
µg/g
Measured
1500
3300
µg/g
Antimony
Measured
0.75
40
µg/g
Arsenic
Measured
12
18
µg/g
Barium
Measured
130
670
µg/g
Beryllium
Measured
0.42
8
µg/g
Boron (total)
Measured
5.4
120
µg/g
Cadmium
Measured
0.88
1.9
µg/g
Chromium Total
Measured
13
160
µg/g
Cobalt
Measured
7.5
80
µg/g
Copper
Measured
30
230
µg/g
Lead
Measured
83
120
µg/g
Molybdenum
Measured
7.0
40
µg/g
Nickel
Measured
22
270
µg/g
Selenium
Minimum Detectable
0.50
5.5
µg/g
Silver
Minimum Detectable
0.20
40
µg/g
Thallium
Measured
0.24
3.3
µg/g
Uranium
Measured
1.8
33
µg/g
Vanadium
Measured
20
86
µg/g
Zinc
Measured
77
340
µg/g
Acenaphthene
Minimum Detectable
0.0050
21
µg/g
Acenaphthylene
Minimum Detectable
0.0050
0.15
µg/g
Anthracene
Minimum Detectable
0.0050
0.67
µg/g
Benz[a]anthracene
Minimum Detectable
0.0050
0.96
µg/g
Benzo[a]pyrene
Minimum Detectable
0.0050
0.3
µg/g
SEDIMENTS
ESA Information
Total # of Contaminants 43
Owner Information
Measured Concentration for Contaminants in Soil
Measured
*
Concentration
Applicable
Standard
Unit Of
Measure
Contaminant 31-60 *
Benzo[b]fluoranthene
Minimum Detectable
0.0050
0.96
µg/g
GROUND WATER
Benzo[ghi]perylene
Minimum Detectable
0.0050
9.6
µg/g
Benzo[k]fluoranthene
Minimum Detectable
0.0050
0.96
µg/g
Chrysene
Measured
0.0069
9.6
µg/g
Dibenz[a h]anthracene
Minimum Detectable
0.0050
0.1
µg/g
Fluoranthene
Minimum Detectable
0.0050
9.6
µg/g
Fluorene
Minimum Detectable
0.0050
62
µg/g
Indeno[1 2 3-cd]pyrene
Minimum Detectable
0.0050
0.76
µg/g
Methlynaphthalene, 2-(1-) ***
Minimum Detectable
0.0050
30
µg/g
Naphthalene
Minimum Detectable
0.0050
9.6
µg/g
Phenanthrene
Minimum Detectable
0.0050
12
µg/g
Pyrene
Measured
0.0092
96
µg/g
Ethylbenzene
Minimum Detectable
0.02
1.1
µg/g
SEDIMENTS
ESA Information
Owner Information
Contaminants Measured in Ground Water
Measured Concentration for Contaminants in Ground Water
Contaminant 1-30 *
Benzene
Measured
GROUND WATER
Toluene
SEDIMENTS
ESA Information
Measured
*
Concentration
Applicable
Standard
Unit Of
Measure
3.7
5
µg/L
Minimum Detectable
0.20
24
µg/L
Ethylbenzene
Measured
0.46
2.4
µg/L
Xylene Mixture
Measured
0.43
300
µg/L
Petroleum Hydrocarbons F1****
Minimum Detectable
25
750
µg/L
Minimum Detectable
100
150
µg/L
Minimum Detectable
200
500
µg/L
Minimum Detectable
200
500
µg/L
Antimony
Measured
0.81
6
µg/L
Arsenic
Measured
12
25
µg/L
Barium
Measured
240
1000
µg/L
Beryllium
Minimum Detectable
0.50
4
µg/L
Boron (total)
Measured
110
5000
µg/L
Cadmium
Minimum Detectable
0.10
2.7
µg/L
Chromium Total
Minimum Detectable
5.0
50
µg/L
Chromium VI
Minimum Detectable
0.50
25
µg/L
Cobalt
Measured
2.0
3.8
µg/L
Copper
Minimum Detectable
1.0
87
µg/L
Lead
Minimum Detectable
0.50
10
µg/L
Mercury
Minimum Detectable
0.1
0.29
µg/L
Molybdenum
Measured
18
70
µg/L
Nickel
Measured
5.8
100
µg/L
Selenium
Minimum Detectable
2.0
10
µg/L
Silver
Minimum Detectable
0.10
1.5
µg/L
Thallium
Measured
0.056
2
µg/L
Uranium
Measured
4.6
20
µg/L
Vanadium
Measured
0.90
6.2
µg/L
Zinc
Minimum Detectable
5.0
1100
µg/L
Sodium
Measured
160000
490000
µg/L
Acenaphthene
Minimum Detectable
0.05
4.1
µg/L
Owner Information
Contaminants Measured in Ground Water
Measured Concentration for Contaminants in Ground Water
Measured
*
Concentration
Applicable
Standard
Unit Of
Measure
Contaminant 31-60 *
Acenaphthylene
Minimum Detectable
0.05
1
µg/L
GROUND WATER
Anthracene
Minimum Detectable
0.05
2.4
µg/L
Benz[a]anthracene
Minimum Detectable
0.05
1
µg/L
SEDIMENTS
Benzo[a]pyrene
Minimum Detectable
0.01
0.01
µg/L
Benzo[b]fluoranthene
Minimum Detectable
0.05
0.1
µg/L
Benzo[ghi]perylene
Minimum Detectable
0.05
0.2
µg/L
Benzo[k]fluoranthene
Minimum Detectable
0.05
0.1
µg/L
Chrysene
Minimum Detectable
0.05
0.1
µg/L
Dibenz[a h]anthracene
Minimum Detectable
0.05
0.2
µg/L
Fluoranthene
Minimum Detectable
0.05
0.41
µg/L
Fluorene
Minimum Detectable
0.05
120
µg/L
Indeno[1 2 3-cd]pyrene
Minimum Detectable
0.05
0.2
µg/L
Methlynaphthalene, 2-(1-) ***
Minimum Detectable
0.05
3.2
µg/L
Naphthalene
Minimum Detectable
0.05
11
µg/L
Phenanthrene
Minimum Detectable
0.03
1
µg/L
Pyrene
Minimum Detectable
0.05
4.1
µg/L
ESA Information
Owner Information
Contaminants Measured in Sediments
GROUND WATER
SEDIMENTS
ESA Information
Has sediment sampling been conducted at the property?
Yes
No
*
Owner Information
Laboratory Information
Laboratory Name *
Maxxam Analytics Inc.
GROUND WATER
SEDIMENTS
ESA Information
Owner Information
ESA Information
ESA Reports
Phase One ESA Reports
The date the last work on the records review, interviews and site reconnaissance
components of the phase one environmental site assessment was done.
