Record of Site Condition # 214487 Record of Site Condition Under ...

Ontario Ministry of the Environment - Record of Site Condition # 214487

Record of Site Condition

Under Part XV.1 of the Environment Protection Act

Summary

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.

Record of Site Condition Number 214487Date Filed to Environmental Site Registry 2014/09/16Certification Date 2014/06/30Current Property Use IndustrialIntended Property Use ResidentialCertificate of Property Use Number No CPUApplicable Site Condition Standards** Full Depth Generic Site Conditions Standard,

with Non-potable Ground Water, for Residentialproperty use

Property Municipal Address 6380 16TH AVENUE, MARKHAM, ON, L3R0P8

1 of 19Filed Record of Site Condition # 214487 on 2014/09/16

PART 1: PROPERTY OWNERSHIP, PROPERTY INFORMATION AND OWNER'S CERTIFICATIONS

Information about the owner who is submitting or authorizing the submission of the RSC

Owner Name AMICA (SWAN LAKE) CORPORATION

Authorized Person NIALL HAGGART

Mailing Address 4576 YONGE STREET, TORONTOONTARIO, CANADA

Postal Code M2N 6N4

Phone (416) 591-2950

Fax

Email Address


RSC Property Location Information

Municipal Address(es) 6380 16TH AVENUE, MARKHAM, ON L3R 0P8

Municipality Markham

Legal Description See Attached Lawyer’s Letter

Assessment Roll Number(s)

36030231647000000009

Property Identifier Number(s)

03061-0114 (LT)

RSC Property Geographical References

Coordinate System UTM

Datum NAD 83

Zone 17

Easting 640,458.46

Northing 4,861,759.37

RSC Property Use Information

The following types of property uses are defined by the Regulation: Agricultural or other use, Commercial use, Community use, Industrial use, Institutional use, Parkland use, and Residential use.

Current Property Use Industrial

Intended Property Use Residential

Certificate of Property Use has been issued under section 168.6 of the EPA

No


Please See the Signed Statements of Property Owner, or Agent, or Receiver at the End of this RSC

The rest of this page has been left intentionally blank


PART 2: LIST OF REPORTS, SUMMARY OF SITE CONDITIONS AND QUALIFIED PERSON’S STATEMENTS AND CERTIFICATIONSQualified Person's Information

Name CARLA REYNOLDS

Type of Membership Under the Professional Geoscientists Act

Limited Member

Membership Number 1835

QP Employer Name EXP SERVICES INC.

Mailing Address 500, 220 COMMERCE VALLEY DRIVE WEST, MARKHAMONTARIO, L3T 0A8 CANADA

Phone (905) 695-3217

Fax (905) 695-0169

Email Address [email protected]

Municipal Information

Local or Single-Tier Municipality

Markham

Upper-Tier Municipality York

Ministry of the Environment District Office

District Office York-Durham District Office

District Office Address 230 Westney Rd. S., 5th floor, Ajax ON L1S 7J5


Phase One Environmental Site Assessment ReportDocument used as the phase one environmental site assessment report and updates in submitting the RSC for filing

The date the last work on all of the records review, interviews and site reconnaissance components of the phase one environmental site assessment was done (refer to clause 28(1)(a) of O. Reg. 153/04)

(YYYY/MM/DD)

2013/07/10

Type of Report

Report Title Date of Report (YYYY/MM/DD)

Author of Report

Name of ConsultingCompany

P1 ESA Phase One Environmental Assessment, 6380 16th Avenue, Markham, Ontario

2013/08/10 Carla Reynolds, P.Ag., P.Biol., P.Geo.(Limited), QPESA

EXP SERVICES INC.

Reports and Other Documents Related to the Phase One Environmental Site AssessmentReports and other documents relied upon in certifying the information set out in section 10 of Schedule A or otherwise used in conducting the phase one environmental site assessment


Author of Report


N/A


Phase Two Environmental Site Assessment ReportDocument used as the phase two environmental site assessment report and updates in submitting the RSC for filing

The date the last work on all of the planning of the site investigation and conducting the site investigation components of the phase two environmental site assessment was done (refer to clause 33.5(1)(a) of O. Reg. 153/04)

(YYYY/MM/DD)

2014/07/02

Type of Report


Author of Report


P2 ESA Phase Two Environmental Assessment, 6380 16th Avenue, Markham, Ontario


EXP SERVICES INC.

P2 ESA Update

Phase Two Environmental Site Assessment Update, 6380 16th Avenue, Markham, Ontario


EXP SERVICES INC.

Reports and Other Documents Related to the Phase Two Environmental Site AssessmentReports and other documents relied upon in making any certifications in the RSC for the purposes of Part IV of Schedule A or otherwise used in conducting the phase two environmental site assessment

Report Title Date of Report (YYYY/MM/DD).

Author of Report


N/A


Environmental ConditionSection 41 applies? No

Section 43.1 applies? Yes

Site Condition InformationCertification date (YYYY/MM/DD) 2014/06/30

Total area of RSC property (in hectares) 0.75000

Number of any previously filed RSC that applies to any part of the RSC property

Number of any previously filed Transition Notice that applies to any part of the RSC property

Soil Texture

Assessment/Restoration Approach Full Depth Generic

Site investigation includes the investigation, sampling and analysis of ground water? Yes

Is there soil present that is sufficient to investigate, sample and analyze soil on, in or under the property in accordance with s. 6, Schedule E of O.Reg. 153/04?

Yes

Site investigation includes the investigation, sampling and analysis of soil on, in or under the property which is used in the RSC?

Yes

Name of the laboratory used to analyze any samples collected of soil, ground water or sediment

AGAT LABORATORIES

Ground water condition (potable, non-potable) Non-potable

Applicable Site Condition Standard TABLE 9

Local or single-tier municipality non-potable written notification date 2014/06/16

Upper-tier municipality non-potable written notification date 2014/07/04


Table 1 – Maximum Contaminant Concentrations Compared to Applicable Site Condition Standards

