Reference: OTCD B 17 September Soil Sampling Program th Line Road, Metcalfe, ON

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1 Trow Associates Inc. 154 Colonnade Road South Ottawa, Ontario K2E 7J5 Telephone: (613) Facsimile: (613) Web Site: Reference: OTCD B 17 September 2008 Mr. Prem Bhatia P.B. Holdings 7 Winding Way Ottawa, Ontario K2E 6T8 Dear Mr. Bhatia: Introduction Soil Sampling Program th Line Road, Metcalfe, ON The following letter summarizes the soil sampling program that was completed within the basement of the aforementioned property (Figure 1 in Appendix A). The work was completed based on recommendations provided in the report Phase I Environmental Site Assessment, Proposed Residential Subdivision, Part of Lot 19, Concession VII, Village of Metcalfe, Ottawa, ON completed by Trow Associates Inc. (Trow) in July Background In July 2008, Trow completed a Phase I Environmental Site Assessment (ESA) within a parcel of land described as Part of Lot 19, Concession VII in the Village of Metcalfe. This parcel of land also included a vacant residential dwelling identified as th Line Road, along with a garage. Based on the observations made during the site visit, an aboveground heating oil storage tank (AST) was identified within the basement of the residential building. The flooring in the basement is a dirt floor and displayed some discolouration (moisture or staining). In addition, the AST was slightly rusted and there was the potential for some remaining heating oil in the AST as it was unknown if the measuring gauge was functional. Nevertheless, the AST sounded empty at the time of the visit. Based on the above, it was recommended that soil samples be collected in the area surrounding the AST to assess potential petroleum hydrocarbon impact.

2 Soil Sampling Program th Line Road, Metcalfe, ON OTCD B Scope of Work The objectives of the soil sampling program are: Collect soil samples near the AST and submit for laboratory analysis of (PHC) to characterize the soil under the tank; Prepare a report documenting the findings of the assessment. Work Program Soil Sampling Program A total of 3 test-holes were dug, using a hand shovel, on the subject site in the area of the AST (Refer to Figure 2). The test-hole locations were selected to assess potential PHC impact in all directions from the AST. The test-holes extended to approximately 0.3 to 0.4 m from surface. Soil samples from the test holes were collected from the surface and from the bottom of the testholes to determine potential variations in PHC impact. All samples were logged noting geological properties, moisture, colour, odour and any visual or olfactory indications of contamination. The soil samples submitted are identified as F1-B, F2-B and F3-B. Each of these samples was collected from approximately 0.3 m from surface. All soil samples were collected in laboratory supplied containers. Upon collection, all samples were clearly labelled and documented in the field and immediately stored in a laboratorysupplied cooler. The samples collected from the bottom of each of the three test-holes were submitted to Paracel Laboratories ed in Ottawa (Canadian Association of Environmental Analytical Laboratories certified laboratory) for Canada-Wide Standards for petroleum hydrocarbons (CWS PHC F 1 to F 4 ) and benzene, toluene, ethylbenzene and xylenes (BTEX). Results Field Observations The soil in the basement is characterized as sand and gravel with a trace of clay and cobbles. The soils in the basement were considered moist at the time of sampling. During the digging of the test-holes, field staff did not identify any visual PHC staining and/or petroleum hydrocarbon odours. It is noted that water was infiltrating into the test-holes from the top 0.1 m of the test hole. It is unknown if that was representative of overburden groundwater or water from the footings/foundation. 2

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4 Soil Sampling Program th Line Road, Metcalfe, ON OTCD B Assessment Criteria The provincial assessment criteria were used as the primary guideline to compare analytical data. The criteria are listed in the Ontario Ministry of the Environment (MOE) Soil, Ground Water, and Sediment Standards for Use Under Part XV.1 of the Environmental Protection Act (March 9, 2004), (MOE Standards) Table 2 (Full Depth Generic Site Conditions in a Potable Ground Water Condition), residential/parkland land use. Soil Analytical Results A summary of the soil analytical results obtained from the soil sampling program is presented on Table 1 in Appendix B, along with the recommended provincial assessment criteria. The laboratory Certificates of Analysis are also included in Appendix B. As shown in the analytical tables, PHC and BTEX parameters were not detected from the submitted soil samples. Based on the field observations and analytical results, the heating-oil AST does not appear to have impacted the soil. Conclusions and Recommendations Based on field observations and the submitted sample results, the following conclusions can be made regarding the subject site: Three test-holes were completed in near the AST in the basement of the subject building. The test-holes extended to approximately 0.3 to 0.4 m in depth. The dirt floor of the basement consisted of silty sand and gravel with traces of clay and cobbles. The soils were moist but did not display any visual or olfactory evidence of petroleum hydrocarbons. One sample from each of the test-holes was submitted for analysis of PHC and BTEX. No detectable concentrations of PHC and BTEX were identified from the soil samples. Based on the above, there is no impact from the AST to the dirt floor. However, it is recommended that the AST be decommissioned in accordance with appropriate regulations if it is not intended to be used in the future. ations This report was prepared for the exclusive use of the client. Any other party without the express written consent of Trow should not rely upon the contents of this report. Conclusions regarding the environmental conditions at this site are based solely on the extent of observations and the information referenced herein. 3