ESA Information
Phase Two ESA Reports
Phase One Reports and Other
Documents
Phase Two Reports and Other
Documents
2013/01/14
Type of Report *
Phase One ESA
*
Report Title *
Date of Report * Author of Report *
Name of Consulting
Organization
Phase I Environmental
2013/01/14
Site Assessment,
Keith G.
625Lesarge,
St. Clair M.Sc.,
Street,
Golder
P.Geo.,
Chatham,
Associates
QPESA
Ontario
Ltd.& Derek Mu
Owner Information
ESA Information
ESA Reports
The date the last work on the planning of the site investigation and conducting the site
investigation components of the phase two environmental site assessment was done.
ESA Information
Documents
Documents
2013/09/05
Type of Report *
Phase Two ESA
*
Report Title *
Name of Consulting
Organization
Phase II Environmental
2013/10/31
Site Assessment,
Keith G.
625
Lesarge,
St. ClairM.Sc.,
Street,
Golder
P.Geo.,
Chatham,
Associates
QPESA
Ontario
Ltd.& Derek Mu
Owner Information
ESA Information
Reports and Other Documents
Phase 1 Reports and Other Documents
ESA Information
Documents
Documents
List the Reports/Documents other than the document(s) used as your Phase 1 ESA relied on in certifying
the information set out in Section 10 of Schedule A or otherwise used in conducting the Phase 1 ESA
Report Title
Date of Report
Author of Report
Name of Consulting
Organization for Report
Owner Information
ESA Information
Reports and Other Documents
Phase 2 Reports and Other Documents
List the Reports/Documents other than the document(s) used as your Phase 2 ESA relied on in making
any certifications in the RSC in relation to the Phase 2 ESA or otherwise used in conducting the Phase 2 ESA
ESA Information
Report Title *
Name of Consulting
Organization for Report
Summary of Excavation of Underground Fuel
2013/01/14
Storage TanksKeith
and Remediation
G. Lesarge, Activities,
M.Sc.,
Golder
P.Geo.,
Associates
625 St.
QPESA
Clair
Ltd.
Street,
& Derek
Chatham,
Mulligan,
Onta
Ho
Report on the Phase II Geo-Environmental2002/06/02
Site AssessmentM.King,
(GSA) for
B.Sc.(Hons)
the Property
C.T.
& Located
P.Janisse,
Soil & Materials
at 625
B.Sc.
St.Engineering
&Clair
T.O'Dwyer,
StreetInc.
(Pennysa
P.Eng
Documents
Documents
Owner Information
QP Information
First Name *
Middle Name
Last Name *
Keith
Lesarge
Which one of the following licences under
the Professional Engineers Act do you hold? *
ESA Information
QP Information
Which one of the following memberships under
the Professional Geoscientists Act do you hold? *
Practising Member
1649
Is the QP Employed? *
Yes
No
Membership Number *
Employer Name *
Golder Associates Ltd.
QP Contact Information
Phone Number *
Fax Number *
Email
(519) 652-0099
(519) 652-6299
[email protected]
*
QP Mailing Address Information
Street Number *
309
Street Name *
Apt No. / RR No.
Exeter Road
Unit 1
Province *
Postal Code *
London
Ontario
N6L 1C1
Owner Information
QP Certification Statement C
As the qualified person, I certify that: *
ESA Information
A phase one environmental site assessment of the RSC property, which includes the evaluation of the information
gathered from a records review, site reconnaissance, interviews, a report and any updates required, has
been conducted in accordance with the regulation by or under the supervision of a qualified person as
required by the regulation.
A phase two environmental site assessment of the RSC property, which includes the evaluation of the
information gathered from planning and conducting a site investigation, a report, and any updates required,
has been conducted in accordance with the regulation by or under the supervision of a qualified person as
required by the regulation.
The information represents the site conditions at the sampling points at the time of sampling only
and the conditions between and beyond the sampling points may vary.
As of 2013/09/05, in my opinion, based on the phase one environmental
site assessment and the phase two environmental site assessment, and any confirmatory sampling,
there is no evidence of any contaminants in the soil, ground water or sediment on, in or under
the RSC property that would interfere with the type of property use to which the RSC property
will be put, as specified in the RSC.
QP Certification Statement
Owner Certification Statement
Ground water sampling has been conducted in accordance with the regulation by or under the
supervision of a qualified person as required by the regulation.
As of 2013/09/05, in my opinion, based on the phase one and phase
two environmental site assessments and any confirmatory sampling, the RSC property meets the
applicable full depth generic site condition standards prescribed by section 36 of the regulation
for all contaminants prescribed by the regulation in relation to the type of property use for which
this RSC is filed, except for those contaminants (if any) specified in this RSC at Table 2,
Maximum Contaminant Concentrations Compared to Standards Specified in a Risk Assessment.
As of 2013/09/05, the maximum known concentration of each contaminant
in soil, sediment and ground water at the RSC property for which sampling and analysis has been
performed is specified in this RSC at Table 1, Maximum Contaminant Concentrations Compared to
Applicable Site Condition Standards.
I am a qualified person and have the qualifications required by section 5 of the regulation.
I have in place an insurance policy that satisfies the requirements of section 7 of the regulation.
I acknowledge that the RSC will be submitted for filing in the Environmental Site Registry, that records of site
condition that are filed in the Registry are available for examination by the public and that the Registry contains
a notice advising users of the Registry who have dealings with any property to consider conducting their own
due diligence with respect to the environmental condition of the property, in addition to reviewing information
in the Registry.
The opinions expressed in this RSC are engineering or scientific opinions made in accordance with generally
accepted principles and practices as recognized by members of the environmental engineering or science
profession or discipline practising at the same time and in the same or similar location.
I do not hold and have not held
a direct or indirect interest in the RSC property or any property
which includes the RSC property and was the subject of a phase one or two environmental site assessment
or risk assessment upon which this record of site condition is based
To the best of my knowledge, the certifications and statements in this part of the RSC are
true as of 2013/09/05.
By signing this RSC, I make no express or implied warranties or guarantees.
I, the qualified person named below, on the date stated below, make all of the stated certifications applicable to
the qualified person in this Part of the record of site condition.
Keith Lesarge
2014/02/04
Owner Information
ESA Information
QP Certification Statement
Click here to download Firm, Corp, Other Form
Owner Information
Please note, only PDF attachments will be accepted with the exception of the
Property Specific Standard, which must be an Excel document.
Certificate of Status or equivalent *
1111340138-3000 Certificate of Status (4feb14).pdf
Lawyer’s letter consisting of a legal description of the property *
ESA Information
1111340138-3000 Lawyer letter (5dec2013).pdf
Copy of any deed(s), transfer(s) or other document(s) *
1111340138-3000 Deed.pdf
A Current plan of Survey *
1111340138-3000 Plan of Survey 24R-9596.pdf
Area(s) of Potential Environmental Concern *
1111340138-3000 Table of APECs (4feb2014).pdf
Table of Current and Past Uses of the Phase One Property *
1111340138-3000 Table of current and past landuse(4feb2014).pdf
Phase 2 Conceptual Site Model *
1111340138-3000 Phase II CSM (4feb2014) .pdf
Owner Certification Statement *
1111340138-3000 Owner letter (4feb14).pdf
February 2014
11-1134-0138-3000-R01
Page 1 of 1
Phase II Environmental Site Assessment
Jemwins Contractant Inc.