Measured Concentration for Contaminants in Soil

ContaminantName

Maximum Concentration

Applicable Site Condition Standard

Unit of Measure

1 Benzene < 0.02 0.02 µg/g

2 Toluene < 0.08 0.2 µg/g

3 Ethylbenzene < 0.05 0.05 µg/g

4 Xylene Mixture < 0.05 0.05 µg/g

5 Petroleum Hydrocarbons F1**** < 5 25 µg/g

6 Petroleum Hydrocarbons F2 < 10 10 µg/g

7 Petroleum Hydrocarbons F3 100 240 µg/g

8 Petroleum Hydrocarbons F4 92 120 µg/g

9 Methlynaphthalene, 2-(1-) *** 0.05 0.59 µg/g

10 Acenaphthene 0.05 0.072 µg/g

11 Acenaphthylene < 0.05 0.093 µg/g

12 Anthracene 0.22 0.22 µg/g

13 Benz[a]anthracene 0.31 0.36 µg/g

14 Benzo[a]pyrene 0.17 0.3 µg/g

15 Benzo[b]fluoranthene 0.28 0.47 µg/g

16 Benzo[ghi]perylene 0.13 0.68 µg/g

17 Benzo[k]fluoranthene 0.11 0.48 µg/g

18 Chrysene 0.21 2.8 µg/g

19 Dibenz[a h]anthracene < 0.05 0.1 µg/g

20 Fluoranthene 0.68 0.69 µg/g

21 Indeno[1 2 3-cd]pyrene 0.1 0.23 µg/g

22 Naphthalene 0.08 0.09 µg/g

23 Phenanthrene 0.51 0.69 µg/g

24 Pyrene 0.53 1 µg/g

25 Antimony < 0.08 1.3 µg/g

26 Arsenic 2 18 µg/g

27 Barium 73 220 µg/g

28 Beryllium < 0.5 2.5 µg/g

29 Boron (total) 6 36 µg/g

30 Boron (Hot Water Soluble)* 0.4 1.5 µg/g

31 Cadmium < 0.5 1.2 µg/g

32 Chromium Total 16 70 µg/g

33 Cobalt 5.9 22 µg/g

34 Copper 14 92 µg/g

35 Lead 14 120 µg/g

36 Molybdenum < 0.5 2 µg/g

37 Nickel 17 82 µg/g

38 Selenium < 0.4 1.5 µg/g

39 Silver < 0.2 0.5 µg/g


39 Silver < 0.2 0.5 µg/g

40 Thallium < 0.4 1 µg/g

41 Uranium 0.6 2.5 µg/g

42 Vanadium 26 86 µg/g

43 Zinc 39 290 µg/g

44 Chromium VI < 0.2 0.66 µg/g

45 Cyanide (CN-) < 0.04 0.051 µg/g

46 Mercury < 0.1 0.27 µg/g

47 Electrical Conductivity 0.35 0.7 mS/cm

48 Sodium Adsorption Ratio 2.53 5

49 Fluorene < 0.05 0.19 µg/g

50 Tetrachloroethane, 1,1,1,2- < 0.04 0.05 µg/g

51 Trichloroethane, 1,1,1- < 0.05 0.05 µg/g

52 Tetrachloroethane, 1,1,2,2- < 0.05 0.05 µg/g

53 Trichloroethane, 1,1,2- < 0.04 0.05 µg/g

54 Dichloroethane, 1,1- < 0.02 0.05 µg/g

55 Dichloroethylene, 1,1- < 0.05 0.05 µg/g

56 Dichlorobenzene, 1,2- < 0.05 0.05 µg/g

57 Dichloroethane, 1,2- < 0.03 0.05 µg/g

58 Dichloropropane, 1,2- < 0.03 0.05 µg/g


60 Dichloropropene,1,3- < 0.04 0.05 µg/g


62 Acetone < 0.5 0.5 µg/g

63 Bromodichloromethane < 0.05 0.05 µg/g

64 Bromoform < 0.05 0.05 µg/g

65 Bromomethane < 0.05 0.05 µg/g

66 Carbon Tetrachloride < 0.05 0.05 µg/g

67 Chlorobenzene < 0.05 0.05 µg/g

68 Chloroform < 0.04 0.05 µg/g

69 Dichloroethylene, 1,2-cis- < 0.02 0.05 µg/g

70 Dibromochloromethane < 0.05 0.05 µg/g

71 Dichlorodifluoromethane < 0.05 0.05 µg/g

72 Ethylene dibromide < 0.04 0.05 µg/g

73 Methyl Ethyl Ketone < 0.5 0.5 µg/g

74 Methyl Isobutyl Ketone < 0.5 0.5 µg/g

75 Methyl tert-Butyl Ether (MTBE) < 0.05 0.05 µg/g

76 Methylene Chloride < 0.05 0.05 µg/g

77 Hexane (n) < 0.05 0.05 µg/g

78 Styrene < 0.05 0.05 µg/g

79 Tetrachloroethylene < 0.05 0.05 µg/g

80 Dichloroethylene, 1,2-trans- < 0.05 0.05 µg/g

81 Trichloroethylene < 0.03 0.05 µg/g

82 Trichlorofluoromethane < 0.05 0.25 µg/g


82 Trichlorofluoromethane < 0.05 0.25 µg/g

83 Vinyl Chloride < 0.02 0.02 µg/g


Table 1 – Maximum Contaminant Concentrations Compared to Applicable Site Condition Standards (Continued)