5 Soil Sampling Program th Line Road, Metcalfe, ON OTEN B Appendix A: Figures

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7 Soil Sampling Program th Line Road, Metcalfe, ON OTCD B Appendix B: Analytical Summary and Certificates of Analysis

8 Trow Associates Inc. Table 1 : Summary of Soil Analytical Results Petroleum Hydrocarbons Surficial Soil Sampling Program th Line Road, Metcalfe (all values in ug/g or parts per million) OTCD A Sample ID F1-B F2-B F3-B Sample Date 19-Aug Aug Aug-08 Sample Depth (m) 0.3 m 0.3 m 0.3 m Provincial Parameter Table 2 1 Benzene 0.24 <0.03 <0.03 <0.03 Ethylbenzene 0.28 <0.05 <0.05 <0.05 Toluene 2.1 <0.05 <0.05 <0.05 Xylenes 25 <0.1 <0.1 <0.1 F 1 PHCs (C 6 -C 10 ) 30 <10 <10 <10 F 2 PHCs (C 10 -C 16 ) 150 <10 <10 <10 F 3 PHCs (C 16 -C 34 ) 400 <10 <10 <10 F 4 PHCs (C 34 -C 50 ) 2,800 <10 <10 <10 1) based on Ontario Environmental Protection Act O.Reg. 153/04 (2004) Table 2, Potable Water Usage, Residential/parkland Land Use Data Entered by: SD Data Checked by: MGM

9 Certificate of Analysis Trow Associates Inc. (Ottawa) 154 Colonnade Rd. S Ottawa, ON K2E 7J5 Attn: Shawn Doherty Client PO: Metcalfe Estates Project: OTEN B Custody: Phone: (613) Fax: (613) Report Date: 4-Sep-2008 Order Date: 28-Aug-2008 Order #: This Certificate of Analysis contains analytical data applicable to the following samples submitted: Paracel ID Client ID F1-B F2-B F3-B Approved By: Mark Foto, M.Sc. For Dale Robertson, BSc Laboratory Director Any use of these results implies your agreement that our total liabilty in connection with this work, however arising shall be limited to the amount paid by you for this work, and that our employees or agents shall not under circumstances be liable to you in connection with this work Page 1 of 7

10 Certificate of Analysis Client: Trow Associates Inc. (Ottawa) Client PO: Metcalfe Estates Analysis Summary Table Project Description: OTEN B Order #: Report Date: 04-Sep-2008 Order Date:28-Aug-2008 Analysis Method Reference/Description Extraction Date Analysis Date BTEX EPA P&T GC-MS 29-Aug-08 4-Sep-08 CCME PHC F1 CWS Tier 1 - P&T GC-FID 29-Aug-08 4-Sep-08 CCME PHC F2 - F4 CWS Tier 1 - GC-FID, extraction 2-Sep-08 4-Sep-08 Solids, % Gravimetric, calculation 2-Sep-08 2-Sep-08 Page 2 of 7

11 Certificate of Analysis Client: Trow Associates Inc. (Ottawa) Client PO: Metcalfe Estates Project Description: OTEN B Order #: Report Date: 04-Sep-2008 Order Date:28-Aug-2008 Client ID: F1-B F2-B F3-B - Sample Date: 19-Aug Aug Aug-08 - Sample ID: MDL/Units Soil Soil Soil - Physical Characteristics % Solids 0.1 % by Wt Volatiles Benzene 0.03 ug/g dry <0.03 [1] <0.03 [1] <0.03 [1] - Ethylbenzene 0.05 ug/g dry <0.05 [1] <0.05 [1] <0.05 [1] - Toluene 0.05 ug/g dry <0.05 [1] <0.05 [1] <0.05 [1] - m,p-xylenes 0.05 ug/g dry <0.05 [1] <0.05 [1] <0.05 [1] - o-xylene 0.05 ug/g dry <0.05 [1] <0.05 [1] <0.05 [1] - Toluene-d8 Surrogate 110% [1] 106% [1] 114% [1] - Hydrocarbons F1 PHCs (C6-C10) 10 ug/g dry <10 [1] <10 [1] <10 [1] - F2 PHCs (C10-C16) 10 ug/g dry <10 <10 <10 - F3 PHCs (C16-C34) 10 ug/g dry <10 <10 <10 - F4 PHCs (C34-C50) 10 ug/g dry <10 <10 <10 - Page 3 of 7