625 St. Clair Street, Chatham, Ontario
"TABLE OF AREAS OF POTENTIAL ENVIRONMENTAL CONCERN"
(Refer to clause 16(2)(a), Schedule D, O.Reg. 153/04)
Area of Potential
Location of Area of Environmental
Environmental Concern 1 Concern on Phase One Property
APEC 1
Historical Operations former gasoline fill-up
station
APEC 2
Historical Operations former trailer park with
underground septic tanks
APEC 3
Imported fill material
APEC 4
Current Operations Oil storage
APEC 5
Recent Operations Impacted excavated
material
Potentially Contaminating Activity 2
Location of PCA
(on-site or offsite)
South-central portion of the Site,
#28. Gasoline and Associated Products
approximately 10 metres northeast of Storage in Fixed Tanks. Two inactive
On-Site
St. Clair Street
gasoline USTs and associated pump island
Northwest, central northeast and
central southeast Site boundary
Historical on-Site septic tanks and
associated plumbing related to former
trailer park
On-Site
Central portion of the Site in area of
former gravel lane
#30. Importation of Fill Material of Unknown
On-Site
Quality
#28. Gasoline and Associated Products
Adjacent to southeast Site boundary Storage in Fixed Tanks. Exterior waste oil
Off-Site
(615 St. Clair Street)
storage in an aboveground storage tank
and smaller plastic containers
Adjacent to previous excavation in
central and south-central portion of
the Site
PHC-impacted material temporarily stored
on the ground surface awaiting off-Site
disposal
On-Site
Contaminants of
Potential Concern 3
PHCs, BTEX and Metals
Media Potentially Impacted
(Groundwater, soil and/or
sediment)
Soil and Groundwater
PHCs, BTEX, Metals and
PAHs
Soil
PHCs, BTEX
Soil
Notes:
1 - Area of potential Environmental Concern means the area on, in or under a phase one property where one or more contaminans are potentially present,
as determined through the phase one environmental site assessment, including through:
(a) identification of past or present uses on, in or under the phase one property; and
(b) identification of potentially contaminating activity.
2 - Potentially Contaminating Activity means a use or activity set out in Column A of Table 2 of Schedule D that is occurring or has occurred in a
phase one study area.
3 - When completing this column identify all contaminants of potential environmental concern using the Method Groups as identified in the
"Protocol for the Assessment of Properties Under Part XV.1 of the Environmental Protection Act", March 9, 2004, amended as of July 1, 2011
4 - When submitting a Record of Site Condition for filing, a copy of this table must be attached.
February 2014
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Page 1 of 2
Phase II Environmental Site Assessment
625 St. Clair Street, Chatham, Ontario
"TABLE OF CURRENT AND PAST USES OF THE PHASE ONE PROPERTY"
(Refer to clause 16(2)(b), Schedule D, O.Reg. 153/04)
Year
Name of Owner
Description of Property Use
Property Use
Other Observations from Aerial Photographs, Fire Insurance Plans, Etc.
625 St. Clair Street - Part Lot 1, Concession 3, Municipality of Chatham-Kent
1899-1907
Residential Chain of Title information
James H. Paxton
Residential/Farmland
1907-1910
William Dunlop
1910-1913
Alber E. Bragg
1913-1937
Armelia E. Bragg
1937-1946
Matthew and Frances Kousal
1946-1949
Frank Lancia
1947 aerial photograph (1:15,000). What appeared to be a residential dwelling and two
1947
Assumed Frank Lancia
Residential
outbuildings/barns. The remainder of the Site appeared to be farmland.
1949-1951
Lloyd G. Sparks
1951-1953
Frank Sparks and Sons Ltd.
1952 aerial photograph (1:25,000). No dwelling apparent; however two
1952
Assumed Frank Sparks
Residential
outbuildings/barns remained.
Assumed combined gasoline station
1953-1972
Edna R. Morse
Commercial Chain of Title information
and trailer park
1954
Assumed Edna R. Morse
Gasoline station and adjacent
concrete block commercial building
(identified as 605 St. Clair Street)
Commercial
April 1954 FIP. Apparent gasoline station with two underground fuel storage tanks (in
same general location as most recent tanks). Adjacent building identified as a
commercial operation involving a garage and related office space.
1959
•Claude Morse Motors and Morse
Trailer Park
Gasoline station with an unknown
number of trailer sites northeast of
the commercial operation
Commercial
City Directories
1962
Gasoline station with an unknown
number of trailer sites northeast of
the commercial operation
Commercial
1962 aerial photograph (1:15,000). Commercial development with rectangular building
in southeast corner of the Site. Inferred gasoline station in southwest portion of the Site
with an associated trailer park along the remaining Site boundaries.
1965
•Claude Morse Motors and Morse
Trailer Park
Gasoline station with at least 8
individual trailer lots northeast of the Commercial
commercial operation
City Directories
Combined gasoline station and trailer
Commercial
park
Site plan of unkown date and source (made available from client files) indicating an onSite gasoline station and trailer park. The plan shows the location of three septic tanks
to be connected to the sanitary sewer via new underground piping with the septic tanks
to be subsequently removed.
unknown
(inferred approximate
Unknown
date due to available lots
for trailers)
1972-1980
Theresa M. Brooks
1975
Assumed Theresa M. Brooks
•Brooks Fuel and Gas
1976
Assumed Theresa M. Brooks
1980-1981
Tecumseh Ice and Fuel (1979) Ltd.
1981-1985
Gas and Co. Services Inc.
1985
Gas & Go, Mike's Auto Repair, Gas &
Go Trailer Park
and trailer park
individual trailer lots northeast of the
park
and trailer park
and trailer park
individual trailer lots northeast of the
Commercial
Chain of Title information
Commercial
City Directories
Commercial
1976 aerial photograph (1:50,000). Further development of trailer park with additional
spaces along the northwest, northeast and southwest Site boundaries.
Commercial
Commercial
Commercial
City Directories
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Page 2 of 2
"TABLE OF CURRENT AND PAST USES OF THE PHASE ONE PROPERTY" continued
Year
1985-1987
1987
1987-1988
1988-1994
1994-2000
1995
1995-1998
2000-2002
2002
2002-2005
2005
2005-2011
2006
2007
2011-Feb 15, 2013
Feb 15, 2013-present
Name of Owner
Description of Property Use
Property Use
Other Observations from Aerial Photographs, Fire Insurance Plans, Etc.