Ground Water

ContaminantName

Maximum Concentration

Applicable Site Condition Standard

Unit of Measure

1 Benzene < 0.8 44 µg/L

2 Ethylbenzene 0.87 1800 µg/L

3 Xylene Mixture 4.1 3300 µg/L

4 Petroleum Hydrocarbons F1**** 26 420 µg/L

5 Petroleum Hydrocarbons F2 < 100 150 µg/L



8 Methlynaphthalene, 2-(1-) *** 3.6 1500 µg/L

9 Acenaphthene < 0.2 600 µg/L

10 Acenaphthylene < 0.2 1.4 µg/L

11 Anthracene 0.18 1 µg/L

12 Benz[a]anthracene < 0.2 1.8 µg/L

13 Benzo[a]pyrene < 0.01 0.81 µg/L

14 Benzo[b]fluoranthene < 0.1 0.75 µg/L

15 Benzo[ghi]perylene < 0.2 0.2 µg/L

16 Benzo[k]fluoranthene < 0.1 0.4 µg/L

17 Chrysene < 0.1 0.7 µg/L

18 Dibenz[a h]anthracene < 0.2 0.4 µg/L

19 Fluoranthene < 0.2 73 µg/L

20 Fluorene 0.3 290 µg/L

21 Indeno[1 2 3-cd]pyrene < 0.2 0.2 µg/L

22 Naphthalene 2.3 1400 µg/L

23 Phenanthrene 0.5 380 µg/L

24 Pyrene < 0.2 5.7 µg/L

25 Antimony < 0.5 16000 µg/L

26 Arsenic 2.9 1500 µg/L

27 Barium 238 23000 µg/L

28 Beryllium < 0.5 53 µg/L

29 Boron (total) 74.9 36000 µg/L

30 Cadmium < 0.2 2.1 µg/L

31 Chromium Total 6.2 640 µg/L

32 Cobalt 14.6 52 µg/L

33 Copper 5 69 µg/L

34 Lead 4.5 20 µg/L

35 Molybdenum 4.9 7300 µg/L

36 Nickel 7.3 390 µg/L

37 Selenium 2 50 µg/L

38 Silver 0.6 1.2 µg/L

39 Thallium < 0.3 400 µg/L


38 Silver 0.6 1.2 µg/L

39 Thallium < 0.3 400 µg/L

40 Uranium 5.1 330 µg/L

41 Vanadium 2 200 µg/L

42 Zinc 36 890 µg/L

43 Tetrachloroethane, 1,1,1,2- < 0.04 3.3 µg/L

44 Trichloroethane, 1,1,1- 0.3 640 µg/L

45 Tetrachloroethane, 1,1,2,2- < 0.1 3.2 µg/L

46 Trichloroethane, 1,1,2- 0.2 4.7 µg/L

47 Dichloroethane, 1,1- < 0.3 320 µg/L

48 Dichloroethylene, 1,1- < 0.3 1.6 µg/L

49 Dichlorobenzene, 1,2- < 0.1 4600 µg/L

50 Dichloroethane, 1,2- < 0.2 1.6 µg/L

51 Dichloropropane, 1,2- < 0.2 16 µg/L


53 Dichloropropene,1,3- < 0.3 5.2 µg/L


55 Acetone < 930 100000 µg/L

56 Bromodichloromethane < 0.2 67000 µg/L

57 Bromoform < 0.1 380 µg/L

58 Bromomethane < 0.2 5.6 µg/L

59 Carbon Tetrachloride < 0.2 0.79 µg/L

60 Chlorobenzene 0.34 500 µg/L

61 Chloroform < 0.2 2.4 µg/L

62 Dichloroethylene, 1,2-cis- < 0.2 1.6 µg/L

63 Dibromochloromethane < 0.1 65000 µg/L

64 Dichlorodifluoromethane < 0.2 3500 µg/L

65 Ethylene dibromide < 0.1 0.25 µg/L

66 Methyl Ethyl Ketone 68 470000 µg/L

67 Methyl Isobutyl Ketone < 1 140000 µg/L

68 Methyl tert-Butyl Ether (MTBE) < 0.2 190 µg/L

69 Methylene Chloride < 0.3 610 µg/L

70 Hexane (n) < 0.2 51 µg/L

71 Styrene < 0.1 1300 µg/L

72 Tetrachloroethylene < 0.2 1.6 µg/L

73 Dichloroethylene, 1,2-trans- < 0.2 1.6 µg/L

74 Trichloroethylene < 0.2 1.6 µg/L

75 Vinyl Chloride < 0.17 0.5 µg/L

76 Toluene 4.3 14000 µg/L

77 Trichlorofluoromethane < 1.6 2000 µg/L


Remedial Action and Mitigation

Remediated Soils

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. Indicate the remediation process or processes used and the estimated amount of soil remediated by each identified process.

Soil Remediation Process Estimated Quantity of Soil (in-ground volume in m³)

Soil Excavation 5,355.0

Description of Remediation

Description of any action taken to reduce the concentration of contaminants (including soil removals) on, in or under the RSC property.

Excavation and off-site disposal of 5,355 m3 of soil.

Soil or Sediment Removed and Not Returned

Estimated quantities of soil or sediment, if any, removed from and not returned to the RSC property.

Estimated Quantity of Soil (in-ground volume in m³) 5,355.0

Estimated Quantity of Sediment (in-ground volume in m³) 0.0

Soil Brought to the Property

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 and that is identified in section 28 of Schedule A.

Estimated Quantity of Soil Brought to the Property(in-ground volume in m³)

0.0


Ground Water Control or Treatment Measures

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.

N/A

Ground water control or treatment measures that are required for the RSC property after the certification date.

N/A

Estimated volume of ground water, if any, removed from and not returned to the RSC property.

Estimated Volume of Ground Water (in litres) 0.0


Other Activities Including Risk Management Measures

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.

N/A

Constructed works that after the certification date, are required to control or otherwise mitigate the release or movement of known existing contaminants at the RSC property.

N/A

Monitoring or Maintenance

Soil Management Measures

Soil monitoring requirements or any requirements for care, maintenance or replacement or any monitoring or control works for known existing contaminants, if any, on the RSC property, after the certification date.

N/A

Ground Water Management Measures

Ground water monitoring requirements or requirements for care, maintenance or replacement of any monitoring or control works or known existing contaminants, if any, on the RSC property, after the certification date.

N/A

Remediated or Removed Soil, Sediment or Ground Water From Near Property Boundary

Has any soil, sediment or ground water at the RSC property that is or was located within 3 metres of the RSC property boundary been remediated or removed for the purpose of remediation?

Yes


Qualified Person’s Statements and CertificationsAs the qualified person, I certify that:

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 2014/06/30, 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.

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.

I have, within the six months immediately before the submission of this record of site condition, given written notice of intention to apply non-potable ground water site condition standards to the clerk of the local municipality in which the property is located and the clerk of any upper-tier municipality in which the property is located.

As of 2014/06/30, 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 37 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 2014/06/30, 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 and my employer EXP SERVICES INC.does not hold and has 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 assessmentor 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 RSCare true as of 2014/06/30.

By signing this RSC, I make no express or implied warranties or guarantees.

By checking the boxes above, and entering my membership/licence number in this submission, I, CARLA REYNOLDS, a qualified person as defined in section 5 of O. Reg. 153/04 am, on 2014/08/07:

a) signing this record of site condition submission as a qualified person; and b) making all certifications required as a qualified person for this record of site condition.

I Agree


Additional Documentation Provided by Property Owner or AgentThe following documents have been submitted to the Ministry of the Environment as part of the record of site condition

Certificate of Status or equivalent for the owner

Lawyer’s letter consisting of a legal description of the property

Copy of any deed(s), transfer(s) or other document(s) by which the RSC property was acquired

A Current plan of Survey

Area(s) of Potential Environmental Concern

Table of Current and Past Uses of the Phase One Property

Phase 2 Conceptual Site Model

Owner or agent certification statements

v 4.1.1



Request ID: 016661920 Province of Ontario Date Report Produced: 2014/07/18Demande n° : Province de l'Ontario Document produit le :Transaction ID: 54847354 Ministry of Government Services Time Report Produced: 11:32:38Transaction n° : Ministère des Services gouvernementaux Imprimé à :Category ID: CTCatégorie :

CERTIFICATE OF STATUSATTESTATION DU STATUT JURIDIQUE

This is to certify that according to the D'après les dossiers du Ministère desrecords of the Ministry of Government Services gouvernementaux, nous attestonsServices que la société

A M I C A ( S W A N L A K E ) C O R P O R A T I O N

Ontario Corporation Number Numéro matricule de la société (Ontario)

0 0 1 3 6 6 2 1 0

is a corporation incorporated, est une société constituée, prorogée ou néeamalgamated or continued under d'une fusion aux termes des lois de lathe laws of the Province of Ontario. Province de l'Ontario.

The corporation came into existence on La société a été fondée le

J U L Y 1 9 J U I L L E T , 1 9 9 9

and has not been dissolved. et n'est pas dissoute.

Dated Fait le

J U L Y 1 8 J U I L L E T , 2 0 1 4

DirectorDirecteur

The issuance of this certifcate in electronic form is authorized by the Ministry of Government Services.

La délivrance du présent certificat sous forme électronique est autorisée par le Ministère des Services gouvernementaux.

PHSE ONE, PHASE TWO ANDRSC PROPERTY BOUNDARY

TABLE OF AREAS OF POTENTIAL ENVIRONMENTAL CONCERN 6380 16th Avenue, Markham, Ontario Project# GOR'0010732'A0 Record of Site Condition Filing

exp Services Inc. 220 Commerce Valley Drive West Suite 500 Markham, Ontario L3T 0A8 Canada

Table of Areas of Potential Environmental Concern

APEC

Location of APEC on

Phase One Property

PCA Location of

PCA (on�site or off�site)

Contaminants of Potential

Environmental Concern

Media Potentially Impacted (Ground

water, soil, and/or

sediment)

A Entire site

(30) Importation of fill material of unknown quality (58) Waste disposal and waste management, including thermal treatment, landfilling and transfer of waste, other than use of biosoils as soil conditioners

S1,S3' On'

site

Metals and Inorganics,

VOCs, BTEX, PHCs, PAHs

Soil and ground water

B Southern

portion of site

(28) Gasoline and Associate Products Storage in Fixed Tanks

S2'On'site BTEX, PHCs Soil and ground water

Note: No sediment was present at the subject property.