12 Order #: Certificate of Analysis Client: Trow Associates Inc. (Ottawa) Client PO: Metcalfe Estates Project Description: OTEN B Report Date: 04-Sep-2008 Order Date:28-Aug-2008 Method Quality Control: Blank Analyte Result Reporting Units Source Result %REC %REC RPD RPD Notes Hydrocarbons F1 PHCs (C6-C10) ND 10 ug/g F2 PHCs (C10-C16) ND 10 ug/g F3 PHCs (C16-C34) ND 10 ug/g F4 PHCs (C34-C50) ND 10 ug/g Volatiles Benzene ND 0.03 ug/g Ethylbenzene ND 0.05 ug/g Toluene ND 0.05 ug/g m,p-xylenes ND 0.05 ug/g o-xylene ND 0.05 ug/g Surrogate: Toluene-d ug/g Page 4 of 7

13 Order #: Certificate of Analysis Client: Trow Associates Inc. (Ottawa) Client PO: Metcalfe Estates Project Description: OTEN B Report Date: 04-Sep-2008 Order Date:28-Aug-2008 Method Quality Control: Duplicate Analyte Result Reporting Units Source Result %REC %REC RPD RPD Notes Hydrocarbons F1 PHCs (C6-C10) ND 10 ug/g dry ND 32 F2 PHCs (C10-C16) ug/g dry F3 PHCs (C16-C34) ug/g dry F4 PHCs (C34-C50) ug/g dry Volatiles Benzene ND 0.03 ug/g dry ND 50 Ethylbenzene ND 0.05 ug/g dry ND 34 Toluene ND 0.05 ug/g dry ND 32 m,p-xylenes ND 0.05 ug/g dry ND 35 o-xylene ND 0.05 ug/g dry ND 50 Surrogate: Toluene-d ug/g dry ND Page 5 of 7

14 Order #: Certificate of Analysis Client: Trow Associates Inc. (Ottawa) Client PO: Metcalfe Estates Project Description: OTEN B Report Date: 04-Sep-2008 Order Date:28-Aug-2008 Method Quality Control: Spike Analyte Result Reporting Units Source Result %REC %REC RPD RPD Notes Hydrocarbons F1 PHCs (C6-C10) ug/g ND F2 PHCs (C10-C16) ug/g ND F3 PHCs (C16-C34) ug/g ND F4 PHCs (C34-C50) ug/g ND Volatiles Benzene ug/g ND Ethylbenzene ug/g ND Toluene ug/g ND m,p-xylenes ug/g ND o-xylene ug/g ND Surrogate: Toluene-d ug/g Page 6 of 7

15 Certificate of Analysis Client: Trow Associates Inc. (Ottawa) Client PO: Metcalfe Estates Project Description: OTEN B Order #: Report Date: 04-Sep-2008 Order Date:28-Aug-2008 Sample and QC Qualifiers Notes 1- H-01 : Holding time had been exceeded upon sample receipt. Sample Data Revisions None Work Order Revisions/Comments: None Other Report Notes: n/a: not applicable MDL: Method Detection Source Result: Data used as source for matrix and duplicate samples %REC: Percent recovery. RPD: Relative percent difference. Soil results are reported on a dry weight basis when the units are denoted with 'dry'. Where %Solids is reported, moisture loss includes the loss of volatile hydrocarbons. CCME PHC additional information: - The method for the analysis of PHCs complies with the Reference Method for the CWS PHC and is validated for use in the laboratory. All prescribed quality criteria identified in the method has been met. - F1 range corrected for BTEX. - F2 to F3 ranges corrected for appropriate PAHs where available. - The gravimetric heavy hydrocarbons (F4G) are not to be added to C6 to C50 hydrocarbons. - In the case where F4 and F4G are both reported, the greater of the two results is to be used for comparison to CWS PHC criteria. Page 7 of 7

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