625 St. Clair Street - Part Lot 1, Concession 3, Municipality of Chatham-Kent
Comtrade Petroleum Incorporated
and trailer park
710505 Ontario Ltd.
and trailer park
JKS Syndicates Ltd.
and trailer park
765968 Ontario Ltd.
and trailer park
1055035 Ontario Ltd.
and trailer park
Assumed 1055035 Ontario Ltd.
•Pennysaver Fuel, Gas & Go Trailer
individual trailer lots northeast of the Commercial City Directories
Park
Commercial TSSA records
•Pennysaver Fuel
park
and trailer park
Commercial Previous Reports
•Pennysaver Fuels
park
and trailer park
•St. Clair Gas Station, Gas & Go Trailer individual trailer lots northeast of the Commercial City Directories
Park
and trailer park
Commercial TSSA
•St. Clair Gas Station
park
TSSA
Commercial
park
Inspection report identifying disuse of underground fuel storage tanks
Former gasoline station and trailer
park under construction for
commercial development involving a Commercial Parcel Register
future oil change operation and car
wash facility
Under construction for future
2313131 Ontario Inc.
automobile oil change operation and Commercial Parcel Register
associated car wash
Phase II Conceptual Site Model
1.0
PHYSICAL SETTING AND PROPERTY USE
The RSC Property, located at 625 St. Clair Street, as shown on Figure 1, consists of a parcel of land
approximately 0.70 hectares in area and includes a recently constructed building located in the southwest
portion of the Site fronting St. Clair Street from the east side. The building is currently under construction for
future commercial operations. The area immediately surrounding the recently constructed building and the
majority of the southeast portion of the Site is under construction, including grading activities for the adjoining
future parking lot. The remainder of the Site to the northeast is generally undeveloped. The Site is located
within an area developed primarily for residential and commercial use.
As indicated on Figure 3, the Site is occupied by one L-shaped building currently under construction and
comprising an area of approximately 450 square metres (m2) in the southwest portion of the Site. The future
development of the Site will include a vehicle oil change facility and adjoining car wash. The remainder of the
Site will reportedly be used as a self storage facility in the northeast portion and a commercial building in the
southeast portion. The Site was most recently used as a combined gasoline station and associated trailer park.
The gasoline station occupied the southwest quarter of the Site with access to St. Clair Street and incorporated
a kiosk and pump island with associated underground piping to two adjacent underground fuel storage tanks
(USTs). A former convenience store was located in the southeast corner of the Site, adjacent to the pump
island, and was characterized by an approximately 200 m2 rectangular, single storey slab-on-grade
construction. Based on the historical records review, a gasoline station was operational on the Site between
approximately 1954 and 2007. Operations associated with the former gasoline station reportedly ceased in
approximately 2007. The northeast portion of the Site was most recently used as a trailer park with individual
lots for at least 24 residents. Based on the historical records review, the trailer park was operational starting in
1959 and remained until at least 2005. Prior to commercial operations, land use on the Site was residential in
nature. As part of the current Site development, the former building and all associated fuel related equipment,
including the two USTs, were removed from the Site. No trailers associated with the former trailer park were
present prior to the current development.
Prior to current ownership and recent development, the Site was serviced with municipal water, sanitary
sewers, and storm sewers maintained by the Chatham-Kent Public Utilities Commission. Natural gas is
provided by Union Gas with service running along the north side of St. Clair Street. Electricity is provided by
Chatham-Kent Energy Inc. with overhead power lines located along the north side of St. Clair Street. Utility
services including electricity, natural gas and potable water previously entered the Site along its southeast
boundary from St. Clair Street, as indicated on Figure 3; however, these services were disconnected as part of
the construction and new underground services are currently being installed to service the Site.
Adjacent and nearby properties are serviced with municipal water, sanitary sewers, and storm sewers
maintained by the Chatham-Kent Public Utilities Commission. Based on the results of the previous Phase I ESA,
water wells were noted within approximately 250 metres (m) of the Site boundaries and were generally
described as overburden installations used for domestic purposes. Information gathered during the Phase I
ESA suggested the water wells were still active; however, the current status of the wells is unknown.
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1.1
Proposed Future Land Use
The proposed future land use within the boundaries of the Site is commercial in nature. The current phase of
development at the Site includes the construction of an approximately 450 m2 building in the southwest
portion of the Site for future use as a vehicle oil change facility (Pro-Oil Change) and adjoining car wash (ProTect Car Wash). The remainder of the Site will reportedly be developed with a commercial building (Phase 2) in
the southeast portion, comprising an approximately 480 m2 rectangular-shaped building, and two, narrow and
rectangular-shaped buildings (Phase 3), individually approximately 380 m2 in area, in the north portion to be
used as a future self storage facility.
1.2
Topography and Drainage
The topography of the Site is relatively flat with a very gentle slope towards St. Clair Street. The topography of
the Site is consistent with that of the land in the area and is at grade with respect to properties located in the
immediate vicinity (Figure 2). Measured ground surface elevations at the Site ranged from approximately
179.9 m above sea level (masl) along the northeast Site boundary to 179.4 masl along the southwest Site
boundary. No surface water features are located on the Site; the nearest watercourse identified on the
topographical mapping is a tributary of Dolson Creek, located approximately 430 m south of the Site. Dolson
Creek follows a meandering southwesterly course and eventually drains into Lake St. Clair, located
approximately 16 kilometres west of the Site. The Thames River is located approximately 2.7 kilometres south
of the Site and follows a similar southwesterly course draining to Lake St. Clair. Local and regional groundwater
is anticipated to mimic the topography and flow to the southwest. Local groundwater flow may also be
influenced by the presence of subsurface structures, utility trenches, and fill materials.
1.3
Environmentally Sensitive Areas (as per section 41 of O.Reg. 153/04)
The Site is not considered to be environmentally sensitive. No areas of natural significance, as defined by
Ontario Regulation (O.Reg.) 153, were identified on, or within 30 metres of, the Site. Two shallow soil
samples, identified as BH-108-1B and BH-109-1B, returned pH values of 7.26 and 7.69, respectively, and were
within the acceptable range of 5 to 9. The samples were collected at depths of 0.8 to 1.5 mbgs (BH-108-1B)
and 0.3 to 0.9 mbgs (BH-109-1B).
1.4
Shallow Soil Property or Water Body (as per section 43.1 of O.Reg. 153/04)
As per the Phase II ESA, the Site is not a shallow soil property. Overburden material encompasses the Site in its
entirety and is greater than 2 m in depth, excluding any asphalt, concrete or aggregate. The Site does not
include all or part of a water body, nor is it within 30 m of a water body.