TABLE OF CURRENT AND PAST USES OF THE PHASE TWO PROPERTY 6380 16th Avenue, Markham, Ontario Project# GOR*0010732*A0 Record of Site Condition Filing

1

TABLE OF CURRENT AND PAST USES OF THE PHASE TWO PROPERTY Current and Past Uses of 6380 16

th Avenue

Year Name of Owner Description of Property Use

Property Use

Other Observations from Aerial

Photographs, Fire Insurance Plans, etc.

October 1847 to April 1882

Peter Ramer Agricultural/ Undeveloped

Agricultural Based on aerial photographs from 1961 (earliest available), the site appears to be agricultural or undeveloped. There are no visible structures located at the site. No street directory listing for this address is available prior to 1989 (inclusive). It was concluded that the land was either undeveloped or being used for agricultural purposes during this period. No potentially contaminating activities or areas of potential environmental concern were identified from the sources researched.

April 1882 to July 1883

Marka Reesor

July 1883 to May 1904

Diane Grove

May 1904 to March 1915

Joseph Grove

March 1915 to July 1937

Amos Grove

July 1937 to July 1965

Fredrick L. Grove and Roy H. Grove

July 1965 to May 1989

William R. Warneck and Gared Johnston

1965 to 1970s – Operated as a sand and gravel quarry 1970s to 1980s * sections of quarry backfilled with fill, including construction debris. 1984 – Swan Lake classified as a waste disposal site by MOE due to illegal dumping of construction debris.

Industrial According to site interviews and historical records, between the 1960s and early 1970s, the subject property and surrounding lands operated as a sand and gravel quarry. Based on the review of previous environmental reports, three USTs of unknown type and capacity were located on the southern portion of the site. By 1984, the site was classified as a waste disposal site by the Ministry of the Environment (MOE) due to illegal dumping. Based on the review of previous environmental reports, fill of unknown quality was imported onto the Swan Lake development site.

TABLE OF CURRENT AND PAST USES OF THE PHASE TWO PROPERTY 6380 16th Avenue, Markham, Ontario Project# GOR*0010732*A0 Record of Site Condition Filing

2

Year Name of Owner Description of Property Use

Property Use

Other Observations from Aerial

Photographs, Fire Insurance Plans, etc.

The historic USTs, waste disposal and importation of fill of unknown quality were identified as PCAs that may result in APECs on the site.

May 1989 to June1999

838879 Ontario Inc. Name change – Swan Lake Markham Community Ltd

1994 to 1995 *Remediation of Swan Lake development site

Industrial use According to previous environmental reports, remediation of the former quarry lands, including the subject property, was completed by Peto McCallum Ltd. between 1994 and 1995. The subject property has remained vacant from the early 1970s to present. No additional PCAs or APECs were identified during this time period.

June 1999 to April 2002

Robert George Edwards

April 2002 to May 2002

The Gimi Construction Company

May 2002 to May 2006

1521271 Ontario Inc.

May 2006 to Present

Amica (Swan Lake) Corporation

Vacant – undergoing construction for residential development

Industrial use No additional PCAs or APECs were identified during this time period.

PHASE TWO CONCEPTUAL SITE MODEL 6380 16th Avenue, Markham, Ontario Project# GOR(0010732(A0 Record of Site Condition Filing

1

1.0 Phase Two Conceptual Site Model Exp Services Inc. was retained by Kagan Shastri LLP to conduct a Phase Two Environmental Site Assessment (ESA) and provide remediation services for the site located at 6380 16

th Avenue in Markham,

Ontario (herein referred to as the “RSC property” or “site”). The site measures approximately 0.75 hectares. The legal description of the RSC property is: Part of Block 9, Plan 65M(3103, designated as Parts 14, 15 and 16 on Reference Plan 65R(22922: Town of Markham (being Part of PIN No. 03061(0114 (LT)).

1.1 Potentially Contaminating Activities Based on the findings of the Phase One investigation conducted by exp in 2013, the following potentially contaminating activities (PCAs), as defined in Table 2 of Schedule D of O. Reg. 153/04 were identified within the Phase One Study Area:

• (28) Gasoline and associated products storage in fixed tanks

• (30) Importation of fill material of unknown quality

• (58) Waste disposal and waste management, including thermal treatment, landfilling and transfer of waste, other than use of biosoils as soil conditioners

The number presented beside the PCA is associated with the PCA number in Table 2 of Schedule D of O.Reg. 153/04. A brief assessment of the identified PCAs is provided below:

Gasoline and associated products storage in fixed tanks:

The three USTs historically located on the southern portion of the site were removed by Franklin Industrial Services Inc. in September 1994. The three tanks, one with a capacity of 8,500 L and two with capacities of 10,000 L, were emptied of 11,365 L of liquid, excavated and delivered to Triple M Metal Inc. on September 26, 1994 (Report of Cleanup/Remediation, Swan Lake Development 16

th Avenue between

Hwy 48 and 9th Line, Markham, Ontario, Peto MacCallum Ltd., Consulting Engineers, November 1995).

The petroleum impacted soils associated with the tank nest were excavated in the summer of 1995. Approximately 900 m

3 of petroleum impacted soils were excavated and disposed off(site. Confirmatory

chemical testing of soils was undertaken at the time of the remediation. Fifty soil samples were analyzed for total petroleum hydrocarbons (TPH), PAHs and BTEX and seven soil samples were analyzed for VOCs and SVOCs from six excavations across the Swan Lake development, including the RSC property. The soil samples were compared to MOE Standards; where the representative samples did not comply with the Standards, the impacted soils were excavated and disposed off(site. Pre(construction excavation completed at the site in approximately 2011 resulted in the removal of all soil in the vicinity of the UST nest to a depth of greater than 3 mbgs.


2

Importation of fill of unknown quality:

Potentially impacted fill of unknown quality was identified as a PCA, resulting in an APEC on the unexcavated north(central portion of the site.

Waste disposal and waste management, including thermal treatment, landfilling and transfer of waste,

other than use of biosoils as soil conditioners:

Historically, the site was used for agricultural purposes prior to the 1960s. Between the 1960s and early 1970s, the subject property and surrounding lands operated as a sand and gravel quarry. Leftover construction materials from surrounding properties were disposed at the site by the 1980s. By 1984, the site was classified as a waste disposal site by the Ministry of the Environment (MOE) due to illegal dumping. Substantial remedial excavation of the former quarry lands, including the RSC property, was completed by Peto McCallum Ltd. between 1994 and 1995.

1.2 Areas of Potential Environmental Concern Exp conducted a Phase One ESA for the RSC property in 2013, summarizing the current and historical sources of information. Based on this review, the areas of potential environmental concern (APEC), as outlined in the table below, were identified based on the PCAs in the Phase One Study Area that would be thought to contribute to an APEC on the RSC property.

Table 1 – Areas of Potential Environmental Concern

APEC Location of APEC on Phase One Property

PCA Location of

PCA (on'site or off'site)




water, soil, and/or

sediment)

A Entire site

(30) Importation of fill material of unknown quality (58)Waste disposal and waste management, including thermal treatment, landfilling and transfer of waste, other than use of biosoils as soil conditioners

S1,S3( On(

site

Metals and Inorganics, VOCs, BTEX, PHCs, PAHs

Soil and ground water


3

APEC Location of APEC on Phase One Property

PCA Location of

PCA (on'site or off'site)




water, soil, and/or

sediment)

B Southern portion of site (28) Gasoline and Associate Products Storage in Fixed Tanks

S2(On(site BTEX, PHCs Soil and ground water

Note: No sediment was present at the subject property.

1.3 Subsurface Utilities The RSC property is currently vacant. There are no structures or current services to the site. The location of the subsurface utility corridors in and around the RSC property are shown on Figure 11. Given that contamination is present solely in soil and the relatively low mobility of the COCs, the subsurface utility corridors located along 16

th Avenue and at the north RSC property boundary are not anticipated to

provide a preferential pathway for contaminant distribution. This is further supported by the fact that leaching has not occurred in ground water as all ground water parameters analyzed were within MOE Table 9 Standards.

2.0 Physical Setting The RSC property is located in the physiographic region known as the Peel Plain. The native soils consist of sand and gravel to silt till (Physiography of Southern Ontario, Chapman and Putnam, 1984). This is supported by observations from previous environmental and geotechnical reports, which generally describe site stratigraphy as a layer of sandy silt to a maximum depth of 4.9 mbgs, underlain by gravelly sand to a maximum depth of 5.8 mbgs. No bedrock was encountered during the environmental and geotechnical investigations. Based on the results of the Phase Two investigation, the site stratigraphy is determined to be approximately 4 to 5 metres of brown sandy silt underlain by gravelly sand. Clayey silt was found at TH1 at a depth of 2.0 to 4.6 mbgs. Bedrock was not encountered during the Phase Two Investigation. However, according to the Bedrock Topography of the Greater Toronto and Oak Ridges Moraine Areas, Southern Ontario (Map 3419, 1998), bedrock at the RSC property can be found at approximately 90 metres above sea level (masl). With respect to Section 43.1 of the O.Reg.153/04, the subject property is not considered to be a shallow soil property. A map of the subject property from the Ontario Base Map series available through the Natural Resources Atlas of Canada was reviewed. Based on the map, the topography in the vicinity of the site appeared relatively flat, sloping southwest. The topographic contour lines confirmed that local ground water is


4

expected to flow southwest towards the Rouge River and regional ground water flow is expected to flow southeast towards Lake Ontario. The topography was confirmed during the site reconnaissance.

The ground water table was measured between 96.12 to 97.78 masl in the native sandy silt aquifer during the Phase Two ESA completed by exp in July 2013. During the Phase Two ESA, the ground water table was found in the native sandy silt unit, having an average hydraulic conductivity of 2.83 x 10

(3 cm/sec. Based on a calculated horizontal hydraulic gradient

of 0.026 m/m, and 30% porosity, Darcy’s Law was used to calculate an approximate ground water velocity of 77 metres per year in the sandy silt. The southwesterly ground water flow direction and hydraulic gradient were measured on June 21, 2013. Ground water contours are illustrated in Figure 10. Based on geological stratigraphy, including surficial and bedrock topography, observed land slope towards the Rouge River, and proximity to surface water features, ground water flow beneath the site is inferred to be southwest towards the Rouge River. At the regional scale, ground water flow is estimated to be southeast towards Lake Ontario. Based on the distance to Swan Lake to the north, the site includes land within 30 metres of a water body as defined in O.Reg. 153/04, Section 43.1. The site is not considered to be a sensitive site, as defined in O.Reg. 153/04, Section 41, for the following reasons: The site does not include and is not within 30 metres of an area of natural significance and soil samples had a pH of between 5 and 9, and the site is not considered to have shallow soil. As a result, the Table 9 Standards for land within 30 metres of a water body are appropriate for the site. Pre(construction excavation was completed at the site in approximately 2011. Approximately 75% of the site was excavated to a depth of approximately 3 to 4 metres below ground surface (mbgs), including the area surrounding the former UST tank nest. The walls of the excavation were graded for safety, and no backfilling was completed in anticipation of future site development. During the site reconnaissance conducted by exp in July 2013, the site was observed to be vacant and undeveloped. The site remained primarily an open excavation, with the exception of an unexcavated area on the north portion of the site. A Locality Plan and Site Plan are provided as Figures 1 and 2, respectively. A proposed low(rise seniors residence is proposed to be located within the excavated footprint on the west and south portions of the site.

3.0 Current Site Status 3.1 Soil

During the 2013 Phase Two ESA, soil samples were collected from test holes TH1 to TH10 from depths ranging from grade to 4.3 mbgs. One worst case soil samples was submitted from each test hole for analysis of the potential COCs including VOCs, PHC fractions F1 to F4, PAHs, and metals and inorganic parameters.


5

Contaminant concentrations were measured to exceed the Table 9 Standards beneath the west portion of the previously unexcavated portion of land located on the north(central portion of the site. The following contaminants were identified in soil:

• One soil sample (TH2(SS1, at a depth ranging from 0 to 0.6 mbgs) exhibited a value of electrical conductivity (EC) exceeding the Table 9 Standards;

• One soil sample (TH7(SS1, at a depth ranging from 0 to 0.6 mbgs) exhibited concentrations of polycyclic aromatic hydrocarbons (PAHs: benzo(a)pyrene and fluoranthene) exceeding the Table 9 Standards;

• One soil sample (TH7(SS7, at a depth ranging from 3.7 to 4.3 mbgs) exhibited concentrations of petroleum hydrocarbon (PHC) fractions F2 and F3 exceeding the Table 9 Standards;

• One soil sample (TH11(SS7, a duplicate of TH7(SS7, at a depth ranging from 3.7 to 4.3 mbgs) exhibited concentrations of petroleum hydrocarbon (PHC) fraction F2 and F3 exceeding the Table 9 Standards;

• One soil sample (TH10(SS3, at a depth ranging from 1.5 to 1.8 mbgs) exhibited concentrations of PAHs (acenaphthene, anthracene, benzo(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, benzo(k)fluoranthene, fluoranthene, fluorene, indeno(1,2,3(cd)pyrene, naphthalene, phenanthrene, and pyrene) and metals (Hot Water Soluble (HWS) boron) exceeding the MOE Table 9 Standards.

Subsequent remedial earthworks were undertaken in 2014 (expa, 2014) to address the soil impacts identified during the Phase Two ESA in APEC A. Confirmatory samples obtained at the margins of the excavation were within the Table 9 Standards for all parameters analyzed. Soil remediation activities and confirmatory sampling are detailed in Section 4.0, below. All soil samples obtained during the Phase Two ESA Update (expb, 2014) were within the Table 9 Standards for all parameters analyzed. No impacts were identified in APEC B (former UST nest) during the Phase Two ESA Update. No further remedial action is necessary for soil at the site.

3.2 Ground Water The ground water samples collected from monitors installed at TH1, TH2, TH3, TH7 and TH201 were within the MOE Table 9 Standards for metals, PAHs, VOCs and PHCs. As such, no remedial action is necessary for ground water at the site. No sediment was present at the site.

3.3 Contaminants Exceedances of the Table 9 Soil Standards measured at TH2, TH7 and TH10 in APEC A are attributed to PCAs S1 (importation of fill of unknown quality) and S3 (waste disposal and waste management). The Cross Section Plan is presented as Figure 4. The vertical extent of the contamination was delineated to a maximum depth of less than 7.5 mbgs, and is shown in Figures 5, 6, 8 and 9. The lateral distribution of soil contamination was delineated to an area of approximately 760 m

2, and is illustrated in Figure 7.