1.5
Soil Brought to the Phase II ESA Property (as per Schedule E of O.Reg. 153/04)
During initial excavation activities associated with the removal of the two USTs and associated underground
piping and related equipment, carried out on September 12, 2011, petroleum hydrocarbon impacts were
identified in the surrounding native soil. The excavation of inferred petroleum hydrocarbon impacted fill and
native subsurface materials continued based on the results of confirmatory soil sampling and analysis. Where
the results of chemical analysis of confirmatory soil samples indicated exceedances of the applicable site
condition standards, further excavation was completed. Based on soil screening and receipt of chemical
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analysis, the excavation was extended vertically and laterally on the Site until all petroleum hydrocarbon
impacted soil was removed. As described in further detail below, a total of 235 soil samples collected from the
walls and floor of the excavation were field screened and a total of 40 confirmatory samples were collected
and submitted for chemical analysis of petroleum hydrocarbons (PHC F1 to F4) and benzene, toluene,
ethylbenzene and xylene (BTEX) the results of which were compared to the applicable site condition standards.
Some impacted soil remained along the west wall of the excavation; however, the limit of the west wall of the
excavation extended beyond the west property boundary of the Site. In this manner, remediation activities
resulted in an irregular-shaped excavation encompassing an area of approximately 44 m by 24 m with depths
ranging between 1.5 to 4.6 m below ground surface (mbgs) in the area of the former USTs and related
equipment.
Between 2011 and 2012, approximately 3,430 tonnes of impacted material was excavated for off-Site disposal
at a licensed landfill. In 2011, approximately 690 tonnes of non-hazardous impacted material was transported
to the Curran Recycling site located in Sarnia, Ontario; in 2012, approximately 2,740 tonnes of non-hazardous
impacted material was transported to BFI Canada Ridge Landfill in Blenheim, Ontario. The excavation was
subsequently backfilled with imported granular material (Granular A and Granular B material) sourced from the
Johnston Brothers Bothwell Ltd. Sand and Gravel pit located in Cedar Springs, Ontario and from Southwestern
Sales Corporation docks in Sombra, Ontario. Approximately 610 tonnes of Granular A material and 3,190
tonnes of Granular B material was used to backfill the excavation.
Prior to backfilling activities, a total of three representative composite samples of Granular B material were
collected from the source stockpile located at Johnson Brothers Bothwell Ltd. Sand and Gravel pit in Cedar
Springs, Ontario. Although no obvious sources of potentially contaminating activity were observed at the time
of sample collection, the three composite samples were collected and analyzed for metals, polycyclic aromatic
hydrocarbons (PAH), PHC F1 to F4 and BTEX. Based on the previous land use as a gasoline service station,
results of composite samples obtained of backfill material to be brought onto the Site were compared to the
applicable 2011 MOE Table 2 Standards, described in further detail in Section 3.1 below. The results of this
chemical analysis indicated no exceedances for parameters analyzed in reference to the applicable site
condition standards. As such, imported backfill material for the Site was sourced from the pit in Cedar Springs.
Since the volume of granular material needed to backfill the remedial excavation was less than 5,000 cubic
metres (m3), chemical analysis of backfill material imported to the Site was carried out at an approximate rate
of one sample for every 120 m3 of material brought to the Site in conformance with the requirements set out in
Schedule E of O.Reg 153/04, as amended. A total of 16 composite samples of backfill material, including the
initial 3 samples collected from the source pit in Cedar Springs and 13 samples collected during import, were
analyzed for metals. Metal concentrations measured in the analysed samples of imported backfill material
were below the applicable site condition standards in all samples with the exception of an arsenic
concentration in one sample of imported backfill material which was measured at a concentration of 24 µg/g,
slightly above the applicable site condition standard of 18 µg/g. This slight exceedance for arsenic in one
backfill sample was considered to be an anomaly and not representative of the quality of the imported backfill
material. Granular A material imported to the Site in 2011 was similarly tested prior to it being placed in the
excavation.
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2.0
GEOLOGY AND HYDROGEOLOGY
2.1
Geological Conditions
The subsurface conditions encountered in the on-Site boreholes advanced during the Phase II ESA are shown
on Figure 5 (Cross Sections). The locations of the boreholes and cross sections are identified on Figure 3. The
descriptions of the major soil types have been simplified in the following sections for the discussion pertaining
to environmental and hydrogeological conditions. It should be noted that the inferred boundaries between soil
types typically represent a transition and should not be interpreted to represent exact planes of geological
change. Furthermore, soil conditions may vary between and beyond the sampled locations.
Based on field observations during drilling, the stratigraphy at the Site was generally consistent throughout the
Site, excluding the area of the previous excavation in the southwest portion. Boreholes BH-101 through BH105 were advanced within the limits of the previous excavation in the area of the former underground fuel
tanks (Figure 3). In each borehole, backfill material was encountered to various depths below ground surface
and, with the exception of borehole BH-105, was underlain by native silt with trace sand and trace clay.
Boreholes BH-101 through BH-105 encountered brown, fine to medium grained sand with trace silt and trace
gravel (Granular B) from surface to depths ranging between 1.7 and 2.7 mbgs. With the exception of borehole
BH-105, silt with trace sand and trace clay was encountered beneath the backfill material to borehole
termination ranging between 3.7 and 4.6 mbgs. Granular B material was encountered in BH-105 from surface
to a depth of 2.7 mbgs and was underlain by coarse granular material (Granular A) to borehole termination (3.7
mbgs). The coarse Granular A material was placed in the deepest portion of the previous excavation.
Boreholes BH-106, BH-107 and BH-108 were advanced near the south, north and east perimeters of the Site,
respectively. Due to recent grading activities, a thin layer of topsoil was only encountered in the furthest east
borehole (BH-108) and measured approximately 8 centimetres in thickness. Each borehole encountered an
upper layer of inferred fill material generally consisting of brown, fine to medium grained sand with localized
traces of gravel, clay tile and brick material from ground surface to depths ranging between 0.8 and 1.1 mbgs.
Roots and rootlets were observed within the upper fill material. The fill material in each borehole was
generally underlain by native, orange-brown to grey, fine to medium grained sand with trace to some silt to
depths ranging between 1.9 and 3.1 mbgs. Similar silt with trace to some sand and trace clay was observed
beneath the sand in each borehole to borehole termination ranging between 3.7 and 4.6 mbgs. A 0.7-metre
layer of dark grey to greenish grey silty sand was encountered in borehole BH-108 between the overlying sandy
fill and underlying native sand at a depth interval of 0.8 to 1.5 mbgs.
Boreholes BH-109 through BH-112 were advanced to shallow depths in the central portion of the Site for the
characterization of shallow fill material associated with a former gravel access lane. A thin layer of upper fill
material was encountered in each borehole to depths ranging between about 0.3 and 0.6 mbgs. The fill
material generally consisted of dark brown to grey, medium to coarse grained sand and gravel with traces of
wood and concrete. With the exception of borehole BH-109, a thin layer of silt with trace to some sand and
trace clay was encountered beneath the fill material ranging between 0.3 and 1.5 mbgs. The silt material was
encountered in borehole BH-112 to borehole termination. Brown to grey, fine to medium grained sand with
trace silt was encountered beneath the fill material in BH-109 to borehole termination at a depth of 1.5 mbgs.