6

As contamination at the RSC property is limited to soil only and soil mobility is negligible, migration of contaminants off(site is not anticipated. No climatic or meterological conditions are known to have influenced distribution and migration of the contaminants at the property. As there are no buildings or subsurface structures currently on(site, soil vapour intrusion is not a potential concern. Ground water at the site and in the site’s vicinity is non(potable. Statements of non(objection to the application were obtained from the upper tier (York Region) and lower tier (City of Markham) municipalities. The appropriate generic clean(up Standards for the RSC property were the Table 9 Generic Site Condition Standards for Use within 30 metres of Water Body for all types of property use and all soil textures, as listed in the MOE technical document Soil, Ground Water and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act (MOE Standards) referenced by the Ontario Record of Site Condition Regulation (O.Reg. 153/04).

4.0 Description of Excavation Activities at the Phase Two Property

Based on the findings of the Phase One and Two ESAs, areas of impacted soil were identified at the RSC property. Due to the localized nature of soil impacts, excavation and disposal of the impacted soil was identified as the most cost effective and expedient method for remediation of the site. Excavation of soil impacted with COCs in exceedance of the MOE Table 9 Standards was conducted from January 20 to February 27, 2014. Soil suspected to exceed the MOE Table 9 Standards was stockpiled for off(site disposal at an MOE licensed landfill. Approximately 5,355 m

3 (9,639 tonnes) of soil

exceeding the MOE Table 9 Standards was transported for off(site disposal at an MOE licensed landfill from January 20 to February 27, 2014 by Coreydale Contracting Ltd. under the observation of exp. Confirmatory soil sampling was conducted along the margins of the completed excavations at a frequency indicated by O.Reg. 153/04 Part V, Table 3, Minimum Confirmation Sampling Requirements for Excavation. Soil samples were analyzed for identified COCs, including PHC fractions F1 to F4, BTEX, PAHs, and metals and inorganics. Two excavation areas were created to remediate soil impacts. Details pertaining to these areas are provided below: Excavation 1 – Main Excavation Between January 20 to 28, 2014 and February 20 to 27, 2014, exp completed a remedial excavation on the north(central portion of the site. The excavation consisted of a rectangular trench having the dimensions of 49 metres by 15.5 metres with a depths ranging from 4.0 to 7.5 mbgs. Black staining was observed on the walls of the excavation and petroleum odour was detected at a depth of approximately 1.0 to 3.0 metres below ground surface (mbgs) in the southwestern portion of the excavation. Approximately 5,317 m

3 of soil (9,570 tonnes) exceeding the MOE Table 9 Standards was transported for

off(site disposal at an MOE licensed landfill between January 20 to January 28, 2014 and from February 20, 2014 to February 27, 2014.


7

A total of 49 confirmatory soil samples were collected from the site between January 20 and February 27, 2014. Soil samples were collected throughout the earthworks process to monitor the progress of the soil removal and to determine when the “clean” boundaries of the excavation were encountered. When a sample did not meet MOE Table 9 Standards the impacted area was excavated further and additional confirmatory soil samples were collected once the impacted soil had been removed. Seven confirmatory floor samples were collected on January 20, 2014, including a worst(case floor sample from the southern portion of the excavation that exhibited the strongest PHC odour and staining. Five confirmatory soil samples were collected on January 23, 2014, including four floor samples and one west wall sample. One worst case soil sample was collected from the floor of the excavation on January 27, 2014 and was collected from the area exhibiting the strongest PHC odour and staining. Twenty(three confirmatory soil samples were collected from the excavation on January 28, 2014, including five samples from the floor, five samples from the west wall, four samples from the north wall, one sample from the south wall and eight samples from the east wall. An additional seven confirmatory soil samples were collected from the site on February 20, 2014 after further excavation of the north and east walls had been conducted. Of the seven samples, two were collected from the east wall, three were collected from the north wall, and two were collected from the floor. These samples were collected in order to confirm that additional excavation had removed soil in exceedance of the MOE Table 9, identified during previous stages of the earth works. One sample (EW 3.5x1) collected on February 20, 2014 was found to be in exceedance of the MOE Table 9 Standards for certain PAHs; further excavation was conducted on February 28, 2014 at the impacted location. An additional metre of soil was removed from the east wall and six confirmatory samples were retrieved, including one floor sample, three east wall samples, and two north wall samples. All of the samples retrieved on February 27, 2014 were found to be within the MOE Table 9 Standards and no further excavation was warranted. Table 2: Confirmatory Sample Summary (Excavation 1)

Location

Sample ID

Sample Depth

COCs

Date Collected

Confirmatory Sample ID

Confirmatory Sample Depth

COCs

Date Collected

Final Status

Northern portion of the excavation

WC 3.9 to 4.1 mbgs PHC fractions F3 and F4 PAHs January 20, 2014

B(B4 6.9 to 7.1 mbgs PAHs, PHCs and BTEX January 23, 2014

The northern portion of the excavation was advanced to a depth of 7.1 metres. B(B4 was within the MOE Table 9 Standards for all parameters analyzed.


8

Location

Sample ID

Sample Depth

COCs

Date Collected



COCs

Date Collected

Final Status

East wall at northern portion of the excavation

B(E1 0.2 to 0.4 mbgs PAHs January 20, 2014

BE7 2.4 to 2.6 mbgs PAHs February 20, 2014

The eastern wall was excavated eastward by 1 metre. BE7 was within the MOE Table 9 Standards for all parameters analyzed.

East Wall

B(E3 1.9 to 2.1 mbgs PHC fractions F2 and F3 January 20, 2014

BE7 2.4 to 2.6 mbgs PHCs and BTEX February 20, 2014

The eastern wall was excavated eastward by 1.5 metres. BE7 was within the MOE Table 9 Standards for all parameters analyzed.

Centre of excavation

Worst Case 3.9 to 4.1 mbgs PAHs January 27, 2014

3.5 base 6.9 to 7.1 PAHs February 27, 2014

The floor of the excavation was advanced to a depth of 7.1 metres. 3.5 base was within the MOE Table 9 Standards for all parameters analyzed.

North Wall

NW 2X1 3.4 to 3.6 mbgs PAHs January 28, 2014

NW 2.5X1 2.4 to 2.6 mbgs PAHs February 20, 2014

The northern wall was excavated northward by 1 metre. NW 2.5X1 was within the MOE Table 9 Standards for all parameters analyzed.

North Wall

NW 1X1 3.4 to 3.6 mbgs PAHs January 28, 2014

NW 1.5X1 2.4 to 2.6 mbgs PAHs February 20, 2014

The northern wall was excavated northward by 1 metre. NW 1.5X1 was within the MOE Table 9 Standards for all parameters analyzed.


9

Location

Sample ID

Sample Depth

COCs

Date Collected



COCs

Date Collected

Final Status

East Wall

EW 4X1 4.1 to 1.6 mbgs PAHs January 28, 2014

EW 3.5X1 2.4 to 2.6 mbgs PAHs February 20, 2014

The eastern wall was excavated eastward by 1.5 metres. EW 3.5x1 met the Table 9 Standards for all parameters analyzed with the exception of fluoranthene. A 0.5 metre x 0.5 metre square of soil was excavated from this location and additional soil samples (EW3.5 and duplicate 4.5 EW) were collected and analyzed for PAHs. Two wall samples (3.5 NW and 3.5 EW) and 1 floor sample (3.5 base) were also retrieved from the area near EW 3.5X1 and analyzed for PAHs. The average concentration of 3.5 EW and its duplicate 4.5 EW were within the MOE Table 9 Standards for all the parameters analyzed 3.5 EW, 3.5 NW, 3.5 base were all within the MOE Table 9 Standards for all parameters analyzed

Excavation 2 – Electrical Conductivity Delineation at East Wall of the Excavation On January 28, 2014, soil impacted with electrical conductivity (EC), identified at the eastern wall of Excavation 1 (EW2(Comp), was removed by Coreydale Contracting Ltd. under the observation of exp. The excavation consisted of a square pit having the dimensions of 5.0 by 5.0 metres to a maximum depth of 1.5 mbgs. A total of approximately 38 m

3 (69 tonnes)

of impacted soil was removed and hauled to an

MOE licensed landfill on January 28, 201. Locations of the remedial excavations are indicated on Figure 2. Four confirmatory samples were collected (C(East Wall, C(South Wall, C(Base East, C( Base West) on January 28, 2014, including two composite floor samples and two composite sidewall samples. Soil samples were analyzed for EC and sodium adsorption ratio (SAR). All soil samples retrieved from Excavation 2 were within the MOE Table 9 Standards for all of the parameters analyzed. Thus, no further soil removal from this portion of the excavation was required.


10

A summary of samples found to exceed the MOE Table 9 Standards along with their corresponding “clean” confirmatory sample is presented in Table 3.

Table 3: Confirmatory Sample Summary (Excavation 2)

Location

Sample ID

Sample Depth

COCs

Date Collected



COCs

Date Collected

Final Status

East Wall

EW(2 Comp 0.4 to 0.6 mbgs EC January 28, 2014

Two wall samples (C( East Wall and C(South Wall) and 2 floor samples (C(Base East and C(Base West) EC January 28, 2014

C( East Wall, C(South Wall, C(Base East and C(Base West were all within the MOE Table 9 Standards for all parameters analyzed

5.0 Contaminant Pathways and Receptors Figures 12 and 13 present the human health and ecological conceptual site models (HHCSM and ECSM, respectively) based on site conditions prior to remediation. These figures, along with Figures 1 to 11 provide the information required as follows:

- Contaminant release pathways - Transport pathways - Human and ecological receptors located on, in, or under the RSC Property - Receptor exposure points - Routes of exposure

The HHCSM and ECSM provide a diagram showing the sources, release, and transport mechanisms; exposure routes; and receptors. The CSMs identify the complete exposure pathways where receptors might make direct contact with COCs in soil and ground water, or where they may indirectly be exposed to COCs in soil or ground water via vapour transport or other pathways. Additionally, the CSM identifies pathways considered insignificant or negligible because the pathways may be incomplete or blocked.

6.0 Uncertainty in the Phase Two Investigation

The investigation undertaken by exp with respect to this investigation and any conclusions or recommendations resulting from the work reflect exp’s judgment based on the site conditions observed at the time of the site inspection on the date(s) set out in the report, and on information available at the time of preparation of this work. Exp has confirmed neither the completeness nor the accuracy of the records that were provided by others; as such, the historical records review is identified as a potential source of


11

uncertainty during the investigation. The CSM is developed using multiple lines of evidence, searches and source information to make every reasonable attempt to ensure that findings of environmental significance are captured. To reduce uncertainty in the analytical results obtained during the Phase Two ESA, a documented quality assurance/quality control (QA/QC) program, including Field QA/QC and Laboratory QA/QC components, was implemented. Written field and laboratory sampling procedures for soil and ground water developed by exp were used to ensure consistency in sample collection and preparation of samples for submission to the laboratory. The Ministry of Environment (MOE) document entitled Guidance on Sampling and Analytical Methods for Use at Contaminated Sites in Ontario, December 1996, was used as a reference. Sampling analysis was performed using generally accepted principles and with appropriate sampling equipment. The staff involved in the field sampling have participated in regular, ongoing exp training programs and were qualified and experienced in collecting, describing, and preparing environmental samples for laboratory analysis. Data quality objectives for the parameters of concern were set to meet acceptable Reporting Detection Limits (RDLs) to achieve the goal of defining areas where such parameters are present at levels in excess of applicable generic Standards. A field QA/QC program of blind field duplicate samples, field blank samples, trip blank samples and trip spike samples were implemented to reduce uncertainty related to the QA/QC. Relative percent differences (RPDs) were calculated for each of the sample/field duplicate sets and compared to acceptable alert limit criteria for each parameter. No exccedances of the alert criteria were measured, and no issues were identified during QA/QC checks that would increase uncertainty with respect to the findings of the Phase Two ESA. Any uncertainty or absence of information in the records review, interviews, and site reconnaissance components of the Phase One investigation, or any uncertainty or absence of information within the Phase Two investigation, are not anticipated to materially affect the validity of the conceptual site model (CSM) or Phase Two ESA conclusions.

SCALE: SOURCE:

DRAWN BY

10732-LOCALITY

M.W. K.K.

CHECKED BY

1

FIGURE

JOB NUMBER: 10732 DATE: JUNE 2014

LOCALITY PLAN

N

0 500m250

6380 16th AVENUE,MARKHAM, ONTARIO

GOOGLE MAPS

SITE

SCALE: SOURCE: LEGEND:

DRAWN BY

10732-SITE PLAN

M.W. C.C.

CHECKED BY

2

FIGURE


SITE PLAN

N

0 25m5


- ww4.yorkmaps.ca

- Google Earth

- Peto MacCallum

- Field Measurements by exp Staff

PROPERTY BOUNDARY

TEST HOLE (exp, 2013)

TEST HOLE WITH MONITOR (exp, 2013)

EXCAVATION

ORIGINAL EXCAVATION

APPROXIMATE FORMER LOCATIONOF 3 USTs (REMOVED IN 1995)

SWAN LAKE

SW

AN

LA

KE

BO

UL

EV

AR

D

LA

KE

SID

E V

IST

A W

AY

16th AVENUE

SIDEWALK

SALES PAVILLION

SALES PAVILLION

EXCAVATION 1

EXCAVATION 2

A

B

C

D

E

F

TH1

TH2

TH7

TH3

TH6

TH5

TH4

TH8

TH10

TH9

TH201

RESIDENTIAL RESIDENTIAL


DRAWN BY

10732-APECs-JUN14

M.W. C.C.

CHECKED BY

3

FIGURE


PHASE ONECONCEPTUAL SITE MODEL

N

0 25m5


- ww4.yorkmaps.ca

- Google Earth

- Peto MacCallum


PROPERTY BOUNDARY



EXCAVATION

ADJACENT PROPERTY USE

GROUND WATER FLOW DIRECTION

POTENTIAL CONTAMINATING ACTIVITY

S1

S2

S3

(30) Importation of fill of unknown quality

(28) Gasoline and associated products storage in fixed tanks

(58) Waste disposal and waste management Note: (#) Indicates item number of O. Reg. 153/04 Schedule D, Part VI, Table 2

AREAS OF POTENTIAL ENVIRONMENTAL CONCERN (APECs)

A

B

SOURCED FROM PCAs S1 AND S3

SOURCED FROM PCA S2RESIDENTIAL


APPROXIMATE EXTENT OFHYDROCARBON IMPACTED SOIL(REMOVED IN 1995)

A

B

SWAN LAKE

SW

AN

LA

KE

BO

UL

EV

AR

D

LA

KE

SID

E V

IST

A W

AY

16th AVENUE

SIDEWALK

SALES PAVILLION

SALES PAVILLION

RESIDENTIAL and COMMERCIAL

RESIDENTIAL and COMMERCIAL

TH1

TH2

TH7

TH3

TH6

TH5

TH4

TH8

TH10

TH9

S1,S3

S2

TH201


DRAWN BY

10732-CROSS SECTION PLAN-JUN4

M.W./J.S. C.C.