The sand was encountered beneath the silt in boreholes BH-110 and BH-111 to borehole termination at a
depth of 1.5 mbgs.
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Bedrock was not encountered in any of the boreholes advanced on the Site. Geological mapping indicated
shale bedrock is present at a depth of approximately 20 mbgs in the vicinity of the Site.
As part of the Phase II ESA, three soil samples (identified as BH-102-2B, BH-104-2B, and BH-106-3B) collected
during borehole drilling were submitted to Golder’s soil laboratory in London, Ontario for grain size distribution
analysis (sieve and hydrometer). Based on field observations during drilling, the samples were selected to
determine the predominant soil type on the Site. Based on field observations during borehole drilling and the
grain size analysis results, the majority of the overburden material at the Site was predominantly silt with trace
to some clay and trace sand. Pursuant to O.Reg. 153/04, the soil on the Site is therefore considered to be
medium and fine textured since less than 50% particles (by mass) in the soil were equal to or larger than 75 µm
in mean diameter.
2.2
Physical Hydrogeology
Boreholes BH-109 through BH-112 were advanced to a total depth of 1.5 mbgs and were targeted to assess the
surface and shallow fill material located on the Site. The boreholes were not drilled to a sufficient depth to
encounter the inferred shallow groundwater table. Based on observations during the advancement of
boreholes BH-106, BH-107 and BH-108 near the south, north and east perimeters of the Site, respectively,
shallow groundwater in the east portion of the Site was generally encountered within the native sand or at the
transition of upper sand and lower silt. Boreholes advanced in the west portion of the Site, in the area of the
previous excavation, generally encountered groundwater within the native silt beneath the backfill material.
Groundwater was encountered within the granular backfill of the previous excavation in one of the boreholes
advanced in the area (BH-105).
Based on the encountered subsurface conditions, the shallow native soil at the site consists of relatively
uniform deposits of silt or fine sand. Where saturated, these deposits act as an unconfined aquifer. The
vertical extent of the fine granular deposits are unknown, but are inferred to extend to a depth of at least 4.6
mbgs (the termination depth of boreholes BH-101 and BH-106). Coarse grained fill material is present within
the limits of the previous remedial excavation in the area of the former underground fuel storage tanks.
Where the fill material extends below the shallow groundwater table, it will act as a preferential groundwater
flow pathway. Preferential groundwater flow pathways likely also exist along the backfill for the underground
utility services present on the Site.
Additional details of the soil conditions are shown on Figure 5.
2.2.1
Groundwater Levels and Flow Directions
The depths to groundwater were estimated based on field observations during drilling and measured during
subsequent monitoring well development and groundwater sampling. The depths to groundwater were
converted to elevations using the survey data. During borehole drilling on June 11, 2013, groundwater was
encountered at depths ranging between approximately 0.9 and 2.4 mbgs, corresponding to elevations ranging
between approximately 177.2 and 178.6 masl. Static groundwater levels measured on June 20, 2013 in the
monitoring wells located in the southwest portion of the Site ranged between approximately 0.8 and 1.6 mbgs,
corresponding to elevations ranging between approximately 177.9 and 179.0 masl. As shown on Figure 4, the
groundwater level contours inferred from the June 20, 2013 water level measurements indicate that the
groundwater flow direction at the Site is towards the west or southwest. The shallow groundwater flow
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characteristics on the Site and in the vicinity of the Site may also be influenced locally by features such as
building foundations, buried utilities (including sewers and/or septic systems), local drainage features, and local
soil properties or fill materials which potentially provide preferential flow pathways at the Site. Groundwater
elevations are presented on Figure 4. Regional groundwater flow is inferred to generally mimic the local
topography and flow direction of nearby surface water features (Dolston Creek) and flow in a similar
southwesterly direction.
During development, purging and sampling of the monitoring wells, no visual (sheen) or olfactory evidence of
residual petroleum hydrocarbon impacts was observed on the purged water from monitoring wells MW-101A
through MW-106. No free-phase product was measured or observed during the investigation activities.
2.2.2
Hydraulic Conductivity and Groundwater Velocity
The hydraulic conductivity (K) of the silt deposits in the vicinity of the Site was estimated from the grain size
distribution curves for representative samples from the boreholes drilled on the Site using the Hazen
approximation:
K  Cd 102
Where:
C
=
d 10
=
(in Freeze and Cherry, 1979)1
empirical constant (for K in centimeters per second (cm/s) and d in millimeters (mm),
C is equal to 1.0); and
effective grain size at which 10 per cent by weight of the soil particles are finer.
Using the Hazen approximation and the grain size distribution curves, the hydraulic conductivity of the silt
deposits encountered in boreholes BH-102, BH-104 and BH-106 is estimated to range between approximately
4x10-9 and 1x10-6 metres per second (m/s) and is considered representative of the silt deposits on the Site.
These values are consistent with the range of values reported by Freeze and Cherry (1979) for silt deposits.
Based on the groundwater elevation contours for June 20, 2013 (Figure 4), the horizontal hydraulic gradient
was estimated to be approximately 0.026. Assuming a porosity of 0.3, and using the hydraulic gradient and
conductivity values estimated above, the horizontal groundwater velocity is estimated to be less than 3 m per
year. This relatively low groundwater velocity is a function of the low hydraulic conductivity and horizontal
gradient within the shallow aquifer at the Site. The groundwater velocity may be greater in the coarse grained
fill material present at the Site.
1
Freeze, R. Allan, Cherry, John A. (1979) Groundwater. Prentice-Hall Inc.
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3.0
SUMMARY OF ON-SITE CONTAMINATION
3.1
Applicable Standards
The analytical results of soil and groundwater samples collected for the Phase II ESA were compared to the
generic site condition standards in the MOE’s “Soil, Ground Water and Sediment Standards for Use under Part
XV.1 of the Environmental Protection Act”, dated April 15, 2011. The standards considered appropriate for the
Site are the 2011 MOE Table 2 Full Depth Generic Site Condition Standards in a Potable Ground Water
Condition (Industrial/Commercial/Community Property Use for coarse textured soils) (“2011 MOE Table 2
standards”). As noted above (Section 1.0, Physical Setting and Property Use), although a piped potable water
supply previously serviced the Site, due to the background information indicating potable water wells located
within 250 metres of the Site boundaries, the potable groundwater condition standards were used for
comparison purposes. Information gathered during the Phase I ESA suggested the water wells were still active;
however, the current status of the wells is unknown.
3.2
Areas of Potential Environmental Concern (APECs) Identified in the Phase I
ESA and the Results of the Phase II ESA
Golder conducted a Phase I ESA to assess the potential for soil and/or groundwater contamination resulting
from historical or current activities at the Site or in the surrounding area. This included a review of available
historical information for the Site and surrounding area and a site reconnaissance. Between September 2011
and December 2012, remediation activities associated with petroleum hydrocarbon impacted soil was
completed in the area of the former gasoline station and involved: the removal of two USTs and related fuel
dispensing equipment; the excavation of inferred petroleum hydrocarbon impacted fill material and native soil;
and, the backfilling of the excavation with clean imported granular material. Excavation activities continued
following the removal of the USTs in September 2011 due to identified impacts to surrounding subsurface fill
material and native soil. As described above, all petroleum hydrocarbon impacted subsurface materials were
removed from the Site for proper off-Site disposal. Monitoring wells were installed during the Phase II ESA in
the area of the previous excavation to assess any residual petroleum hydrocarbon impacts to groundwater in
the area.
The findings of the Phase I ESA identifying APECs are described in the following paragraphs and summarized in
Table 1, Summary of Phase I ESA, below. Based on the APECs identified in the Phase I ESA, contaminants of
potential concern included: petroleum hydrocarbons (PHCs), benzene, toluene, ethylbenzene and xylene
(BTEX), metals and polycyclic aromatic hydrocarbons (PAHs). The results of the Phase II ESA addressing APECs
identified in the Phase I ESA and subsequent remediation activities are described in the following paragraphs
and summarized in Table 2, Summary of Phase II ESA, below. Based on the results of the Phase II ESA, no
exceedances of the 2011 MOE Table 2 Standards in soil and/or groundwater were identified and no further
investigations are required.
APEC (1): Based on the results of the Phase I ESA historical background review including: Land Title
information; city directories; aerial photographs; fire insurance plans; and, previous reports, a gasoline station
involving two USTs was operational on the Site as early as 1954 and remained active until sometime between
2006 and 2007. The operation was located in the southwest portion of the Site with access to St. Clair Street.
In 2011, the USTs and associated equipment were removed from the Site at which time petroleum
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hydrocarbon impacts were identified in the surrounding subsurface materials. The area was excavated of
impacted material between 2011 and 2012 and included the removal of the former convenience store located
adjacent to the fuel dispensing equipment. As described above, prior to Phase II ESA activities carried out in
2013, remedial activities associated with the excavation and removal of PHC-impacted soil in the area of APEC
1 were carried out in 2011 and 2012. As shown on Figure 6 and Figure 7, the remedial activities resulted in an
irregular-shaped excavation (EX-101) encompassing an area of approximately 44 metres by 24 metres with
depths ranging between 1.5 to 4.6 metres below ground surface in the area of the former USTs and related
equipment. During remedial activities, a total of 235 soil samples collected from the walls and floor of the
excavation were field screened and a total of 40 confirmatory samples were collected and submitted for
chemical analysis of PHC F1 to F4 and BTEX, the results of which were compared to the applicable site
condition standards. Where the results of field screening and chemical analysis of confirmatory soil samples
indicated exceedances, or potential exceedances (field screening), of the applicable site condition standards,
further excavation was completed. Based on the results of soil screening and the receipt of chemical analysis,
the excavation was extended vertically and laterally on the Site until all PHC-impacted soil was removed
(approximately 3,430 tonnes) and transported off-site for disposal at a licensed landfill. The historical gasoline
station continued to be considered an APEC since, although impacts to soil were removed, potential residual
impacts to shallow groundwater had not been evaluated. Monitoring wells were installed as part of the Phase
II ESA throughout the area of the historical gasoline station to assess potential impacts to shallow groundwater.
As such, samples of fill material and underlying native material collected from boreholes advanced in the area
of APEC 1 (BH-101/BH-101A to BH-105) during the Phase II ESA were not chemically tested. The boreholes
were advanced throughout the area for the sole purpose of groundwater monitoring well installation. The
results of chemical analysis of groundwater samples collected from monitoring wells MW-101A to MW-105
returned concentrations of PHC F1 to F4 below the respective analytical reportable detection limit for all
groundwater samples. Concentrations of BTEX from groundwater samples collected from MW-101A to MW105 were generally below the respective analytical detection limit or at concentrations below the applicable
site condition standards for each parameter.
Following the completion of the Phase II ESA field activities, receipt of chemical analysis of representative soil
and groundwater samples collected and submitted from boreholes and monitoring wells on the Site returned
concentrations of parameters analyzed that met the corresponding applicable site condition standard. As such,
no contaminants were identified on, in or under the phase two property during the Phase II ESA investigation
at concentrations greater than the applicable site condition standard within the areas previously identified as
APECs. The attached Figure 5 does not display the lateral and vertical distribution of any contaminants in soil
or groundwater as none were identified at concentrations greater than the applicable site condition standards.
Figure 6, Sample Location Plan of Excavation EX-101 and Figure 7, Cross-Sections for EX-101, demonstrate the
configuration of the remedial excavation and the distribution of the confirmatory samples. Based on the results
of soil screening and the receipt of chemical analysis, all PHC-impacted soil was removed during remedial
activities at the Site.
APEC (2): Based on the results of the Phase I ESA historical background review, the remaining portion of the
Site, northeast of the commercial operation, was historically used as a trailer park. The trailer park was present
as early as 1959 with an unknown number of individual lots. At least eight occupants were present in 1965 and
as many as 24 occupants were present by 1975. A site plan of unknown date and origin was provided by the
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client for review as part of the Phase I ESA. The plan identified the gasoline station and at least 18 individual
lots and was inferred to have been illustrated in the late 1960s to early 1970s. The plan identified the
construction of proposed sanitary sewer lines and the removal of three existing septic tanks located along the
northwest, northeast and southeast Site boundaries. It was uncertain if the proposed work had been carried
out. The status of the septic tanks was unknown and considered an APEC due to possible shallow soil and
groundwater impacts due to the potential for spills and releases associated with the operation of the historical
tanks and related plumbing.
The results of chemical analysis of representative soil and groundwater samples collected during the Phase II
ESA from boreholes BH-106, BH-107 and BH-108 and monitoring well MW-106 advanced adjacent to the
inferred location of each historical septic tank, returned concentrations of parameters analyzed that met the
corresponding applicable site condition standard. As such, no contaminants were identified on, in or under the
phase two property during the Phase II ESA investigation at concentrations greater than the applicable site
condition standard within the area previously identified as APEC 2.
APEC (3): Based on the results of the Phase I ESA historical background review, an unknown amount of
imported fill material was located on the Site for the installation of the USTs and related equipment and for the
gravel access lane servicing the former trailer park. Due to potential impacts to shallow soil due to the
unknown quality of the fill material brought to the Site during previous development, imported fill material was
identified as an APEC at the Site.