CHECKED BY

4

FIGURE


CROSS SECTIONPLAN

N

0 25m5


- ww4.yorkmaps.ca

- Google Earth

- Peto MacCallum


PROPERTY BOUNDARY



EXCAVATION

ORIGINAL EXCAVATION

CROSS SECTION LOCATION


SWAN LAKE

SW

AN

LA

KE

RO

AD

LA

KE

SID

E V

IST

A W

AY

16th AVENUE

SIDEWALK

SALES PAVILLION

SALES PAVILLION

EXCAVATION 1

EXCAVATION 2

A

B

C

D

E

F

TH1

TH2

TH7

TH3

TH6

TH5

TH4

TH8

TH10

TH9

A

A'

B

B'

TH201

SW

AN

LA

KE

BO

UL

EV

AR

D


DRAWN BY

10732-CROSS SECTION A-JUN14

M.W./J.S. A.C.

CHECKED BY

5

FIGURE


CROSS SECTION A-A'


ww4.yorkmaps.ca, Google Earth and

Field Measurements by exp Staff

TEST HOLE

SCREEN

INDICATES SAMPLED INTERVAL EXCEEDS TABLE 9 STANDARDS

GROUND WATER ELEVATION (metres above sea level)

AS SHOWN

2X VERTICAL EXAGGERATION

SILTY SAND/SANDY SILT

GRAVELLY SAND

0

1

2

3

4

5

6

7

8

10 30

Me

tre

s B

elo

w G

rou

nd

Su

rfa

ce

40m

TH8TH2

97.77

A A'

Base 3X2

Base 3X3BB6

NW Corner

EXCAVATION 1(SOIL REMOVED)


TH10

Base 4+5Worst Case

TH10 5-Jun-13

Depth = 1.5 - 1.8mAcp = 0.52Ant = 1.2

1.5B(a)Ant = 1.4B(a)Pyr =1.4B(b)Fl =

B(k)Fl = 0.72 4.1 FL =

0.76 FN =I(1,2,3-cd)Pyr = 0.45Naphth = 0.76

3.4Ph = 3.4Pyr =

1.93B (HWS) =

WORST CASE 27-Jan-14

Depth = 4.0mB(a)Ant = 0.53B(a)Pyr = 0.31FL = 1.1

Base 3x2 28-Jan-14

Depth = 2.0mF2 = 16

Acp

Ace

Ant

B(a)Ant

B(a)Pyr

B(b)Fl

B(k)Fl

FL

FN

I(1,2,3-cd)Pyr

Naphth

Ph

Pyr

PARAMETER ABBREVIATIONONTARIO REGULATION

153/04 TABLE 9SOIL STANDARDS*

Acenaphtylene

0.072

Anthracene 0.22

Benzo(a)Anthracene 0.36

Benzo(a)Pyrene 0.3

Benzo(b)Fluoranthene 0.47

Benzo(k)Fluoranthene 0.48

Fluoranthene 0.69

Fluorene 0.19

Indeno(1,2,3-cd)Pyrene 0.23

Napahthanlene 0.09

Phenanthrene 0.69

Pyrene 1

PAHs

Metals and Inorganics

PHCs

B (HWS)

F2

Boron (Hot Water Soluble)

Electrical Conductivity EC

1.5

10

0.7

Petroleum Hydrocarbons F2

*ALL STANDARDS SHOWN ARE FOR RESIDENTIAL/PARKLAND/INSTITUTIONAL PROPERTY USE WITHIN 30 METRES OF A WATER BODY, AND MEDIUM/FINETEXTURED SOIL IN A NON-POTABLE GROUND WATER CONDITION

EXCEEDANCES OF MOE TABLE 9 STANDARDS SHOWN IN RED

SOIL STANDARDS ARE IN UNITS OF g/g

Acenaphthene

0.093

TH2 15-May-13

Depth = 0-0.6mEC = 0.736

EW 6X1

WW-6+7


DRAWN BY

10732-CROSS SECTION B-JUN14

M.W./J.S. A.C.

CHECKED BY

6

FIGURE


CROSS SECTION B-B'


ww4.yorkmaps.ca, Google Earth and

Field Measurements by exp Staff

TEST HOLE

SCREEN

INDICATES SAMPLED INTERVAL EXCEEDS TABLE 9 STANDARDS

GROUND WATER ELEVATION (metres above sea level)

AS SHOWN

2X VERTICAL EXAGGERATION

SILTY SAND/SANDY SILT

GRAVELLY SAND

6

7

8m

20 30m

Metr

es

Belo

w G

round

Su

rfa

ce

100

TH7

TH7

5-Jun-13

5-Jun-13

Depth = 3.7 - 4.3mF2 = 30F3 = 940Depth = 3.7 - 4.3m (Duplicate)F2 = 34F3 = 510

0

1

5

2

3

4


Acp

Ace

Ant

B(a)Ant

B(a)Pyr

B(b)Fl

B(k)Fl

FL

FN

I(1,2,3-cd)Pyr

Naphth

Ph

Pyr

PARAMETER ABBREVIATIONONTARIO REGULATION

153/04 TABLE 9SOIL STANDARDS*

Acenaphtylene

0.072

Anthracene 0.22

Benzo(a)Anthracene 0.36

Benzo(a)Pyrene 0.3

Benzo(b)Fluoranthene 0.47

Benzo(k)Fluoranthene 0.48

Fluoranthene 0.69

Fluorene 0.19

Indeno(1,2,3-cd)Pyrene 0.23

Napahthanlene 0.09

Phenanthrene 0.69

Pyrene 1

PAHs

Metals and Inorganics

PHCs

B (HWS)

F2

Boron (Hot Water Soluble)

Electrical Conductivity EC

1.5

10

0.7

Petroleum Hydrocarbons F2

*ALL STANDARDS SHOWN ARE FOR RESIDENTIAL/PARKLAND/INSTITUTIONAL PROPERTY USE WITHIN 30 METRES OF A WATER BODY, AND MEDIUM/FINETEXTURED SOIL IN A NON-POTABLE GROUND WATER CONDITION

EXCEEDANCES OF MOE TABLE 9 STANDARDS SHOWN IN RED

SOIL STANDARDS ARE IN UNITS OF g/g

Acenaphthene

0.093

Depth = 0 - 0.6mB(a)Pyr = 0.33FL = 0.82

WC 20-Jan-14

Depth = 4.0mAcp = 0.41Ant = 0.88B(a)Ant = 1.5B(a)Pyr = 1B(b)Fl = 1.5B(k)Fl = 0.57FL = 4.2FN = 0.52I(1,2,3-cd)Pyr = 0.54Naphth = 0.17Ph = 4.4Pyr = 3.4

<10F2 = F3 = 410F4 = 180

97.77

B'

TH8

BB2 BB3

BB1 Base 8 Comp

BE7

SW Corner BB4

B

TH7

WC

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