As described above, imported fill material associated with the historical emplacement of the former on-site
USTs and related equipment was excavated during remediation activities carried out at the Site in 2011 and
2012. The quality of the remaining imported fill material associated with the gravel access lane servicing the
former trailer park was investigated with the advancement of boreholes BH-109, BH-110, BH-111 and BH-112
at representative locations during the completion of the Phase II ESA. The results of chemical analysis of
representative samples of imported fill material collected from boreholes BH-109 to BH-112 returned
concentrations of parameters analyzed that met the corresponding applicable site condition standard. As such,
no contaminants were identified on, in or under the phase two property during the Phase II ESA investigation
at concentrations greater than the applicable site condition standard within the area previously identified as
APEC 3.
APEC (4): Based on the results of the Phase I ESA site reconnaissance, used oil was being stored on the
adjacent property at 615 St. Clair Street, along the southeast Site boundary. The occupant of the property was
Bob’s Motor Sport with operations involving the sale and repair of motorcycles and all-terrain vehicles. The
used oil storage area included an approximately 800-litre aboveground storage tank and approximately eight
20-litre plastic containers for the storage of used oil. Minor staining was observed on the underlying concrete
pad. Due to the proximity to the Site and the inherent potential for spills and releases associated with the
storage of waste oil in the above-noted containers, current operations involving the storage of waste oil at 615
St. Clair Street was identified as APEC at the Site.
The results of chemical analysis of representative soil and groundwater samples collected during the Phase II
ESA from borehole/monitoring well BH/MW-106 returned concentrations of parameters analyzed that met the
corresponding applicable site condition standard. As such, no contaminants were identified on, in or under the
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phase two property during the Phase II ESA investigation at concentrations greater than the applicable site
condition standard within the area previously identified as APEC 4.
APEC (5): During remediation activities carried out at the Site between 2011 and 2012, petroleum
hydrocarbon impacted fill material and native soil generated during the excavation was temporarily stockpiled
on the Site for future off-Site disposal. The material was located adjacent to excavation in central and southcentral portion of the Site. The material was placed on a polyethylene liner to reduce the potential for
additional contamination of surrounding surfaces; however, it remained on the Site for an extended period of
time resulting in the storage area being identified as an APEC at the Site.
At the time of the Phase II ESA activities, the stockpile of PHC-impacted material had been removed from the
Site. To address APEC 5, a total of three boreholes (BH-109, BH-110 and BH-111) were advanced in the area of
the former stockpile with shallow (0.0 to 0.4 metres below ground surface) samples of fill and native material
submitted for chemical analysis of PHC F1 to F4 and BTEX. The results of chemical analysis returned
concentrations of PHC F1 to F4 and BTEX that were below the applicable site condition standards such that no
residual PHC-related impacts were deemed to be present on the Site resulting from the temporary storage of
excavated PHC-impacted material. As such, no contaminants were identified on, in or under the phase two
property during the Phase II ESA investigation at concentrations greater than the applicable site condition
standard within the area previously identified as APEC 5.
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A summary of the findings of the Phase I ESA is provided in the following table.
Table 1: Summary of Phase I ESA
Potentially
APEC
Contaminating
Activity
Subject Property
#281. Gasoline and
Associated Products
Storage in Fixed
Historical Site
1
Tanks. Two inactive
Operations
gasoline USTs and
associated pump
island.
Historical on-Site
septic tanks and
Historical Site
2
associated plumbing
Operations
related to former
trailer park.
Description of Location
Contaminants
of Potential
Concern
Media
Potentially
Impacted
South-central portion of the
Site, approximately 10
metres northeast of St. Clair
Street.
PHCs, BTEX and
Metals
Soil and
groundwater
Northwest corner, central
northeast and central
southeast Site boundary.
PHCs, BTEX,
Metals and
PAHs
Soil and
groundwater
#301. Importation of
Fill Material of
Unknown Quality.
Southwest portion of the
Site beneath asphalt in area
of USTs and related
equipment. Central portion
of the Site in area of former
gravel lane servicing the
historical trailer park.
PHCs, BTEX
and Metals
Soil
#281. Gasoline and
Associated Products
Storage in Fixed
Tanks. Identified
waste oil storage in an
aboveground storage
tank. Waste oil
storage in smaller
plastic containers.
MN 615 St. Clair Street,
adjacent to southeast Site
boundary, approximately 40
metres northeast of St. Clair
Street.
PHCs, BTEX and
Metals
Soil and
groundwater
PHC-impacted
material stored on
ground surface
awaiting off-Site
disposal.
Adjacent to excavation in
central and south-central
portion of the Site
PHCs, BTEX
Soil
3
Imported Fill
Material
Adjacent Property
4
Adjacent
Operations –
Chemical Storage
Subject Property
5
Temporary
Storage Area for
Excavated
Material
1
Number corresponds to the Potentially Contaminating Activities listed in Table 2 of Schedule D, O.Reg. 153/04.
February 2014
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A summary of the findings of the Phase II ESA is provided in the following table.
Table 2: Summary of Phase II ESA
APEC Identified
during the
Phase I ESA
1
Former
gasoline
station
2
Former trailer
park with
underground
septic tanks
Exceedances
of 2011 MOE
Table 2
Standards in
Soil and/or
Groundwater
Conclusions and
Recommendations
BH/MW-101, MW-101A
BH/MW-102
BH/MW-103
BH/MW-104
BH/MW-105
Field screening results of 235 soil samples1
Analytical results of 40 confirmatory soil samples1
Analytical results of 16 imported fill samples1
None
No further
investigation
required
BH/MW-106
BH-107
BH-108
None
No further
investigation
required
None
No further
investigation
require
Boreholes/Monitoring Wells to Address
APEC as part of Phase II ESA
3
Imported fill
material
BH-109
BH-110
BH-111
BH-112
4
Waste oil
storage on
adjacent
property to
the southeast
BH/MW-106
None
No further
investigation
required
5
Temporary
storage of
impacted
excavated
material
BH-109
BH-110
BH-111
None
No further
investigation
required
1
Results of remedial excavation provided in Golder Report No. 11-1134-0138-2000-R02, referenced below.
February 2014
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References
Golder (Golder Associates Ltd.). 2013. Phase I Environmental Site Assessment, 625 St. Clair Street, Chatham,
Ontario. January 2013. Golder Report No. 11-1134-0138-R01.
Golder (Golder Associates Ltd.). 2013. Summary of Excavation of Underground Fuel Storage Tanks and
Remediation Activities, 625 St. Clair Street, Chatham, Ontario. Revised October 2013. Golder Report No. 111134-0138-2000-R02.
Golder (Golder Associates Ltd.). 2013. Phase II Environmental Site Assessment, 625 St. Clair Street, Chatham,
Ontario. October 2013. Golder Report No. 11-1134-0138-3000-R01.
n:\active\2011\1134-env\1134-0100\11-1134-0138 jemwin - ph i st clair - chatham\ph 3000-ph ii esa\rpts\rsc submission\2nd submission\1111340138-3000 phase ii csm (20feb2014)revkgl .docx
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Record of Site Condition # 212289 Record of Site

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